YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 1.82020e+01 2.82798e-01 61 2000 3 2.00322e+01 1.10089e+00 489 2000 4 2.14841e+01 1.25419e+00 446 2000 5 2.54963e+01 2.27197e+00 424 2000 6 2.71043e+01 1.00186e+00 274 2000 7 2.85858e+01 1.40913e+00 447 2000 8 2.95362e+01 6.80340e-01 180 2000 9 2.80165e+01 8.46982e-01 168 2000 10 2.31319e+01 2.15526e+00 517 2000 11 2.27334e+01 1.36335e+00 265 2000 12 nan nan 0 2001 1 1.19532e+01 6.41904e-02 34 2001 2 1.58664e+01 1.53566e+00 248 2001 3 1.49545e+01 5.16092e-01 266 2001 4 2.17003e+01 2.19889e+00 548 2001 5 2.57400e+01 1.33967e+00 520 2001 6 2.78578e+01 7.92676e-01 136 2001 7 2.85209e+01 2.64483e-01 127 2001 8 2.93499e+01 1.24822e+00 539 2001 9 2.66272e+01 1.87983e+00 425 2001 10 2.14481e+01 2.05449e+00 196 2001 11 1.94062e+01 1.01419e+00 514 2001 12 1.94019e+01 1.44559e+00 275 2002 1 1.62381e+01 1.48765e+00 58 2002 2 1.58429e+01 2.41823e+00 296 2002 3 2.00081e+01 1.75017e+00 166 2002 4 2.50128e+01 2.56512e+00 432 2002 5 2.64194e+01 1.64207e+00 357 2002 6 2.86176e+01 7.62056e-01 310 2002 7 2.93252e+01 1.32977e+00 1156 2002 8 2.86182e+01 1.29429e+00 1702 2002 9 2.82268e+01 1.21082e+00 1619 2002 10 2.69187e+01 2.02711e+00 2261 2002 11 2.01732e+01 2.58376e+00 948 2002 12 1.45274e+01 1.22793e+00 439 2003 1 1.13390e+01 1.68706e+00 924 2003 2 1.45531e+01 1.68015e+00 854 2003 3 2.09049e+01 2.13915e+00 1032 2003 4 2.18401e+01 1.96631e+00 2255 2003 5 2.69231e+01 1.67555e+00 2635 2003 6 2.83027e+01 1.89084e+00 1370 2003 7 2.92987e+01 1.75575e+00 1039 2003 8 2.86787e+01 1.26551e+00 1434 2003 9 2.76562e+01 1.14251e+00 1664 2003 10 2.35224e+01 1.26551e+00 2133 2003 11 2.14580e+01 2.29822e+00 2291 2003 12 1.38030e+01 1.25265e+00 368 2004 1 1.32585e+01 1.31245e+00 983 2004 2 1.34642e+01 1.33839e+00 295 2004 3 1.92228e+01 1.74784e+00 2407 2004 4 2.05338e+01 2.35290e+00 2099 2004 5 2.65403e+01 1.87729e+00 3283 2004 6 2.99069e+01 1.11496e+00 1791 2004 7 3.02319e+01 1.53598e+00 1843 2004 8 2.97679e+01 1.76450e+00 1930 2004 9 2.72296e+01 2.09482e+00 1839 2004 10 2.47087e+01 1.94344e+00 2237 2004 11 2.15151e+01 3.09921e+00 1454 2004 12 1.69137e+01 2.06125e+00 705 2005 1 1.38556e+01 2.38205e+00 419 2005 2 1.49138e+01 1.77940e+00 777 2005 3 1.68341e+01 1.97352e+00 1328 2005 4 2.02861e+01 1.42572e+00 2002 2005 5 2.51564e+01 2.26519e+00 2053 2005 6 2.85355e+01 1.74966e+00 1820 2005 7 3.03540e+01 1.80470e+00 1968 2005 8 3.02794e+01 2.48574e+00 1657 2005 9 2.81618e+01 1.34779e+00 2261 2005 10 2.53555e+01 2.48116e+00 1774 2005 11 2.03260e+01 1.56344e+00 1172 2005 12 1.43440e+01 1.54359e+00 816 2006 1 1.49252e+01 1.96557e+00 1169 2006 2 1.38934e+01 1.65792e+00 1045 2006 3 1.88542e+01 2.01520e+00 2108 2006 4 2.33783e+01 2.15331e+00 2693 2006 5 2.56188e+01 2.29596e+00 2559 2006 6 2.83382e+01 1.57845e+00 2258 2006 7 3.02262e+01 1.47928e+00 2396 2006 8 3.03558e+01 1.13223e+00 2446 2006 9 2.80007e+01 1.64203e+00 2208 2006 10 2.35625e+01 2.25688e+00 2085 2006 11 1.85954e+01 1.60100e+00 1046 2006 12 1.57218e+01 1.34628e+00 662 2007 1 1.51940e+01 2.00568e+00 744 2007 2 1.43154e+01 1.82722e+00 1135 2007 3 1.92884e+01 2.19367e+00 2320 2007 4 2.12960e+01 2.50332e+00 1821 2007 5 2.46772e+01 1.32543e+00 2588 2007 6 2.80385e+01 1.71855e+00 1832 2007 7 3.02717e+01 1.82542e+00 1539 2007 8 3.08596e+01 1.16771e+00 2068 2007 9 2.75594e+01 1.23177e+00 1549 2007 10 2.56125e+01 1.69923e+00 1312 2007 11 1.81826e+01 1.69209e+00 1919 2007 12 1.77089e+01 1.85816e+00 1065 2008 1 1.37455e+01 1.84138e+00 416 2008 2 1.66249e+01 1.74275e+00 852 2008 3 1.79461e+01 2.02597e+00 1482 2008 4 2.23839e+01 1.55092e+00 1821 2008 5 2.51211e+01 1.91378e+00 2266 2008 6 2.91503e+01 1.39390e+00 2370 2008 7 3.01681e+01 1.49156e+00 1573 2008 8 2.89052e+01 1.71283e+00 1049 2008 9 2.72499e+01 2.13126e+00 1843 2008 10 2.33012e+01 2.56629e+00 2409 2008 11 1.69059e+01 2.37050e+00 1256 2008 12 1.56847e+01 1.81004e+00 1101 2009 1 1.53407e+01 2.08377e+00 1203 2009 2 1.43401e+01 1.70474e+00 1388 2009 3 1.85331e+01 2.86897e+00 1584 2009 4 2.21580e+01 1.62234e+00 1913 2009 5 2.66085e+01 1.51749e+00 1958 2009 6 2.95635e+01 1.62646e+00 2279 2009 7 2.90852e+01 1.55403e+00 2191 2009 8 2.94357e+01 1.93497e+00 1726 2009 9 2.81450e+01 1.21000e+00 2013 2009 10 2.63098e+01 2.87283e+00 2006 2009 11 1.87988e+01 1.71745e+00 1463 2009 12 1.33643e+01 2.73343e+00 429 2010 1 1.32957e+01 2.90214e+00 583 2010 2 1.16617e+01 1.46450e+00 1182 2010 3 1.60479e+01 2.37558e+00 1551 2010 4 2.18457e+01 1.55857e+00 2094 2010 5 2.70797e+01 1.86220e+00 2868 2010 6 3.05804e+01 1.56264e+00 2581 2010 7 3.01955e+01 1.61160e+00 2303 2010 8 2.99985e+01 1.21487e+00 1344 2010 9 2.87134e+01 1.81974e+00 2435 2010 10 2.40972e+01 1.43332e+00 3128 2010 11 1.89531e+01 1.68911e+00 1745 2010 12 1.44273e+01 2.55335e+00 630 2011 1 1.16609e+01 1.46556e+00 891 2011 2 1.59095e+01 2.98420e+00 1103 2011 3 1.97394e+01 2.22174e+00 2134 2011 4 2.39808e+01 1.91655e+00 2714 2011 5 2.61775e+01 2.17051e+00 3139 2011 6 2.97707e+01 1.66433e+00 2351 2011 7 2.96313e+01 1.24515e+00 1549 2011 8 3.06414e+01 1.57014e+00 2485 2011 9 2.79571e+01 1.48441e+00 2382 2011 10 2.26346e+01 2.45043e+00 2118 2011 11 1.82386e+01 1.56011e+00 1764 2011 12 1.58534e+01 1.27536e+00 1104 2012 1 1.51809e+01 2.01211e+00 1480 2012 2 1.66423e+01 2.40357e+00 493 2012 3 2.20275e+01 2.34096e+00 2434 2012 4 2.33944e+01 1.67504e+00 2481 2012 5 2.72518e+01 9.70684e-01 2846 2012 6 2.77092e+01 1.59911e+00 1595 2012 7 2.95229e+01 2.01644e+00 2067 2012 8 2.86862e+01 1.61481e+00 1426 2012 9 2.79165e+01 2.05396e+00 1765 2012 10 2.43810e+01 2.21781e+00 1843 2012 11 1.74642e+01 1.35322e+00 1613 2012 12 1.65173e+01 1.91807e+00 1222 2013 1 1.55732e+01 2.08538e+00 1181 2013 2 1.57719e+01 2.28815e+00 1192 2013 3 1.55146e+01 2.28694e+00 1571 2013 4 2.12639e+01 2.06864e+00 1839 2013 5 2.51557e+01 2.48365e+00 2289 2013 6 2.85924e+01 1.54595e+00 1506 2013 7 2.77951e+01 1.82152e+00 1093 2013 8 3.00809e+01 2.14173e+00 1772 2013 9 2.92262e+01 2.09746e+00 2064 2013 10 2.44414e+01 2.45214e+00 1932 2013 11 1.94422e+01 2.67390e+00 1114 2013 12 1.71746e+01 2.22318e+00 1020 2014 1 1.24598e+01 1.27272e+00 811 2014 2 1.47043e+01 2.01674e+00 973 2014 3 1.78645e+01 1.90147e+00 1640 2014 4 2.17917e+01 2.30487e+00 1827 2014 5 2.55936e+01 1.70198e+00 1898 2014 6 2.92518e+01 2.04251e+00 1746 2014 7 3.02131e+01 1.60887e+00 1929 2014 8 3.00832e+01 1.54989e+00 2530 2014 9 2.85130e+01 1.62419e+00 934 2014 10 2.48172e+01 2.12624e+00 2956 2014 11 1.65848e+01 2.05242e+00 988 2014 12 1.55034e+01 1.52000e+00 977 2015 1 1.38551e+01 1.60190e+00 1138 2015 2 1.30062e+01 1.57389e+00 1265 2015 3 1.98955e+01 2.56532e+00 1293 2015 4 2.33314e+01 1.60959e+00 631 2015 5 2.67474e+01 2.27499e+00 2796 2015 6 2.99593e+01 1.75025e+00 2155 2015 7 2.93172e+01 1.78591e+00 1516 2015 8 2.99293e+01 1.95963e+00 2069 2015 9 2.71606e+01 2.21141e+00 809 2015 10 2.38471e+01 1.77086e+00 1865 2015 11 2.25972e+01 3.42727e+00 1546 2015 12 1.88671e+01 2.38918e+00 745 2016 1 1.29057e+01 1.72755e+00 829 2016 2 1.41797e+01 2.12700e+00 1423 2016 3 1.90729e+01 2.24101e+00 1371 2016 4 2.24627e+01 2.22123e+00 1989 2016 5 2.62742e+01 1.98018e+00 2515 2016 6 2.97411e+01 1.76998e+00 2316 2016 7 3.12534e+01 1.45056e+00 2502 2016 8 3.05383e+01 1.46946e+00 2181 2016 9 2.89204e+01 1.54535e+00 1817 2016 10 2.46808e+01 1.91809e+00 2206 2016 11 1.97049e+01 2.52945e+00 1936 2016 12 1.76103e+01 2.21904e+00 954 2017 1 1.56313e+01 2.23282e+00 1012 2017 2 1.82000e+01 1.86503e+00 1769 2017 3 1.92933e+01 2.77614e+00 2003 2017 4 2.32479e+01 1.90992e+00 2184 2017 5 2.49256e+01 2.21111e+00 1920 2017 6 2.88940e+01 2.13445e+00 1340 2017 7 3.04974e+01 1.75895e+00 1111 2017 8 3.00587e+01 1.67018e+00 1943 2017 9 2.81594e+01 1.36004e+00 2136 2017 10 2.49533e+01 2.69783e+00 2158 2017 11 1.95498e+01 1.57105e+00 2130 2017 12 1.69150e+01 2.90601e+00 764 2018 1 1.18963e+01 1.93065e+00 756 2018 2 1.97426e+01 3.94854e+00 1317 2018 3 1.80277e+01 2.33208e+00 1729 2018 4 2.14916e+01 1.92743e+00 1842 2018 5 2.58658e+01 2.16933e+00 1521 2018 6 3.00290e+01 1.84320e+00 1649 2018 7 2.92932e+01 1.49394e+00 1401 2018 8 3.01246e+01 1.55563e+00 1623 2018 9 3.02728e+01 1.26623e+00 2481 2018 10 2.62701e+01 2.82795e+00 2074 2018 11 1.86632e+01 3.08457e+00 757 2018 12 1.60486e+01 1.97183e+00 948 2019 1 1.42935e+01 2.40863e+00 1002 2019 2 1.72503e+01 2.59252e+00 967 2019 3 1.86959e+01 2.00733e+00 1812 2019 4 2.21351e+01 2.19833e+00 1832 2019 5 2.78982e+01 2.08966e+00 2830 2019 6 2.90199e+01 1.45470e+00 1617 2019 7 2.98318e+01 1.78677e+00 1727 2019 8 3.04262e+01 1.31325e+00 1856 2019 9 2.90997e+01 1.57584e+00 3115 2019 10 2.57990e+01 2.10040e+00 2092 2019 11 1.86906e+01 2.21496e+00 1749 2019 12 1.60935e+01 1.76613e+00 1535 2020 1 1.55012e+01 2.23667e+00 1800 2020 2 1.55312e+01 1.75270e+00 1480 2020 3 2.24790e+01 3.61588e+00 2547 2020 4 2.39561e+01 1.38469e+00 1885 2020 5 2.51956e+01 1.97838e+00 2606 2020 6 2.98902e+01 1.60416e+00 1947 2020 7 3.00232e+01 1.78133e+00 1795 2020 8 3.12007e+01 1.41292e+00 1347 2020 9 2.86669e+01 2.20248e+00 1388 2020 10 2.54947e+01 1.47289e+00 2119 2020 11 2.08288e+01 2.02913e+00 2601 2020 12 1.43972e+01 1.48847e+00 1928 2021 1 1.44920e+01 2.36541e+00 1909 2021 2 1.67467e+01 2.79556e+00 1617 2021 3 1.93559e+01 2.47589e+00 2027 2021 4 2.21178e+01 2.14740e+00 2055 2021 5 2.57026e+01 1.71675e+00 2409 2021 6 2.81244e+01 1.79322e+00 827 2021 7 2.93007e+01 1.32700e+00 1231 2021 8 2.97078e+01 1.65269e+00 1622 2021 9 2.86553e+01 1.36492e+00 1872 2021 10 2.55961e+01 2.12580e+00 2082 2021 11 1.80264e+01 1.73242e+00 2172 2021 12 1.80547e+01 1.85292e+00 2574 2022 1 1.51221e+01 2.95157e+00 2180 2022 2 1.65763e+01 3.27244e+00 2261 2022 3 2.00738e+01 1.31532e+00 2497 2022 4 2.37260e+01 1.68443e+00 1517 2022 5 2.70476e+01 1.62743e+00 2635 2022 6 2.96987e+01 1.38240e+00 2261 2022 7 3.03551e+01 1.50734e+00 1995 2022 8 3.08111e+01 1.48687e+00 1683 2022 9 2.80153e+01 2.01041e+00 1567 2022 10 2.29191e+01 2.06754e+00 3200 2022 11 2.10947e+01 2.74281e+00 1673 2022 12 1.74974e+01 3.68832e+00 2926 2023 1 1.54258e+01 1.66886e+00 2404 2023 2 1.73898e+01 2.12625e+00 1636 2023 3 2.05396e+01 2.59491e+00 2244 2023 4 2.36184e+01 1.59731e+00 1844 2023 5 2.54774e+01 2.19986e+00 2176 2023 6 2.78545e+01 1.70036e+00 2255 2023 7 3.09881e+01 1.59379e+00 2844 2023 8 3.13650e+01 1.28195e+00 2619 2023 9 2.90670e+01 1.66261e+00 2206 2023 10 2.32225e+01 1.66388e+00 2500 2023 11 2.01222e+01 2.04220e+00 1549 2023 12 1.40575e+01 1.48681e+00 1158 2024 1 1.40209e+01 2.17820e+00 1326 2024 2 1.58761e+01 1.38733e+00 1929 2024 3 2.05139e+01 1.22106e+00 1416 2024 4 2.21779e+01 4.92090e-01 145