YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 1.84777e+01 2.24286e-01 128 2000 3 2.02289e+01 1.14472e+00 650 2000 4 2.08380e+01 1.82894e+00 514 2000 5 2.57099e+01 2.23079e+00 674 2000 6 2.74589e+01 1.39991e+00 404 2000 7 2.85784e+01 1.10941e+00 271 2000 8 2.95397e+01 8.63286e-01 289 2000 9 2.47760e+01 2.11584e+00 171 2000 10 2.23802e+01 1.14170e+00 507 2000 11 2.17549e+01 2.95054e+00 181 2000 12 nan nan 0 2001 1 1.15911e+01 3.24454e-02 32 2001 2 1.74631e+01 2.52104e+00 211 2001 3 1.61370e+01 1.82004e+00 302 2001 4 2.11836e+01 1.81003e+00 563 2001 5 2.54752e+01 1.01156e+00 608 2001 6 2.81751e+01 6.01186e-01 78 2001 7 2.97287e+01 1.05191e+00 128 2001 8 2.92487e+01 9.13142e-01 724 2001 9 2.71113e+01 1.63753e+00 389 2001 10 2.22462e+01 2.25480e+00 210 2001 11 1.92182e+01 1.07061e+00 595 2001 12 1.96630e+01 1.62623e+00 310 2002 1 1.71311e+01 9.08327e-02 54 2002 2 1.50972e+01 3.11061e+00 398 2002 3 2.02874e+01 2.68678e+00 191 2002 4 2.50299e+01 2.18355e+00 454 2002 5 2.65903e+01 1.81381e+00 352 2002 6 2.84032e+01 4.35935e-01 448 2002 7 2.92762e+01 1.58285e+00 1401 2002 8 2.89234e+01 1.54384e+00 1731 2002 9 2.81921e+01 1.46041e+00 1548 2002 10 2.63734e+01 2.50204e+00 1985 2002 11 1.97655e+01 2.44915e+00 1147 2002 12 1.42331e+01 1.40503e+00 386 2003 1 1.14388e+01 1.63763e+00 960 2003 2 1.44470e+01 1.56936e+00 873 2003 3 2.01578e+01 2.01122e+00 965 2003 4 2.13388e+01 2.64616e+00 2271 2003 5 2.69856e+01 1.26091e+00 2396 2003 6 2.82032e+01 1.92732e+00 1666 2003 7 2.98534e+01 1.55161e+00 1223 2003 8 2.81999e+01 1.52028e+00 1561 2003 9 2.74985e+01 1.11172e+00 1577 2003 10 2.35162e+01 1.22413e+00 2020 2003 11 2.11088e+01 2.23674e+00 2116 2003 12 1.34908e+01 1.05068e+00 288 2004 1 1.31365e+01 1.27680e+00 970 2004 2 1.27129e+01 1.60578e+00 311 2004 3 1.85585e+01 2.24724e+00 2015 2004 4 2.07331e+01 2.19572e+00 1962 2004 5 2.65399e+01 1.98119e+00 3064 2004 6 2.90115e+01 1.40628e+00 1900 2004 7 3.01540e+01 1.58261e+00 2030 2004 8 2.94004e+01 1.93383e+00 2135 2004 9 2.66177e+01 2.33309e+00 1606 2004 10 2.46430e+01 2.07234e+00 2262 2004 11 2.17891e+01 2.81316e+00 1288 2004 12 1.63624e+01 2.09385e+00 742 2005 1 1.42661e+01 2.95143e+00 641 2005 2 1.43207e+01 1.58522e+00 810 2005 3 1.65700e+01 1.92369e+00 1112 2005 4 2.01220e+01 1.42185e+00 1913 2005 5 2.46065e+01 2.60977e+00 2127 2005 6 2.81690e+01 1.51393e+00 1798 2005 7 3.04288e+01 1.42854e+00 2148 2005 8 2.98366e+01 2.28311e+00 1907 2005 9 2.78261e+01 1.35032e+00 2594 2005 10 2.54736e+01 2.07262e+00 1916 2005 11 1.98873e+01 1.86308e+00 1183 2005 12 1.39759e+01 1.69314e+00 615 2006 1 1.49056e+01 2.19740e+00 999 2006 2 1.34616e+01 1.85970e+00 1091 2006 3 1.85347e+01 2.01349e+00 2132 2006 4 2.30717e+01 2.31285e+00 2607 2006 5 2.51902e+01 2.20932e+00 2630 2006 6 2.84063e+01 1.38421e+00 2452 2006 7 2.98374e+01 1.81500e+00 2132 2006 8 3.02351e+01 1.38675e+00 2371 2006 9 2.78940e+01 1.73656e+00 2121 2006 10 2.37470e+01 2.16003e+00 2094 2006 11 1.83571e+01 1.65276e+00 1088 2006 12 1.57089e+01 1.42590e+00 641 2007 1 1.35392e+01 2.09460e+00 584 2007 2 1.36444e+01 1.90939e+00 1143 2007 3 1.91570e+01 2.36345e+00 2267 2007 4 2.10133e+01 2.59842e+00 1572 2007 5 2.42719e+01 1.32872e+00 2532 2007 6 2.78116e+01 1.99205e+00 1989 2007 7 2.99347e+01 1.85392e+00 1734 2007 8 3.02284e+01 1.66488e+00 2441 2007 9 2.79802e+01 1.49037e+00 1789 2007 10 2.55260e+01 1.70357e+00 1646 2007 11 1.79177e+01 1.75389e+00 1887 2007 12 1.70388e+01 2.18490e+00 927 2008 1 1.29454e+01 2.06711e+00 402 2008 2 1.57514e+01 2.00198e+00 1098 2008 3 1.77106e+01 1.81450e+00 1486 2008 4 2.21848e+01 1.82474e+00 1871 2008 5 2.54741e+01 1.71416e+00 2059 2008 6 2.90999e+01 1.18648e+00 2220 2008 7 2.94500e+01 1.50938e+00 1892 2008 8 2.87368e+01 1.86928e+00 1313 2008 9 2.71369e+01 2.35362e+00 2129 2008 10 2.36930e+01 1.90047e+00 2203 2008 11 1.67036e+01 2.39318e+00 1390 2008 12 1.51489e+01 1.90816e+00 947 2009 1 1.43160e+01 2.25022e+00 962 2009 2 1.41345e+01 1.81460e+00 1282 2009 3 1.84944e+01 2.60211e+00 1675 2009 4 2.16045e+01 2.26352e+00 2092 2009 5 2.63456e+01 1.71221e+00 1809 2009 6 2.89733e+01 1.83244e+00 2571 2009 7 2.90830e+01 1.47858e+00 1938 2009 8 2.96119e+01 1.54929e+00 1657 2009 9 2.79754e+01 1.13079e+00 1833 2009 10 2.65430e+01 2.83193e+00 2131 2009 11 1.82171e+01 1.55193e+00 1260 2009 12 1.22981e+01 1.38150e+00 262 2010 1 1.31661e+01 2.30081e+00 520 2010 2 1.11326e+01 1.46980e+00 1150 2010 3 1.56412e+01 2.38523e+00 1684 2010 4 2.17546e+01 1.64198e+00 1973 2010 5 2.71919e+01 2.05093e+00 2936 2010 6 3.05714e+01 1.45815e+00 2769 2010 7 3.01145e+01 2.01931e+00 2302 2010 8 2.98615e+01 1.50153e+00 1078 2010 9 2.86626e+01 1.66226e+00 2280 2010 10 2.42291e+01 1.54320e+00 3088 2010 11 1.88179e+01 1.60145e+00 1783 2010 12 1.36174e+01 2.66774e+00 697 2011 1 1.11826e+01 1.44230e+00 961 2011 2 1.53213e+01 2.96782e+00 937 2011 3 1.96197e+01 2.14374e+00 1990 2011 4 2.33700e+01 2.13657e+00 2600 2011 5 2.56691e+01 2.63147e+00 2717 2011 6 2.97068e+01 1.71143e+00 2357 2011 7 2.90708e+01 1.36800e+00 1746 2011 8 3.04759e+01 1.51400e+00 2544 2011 9 2.77053e+01 1.33756e+00 2081 2011 10 2.20882e+01 2.28237e+00 1893 2011 11 1.77828e+01 1.52292e+00 1615 2011 12 1.53421e+01 1.44453e+00 1068 2012 1 1.46673e+01 2.30186e+00 1417 2012 2 1.62709e+01 1.49282e+00 522 2012 3 2.19671e+01 2.42630e+00 2340 2012 4 2.29716e+01 1.79030e+00 2270 2012 5 2.69820e+01 1.32868e+00 2847 2012 6 2.74656e+01 1.63942e+00 1690 2012 7 2.93733e+01 1.78616e+00 1949 2012 8 2.87332e+01 1.43550e+00 1622 2012 9 2.80107e+01 1.74391e+00 2058 2012 10 2.43474e+01 1.87963e+00 1866 2012 11 1.75450e+01 1.42610e+00 1762 2012 12 1.72074e+01 2.17940e+00 1250 2013 1 1.61080e+01 2.26306e+00 784 2013 2 1.48603e+01 2.30971e+00 1116 2013 3 1.49126e+01 2.13689e+00 1707 2013 4 2.11327e+01 1.97280e+00 1730 2013 5 2.50571e+01 2.68354e+00 2315 2013 6 2.82417e+01 1.54988e+00 1839 2013 7 2.67652e+01 1.53229e+00 963 2013 8 3.02762e+01 1.91715e+00 1987 2013 9 2.90463e+01 1.86545e+00 2306 2013 10 2.38566e+01 2.54702e+00 1634 2013 11 1.96169e+01 2.53263e+00 980 2013 12 1.68155e+01 2.57936e+00 986 2014 1 1.19483e+01 1.38792e+00 775 2014 2 1.49999e+01 1.94343e+00 829 2014 3 1.73508e+01 1.74988e+00 1589 2014 4 2.15135e+01 2.24406e+00 1909 2014 5 2.52162e+01 2.02769e+00 2021 2014 6 2.90388e+01 1.76778e+00 2046 2014 7 2.96427e+01 1.41573e+00 1962 2014 8 3.00106e+01 1.56862e+00 2206 2014 9 2.80738e+01 2.31878e+00 1166 2014 10 2.42309e+01 2.15883e+00 2575 2014 11 1.64458e+01 2.31426e+00 1001 2014 12 1.52028e+01 1.55735e+00 1064 2015 1 1.36573e+01 1.18213e+00 976 2015 2 1.30310e+01 1.56337e+00 1224 2015 3 1.93239e+01 2.70971e+00 1432 2015 4 2.36137e+01 1.73665e+00 1076 2015 5 2.67963e+01 2.21930e+00 2860 2015 6 3.00135e+01 1.64194e+00 2332 2015 7 2.96442e+01 1.73412e+00 1055 2015 8 3.03247e+01 1.60278e+00 1980 2015 9 2.72270e+01 2.31028e+00 926 2015 10 2.35974e+01 1.81925e+00 1775 2015 11 2.24889e+01 3.80935e+00 1525 2015 12 1.87704e+01 2.54190e+00 804 2016 1 1.30065e+01 1.33689e+00 661 2016 2 1.41414e+01 2.11706e+00 1216 2016 3 1.83540e+01 2.15221e+00 1233 2016 4 2.22396e+01 2.39286e+00 1634 2016 5 2.59266e+01 2.01985e+00 2265 2016 6 2.95832e+01 1.71390e+00 2139 2016 7 3.10718e+01 1.53000e+00 2494 2016 8 3.05687e+01 1.31004e+00 2041 2016 9 2.92021e+01 1.28037e+00 2300 2016 10 2.42977e+01 1.75224e+00 2228 2016 11 1.96536e+01 2.64957e+00 1770 2016 12 1.75054e+01 1.75830e+00 890 2017 1 1.60835e+01 2.45496e+00 1017 2017 2 1.78270e+01 2.04177e+00 1757 2017 3 1.92942e+01 2.87332e+00 2196 2017 4 2.30583e+01 2.11687e+00 2021 2017 5 2.46715e+01 2.12230e+00 1662 2017 6 2.88639e+01 2.24648e+00 1409 2017 7 3.06569e+01 1.55283e+00 1196 2017 8 3.00216e+01 1.70569e+00 1982 2017 9 2.80178e+01 1.83386e+00 1966 2017 10 2.45907e+01 3.04776e+00 2446 2017 11 1.92120e+01 1.73142e+00 2087 2017 12 1.71948e+01 2.78966e+00 767 2018 1 1.16389e+01 1.92320e+00 753 2018 2 2.06476e+01 3.80683e+00 1222 2018 3 1.74748e+01 2.09468e+00 1966 2018 4 2.12459e+01 1.74380e+00 1586 2018 5 2.52601e+01 2.41153e+00 1568 2018 6 2.97522e+01 1.49182e+00 1673 2018 7 2.98612e+01 1.66690e+00 1676 2018 8 2.99692e+01 1.11955e+00 1764 2018 9 3.02414e+01 1.21906e+00 2824 2018 10 2.64505e+01 2.48270e+00 2546 2018 11 1.81431e+01 3.31752e+00 571 2018 12 1.55062e+01 2.43046e+00 807 2019 1 1.42387e+01 2.37839e+00 984 2019 2 1.66647e+01 2.56952e+00 1074 2019 3 1.74774e+01 1.98709e+00 1261 2019 4 2.19330e+01 2.26180e+00 1656 2019 5 2.76943e+01 2.22610e+00 3154 2019 6 2.93538e+01 1.18264e+00 1595 2019 7 2.97388e+01 1.38444e+00 2125 2019 8 3.03988e+01 1.08589e+00 2169 2019 9 2.91138e+01 1.57215e+00 2732 2019 10 2.60117e+01 2.13151e+00 1976 2019 11 1.80023e+01 2.20277e+00 1969 2019 12 1.56180e+01 1.97557e+00 1186 2020 1 1.45193e+01 1.95068e+00 1582 2020 2 1.43454e+01 1.35323e+00 1367 2020 3 2.22435e+01 4.12124e+00 2160 2020 4 2.32685e+01 1.50993e+00 2034 2020 5 2.49516e+01 1.84674e+00 2389 2020 6 2.94955e+01 1.60559e+00 2093 2020 7 3.01741e+01 1.43768e+00 2261 2020 8 3.10226e+01 1.35453e+00 1633 2020 9 2.83204e+01 2.58679e+00 1434 2020 10 2.53029e+01 1.67875e+00 2103 2020 11 2.07256e+01 1.91976e+00 2525 2020 12 1.40168e+01 1.63677e+00 1696 2021 1 1.38953e+01 2.14533e+00 1804 2021 2 1.60129e+01 2.95817e+00 1582 2021 3 1.89968e+01 2.45951e+00 2113 2021 4 2.14887e+01 2.28306e+00 2263 2021 5 2.55371e+01 1.87931e+00 2330 2021 6 2.85488e+01 1.56570e+00 1085 2021 7 2.94184e+01 1.44084e+00 1365 2021 8 3.01490e+01 1.45017e+00 1335 2021 9 2.81089e+01 1.03771e+00 1860 2021 10 2.55561e+01 1.91681e+00 2100 2021 11 1.76405e+01 1.92832e+00 2248 2021 12 1.76441e+01 1.98256e+00 2000 2022 1 1.44699e+01 2.94205e+00 2130 2022 2 1.62275e+01 3.29904e+00 2185 2022 3 1.94657e+01 1.62526e+00 2585 2022 4 2.34057e+01 1.86659e+00 1654 2022 5 2.68449e+01 1.67079e+00 2608 2022 6 2.99803e+01 1.45781e+00 2040 2022 7 3.02728e+01 1.30906e+00 1906 2022 8 3.07796e+01 1.55404e+00 1964 2022 9 2.81045e+01 1.98093e+00 1777 2022 10 2.28807e+01 2.21659e+00 3353 2022 11 2.13385e+01 2.36115e+00 1780 2022 12 1.74897e+01 3.38647e+00 2875 2023 1 1.49041e+01 1.77309e+00 2023 2023 2 1.71813e+01 2.44718e+00 1575 2023 3 2.02257e+01 2.60141e+00 2544 2023 4 2.33323e+01 1.56504e+00 1506 2023 5 2.53929e+01 2.19686e+00 2371 2023 6 2.80306e+01 2.05447e+00 2046 2023 7 3.06755e+01 1.29700e+00 2355 2023 8 3.11067e+01 1.14091e+00 2579 2023 9 2.89249e+01 1.70144e+00 2309 2023 10 2.29732e+01 1.59972e+00 2603 2023 11 2.02134e+01 2.29063e+00 1569 2023 12 1.41407e+01 1.57490e+00 1352 2024 1 1.37664e+01 1.78536e+00 1113 2024 2 1.54405e+01 1.37916e+00 1850 2024 3 1.99984e+01 1.20698e+00 1407 2024 4 2.11468e+01 7.93004e-01 169