YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 1.86938e+01 1.78567e-01 130 2000 3 2.02877e+01 1.05940e+00 492 2000 4 2.14291e+01 1.34654e+00 394 2000 5 2.56939e+01 2.05409e+00 649 2000 6 2.75706e+01 1.39230e+00 280 2000 7 2.83892e+01 9.26423e-01 345 2000 8 2.93791e+01 8.06966e-01 242 2000 9 2.61199e+01 2.75760e+00 193 2000 10 2.30577e+01 1.45496e+00 477 2000 11 2.22805e+01 2.93967e+00 248 2000 12 nan nan 0 2001 1 1.15508e+01 6.56620e-02 37 2001 2 1.73706e+01 2.16873e+00 220 2001 3 1.58809e+01 2.18452e+00 256 2001 4 2.14150e+01 1.96368e+00 623 2001 5 2.52081e+01 1.25252e+00 601 2001 6 2.72642e+01 9.41899e-01 172 2001 7 2.88300e+01 1.91403e+00 203 2001 8 2.89194e+01 1.42638e+00 515 2001 9 2.67117e+01 2.08444e+00 437 2001 10 2.19972e+01 2.02177e+00 214 2001 11 1.95574e+01 1.05727e+00 634 2001 12 1.95789e+01 1.84618e+00 326 2002 1 1.80431e+01 5.62330e-02 8 2002 2 1.51263e+01 3.04880e+00 307 2002 3 1.93213e+01 2.49696e+00 302 2002 4 2.47419e+01 2.50593e+00 447 2002 5 2.70286e+01 1.85675e+00 334 2002 6 2.85166e+01 6.73511e-01 394 2002 7 2.93024e+01 1.70854e+00 1606 2002 8 2.88554e+01 1.62933e+00 1775 2002 9 2.83859e+01 1.37546e+00 1589 2002 10 2.67247e+01 2.20783e+00 2176 2002 11 1.98999e+01 2.36332e+00 891 2002 12 1.47263e+01 1.09250e+00 283 2003 1 1.14159e+01 1.48194e+00 653 2003 2 1.44172e+01 1.45263e+00 834 2003 3 2.05874e+01 1.17454e+00 788 2003 4 2.13887e+01 2.37844e+00 2042 2003 5 2.71031e+01 1.41926e+00 2178 2003 6 2.85778e+01 1.88222e+00 1786 2003 7 2.94931e+01 1.79496e+00 1038 2003 8 2.85452e+01 1.39629e+00 1689 2003 9 2.74782e+01 1.11384e+00 1548 2003 10 2.36000e+01 1.37407e+00 1957 2003 11 2.11681e+01 2.19554e+00 2039 2003 12 1.33466e+01 7.66891e-01 204 2004 1 1.30310e+01 1.35336e+00 815 2004 2 1.28249e+01 2.02952e+00 376 2004 3 1.86078e+01 2.09170e+00 2333 2004 4 2.02077e+01 2.31485e+00 1659 2004 5 2.66027e+01 1.93416e+00 3057 2004 6 2.96424e+01 1.19705e+00 1952 2004 7 2.99512e+01 1.72750e+00 1932 2004 8 2.96429e+01 1.79797e+00 2003 2004 9 2.69362e+01 2.10647e+00 1705 2004 10 2.45864e+01 2.10212e+00 2114 2004 11 2.14580e+01 2.97884e+00 1443 2004 12 1.57840e+01 2.07803e+00 532 2005 1 1.44427e+01 2.60272e+00 459 2005 2 1.44416e+01 1.57647e+00 789 2005 3 1.63344e+01 1.86987e+00 1186 2005 4 2.00918e+01 1.49122e+00 2040 2005 5 2.50587e+01 2.47229e+00 2206 2005 6 2.84673e+01 1.50834e+00 1780 2005 7 3.04447e+01 1.80636e+00 2133 2005 8 2.99306e+01 2.26728e+00 1693 2005 9 2.80313e+01 1.35585e+00 2399 2005 10 2.57956e+01 1.63403e+00 1526 2005 11 1.99389e+01 2.12310e+00 1014 2005 12 1.39355e+01 1.49489e+00 642 2006 1 1.48981e+01 2.45434e+00 953 2006 2 1.37954e+01 1.50802e+00 716 2006 3 1.83039e+01 2.17643e+00 1890 2006 4 2.29793e+01 2.10026e+00 2445 2006 5 2.52002e+01 2.36346e+00 2294 2006 6 2.82688e+01 1.57878e+00 2402 2006 7 3.01646e+01 1.51772e+00 2556 2006 8 3.00679e+01 1.53436e+00 2169 2006 9 2.80052e+01 1.80580e+00 2138 2006 10 2.39339e+01 2.14391e+00 2160 2006 11 1.85098e+01 1.86096e+00 994 2006 12 1.58237e+01 1.85010e+00 573 2007 1 1.41405e+01 2.62866e+00 538 2007 2 1.36646e+01 1.92563e+00 947 2007 3 1.90643e+01 2.49520e+00 2066 2007 4 2.12088e+01 2.31935e+00 1447 2007 5 2.43819e+01 1.42507e+00 2248 2007 6 2.76414e+01 1.88496e+00 1797 2007 7 3.03360e+01 1.86986e+00 1472 2007 8 3.06817e+01 1.48748e+00 2261 2007 9 2.79732e+01 1.67665e+00 1703 2007 10 2.58549e+01 1.34912e+00 1213 2007 11 1.81101e+01 1.67096e+00 1688 2007 12 1.72428e+01 2.29688e+00 784 2008 1 1.29920e+01 1.63311e+00 308 2008 2 1.62728e+01 1.60129e+00 862 2008 3 1.77707e+01 1.97373e+00 1354 2008 4 2.20795e+01 2.08722e+00 1792 2008 5 2.48640e+01 2.19856e+00 2035 2008 6 2.89568e+01 1.40144e+00 2121 2008 7 2.95427e+01 1.71954e+00 1797 2008 8 2.89011e+01 1.42589e+00 1239 2008 9 2.72499e+01 2.47223e+00 1915 2008 10 2.35551e+01 1.80870e+00 2199 2008 11 1.66962e+01 2.55883e+00 1443 2008 12 1.57582e+01 2.07538e+00 1109 2009 1 1.47564e+01 2.11196e+00 959 2009 2 1.40590e+01 1.66965e+00 1078 2009 3 1.81262e+01 2.50714e+00 1538 2009 4 2.20506e+01 2.05653e+00 1784 2009 5 2.63938e+01 1.49280e+00 1677 2009 6 2.93988e+01 1.44407e+00 2391 2009 7 2.88821e+01 1.53630e+00 1859 2009 8 2.93370e+01 1.68921e+00 1895 2009 9 2.83045e+01 1.05480e+00 1748 2009 10 2.66308e+01 2.87327e+00 1991 2009 11 1.85716e+01 1.46484e+00 1043 2009 12 1.30032e+01 2.55321e+00 282 2010 1 1.29497e+01 2.13766e+00 435 2010 2 1.12665e+01 1.73186e+00 1026 2010 3 1.55690e+01 2.39712e+00 1512 2010 4 2.16154e+01 1.51835e+00 1845 2010 5 2.69888e+01 2.31643e+00 3007 2010 6 3.06151e+01 1.35493e+00 2609 2010 7 3.01680e+01 1.84247e+00 2571 2010 8 2.94264e+01 1.79273e+00 1105 2010 9 2.87797e+01 1.70104e+00 2226 2010 10 2.41244e+01 1.56894e+00 2896 2010 11 1.86141e+01 1.57996e+00 1628 2010 12 1.30968e+01 2.31125e+00 611 2011 1 1.14415e+01 1.36962e+00 852 2011 2 1.50591e+01 2.97983e+00 1020 2011 3 1.96654e+01 1.92205e+00 1759 2011 4 2.38504e+01 2.14210e+00 2670 2011 5 2.59735e+01 2.59264e+00 2935 2011 6 2.96473e+01 1.69834e+00 2273 2011 7 2.94633e+01 1.42722e+00 1864 2011 8 3.06783e+01 1.54593e+00 2470 2011 9 2.79610e+01 1.46540e+00 1983 2011 10 2.20509e+01 2.22040e+00 1830 2011 11 1.78068e+01 1.64473e+00 1673 2011 12 1.55181e+01 1.64079e+00 885 2012 1 1.46627e+01 2.10708e+00 1375 2012 2 1.68320e+01 1.73966e+00 535 2012 3 2.18749e+01 2.72294e+00 2332 2012 4 2.30020e+01 1.88828e+00 2220 2012 5 2.71292e+01 1.12608e+00 2673 2012 6 2.75752e+01 1.50762e+00 1721 2012 7 2.95313e+01 1.61861e+00 1752 2012 8 2.88437e+01 1.68409e+00 1768 2012 9 2.80268e+01 1.74603e+00 1840 2012 10 2.43745e+01 1.75660e+00 1759 2012 11 1.74496e+01 1.26908e+00 1522 2012 12 1.64677e+01 2.40490e+00 994 2013 1 1.58854e+01 1.95223e+00 752 2013 2 1.47254e+01 2.09490e+00 1091 2013 3 1.49862e+01 1.84016e+00 1547 2013 4 2.14984e+01 1.97304e+00 1741 2013 5 2.54885e+01 2.70793e+00 2243 2013 6 2.84264e+01 1.49944e+00 1878 2013 7 2.78946e+01 2.34500e+00 1013 2013 8 3.00838e+01 1.97059e+00 1898 2013 9 2.90924e+01 2.02266e+00 2401 2013 10 2.45249e+01 2.55456e+00 1838 2013 11 1.97058e+01 2.64022e+00 753 2013 12 1.68225e+01 2.20767e+00 792 2014 1 1.19023e+01 1.62976e+00 798 2014 2 1.47590e+01 1.68331e+00 900 2014 3 1.71654e+01 1.82570e+00 1328 2014 4 2.16535e+01 2.29118e+00 1800 2014 5 2.54834e+01 1.89289e+00 2117 2014 6 2.87396e+01 2.10000e+00 1876 2014 7 2.97689e+01 1.38205e+00 1825 2014 8 2.98698e+01 1.48457e+00 1865 2014 9 2.82905e+01 2.13526e+00 828 2014 10 2.45242e+01 2.28436e+00 2274 2014 11 1.63804e+01 2.45413e+00 898 2014 12 1.54011e+01 1.76157e+00 1050 2015 1 1.37388e+01 1.58404e+00 1032 2015 2 1.28184e+01 1.51096e+00 1251 2015 3 1.95401e+01 2.68524e+00 1169 2015 4 2.36654e+01 1.67888e+00 974 2015 5 2.69145e+01 2.33181e+00 2754 2015 6 3.00869e+01 1.61859e+00 2221 2015 7 2.97908e+01 1.63668e+00 1438 2015 8 3.03532e+01 1.82221e+00 2112 2015 9 2.77714e+01 2.57121e+00 974 2015 10 2.37152e+01 1.75673e+00 1680 2015 11 2.28866e+01 3.65156e+00 1504 2015 12 1.79608e+01 1.95380e+00 780 2016 1 1.28766e+01 1.22914e+00 737 2016 2 1.37457e+01 1.96382e+00 1137 2016 3 1.86128e+01 2.13160e+00 1028 2016 4 2.21053e+01 2.36420e+00 1515 2016 5 2.61284e+01 2.14337e+00 2515 2016 6 2.96651e+01 1.59954e+00 2144 2016 7 3.14231e+01 1.37812e+00 2586 2016 8 3.05365e+01 1.17798e+00 2090 2016 9 2.91567e+01 1.23116e+00 2050 2016 10 2.45377e+01 1.83467e+00 1676 2016 11 1.99618e+01 2.66767e+00 1655 2016 12 1.77638e+01 1.59674e+00 870 2017 1 1.58712e+01 2.30915e+00 646 2017 2 1.81458e+01 1.93601e+00 1494 2017 3 1.90969e+01 2.79889e+00 1782 2017 4 2.30700e+01 2.11499e+00 1966 2017 5 2.49603e+01 2.21029e+00 1404 2017 6 2.86855e+01 2.15204e+00 1537 2017 7 3.05805e+01 2.02143e+00 1055 2017 8 3.00590e+01 1.85665e+00 1891 2017 9 2.80659e+01 1.69597e+00 1918 2017 10 2.47630e+01 3.07410e+00 2329 2017 11 1.92880e+01 1.70380e+00 1848 2017 12 1.70671e+01 2.97814e+00 680 2018 1 1.16490e+01 1.90715e+00 628 2018 2 1.94656e+01 3.56496e+00 959 2018 3 1.76892e+01 2.31635e+00 1732 2018 4 2.11236e+01 1.67336e+00 1718 2018 5 2.59047e+01 2.17435e+00 1507 2018 6 2.94864e+01 1.90683e+00 2008 2018 7 2.97822e+01 1.94019e+00 1335 2018 8 3.02530e+01 1.55809e+00 1203 2018 9 3.01577e+01 1.58940e+00 2691 2018 10 2.64060e+01 2.70554e+00 1981 2018 11 1.89327e+01 3.14205e+00 581 2018 12 1.54446e+01 2.14271e+00 866 2019 1 1.40428e+01 2.59531e+00 897 2019 2 1.71564e+01 2.46066e+00 842 2019 3 1.79337e+01 2.02185e+00 1293 2019 4 2.20434e+01 1.97248e+00 1654 2019 5 2.77723e+01 2.20841e+00 2873 2019 6 2.92970e+01 1.26556e+00 1898 2019 7 2.97890e+01 1.44008e+00 1947 2019 8 3.04136e+01 1.10266e+00 2060 2019 9 2.91430e+01 1.57935e+00 2979 2019 10 2.60788e+01 2.05778e+00 2134 2019 11 1.84836e+01 2.27046e+00 1758 2019 12 1.60529e+01 1.84790e+00 1065 2020 1 1.50941e+01 2.17716e+00 1582 2020 2 1.47464e+01 1.52938e+00 1169 2020 3 2.25630e+01 3.73449e+00 2431 2020 4 2.32532e+01 1.74409e+00 1851 2020 5 2.52113e+01 1.99026e+00 2677 2020 6 2.98297e+01 1.63109e+00 2005 2020 7 3.03280e+01 1.40221e+00 1853 2020 8 3.12552e+01 1.42752e+00 1438 2020 9 2.85818e+01 1.87847e+00 1249 2020 10 2.53118e+01 1.68007e+00 2438 2020 11 2.09575e+01 2.20598e+00 2352 2020 12 1.40349e+01 1.48257e+00 1282 2021 1 1.38545e+01 2.14096e+00 1592 2021 2 1.66547e+01 2.76448e+00 1440 2021 3 1.90016e+01 2.44460e+00 1937 2021 4 2.16040e+01 2.15576e+00 2084 2021 5 2.55390e+01 1.81142e+00 2283 2021 6 2.81032e+01 1.70703e+00 1234 2021 7 2.95723e+01 1.35939e+00 1354 2021 8 3.00623e+01 1.47178e+00 1655 2021 9 2.83437e+01 1.23642e+00 1951 2021 10 2.55754e+01 2.07978e+00 1835 2021 11 1.77226e+01 1.91025e+00 2023 2021 12 1.78195e+01 2.07106e+00 2156 2022 1 1.47168e+01 2.98699e+00 1945 2022 2 1.66386e+01 3.46644e+00 2019 2022 3 1.95651e+01 1.45967e+00 2235 2022 4 2.38055e+01 1.98882e+00 1640 2022 5 2.69302e+01 1.73220e+00 2453 2022 6 2.98951e+01 1.34907e+00 2159 2022 7 3.03298e+01 1.52964e+00 1853 2022 8 3.07991e+01 1.54745e+00 1900 2022 9 2.83017e+01 1.95143e+00 1783 2022 10 2.27210e+01 2.43756e+00 2832 2022 11 2.15434e+01 2.54874e+00 1335 2022 12 1.80344e+01 3.18920e+00 2743 2023 1 1.48851e+01 1.92346e+00 1979 2023 2 1.72235e+01 2.41614e+00 1553 2023 3 2.03645e+01 2.77493e+00 2322 2023 4 2.33465e+01 1.65935e+00 1762 2023 5 2.54025e+01 2.33593e+00 2176 2023 6 2.80680e+01 1.93409e+00 1936 2023 7 3.06671e+01 1.55524e+00 2478 2023 8 3.12267e+01 1.21939e+00 2638 2023 9 2.88299e+01 1.79683e+00 1952 2023 10 2.30672e+01 1.74896e+00 2325 2023 11 1.99157e+01 2.19162e+00 1590 2023 12 1.37294e+01 1.54147e+00 1359 2024 1 1.32145e+01 2.29858e+00 1034 2024 2 1.55918e+01 1.39747e+00 1748 2024 3 2.02159e+01 1.24160e+00 1433 2024 4 2.22477e+01 9.20521e-01 190