"-------------------------------------------------------------------------------------------" " Monthly atmospheric O18 concentrations (per mil) derived from flask air samples " " South Pole: Latitude 90.0°S Elevation 2810m " " " " Source: R. F. Keeling, S. C. Piper, A. F. Bollenbacher and S. J. Walker " " Scripps CO2 Program ( http://scrippsco2.ucsd.edu ) " " Scripps Institution of Oceanography (SIO) " " University of California " " La Jolla, California USA 92093-0244 " " " " Status of data and correspondence: " " " " These data are subject to revision based on recalibration of standard gases. Questions " " about the data should be directed to Dr. Ralph Keeling (rkeeling@ucsd.edu) and " " and Dr. Stephen Piper (scpiper@popmail.ucsd.edu), Scripps CO2 Program. " " " " Flask data in this file through 08-Feb-2010 last updated 07-Oct-2010 " " " "-------------------------------------------------------------------------------------------" " " " Please cite as: " " " " C. D. Keeling, S. C. Piper, R. B. Bacastow, M. Wahlen, T. P. Whorf, M. Heimann, and " " H. A. Meijer, Exchanges of atmospheric CO2 and 13CO2 with the terrestrial biosphere and " " oceans from 1978 to 2000. I. Global aspects, SIO Reference Series, No. 01-06, Scripps " " Institution of Oceanography, San Diego, 88 pages, 2001. " " " " If it is necessary to cite a peer-reviewed article, please cite as: " " " " C. D. Keeling, S. C. Piper, R. B. Bacastow, M. Wahlen, T. P. Whorf, M. Heimann, and " " H. A. Meijer, Atmospheric CO2 and 13CO2 exchange with the terrestrial biosphere and " " oceans from 1978 to 2000: observations and carbon cycle implications, pages 83-113, " " in "A History of Atmospheric CO2 and its effects on Plants, Animals, and Ecosystems", " " editors, Ehleringer, J.R., T. E. Cerling, M. D. Dearing, Springer Verlag, " " New York, 2005. " " " "-------------------------------------------------------------------------------------------" " " " The data file below contains 10 columns. Columns 1-4 give the dates in several redundant " " formats. Column 5 below gives monthly isotope concentrations in per-mil. This is the " " standard version of the data most often sought. The monthly values have been adjusted " " to 24:00 hours on the 15th of each month. Column 6 gives the same data after a seasonal " " adjustment to remove the quasi-regular seasonal cycle. The adjustment involves " " subtracting from the data a 4-harmonic fit with a linear gain factor. Column 7 is a " " smoothed version of the data generated from a stiff cubic spline function plus 4-harmonic " " functions with linear gain. Column 8 is the same smoothed version with the seasonal " " cycle removed. Column 9 is identical to Column 5 except that the missing values from " " Column 5 have been filled with values from Column 7. Column 10 is identical to Column 6 " " except missing values have been filled with values from Column 8. Missing values are " " denoted by -99.99 " "" Yr, Mn, Date, Date, O18,seasonally, fit, seasonally, O18, seasonally , , , , , adjusted, ,adjusted fit, filled,adjusted filled , , Excel, , [ppm], [ppm] , [ppm], [ppm], [ppm], [ppm] 1977, 01, 28140, 1977.0411, -99.99, -99.99, -99.99, -99.99, -99.99, -99.99 1977, 02, 28171, 1977.1260, -99.99, -99.99, -99.99, -99.99, -99.99, -99.99 1977, 03, 28199, 1977.2027, 0.84, 0.80, 1.00, 0.96, 0.84, 0.80 1977, 04, 28230, 1977.2877, -99.99, -99.99, 0.98, 0.98, 0.98, 0.98 1977, 05, 28260, 1977.3699, -99.99, -99.99, 0.96, 1.00, 0.96, 1.00 1977, 06, 28291, 1977.4548, -99.99, -99.99, 0.94, 1.03, 0.94, 1.03 1977, 07, 28321, 1977.5370, 0.86, 0.96, 0.94, 1.05, 0.86, 0.96 1977, 08, 28352, 1977.6219, -99.99, -99.99, 0.98, 1.06, 0.98, 1.06 1977, 09, 28383, 1977.7068, 1.06, 1.10, 1.05, 1.08, 1.06, 1.10 1977, 10, 28413, 1977.7890, 1.14, 1.12, 1.12, 1.10, 1.14, 1.12 1977, 11, 28444, 1977.8740, 1.29, 1.24, 1.17, 1.12, 1.29, 1.24 1977, 12, 28474, 1977.9562, 1.09, 1.01, 1.21, 1.13, 1.09, 1.01 1978, 01, 28505, 1978.0411, 1.42, 1.32, 1.24, 1.14, 1.42, 1.32 1978, 02, 28536, 1978.1260, 1.17, 1.09, 1.23, 1.15, 1.17, 1.09 1978, 03, 28564, 1978.2027, -99.99, -99.99, 1.20, 1.16, 1.20, 1.16 1978, 04, 28595, 1978.2877, -99.99, -99.99, 1.16, 1.16, 1.16, 1.16 1978, 05, 28625, 1978.3699, -99.99, -99.99, 1.12, 1.17, 1.12, 1.17 1978, 06, 28656, 1978.4548, 1.20, 1.29, 1.08, 1.17, 1.20, 1.29 1978, 07, 28686, 1978.5370, 1.15, 1.25, 1.06, 1.17, 1.15, 1.25 1978, 08, 28717, 1978.6219, 1.08, 1.17, 1.08, 1.16, 1.08, 1.17 1978, 09, 28748, 1978.7068, 1.23, 1.27, 1.12, 1.16, 1.23, 1.27 1978, 10, 28778, 1978.7890, 1.19, 1.17, 1.17, 1.15, 1.19, 1.17 1978, 11, 28809, 1978.8740, 1.11, 1.06, 1.19, 1.14, 1.11, 1.06 1978, 12, 28839, 1978.9562, 1.11, 1.03, 1.21, 1.13, 1.11, 1.03 1979, 01, 28870, 1979.0411, 1.30, 1.20, 1.22, 1.12, 1.30, 1.20 1979, 02, 28901, 1979.1260, 1.23, 1.15, 1.19, 1.11, 1.23, 1.15 1979, 03, 28929, 1979.2027, 1.01, 0.97, 1.15, 1.11, 1.01, 0.97 1979, 04, 28960, 1979.2877, 1.07, 1.07, 1.10, 1.10, 1.07, 1.07 1979, 05, 28990, 1979.3699, 0.96, 1.01, 1.04, 1.09, 0.96, 1.01 1979, 06, 29021, 1979.4548, -99.99, -99.99, 0.99, 1.08, 0.99, 1.08 1979, 07, 29051, 1979.5370, 1.12, 1.23, 0.97, 1.07, 1.12, 1.23 1979, 08, 29082, 1979.6219, -99.99, -99.99, 0.97, 1.06, 0.97, 1.06 1979, 09, 29113, 1979.7068, 1.12, 1.16, 1.02, 1.06, 1.12, 1.16 1979, 10, 29143, 1979.7890, 0.94, 0.92, 1.07, 1.05, 0.94, 0.92 1979, 11, 29174, 1979.8740, 1.18, 1.13, 1.10, 1.05, 1.18, 1.13 1979, 12, 29204, 1979.9562, 0.91, 0.83, 1.13, 1.05, 0.91, 0.83 1980, 01, 29235, 1980.0410, 1.04, 0.94, 1.15, 1.05, 1.04, 0.94 1980, 02, 29266, 1980.1257, 0.97, 0.89, 1.13, 1.06, 0.97, 0.89 1980, 03, 29295, 1980.2049, -99.99, -99.99, 1.10, 1.06, 1.10, 1.06 1980, 04, 29326, 1980.2896, 0.99, 0.99, 1.07, 1.07, 0.99, 0.99 1980, 05, 29356, 1980.3716, 1.03, 1.08, 1.03, 1.08, 1.03, 1.08 1980, 06, 29387, 1980.4563, 1.20, 1.29, 1.00, 1.09, 1.20, 1.29 1980, 07, 29417, 1980.5383, 0.97, 1.07, 1.00, 1.10, 0.97, 1.07 1980, 08, 29448, 1980.6230, 1.09, 1.18, 1.02, 1.11, 1.09, 1.18 1980, 09, 29479, 1980.7077, 1.07, 1.10, 1.08, 1.12, 1.07, 1.10 1980, 10, 29509, 1980.7896, 0.93, 0.91, 1.15, 1.13, 0.93, 0.91 1980, 11, 29540, 1980.8743, -99.99, -99.99, 1.19, 1.14, 1.19, 1.14 1980, 12, 29570, 1980.9563, 1.34, 1.27, 1.23, 1.15, 1.34, 1.27 1981, 01, 29601, 1981.0411, 1.26, 1.16, 1.25, 1.16, 1.26, 1.16 1981, 02, 29632, 1981.1260, -99.99, -99.99, 1.24, 1.16, 1.24, 1.16 1981, 03, 29660, 1981.2027, 1.29, 1.25, 1.21, 1.17, 1.29, 1.25 1981, 04, 29691, 1981.2877, 1.14, 1.14, 1.17, 1.17, 1.14, 1.14 1981, 05, 29721, 1981.3699, 1.18, 1.23, 1.12, 1.17, 1.18, 1.23 1981, 06, 29752, 1981.4548, 1.16, 1.25, 1.08, 1.17, 1.16, 1.25 1981, 07, 29782, 1981.5370, 1.16, 1.27, 1.06, 1.17, 1.16, 1.27 1981, 08, 29813, 1981.6219, 1.20, 1.29, 1.07, 1.16, 1.20, 1.29 1981, 09, 29844, 1981.7068, 0.99, 1.02, 1.12, 1.15, 0.99, 1.02 1981, 10, 29874, 1981.7890, 1.28, 1.26, 1.16, 1.14, 1.28, 1.26 1981, 11, 29905, 1981.8740, 1.24, 1.19, 1.19, 1.13, 1.24, 1.19 1981, 12, 29935, 1981.9562, 1.17, 1.09, 1.20, 1.12, 1.17, 1.09 1982, 01, 29966, 1982.0411, -99.99, -99.99, 1.21, 1.11, 1.21, 1.11 1982, 02, 29997, 1982.1260, -99.99, -99.99, 1.18, 1.10, 1.18, 1.10 1982, 03, 30025, 1982.2027, 1.05, 1.01, 1.13, 1.09, 1.05, 1.01 1982, 04, 30056, 1982.2877, 1.20, 1.20, 1.09, 1.08, 1.20, 1.20 1982, 05, 30086, 1982.3699, 1.09, 1.14, 1.03, 1.08, 1.09, 1.14 1982, 06, 30117, 1982.4548, 0.89, 0.97, 0.99, 1.07, 0.89, 0.97 1982, 07, 30147, 1982.5370, 0.82, 0.93, 0.97, 1.07, 0.82, 0.93 1982, 08, 30178, 1982.6219, 0.95, 1.04, 0.98, 1.07, 0.95, 1.04 1982, 09, 30209, 1982.7068, 1.08, 1.12, 1.04, 1.07, 1.08, 1.12 1982, 10, 30239, 1982.7890, 0.97, 0.95, 1.10, 1.08, 0.97, 0.95 1982, 11, 30270, 1982.8740, 0.97, 0.92, 1.14, 1.09, 0.97, 0.92 1982, 12, 30300, 1982.9562, 1.09, 1.01, 1.18, 1.10, 1.09, 1.01 1983, 01, 30331, 1983.0411, 1.08, 0.98, 1.21, 1.12, 1.08, 0.98 1983, 02, 30362, 1983.1260, 1.12, 1.04, 1.21, 1.13, 1.12, 1.04 1983, 03, 30390, 1983.2027, 1.03, 0.99, 1.19, 1.15, 1.03, 0.99 1983, 04, 30421, 1983.2877, -99.99, -99.99, 1.17, 1.17, 1.17, 1.17 1983, 05, 30451, 1983.3699, 1.26, 1.31, 1.14, 1.19, 1.26, 1.31 1983, 06, 30482, 1983.4548, 1.09, 1.18, 1.12, 1.20, 1.09, 1.18 1983, 07, 30512, 1983.5370, 1.24, 1.34, 1.12, 1.22, 1.24, 1.34 1983, 08, 30543, 1983.6219, 1.27, 1.36, 1.15, 1.24, 1.27, 1.36 1983, 09, 30574, 1983.7068, 1.28, 1.31, 1.21, 1.25, 1.28, 1.31 1983, 10, 30604, 1983.7890, 1.41, 1.39, 1.28, 1.26, 1.41, 1.39 1983, 11, 30635, 1983.8740, 1.22, 1.16, 1.32, 1.27, 1.22, 1.16 1983, 12, 30665, 1983.9562, 1.23, 1.15, 1.35, 1.27, 1.23, 1.15 1984, 01, 30696, 1984.0410, 1.40, 1.30, 1.37, 1.28, 1.40, 1.30 1984, 02, 30727, 1984.1257, -99.99, -99.99, 1.35, 1.28, 1.35, 1.28 1984, 03, 30756, 1984.2049, -99.99, -99.99, 1.32, 1.28, 1.32, 1.28 1984, 04, 30787, 1984.2896, -99.99, -99.99, 1.27, 1.27, 1.27, 1.27 1984, 05, 30817, 1984.3716, 1.24, 1.29, 1.22, 1.27, 1.24, 1.29 1984, 06, 30848, 1984.4563, 1.17, 1.26, 1.17, 1.26, 1.17, 1.26 1984, 07, 30878, 1984.5383, -99.99, -99.99, 1.15, 1.25, 1.15, 1.25 1984, 08, 30909, 1984.6230, 1.00, 1.09, 1.15, 1.24, 1.00, 1.09 1984, 09, 30940, 1984.7077, -99.99, -99.99, 1.19, 1.23, 1.19, 1.23 1984, 10, 30970, 1984.7896, 1.39, 1.37, 1.23, 1.21, 1.39, 1.37 1984, 11, 31001, 1984.8743, 1.38, 1.32, 1.24, 1.19, 1.38, 1.32 1984, 12, 31031, 1984.9563, 1.33, 1.25, 1.25, 1.17, 1.33, 1.25 1985, 01, 31062, 1985.0411, 1.34, 1.24, 1.24, 1.15, 1.34, 1.24 1985, 02, 31093, 1985.1260, 1.38, 1.31, 1.20, 1.12, 1.38, 1.31 1985, 03, 31121, 1985.2027, -99.99, -99.99, 1.14, 1.10, 1.14, 1.10 1985, 04, 31152, 1985.2877, 0.98, 0.98, 1.07, 1.07, 0.98, 0.98 1985, 05, 31182, 1985.3699, 0.89, 0.93, 1.00, 1.05, 0.89, 0.93 1985, 06, 31213, 1985.4548, 0.86, 0.95, 0.94, 1.03, 0.86, 0.95 1985, 07, 31243, 1985.5370, 0.90, 1.00, 0.90, 1.01, 0.90, 1.00 1985, 08, 31274, 1985.6219, 0.72, 0.81, 0.90, 0.99, 0.72, 0.81 1985, 09, 31305, 1985.7068, 0.96, 1.00, 0.94, 0.97, 0.96, 1.00 1985, 10, 31335, 1985.7890, 0.94, 0.92, 0.98, 0.96, 0.94, 0.92 1985, 11, 31366, 1985.8740, 0.99, 0.94, 1.00, 0.95, 0.99, 0.94 1985, 12, 31396, 1985.9562, 0.97, 0.90, 1.02, 0.94, 0.97, 0.90 1986, 01, 31427, 1986.0411, 0.96, 0.86, 1.04, 0.94, 0.96, 0.86 1986, 02, 31458, 1986.1260, 1.04, 0.97, 1.01, 0.94, 1.04, 0.97 1986, 03, 31486, 1986.2027, 1.02, 0.98, 0.98, 0.94, 1.02, 0.98 1986, 04, 31517, 1986.2877, 1.03, 1.03, 0.94, 0.94, 1.03, 1.03 1986, 05, 31547, 1986.3699, 0.89, 0.94, 0.90, 0.95, 0.89, 0.94 1986, 06, 31578, 1986.4548, 0.89, 0.98, 0.87, 0.96, 0.89, 0.98 1986, 07, 31608, 1986.5370, 0.85, 0.96, 0.86, 0.97, 0.85, 0.96 1986, 08, 31639, 1986.6219, 0.87, 0.96, 0.89, 0.98, 0.87, 0.96 1986, 09, 31670, 1986.7068, 0.97, 1.01, 0.95, 0.99, 0.97, 1.01 1986, 10, 31700, 1986.7890, 0.97, 0.95, 1.02, 1.00, 0.97, 0.95 1986, 11, 31731, 1986.8740, 1.06, 1.01, 1.06, 1.01, 1.06, 1.01 1986, 12, 31761, 1986.9562, 1.15, 1.07, 1.10, 1.03, 1.15, 1.07 1987, 01, 31792, 1987.0411, 1.21, 1.11, 1.14, 1.04, 1.21, 1.11 1987, 02, 31823, 1987.1260, 1.16, 1.08, 1.13, 1.05, 1.16, 1.08 1987, 03, 31851, 1987.2027, 1.00, 0.96, 1.11, 1.07, 1.00, 0.96 1987, 04, 31882, 1987.2877, 1.05, 1.05, 1.08, 1.08, 1.05, 1.05 1987, 05, 31912, 1987.3699, 1.03, 1.08, 1.05, 1.10, 1.03, 1.08 1987, 06, 31943, 1987.4548, 1.04, 1.13, 1.02, 1.11, 1.04, 1.13 1987, 07, 31973, 1987.5370, 1.01, 1.11, 1.02, 1.12, 1.01, 1.11 1987, 08, 32004, 1987.6219, 1.05, 1.14, 1.05, 1.14, 1.05, 1.14 1987, 09, 32035, 1987.7068, 1.12, 1.16, 1.11, 1.15, 1.12, 1.16 1987, 10, 32065, 1987.7890, 1.11, 1.09, 1.18, 1.16, 1.11, 1.09 1987, 11, 32096, 1987.8740, 1.20, 1.14, 1.21, 1.16, 1.20, 1.14 1987, 12, 32126, 1987.9562, -99.99, -99.99, 1.25, 1.17, 1.25, 1.17 1988, 01, 32157, 1988.0410, 1.49, 1.40, 1.27, 1.17, 1.49, 1.40 1988, 02, 32188, 1988.1257, 1.40, 1.32, 1.25, 1.17, 1.40, 1.32 1988, 03, 32217, 1988.2049, 1.37, 1.33, 1.20, 1.17, 1.37, 1.33 1988, 04, 32248, 1988.2896, 1.06, 1.06, 1.16, 1.16, 1.06, 1.06 1988, 05, 32278, 1988.3716, 1.20, 1.24, 1.10, 1.15, 1.20, 1.24 1988, 06, 32309, 1988.4563, 1.09, 1.18, 1.05, 1.13, 1.09, 1.18 1988, 07, 32339, 1988.5383, 1.02, 1.13, 1.02, 1.12, 1.02, 1.13 1988, 08, 32370, 1988.6230, 1.08, 1.17, 1.01, 1.10, 1.08, 1.17 1988, 09, 32401, 1988.7077, 1.02, 1.06, 1.04, 1.08, 1.02, 1.06 1988, 10, 32431, 1988.7896, -99.99, -99.99, 1.08, 1.06, 1.08, 1.06 1988, 11, 32462, 1988.8743, 1.06, 1.00, 1.09, 1.04, 1.06, 1.00 1988, 12, 32492, 1988.9563, 1.16, 1.08, 1.09, 1.02, 1.16, 1.08 1989, 01, 32523, 1989.0411, -99.99, -99.99, 1.09, 0.99, 1.09, 0.99 1989, 02, 32554, 1989.1260, 0.99, 0.92, 1.05, 0.97, 0.99, 0.92 1989, 03, 32582, 1989.2027, 0.97, 0.93, 1.00, 0.96, 0.97, 0.93 1989, 04, 32613, 1989.2877, 0.87, 0.87, 0.94, 0.94, 0.87, 0.87 1989, 05, 32643, 1989.3699, 0.73, 0.78, 0.88, 0.93, 0.73, 0.78 1989, 06, 32674, 1989.4548, 0.79, 0.88, 0.83, 0.92, 0.79, 0.88 1989, 07, 32704, 1989.5370, 0.74, 0.84, 0.81, 0.91, 0.74, 0.84 1989, 08, 32735, 1989.6219, 0.78, 0.87, 0.82, 0.90, 0.78, 0.87 1989, 09, 32766, 1989.7068, 0.85, 0.88, 0.87, 0.90, 0.85, 0.88 1989, 10, 32796, 1989.7890, 0.90, 0.88, 0.92, 0.90, 0.90, 0.88 1989, 11, 32827, 1989.8740, 0.85, 0.80, 0.96, 0.91, 0.85, 0.80 1989, 12, 32857, 1989.9562, 0.94, 0.86, 0.99, 0.92, 0.94, 0.86 1990, 01, 32888, 1990.0411, 0.91, 0.81, 1.02, 0.92, 0.91, 0.81 1990, 02, 32919, 1990.1260, 1.06, 0.99, 1.01, 0.94, 1.06, 0.99 1990, 03, 32947, 1990.2027, 1.02, 0.98, 0.99, 0.95, 1.02, 0.98 1990, 04, 32978, 1990.2877, 1.02, 1.02, 0.96, 0.96, 1.02, 1.02 1990, 05, 33008, 1990.3699, 0.91, 0.96, 0.93, 0.98, 0.91, 0.96 1990, 06, 33039, 1990.4548, 0.93, 1.01, 0.90, 0.99, 0.93, 1.01 1990, 07, 33069, 1990.5370, 0.95, 1.05, 0.90, 1.01, 0.95, 1.05 1990, 08, 33100, 1990.6219, 0.87, 0.96, 0.93, 1.02, 0.87, 0.96 1990, 09, 33131, 1990.7068, 1.04, 1.08, 1.00, 1.04, 1.04, 1.08 1990, 10, 33161, 1990.7890, 0.98, 0.96, 1.07, 1.05, 0.98, 0.96 1990, 11, 33192, 1990.8740, -99.99, -99.99, 1.12, 1.07, 1.12, 1.07 1990, 12, 33222, 1990.9562, 1.12, 1.04, 1.16, 1.09, 1.12, 1.04 1991, 01, 33253, 1991.0411, -99.99, -99.99, 1.20, 1.10, 1.20, 1.10 1991, 02, 33284, 1991.1260, 1.15, 1.08, 1.19, 1.11, 1.15, 1.08 1991, 03, 33312, 1991.2027, 1.27, 1.23, 1.16, 1.12, 1.27, 1.23 1991, 04, 33343, 1991.2877, 1.23, 1.23, 1.14, 1.13, 1.23, 1.23 1991, 05, 33373, 1991.3699, 1.20, 1.24, 1.10, 1.14, 1.20, 1.24 1991, 06, 33404, 1991.4548, 1.12, 1.21, 1.06, 1.15, 1.12, 1.21 1991, 07, 33434, 1991.5370, 1.14, 1.24, 1.05, 1.16, 1.14, 1.24 1991, 08, 33465, 1991.6219, 1.06, 1.15, 1.07, 1.16, 1.06, 1.15 1991, 09, 33496, 1991.7068, 1.12, 1.16, 1.13, 1.16, 1.12, 1.16 1991, 10, 33526, 1991.7890, 1.21, 1.19, 1.19, 1.17, 1.21, 1.19 1991, 11, 33557, 1991.8740, 1.02, 0.97, 1.22, 1.17, 1.02, 0.97 1991, 12, 33587, 1991.9562, 1.07, 0.99, 1.26, 1.18, 1.07, 0.99 1992, 01, 33618, 1992.0410, 1.19, 1.09, 1.28, 1.18, 1.19, 1.09 1992, 02, 33649, 1992.1257, 1.29, 1.22, 1.27, 1.19, 1.29, 1.22 1992, 03, 33678, 1992.2049, 1.28, 1.25, 1.24, 1.20, 1.28, 1.25 1992, 04, 33709, 1992.2896, 1.27, 1.27, 1.21, 1.21, 1.27, 1.27 1992, 05, 33739, 1992.3716, 1.15, 1.19, 1.17, 1.22, 1.15, 1.19 1992, 06, 33770, 1992.4563, 1.08, 1.16, 1.14, 1.23, 1.08, 1.16 1992, 07, 33800, 1992.5383, 1.10, 1.20, 1.14, 1.24, 1.10, 1.20 1992, 08, 33831, 1992.6230, 1.13, 1.22, 1.17, 1.26, 1.13, 1.22 1992, 09, 33862, 1992.7077, 1.23, 1.26, 1.24, 1.27, 1.23, 1.26 1992, 10, 33892, 1992.7896, 1.31, 1.29, 1.31, 1.29, 1.31, 1.29 1992, 11, 33923, 1992.8743, 1.35, 1.30, 1.36, 1.30, 1.35, 1.30 1992, 12, 33953, 1992.9563, 1.33, 1.25, 1.40, 1.32, 1.33, 1.25 1993, 01, 33984, 1993.0411, 1.37, 1.28, 1.43, 1.34, 1.37, 1.28 1993, 02, 34015, 1993.1260, 1.47, 1.39, 1.43, 1.35, 1.47, 1.39 1993, 03, 34043, 1993.2027, 1.44, 1.40, 1.40, 1.36, 1.44, 1.40 1993, 04, 34074, 1993.2877, 1.38, 1.38, 1.38, 1.37, 1.38, 1.38 1993, 05, 34104, 1993.3699, 1.41, 1.46, 1.34, 1.38, 1.41, 1.46 1993, 06, 34135, 1993.4548, 1.33, 1.42, 1.30, 1.39, 1.33, 1.42 1993, 07, 34165, 1993.5370, 1.36, 1.46, 1.29, 1.40, 1.36, 1.46 1993, 08, 34196, 1993.6219, 1.34, 1.43, 1.31, 1.40, 1.34, 1.43 1993, 09, 34227, 1993.7068, 1.41, 1.44, 1.36, 1.40, 1.41, 1.44 1993, 10, 34257, 1993.7890, 1.44, 1.42, 1.42, 1.40, 1.44, 1.42 1993, 11, 34288, 1993.8740, 1.47, 1.42, 1.44, 1.39, 1.47, 1.42 1993, 12, 34318, 1993.9562, 1.46, 1.38, 1.46, 1.38, 1.46, 1.38 1994, 01, 34349, 1994.0411, 1.54, 1.44, 1.47, 1.37, 1.54, 1.44 1994, 02, 34380, 1994.1260, 1.44, 1.36, 1.44, 1.36, 1.44, 1.36 1994, 03, 34408, 1994.2027, 1.41, 1.37, 1.39, 1.35, 1.41, 1.37 1994, 04, 34439, 1994.2877, 1.31, 1.31, 1.34, 1.34, 1.31, 1.31 1994, 05, 34469, 1994.3699, 1.33, 1.38, 1.28, 1.33, 1.33, 1.38 1994, 06, 34500, 1994.4548, 1.20, 1.29, 1.22, 1.31, 1.20, 1.29 1994, 07, 34530, 1994.5370, 1.16, 1.26, 1.20, 1.30, 1.16, 1.26 1994, 08, 34561, 1994.6219, 1.15, 1.24, 1.20, 1.29, 1.15, 1.24 1994, 09, 34592, 1994.7068, 1.19, 1.22, 1.24, 1.27, 1.19, 1.22 1994, 10, 34622, 1994.7890, 1.23, 1.21, 1.28, 1.26, 1.23, 1.21 1994, 11, 34653, 1994.8740, 1.22, 1.17, 1.31, 1.25, 1.22, 1.17 1994, 12, 34683, 1994.9562, 1.31, 1.24, 1.33, 1.25, 1.31, 1.24 1995, 01, 34714, 1995.0411, 1.32, 1.23, 1.34, 1.24, 1.32, 1.23 1995, 02, 34745, 1995.1260, 1.28, 1.20, 1.31, 1.23, 1.28, 1.20 1995, 03, 34773, 1995.2027, 1.21, 1.17, 1.27, 1.23, 1.21, 1.17 1995, 04, 34804, 1995.2877, 1.29, 1.29, 1.22, 1.22, 1.29, 1.29 1995, 05, 34834, 1995.3699, 1.17, 1.22, 1.17, 1.21, 1.17, 1.22 1995, 06, 34865, 1995.4548, 1.11, 1.20, 1.12, 1.21, 1.11, 1.20 1995, 07, 34895, 1995.5370, 1.12, 1.22, 1.10, 1.20, 1.12, 1.22 1995, 08, 34926, 1995.6219, 1.16, 1.25, 1.10, 1.19, 1.16, 1.25 1995, 09, 34957, 1995.7068, 1.19, 1.23, 1.15, 1.18, 1.19, 1.23 1995, 10, 34987, 1995.7890, 1.18, 1.16, 1.19, 1.17, 1.18, 1.16 1995, 11, 35018, 1995.8740, 1.28, 1.23, 1.21, 1.16, 1.28, 1.23 1995, 12, 35048, 1995.9562, 1.29, 1.21, 1.23, 1.15, 1.29, 1.21 1996, 01, 35079, 1996.0410, 1.31, 1.22, 1.23, 1.14, 1.31, 1.22 1996, 02, 35110, 1996.1257, 1.22, 1.14, 1.20, 1.12, 1.22, 1.14 1996, 03, 35139, 1996.2049, 1.19, 1.15, 1.15, 1.11, 1.19, 1.15 1996, 04, 35170, 1996.2896, 1.10, 1.10, 1.10, 1.10, 1.10, 1.10 1996, 05, 35200, 1996.3716, 0.96, 1.01, 1.04, 1.08, 0.96, 1.01 1996, 06, 35231, 1996.4563, 0.91, 1.00, 0.99, 1.07, 0.91, 1.00 1996, 07, 35261, 1996.5383, 0.93, 1.03, 0.96, 1.07, 0.93, 1.03 1996, 08, 35292, 1996.6230, 0.94, 1.03, 0.97, 1.06, 0.94, 1.03 1996, 09, 35323, 1996.7077, 0.92, 0.96, 1.02, 1.05, 0.92, 0.96 1996, 10, 35353, 1996.7896, 1.03, 1.01, 1.07, 1.05, 1.03, 1.01 1996, 11, 35384, 1996.8743, 1.10, 1.05, 1.11, 1.05, 1.10, 1.05 1996, 12, 35414, 1996.9563, 1.12, 1.04, 1.14, 1.06, 1.12, 1.04 1997, 01, 35445, 1997.0411, 1.13, 1.03, 1.16, 1.06, 1.13, 1.03 1997, 02, 35476, 1997.1260, 1.15, 1.07, 1.15, 1.07, 1.15, 1.07 1997, 03, 35504, 1997.2027, 1.10, 1.06, 1.12, 1.08, 1.10, 1.06 1997, 04, 35535, 1997.2877, 1.09, 1.09, 1.09, 1.09, 1.09, 1.09 1997, 05, 35565, 1997.3699, 1.05, 1.09, 1.06, 1.10, 1.05, 1.09 1997, 06, 35596, 1997.4548, 1.01, 1.10, 1.03, 1.12, 1.01, 1.10 1997, 07, 35626, 1997.5370, 1.02, 1.12, 1.03, 1.13, 1.02, 1.12 1997, 08, 35657, 1997.6219, 0.99, 1.08, 1.06, 1.14, 0.99, 1.08 1997, 09, 35688, 1997.7068, 1.14, 1.17, 1.12, 1.16, 1.14, 1.17 1997, 10, 35718, 1997.7890, 1.24, 1.22, 1.19, 1.17, 1.24, 1.22 1997, 11, 35749, 1997.8740, 1.27, 1.22, 1.24, 1.18, 1.27, 1.22 1997, 12, 35779, 1997.9562, 1.33, 1.25, 1.27, 1.19, 1.33, 1.25 1998, 01, 35810, 1998.0411, 1.37, 1.27, 1.30, 1.20, 1.37, 1.27 1998, 02, 35841, 1998.1260, 1.30, 1.23, 1.29, 1.21, 1.30, 1.23 1998, 03, 35869, 1998.2027, 1.26, 1.22, 1.25, 1.22, 1.26, 1.22 1998, 04, 35900, 1998.2877, 1.22, 1.22, 1.22, 1.22, 1.22, 1.22 1998, 05, 35930, 1998.3699, 1.25, 1.29, 1.18, 1.22, 1.25, 1.29 1998, 06, 35961, 1998.4548, 1.07, 1.16, 1.13, 1.22, 1.07, 1.16 1998, 07, 35991, 1998.5370, 1.14, 1.24, 1.12, 1.22, 1.14, 1.24 1998, 08, 36022, 1998.6219, 1.16, 1.25, 1.13, 1.22, 1.16, 1.25 1998, 09, 36053, 1998.7068, 1.16, 1.20, 1.18, 1.21, 1.16, 1.20 1998, 10, 36083, 1998.7890, 1.26, 1.24, 1.23, 1.21, 1.26, 1.24 1998, 11, 36114, 1998.8740, 1.28, 1.23, 1.25, 1.20, 1.28, 1.23 1998, 12, 36144, 1998.9562, 1.30, 1.22, 1.27, 1.20, 1.30, 1.22 1999, 01, 36175, 1999.0411, 1.22, 1.12, 1.29, 1.19, 1.22, 1.12 1999, 02, 36206, 1999.1260, 1.17, 1.09, 1.26, 1.18, 1.17, 1.09 1999, 03, 36234, 1999.2027, 1.22, 1.18, 1.21, 1.17, 1.22, 1.18 1999, 04, 36265, 1999.2877, 1.14, 1.14, 1.17, 1.16, 1.14, 1.14 1999, 05, 36295, 1999.3699, 1.11, 1.16, 1.11, 1.16, 1.11, 1.16 1999, 06, 36326, 1999.4548, 1.03, 1.12, 1.06, 1.15, 1.03, 1.12 1999, 07, 36356, 1999.5370, 0.99, 1.09, 1.04, 1.14, 0.99, 1.09 1999, 08, 36387, 1999.6219, 1.00, 1.09, 1.05, 1.14, 1.00, 1.09 1999, 09, 36418, 1999.7068, 1.10, 1.13, 1.09, 1.13, 1.10, 1.13 1999, 10, 36448, 1999.7890, 1.16, 1.14, 1.14, 1.12, 1.16, 1.14 1999, 11, 36479, 1999.8740, 1.15, 1.09, 1.17, 1.12, 1.15, 1.09 1999, 12, 36509, 1999.9562, 1.24, 1.16, 1.19, 1.11, 1.24, 1.16 2000, 01, 36540, 2000.0410, 1.27, 1.18, 1.20, 1.10, 1.27, 1.18 2000, 02, 36571, 2000.1257, -99.99, -99.99, 1.17, 1.10, 1.17, 1.10 2000, 03, 36600, 2000.2049, -99.99, -99.99, 1.13, 1.09, 1.13, 1.09 2000, 04, 36631, 2000.2896, 1.10, 1.11, 1.08, 1.08, 1.10, 1.11 2000, 05, 36661, 2000.3716, 0.99, 1.04, 1.03, 1.08, 0.99, 1.04 2000, 06, 36692, 2000.4563, 0.92, 1.01, 0.99, 1.07, 0.92, 1.01 2000, 07, 36722, 2000.5383, 0.91, 1.01, 0.97, 1.07, 0.91, 1.01 2000, 08, 36753, 2000.6230, 0.95, 1.04, 0.98, 1.07, 0.95, 1.04 2000, 09, 36784, 2000.7077, 0.99, 1.03, 1.03, 1.06, 0.99, 1.03 2000, 10, 36814, 2000.7896, 1.06, 1.04, 1.08, 1.06, 1.06, 1.04 2000, 11, 36845, 2000.8743, 1.12, 1.07, 1.11, 1.06, 1.12, 1.07 2000, 12, 36875, 2000.9563, 1.17, 1.09, 1.14, 1.06, 1.17, 1.09 2001, 01, 36906, 2001.0411, 1.29, 1.19, 1.16, 1.06, 1.29, 1.19 2001, 02, 36937, 2001.1260, 1.09, 1.02, 1.14, 1.06, 1.09, 1.02 2001, 03, 36965, 2001.2027, 1.11, 1.07, 1.11, 1.07, 1.11, 1.07 2001, 04, 36996, 2001.2877, 1.04, 1.04, 1.07, 1.07, 1.04, 1.04 2001, 05, 37026, 2001.3699, 1.01, 1.06, 1.02, 1.07, 1.01, 1.06 2001, 06, 37057, 2001.4548, 0.90, 0.98, 0.99, 1.07, 0.90, 0.98 2001, 07, 37087, 2001.5370, 0.96, 1.06, 0.97, 1.07, 0.96, 1.06 2001, 08, 37118, 2001.6219, 0.98, 1.07, 0.99, 1.08, 0.98, 1.07 2001, 09, 37149, 2001.7068, 1.04, 1.08, 1.04, 1.08, 1.04, 1.08 2001, 10, 37179, 2001.7890, 1.16, 1.14, 1.10, 1.08, 1.16, 1.14 2001, 11, 37210, 2001.8740, 1.20, 1.14, 1.14, 1.09, 1.20, 1.14 2001, 12, 37240, 2001.9562, 1.24, 1.16, 1.17, 1.09, 1.24, 1.16 2002, 01, 37271, 2002.0411, 1.23, 1.13, 1.19, 1.09, 1.23, 1.13 2002, 02, 37302, 2002.1260, 1.11, 1.03, 1.17, 1.09, 1.11, 1.03 2002, 03, 37330, 2002.2027, 1.12, 1.08, 1.13, 1.09, 1.12, 1.08 2002, 04, 37361, 2002.2877, 1.04, 1.04, 1.09, 1.09, 1.04, 1.04 2002, 05, 37391, 2002.3699, 1.07, 1.12, 1.05, 1.10, 1.07, 1.12 2002, 06, 37422, 2002.4548, 1.06, 1.15, 1.01, 1.10, 1.06, 1.15 2002, 07, 37452, 2002.5370, 1.02, 1.12, 1.00, 1.10, 1.02, 1.12 2002, 08, 37483, 2002.6219, 0.94, 1.03, 1.01, 1.10, 0.94, 1.03 2002, 09, 37514, 2002.7068, 1.09, 1.12, 1.07, 1.11, 1.09, 1.12 2002, 10, 37544, 2002.7890, 1.07, 1.05, 1.13, 1.11, 1.07, 1.05 2002, 11, 37575, 2002.8740, 1.14, 1.08, 1.17, 1.12, 1.14, 1.08 2002, 12, 37605, 2002.9562, 1.21, 1.13, 1.20, 1.13, 1.21, 1.13 2003, 01, 37636, 2003.0411, 1.19, 1.09, 1.23, 1.13, 1.19, 1.09 2003, 02, 37667, 2003.1260, 1.11, 1.04, 1.22, 1.14, 1.11, 1.04 2003, 03, 37695, 2003.2027, 1.14, 1.10, 1.19, 1.15, 1.14, 1.10 2003, 04, 37726, 2003.2877, 1.16, 1.16, 1.16, 1.15, 1.16, 1.16 2003, 05, 37756, 2003.3699, 1.23, 1.28, 1.12, 1.16, 1.23, 1.28 2003, 06, 37787, 2003.4548, 1.25, 1.33, 1.08, 1.17, 1.25, 1.33 2003, 07, 37817, 2003.5370, 1.08, 1.19, 1.07, 1.17, 1.08, 1.19 2003, 08, 37848, 2003.6219, 1.09, 1.18, 1.08, 1.17, 1.09, 1.18 2003, 09, 37879, 2003.7068, 1.16, 1.19, 1.14, 1.17, 1.16, 1.19 2003, 10, 37909, 2003.7890, 1.17, 1.15, 1.19, 1.18, 1.17, 1.15 2003, 11, 37940, 2003.8740, 1.22, 1.17, 1.23, 1.17, 1.22, 1.17 2003, 12, 37970, 2003.9562, 1.30, 1.22, 1.25, 1.17, 1.30, 1.22 2004, 01, 38001, 2004.0410, 1.24, 1.14, 1.27, 1.17, 1.24, 1.14 2004, 02, 38032, 2004.1257, 1.30, 1.22, 1.25, 1.17, 1.30, 1.22 2004, 03, 38061, 2004.2049, 1.18, 1.14, 1.21, 1.17, 1.18, 1.14 2004, 04, 38092, 2004.2896, 1.07, 1.07, 1.16, 1.16, 1.07, 1.07 2004, 05, 38122, 2004.3716, 1.13, 1.18, 1.12, 1.16, 1.13, 1.18 2004, 06, 38153, 2004.4563, 1.01, 1.10, 1.07, 1.16, 1.01, 1.10 2004, 07, 38183, 2004.5383, 1.05, 1.15, 1.06, 1.16, 1.05, 1.15 2004, 08, 38214, 2004.6230, 1.04, 1.13, 1.07, 1.16, 1.04, 1.13 2004, 09, 38245, 2004.7077, 1.15, 1.19, 1.12, 1.16, 1.15, 1.19 2004, 10, 38275, 2004.7896, 1.16, 1.14, 1.18, 1.16, 1.16, 1.14 2004, 11, 38306, 2004.8743, 1.34, 1.29, 1.21, 1.15, 1.34, 1.29 2004, 12, 38336, 2004.9563, 1.25, 1.17, 1.23, 1.15, 1.25, 1.17 2005, 01, 38367, 2005.0411, 1.05, 0.95, 1.25, 1.15, 1.05, 0.95 2005, 02, 38398, 2005.1260, 1.19, 1.12, 1.22, 1.15, 1.19, 1.12 2005, 03, 38426, 2005.2027, 1.27, 1.23, 1.19, 1.15, 1.27, 1.23 2005, 04, 38457, 2005.2877, 1.19, 1.19, 1.14, 1.14, 1.19, 1.19 2005, 05, 38487, 2005.3699, 1.00, 1.05, 1.09, 1.14, 1.00, 1.05 2005, 06, 38518, 2005.4548, 1.06, 1.15, 1.05, 1.14, 1.06, 1.15 2005, 07, 38548, 2005.5370, -99.99, -99.99, 1.03, 1.13, 1.03, 1.13 2005, 08, 38579, 2005.6219, 1.04, 1.13, 1.04, 1.13, 1.04, 1.13 2005, 09, 38610, 2005.7068, 1.12, 1.16, 1.09, 1.13, 1.12, 1.16 2005, 10, 38640, 2005.7890, 1.14, 1.11, 1.14, 1.12, 1.14, 1.11 2005, 11, 38671, 2005.8740, 1.19, 1.13, 1.17, 1.12, 1.19, 1.13 2005, 12, 38701, 2005.9562, 1.15, 1.07, 1.20, 1.12, 1.15, 1.07 2006, 01, 38732, 2006.0411, 1.26, 1.16, 1.21, 1.11, 1.26, 1.16 2006, 02, 38763, 2006.1260, 1.20, 1.12, 1.18, 1.11, 1.20, 1.12 2006, 03, 38791, 2006.2027, 1.18, 1.14, 1.14, 1.10, 1.18, 1.14 2006, 04, 38822, 2006.2877, 1.08, 1.08, 1.10, 1.10, 1.08, 1.08 2006, 05, 38852, 2006.3699, 1.09, 1.14, 1.05, 1.09, 1.09, 1.14 2006, 06, 38883, 2006.4548, 0.98, 1.07, 1.00, 1.09, 0.98, 1.07 2006, 07, 38913, 2006.5370, 0.95, 1.05, 0.98, 1.08, 0.95, 1.05 2006, 08, 38944, 2006.6219, 1.00, 1.09, 0.99, 1.08, 1.00, 1.09 2006, 09, 38975, 2006.7068, 1.04, 1.08, 1.04, 1.07, 1.04, 1.08 2006, 10, 39005, 2006.7890, 1.05, 1.03, 1.09, 1.07, 1.05, 1.03 2006, 11, 39036, 2006.8740, 1.17, 1.12, 1.12, 1.07, 1.17, 1.12 2006, 12, 39066, 2006.9562, 1.06, 0.98, 1.14, 1.06, 1.06, 0.98 2007, 01, 39097, 2007.0411, 1.17, 1.07, 1.16, 1.06, 1.17, 1.07 2007, 02, 39128, 2007.1260, 1.13, 1.05, 1.14, 1.06, 1.13, 1.05 2007, 03, 39156, 2007.2027, 1.04, 1.00, 1.10, 1.06, 1.04, 1.00 2007, 04, 39187, 2007.2877, 1.00, 1.00, 1.06, 1.06, 1.00, 1.00 2007, 05, 39217, 2007.3699, 1.02, 1.07, 1.02, 1.06, 1.02, 1.07 2007, 06, 39248, 2007.4548, 0.94, 1.03, 0.98, 1.06, 0.94, 1.03 2007, 07, 39278, 2007.5370, 0.99, 1.09, 0.96, 1.07, 0.99, 1.09 2007, 08, 39309, 2007.6219, 0.98, 1.07, 0.98, 1.07, 0.98, 1.07 2007, 09, 39340, 2007.7068, 1.11, 1.15, 1.03, 1.07, 1.11, 1.15 2007, 10, 39370, 2007.7890, 1.11, 1.09, 1.09, 1.07, 1.11, 1.09 2007, 11, 39401, 2007.8740, 1.18, 1.13, 1.12, 1.06, 1.18, 1.13 2007, 12, 39431, 2007.9562, 1.18, 1.10, 1.14, 1.06, 1.18, 1.10 2008, 01, 39462, 2008.0410, 1.12, 1.03, 1.15, 1.06, 1.12, 1.03 2008, 02, 39493, 2008.1257, 1.13, 1.06, 1.13, 1.05, 1.13, 1.06 2008, 03, 39522, 2008.2049, 1.09, 1.05, 1.09, 1.05, 1.09, 1.05 2008, 04, 39553, 2008.2896, 1.00, 1.00, 1.04, 1.04, 1.00, 1.00 2008, 05, 39583, 2008.3716, 0.98, 1.03, 0.99, 1.03, 0.98, 1.03 2008, 06, 39614, 2008.4563, 0.93, 1.01, 0.94, 1.03, 0.93, 1.01 2008, 07, 39644, 2008.5383, 0.99, 1.09, 0.92, 1.02, 0.99, 1.09 2008, 08, 39675, 2008.6230, 0.83, 0.92, 0.92, 1.01, 0.83, 0.92 2008, 09, 39706, 2008.7077, 0.92, 0.96, 0.97, 1.00, 0.92, 0.96 2008, 10, 39736, 2008.7896, 1.05, 1.03, 1.01, 0.99, 1.05, 1.03 2008, 11, 39767, 2008.8743, 1.07, 1.02, 1.04, 0.98, 1.07, 1.02 2008, 12, 39797, 2008.9563, 1.00, 0.92, 1.05, 0.97, 1.00, 0.92 2009, 01, 39828, 2009.0411, 1.00, 0.90, 1.06, 0.97, 1.00, 0.90 2009, 02, 39859, 2009.1260, 1.12, 1.04, 1.03, 0.96, 1.12, 1.04 2009, 03, 39887, 2009.2027, 1.01, 0.97, 0.99, 0.95, 1.01, 0.97 2009, 04, 39918, 2009.2877, 0.95, 0.95, 0.94, 0.94, 0.95, 0.95 2009, 05, 39948, 2009.3699, 0.81, 0.86, 0.88, 0.93, 0.81, 0.86 2009, 06, 39979, 2009.4548, 0.79, 0.87, 0.83, 0.92, 0.79, 0.87 2009, 07, 40009, 2009.5370, 0.82, 0.92, 0.81, 0.91, 0.82, 0.92 2009, 08, 40040, 2009.6219, 0.76, 0.85, 0.82, 0.91, 0.76, 0.85 2009, 09, 40071, 2009.7068, 0.84, 0.88, 0.86, 0.90, 0.84, 0.88 2009, 10, 40101, 2009.7890, 0.92, 0.90, 0.91, 0.89, 0.92, 0.90 2009, 11, 40132, 2009.8740, 0.98, 0.93, 0.94, 0.89, 0.98, 0.93 2009, 12, 40162, 2009.9562, 0.98, 0.90, 0.96, 0.88, 0.98, 0.90 2010, 01, 40193, 2010.0411, 0.98, 0.88, 0.98, 0.88, 0.98, 0.88 2010, 02, 40224, 2010.1260, 0.96, 0.89, -99.99, -99.99, 0.96, 0.89 2010, 03, 40252, 2010.2027, -99.99, -99.99, -99.99, -99.99, -99.99, -99.99 2010, 04, 40283, 2010.2877, -99.99, -99.99, -99.99, -99.99, -99.99, -99.99 2010, 05, 40313, 2010.3699, -99.99, -99.99, -99.99, -99.99, -99.99, -99.99 2010, 06, 40344, 2010.4548, -99.99, -99.99, -99.99, -99.99, -99.99, -99.99 2010, 07, 40374, 2010.5370, -99.99, -99.99, -99.99, -99.99, -99.99, -99.99 2010, 08, 40405, 2010.6219, -99.99, -99.99, -99.99, -99.99, -99.99, -99.99 2010, 09, 40436, 2010.7068, -99.99, -99.99, -99.99, -99.99, -99.99, -99.99 2010, 10, 40466, 2010.7890, -99.99, -99.99, -99.99, -99.99, -99.99, -99.99 2010, 11, 40497, 2010.8740, -99.99, -99.99, -99.99, -99.99, -99.99, -99.99 2010, 12, 40527, 2010.9562, -99.99, -99.99, -99.99, -99.99, -99.99, -99.99