YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 3.24648e+00 3.50862e-02 91 2000 3 3.98075e+00 7.88940e-01 346 2000 4 6.37455e+00 5.45810e-01 178 2000 5 9.91869e+00 1.76111e+00 279 2000 6 1.46404e+01 5.19615e-01 213 2000 7 1.66286e+01 1.59880e+00 400 2000 8 1.86003e+01 1.13164e+00 306 2000 9 1.63814e+01 1.62815e+00 417 2000 10 1.30078e+01 1.42219e+00 185 2000 11 9.05309e+00 7.76425e-01 459 2000 12 6.10955e+00 1.06568e+00 256 2001 1 3.16908e+00 5.20114e-01 292 2001 2 3.28609e+00 3.17636e-01 340 2001 3 3.14203e+00 4.86942e-01 300 2001 4 5.95990e+00 2.00075e+00 389 2001 5 1.19228e+01 1.41005e+00 280 2001 6 1.45627e+01 1.32409e+00 198 2001 7 1.49242e+01 2.08284e+00 398 2001 8 1.73144e+01 8.19729e-01 147 2001 9 1.53845e+01 1.23195e+00 500 2001 10 1.07329e+01 7.91510e-01 375 2001 11 8.23600e+00 1.28613e+00 425 2001 12 7.41986e+00 1.05232e+00 442 2002 1 4.53812e+00 5.54569e-01 321 2002 2 3.67076e+00 6.78318e-01 170 2002 3 4.40310e+00 7.16196e-01 158 2002 4 7.29228e+00 1.64651e+00 355 2002 5 9.97735e+00 1.71942e+00 324 2002 6 1.26925e+01 2.89750e+00 242 2002 7 1.70165e+01 1.76311e+00 1169 2002 8 1.85303e+01 1.88434e+00 1397 2002 9 1.69695e+01 1.88526e+00 1354 2002 10 1.36854e+01 1.80265e+00 1878 2002 11 9.46112e+00 1.02349e+00 1502 2002 12 5.44136e+00 9.23398e-01 1797 2003 1 2.86943e+00 1.27674e+00 764 2003 2 1.94371e+00 6.68928e-01 369 2003 3 2.39213e+00 1.31597e+00 733 2003 4 4.45689e+00 1.85800e+00 719 2003 5 8.64513e+00 1.80720e+00 741 2003 6 1.32813e+01 2.21528e+00 607 2003 7 1.69737e+01 1.22146e+00 614 2003 8 1.79005e+01 1.69969e+00 1010 2003 9 1.68929e+01 1.47630e+00 1574 2003 10 1.25611e+01 1.91887e+00 1534 2003 11 8.82916e+00 1.19450e+00 1179 2003 12 5.39464e+00 8.80773e-01 1580 2004 1 3.41051e+00 1.37784e+00 829 2004 2 1.32591e+00 6.57968e-01 881 2004 3 2.48693e+00 3.24327e-01 572 2004 4 5.32534e+00 1.29290e+00 900 2004 5 9.49171e+00 2.52474e+00 962 2004 6 1.39514e+01 1.18927e+00 1122 2004 7 1.73613e+01 1.92722e+00 1224 2004 8 1.74941e+01 1.38158e+00 1488 2004 9 1.58847e+01 1.07892e+00 1487 2004 10 1.34823e+01 1.83095e+00 1577 2004 11 9.28619e+00 1.51990e+00 2255 2004 12 5.96231e+00 1.30466e+00 1568 2005 1 3.13830e+00 1.11682e+00 572 2005 2 1.50472e+00 8.92150e-01 430 2005 3 2.19651e+00 6.54529e-01 901 2005 4 6.81601e+00 1.70582e+00 1597 2005 5 8.35181e+00 1.62128e+00 598 2005 6 1.41618e+01 1.74013e+00 480 2005 7 1.76117e+01 1.40190e+00 1021 2005 8 1.84528e+01 1.56004e+00 1614 2005 9 1.57746e+01 1.42009e+00 1328 2005 10 1.14379e+01 1.51513e+00 892 2005 11 9.18623e+00 1.18861e+00 1852 2005 12 5.46841e+00 1.15791e+00 1777 2006 1 4.24324e+00 6.18070e-01 1092 2006 2 3.32190e+00 9.21911e-01 762 2006 3 3.03046e+00 1.01500e+00 1120 2006 4 7.03751e+00 1.39842e+00 1714 2006 5 9.17798e+00 1.96981e+00 785 2006 6 1.45694e+01 1.74785e+00 715 2006 7 1.74917e+01 2.59993e+00 664 2006 8 1.73166e+01 1.21719e+00 1250 2006 9 1.67069e+01 1.71324e+00 1760 2006 10 1.22213e+01 1.46193e+00 1698 2006 11 9.74517e+00 2.88127e+00 1276 2006 12 7.80891e+00 1.16018e+00 1924 2007 1 5.58553e+00 1.22283e+00 1206 2007 2 2.65647e+00 8.89660e-01 1097 2007 3 3.63809e+00 1.07390e+00 1158 2007 4 4.95376e+00 1.63029e+00 970 2007 5 1.00498e+01 2.19221e+00 1474 2007 6 1.51689e+01 1.21573e+00 1230 2007 7 1.74688e+01 2.39012e+00 1076 2007 8 1.71081e+01 1.96794e+00 1329 2007 9 1.50803e+01 1.24178e+00 1390 2007 10 1.29432e+01 1.49869e+00 1442 2007 11 8.83863e+00 1.50400e+00 1237 2007 12 5.33379e+00 1.21517e+00 1098 2008 1 3.37905e+00 6.23918e-01 928 2008 2 2.94025e+00 4.06166e-01 769 2008 3 3.30157e+00 3.26989e-01 1152 2008 4 7.12448e+00 1.95948e+00 1203 2008 5 9.60619e+00 1.56886e+00 1510 2008 6 1.56626e+01 1.46224e+00 985 2008 7 1.80757e+01 1.48071e+00 1256 2008 8 1.87077e+01 1.44981e+00 2426 2008 9 1.63698e+01 2.31217e+00 1515 2008 10 1.27278e+01 1.37025e+00 2043 2008 11 9.02565e+00 1.39216e+00 1422 2008 12 6.10977e+00 9.00199e-01 1512 2009 1 3.37035e+00 1.20110e+00 1058 2009 2 1.82451e+00 9.56011e-01 854 2009 3 3.19301e+00 6.96274e-01 873 2009 4 5.44890e+00 1.77045e+00 1217 2009 5 1.01954e+01 1.57870e+00 864 2009 6 1.40601e+01 1.84664e+00 867 2009 7 1.68394e+01 1.37725e+00 1745 2009 8 1.86634e+01 1.59922e+00 1499 2009 9 1.68596e+01 8.57368e-01 2286 2009 10 1.13016e+01 1.26634e+00 1526 2009 11 1.02478e+01 8.02416e-01 1556 2009 12 7.11485e+00 1.52090e+00 1876 2010 1 2.87681e+00 9.74881e-01 937 2010 2 2.25865e+00 1.08554e+00 757 2010 3 3.89152e+00 1.13276e+00 1058 2010 4 7.50837e+00 7.90653e-01 1230 2010 5 1.13510e+01 2.90247e+00 1150 2010 6 1.42817e+01 2.07333e+00 793 2010 7 1.82151e+01 2.10872e+00 1572 2010 8 1.75874e+01 1.11574e+00 1250 2010 9 1.62107e+01 1.57076e+00 1704 2010 10 1.34507e+01 1.29389e+00 1853 2010 11 9.01721e+00 1.37257e+00 1401 2010 12 5.82645e+00 1.55711e+00 1405 2011 1 3.48504e+00 1.28677e+00 844 2011 2 2.10381e+00 5.21537e-01 859 2011 3 3.33974e+00 7.99313e-01 1268 2011 4 5.23610e+00 1.14499e+00 865 2011 5 1.01909e+01 3.24088e+00 678 2011 6 1.46497e+01 2.83887e+00 1059 2011 7 1.81689e+01 1.26511e+00 1516 2011 8 1.83542e+01 1.48085e+00 1465 2011 9 1.62015e+01 1.22808e+00 1741 2011 10 1.39662e+01 1.62753e+00 1352 2011 11 1.00485e+01 1.10581e+00 1541 2011 12 8.16250e+00 1.29860e+00 1700 2012 1 5.41155e+00 1.10107e+00 1507 2012 2 4.14894e+00 8.85182e-01 1506 2012 3 5.88777e+00 1.11983e+00 468 2012 4 7.98288e+00 1.47863e+00 1721 2012 5 1.22875e+01 2.35636e+00 908 2012 6 1.58827e+01 1.94125e+00 1207 2012 7 1.87084e+01 1.67084e+00 1749 2012 8 1.93844e+01 1.34112e+00 2025 2012 9 1.58885e+01 1.38109e+00 1600 2012 10 1.30863e+01 1.11748e+00 1608 2012 11 9.75840e+00 1.42346e+00 1681 2012 12 6.93319e+00 7.15780e-01 1014 2013 1 5.12072e+00 1.16188e+00 1300 2013 2 3.00521e+00 1.13009e+00 900 2013 3 3.64998e+00 7.92561e-01 980 2013 4 6.69793e+00 2.70048e+00 1730 2013 5 1.09532e+01 1.85508e+00 1300 2013 6 1.53803e+01 1.56567e+00 1642 2013 7 2.12566e+01 1.93293e+00 1507 2013 8 1.77233e+01 2.07019e+00 1731 2013 9 1.52928e+01 1.11887e+00 1844 2013 10 1.40670e+01 1.70260e+00 2375 2013 11 9.36588e+00 1.22783e+00 1678 2013 12 4.94231e+00 1.16825e+00 1036 2014 1 2.87195e+00 8.17760e-01 719 2014 2 1.61315e+00 4.82918e-01 479 2014 3 2.27122e+00 5.42557e-01 752 2014 4 5.13568e+00 8.32719e-01 1139 2014 5 9.86462e+00 2.45195e+00 883 2014 6 1.55530e+01 1.58383e+00 1667 2014 7 1.63438e+01 1.73753e+00 1119 2014 8 1.82860e+01 1.69812e+00 2228 2014 9 1.69513e+01 1.16298e+00 1941 2014 10 1.44775e+01 1.37602e+00 1487 2014 11 9.63545e+00 1.31353e+00 918 2014 12 6.72666e+00 6.29895e-01 1189 2015 1 4.05044e+00 1.22055e+00 1155 2015 2 2.16653e+00 8.13814e-01 134 2015 3 1.70622e+00 3.77208e-01 439 2015 4 5.05080e+00 2.10355e+00 1097 2015 5 1.11222e+01 1.38934e+00 777 2015 6 1.50914e+01 2.44598e+00 903 2015 7 1.90733e+01 1.78418e+00 2400 2015 8 1.85565e+01 1.83221e+00 2205 2015 9 1.85815e+01 1.09009e+00 1977 2015 10 1.35574e+01 1.59615e+00 1743 2015 11 1.05717e+01 1.10258e+00 1613 2015 12 8.05125e+00 1.03676e+00 1021 2016 1 5.49150e+00 1.13109e+00 1201 2016 2 3.59316e+00 8.70743e-01 1033 2016 3 5.08388e+00 1.11449e+00 1157 2016 4 6.63332e+00 1.46630e+00 1936 2016 5 9.47742e+00 2.08890e+00 856 2016 6 1.45451e+01 1.70384e+00 1560 2016 7 1.87930e+01 2.16867e+00 1476 2016 8 1.93904e+01 1.71860e+00 2508 2016 9 1.74582e+01 1.52101e+00 2056 2016 10 1.50808e+01 1.03365e+00 1694 2016 11 1.07865e+01 1.26567e+00 1785 2016 12 7.42002e+00 1.46773e+00 1682 2017 1 4.61459e+00 1.38824e+00 844 2017 2 4.53986e+00 6.54773e-01 1135 2017 3 3.71988e+00 5.98603e-01 1221 2017 4 5.63315e+00 1.83778e+00 842 2017 5 1.00050e+01 2.48443e+00 878 2017 6 1.33393e+01 2.66325e+00 559 2017 7 1.72050e+01 1.43338e+00 1224 2017 8 1.72397e+01 1.77881e+00 2125 2017 9 1.64358e+01 2.00160e+00 1294 2017 10 1.50678e+01 1.52268e+00 1661 2017 11 9.31422e+00 1.15272e+00 1961 2017 12 5.97336e+00 1.31592e+00 1377 2018 1 2.79347e+00 9.79565e-01 858 2018 2 3.13259e+00 1.08805e+00 757 2018 3 3.53758e+00 6.86198e-01 964 2018 4 5.12359e+00 1.09049e+00 1059 2018 5 1.12321e+01 3.15092e+00 499 2018 6 1.55457e+01 1.14948e+00 778 2018 7 1.79639e+01 1.84648e+00 1252 2018 8 2.03590e+01 1.72457e+00 1604 2018 9 1.89733e+01 1.80038e+00 1753 2018 10 1.35250e+01 2.16859e+00 1764 2018 11 9.59527e+00 1.75815e+00 1399 2018 12 6.07420e+00 1.14300e+00 1171 2019 1 4.34858e+00 1.42782e+00 1424 2019 2 2.69258e+00 4.60615e-01 916 2019 3 3.21812e+00 6.86656e-01 1170 2019 4 5.62148e+00 1.51145e+00 1143 2019 5 9.79933e+00 2.18545e+00 953 2019 6 1.37374e+01 1.67189e+00 867 2019 7 1.95856e+01 1.70281e+00 1952 2019 8 1.75823e+01 1.94519e+00 2038 2019 9 1.72634e+01 1.08361e+00 2953 2019 10 1.38061e+01 6.93766e-01 1504 2019 11 1.00301e+01 1.93768e+00 2179 2019 12 5.83196e+00 9.87533e-01 1899 2020 1 4.76023e+00 7.60155e-01 1626 2020 2 3.84080e+00 3.83580e-01 1785 2020 3 5.30387e+00 8.82014e-01 1892 2020 4 6.27129e+00 4.36900e-01 1634 2020 5 1.01522e+01 2.35266e+00 2240 2020 6 1.54594e+01 2.48516e+00 2006 2020 7 1.92918e+01 1.30954e+00 1908 2020 8 1.94282e+01 1.27815e+00 852 2020 9 1.68831e+01 1.26592e+00 2724 2020 10 1.38864e+01 1.19485e+00 2690 2020 11 1.03199e+01 1.30026e+00 1723 2020 12 6.52743e+00 1.37649e+00 1799 2021 1 4.40156e+00 6.98665e-01 1467 2021 2 2.56478e+00 6.10590e-01 1274 2021 3 4.30156e+00 9.85029e-01 2426 2021 4 6.92292e+00 1.25372e+00 1941 2021 5 1.15100e+01 1.79346e+00 1644 2021 6 1.58903e+01 2.27239e+00 1738 2021 7 1.94079e+01 1.78883e+00 1414 2021 8 2.02277e+01 1.86774e+00 1462 2021 9 1.80619e+01 1.12560e+00 2297 2021 10 1.55786e+01 1.41908e+00 1911 2021 11 1.17001e+01 1.15297e+00 2605 2021 12 8.07932e+00 5.74804e-01 1346 2022 1 5.17204e+00 1.25013e+00 1549 2022 2 3.30610e+00 7.07332e-01 1854 2022 3 4.68482e+00 8.97013e-01 1828 2022 4 7.46177e+00 7.06796e-01 1142 2022 5 1.12983e+01 2.50245e+00 1708 2022 6 1.53685e+01 1.82393e+00 2310 2022 7 1.71243e+01 1.24051e+00 2087 2022 8 2.00504e+01 1.48324e+00 2413 2022 9 1.76497e+01 1.39959e+00 2640 2022 10 1.44490e+01 9.57732e-01 2357 2022 11 1.14080e+01 1.78476e+00 3491 2022 12 7.00253e+00 1.30190e+00 2277 2023 1 4.89975e+00 6.77411e-01 1110 2023 2 4.42864e+00 7.48725e-01 1003 2023 3 5.03329e+00 9.30292e-01 1934 2023 4 7.88448e+00 1.70957e+00 1670 2023 5 1.24396e+01 1.39245e+00 3490 2023 6 1.64838e+01 2.02565e+00 1660 2023 7 1.99339e+01 1.48783e+00 2353 2023 8 1.77522e+01 1.23196e+00 2098 2023 9 1.89055e+01 1.55836e+00 2038 2023 10 1.56763e+01 1.63665e+00 1693 2023 11 1.03515e+01 1.50466e+00 2946 2023 12 7.32473e+00 8.27469e-01 2179 2024 1 5.58393e+00 8.12790e-01 1769 2024 2 3.66253e+00 6.35466e-01 2760 2024 3 5.17000e+00 7.38557e-01 1357 2024 4 5.49766e+00 4.68623e-02 64