YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 1.79892e+01 7.16560e-02 64 2000 3 2.08257e+01 1.42511e+00 715 2000 4 2.22498e+01 9.19919e-01 656 2000 5 2.55974e+01 1.75955e+00 738 2000 6 2.80668e+01 1.05495e+00 420 2000 7 2.88888e+01 6.67641e-01 423 2000 8 2.94741e+01 4.50980e-01 204 2000 9 2.65316e+01 1.53395e+00 386 2000 10 2.30400e+01 1.74404e+00 944 2000 11 2.18308e+01 1.85973e+00 510 2000 12 1.67010e+01 9.76381e-01 205 2001 1 1.23558e+01 2.01696e-01 125 2001 2 1.80662e+01 1.04309e+00 361 2001 3 1.73503e+01 1.10653e+00 537 2001 4 2.15362e+01 1.90950e+00 577 2001 5 2.51026e+01 1.59057e+00 844 2001 6 2.83074e+01 1.25850e+00 240 2001 7 2.86519e+01 7.05763e-01 143 2001 8 2.98060e+01 7.71305e-01 402 2001 9 2.72122e+01 1.57533e+00 385 2001 10 2.25921e+01 2.22766e+00 481 2001 11 1.97170e+01 8.54666e-01 782 2001 12 1.99523e+01 2.17229e+00 580 2002 1 1.36904e+01 1.80586e+00 148 2002 2 1.60535e+01 1.27144e+00 396 2002 3 1.70874e+01 2.91658e+00 218 2002 4 2.36519e+01 1.80061e+00 514 2002 5 2.62197e+01 1.64875e+00 830 2002 6 2.81800e+01 1.08415e+00 466 2002 7 2.93646e+01 1.13752e+00 1473 2002 8 2.91270e+01 8.48327e-01 2078 2002 9 2.86076e+01 1.09799e+00 2201 2002 10 2.71699e+01 1.69986e+00 3050 2002 11 2.02457e+01 2.69657e+00 2119 2002 12 1.47059e+01 9.87676e-01 1003 2003 1 1.20245e+01 1.42101e+00 1682 2003 2 1.49844e+01 1.80777e+00 740 2003 3 2.08130e+01 1.75022e+00 1470 2003 4 2.19254e+01 2.01835e+00 2737 2003 5 2.70840e+01 1.58870e+00 2589 2003 6 2.79947e+01 1.41945e+00 1603 2003 7 2.98177e+01 1.66367e+00 1272 2003 8 2.86758e+01 1.34609e+00 2199 2003 9 2.79496e+01 1.42918e+00 1894 2003 10 2.44248e+01 1.05987e+00 2443 2003 11 2.17335e+01 1.87761e+00 2730 2003 12 1.49611e+01 1.50139e+00 1251 2004 1 1.37699e+01 9.17681e-01 1520 2004 2 1.42287e+01 1.10962e+00 753 2004 3 1.87526e+01 1.53674e+00 2582 2004 4 2.02721e+01 1.69300e+00 2872 2004 5 2.59678e+01 1.89198e+00 3650 2004 6 3.00387e+01 1.09291e+00 2269 2004 7 3.02131e+01 1.33304e+00 2271 2004 8 2.96561e+01 1.35831e+00 2495 2004 9 2.71669e+01 1.99131e+00 1958 2004 10 2.50271e+01 1.73766e+00 2761 2004 11 2.19782e+01 2.23799e+00 2530 2004 12 1.60244e+01 2.39611e+00 1589 2005 1 1.42708e+01 1.58135e+00 1182 2005 2 1.50126e+01 1.00382e+00 1097 2005 3 1.69648e+01 2.03761e+00 1711 2005 4 2.05834e+01 1.18191e+00 3247 2005 5 2.48599e+01 2.09371e+00 3220 2005 6 2.81460e+01 1.61270e+00 2186 2005 7 3.04925e+01 1.64748e+00 2390 2005 8 3.06536e+01 1.83828e+00 1924 2005 9 2.79709e+01 1.20457e+00 2748 2005 10 2.50356e+01 2.90126e+00 3227 2005 11 1.98208e+01 1.79090e+00 2120 2005 12 1.49675e+01 2.11292e+00 1718 2006 1 1.50338e+01 1.12958e+00 1662 2006 2 1.46903e+01 1.46044e+00 1481 2006 3 1.86804e+01 1.32861e+00 3098 2006 4 2.27475e+01 2.35416e+00 3039 2006 5 2.54593e+01 1.44031e+00 3093 2006 6 2.83572e+01 1.09961e+00 3053 2006 7 3.01537e+01 1.32736e+00 2703 2006 8 3.04400e+01 1.10009e+00 2503 2006 9 2.89365e+01 1.37039e+00 2460 2006 10 2.47043e+01 2.01873e+00 2838 2006 11 1.90734e+01 1.59971e+00 1623 2006 12 1.65030e+01 1.20273e+00 580 2007 1 1.48291e+01 1.23008e+00 1062 2007 2 1.36370e+01 1.18806e+00 1206 2007 3 1.89005e+01 1.55778e+00 2867 2007 4 2.10952e+01 1.46576e+00 2597 2007 5 2.44368e+01 1.14011e+00 3813 2007 6 2.79342e+01 1.67208e+00 2472 2007 7 3.00178e+01 1.60265e+00 2303 2007 8 3.05553e+01 1.18915e+00 2413 2007 9 2.85986e+01 1.41736e+00 2334 2007 10 2.65321e+01 8.57620e-01 2008 2007 11 1.96040e+01 1.69568e+00 2904 2007 12 1.82827e+01 1.56296e+00 1759 2008 1 1.35152e+01 1.96787e+00 863 2008 2 1.69187e+01 1.42448e+00 1532 2008 3 1.79001e+01 1.75183e+00 2654 2008 4 2.22400e+01 1.29949e+00 2869 2008 5 2.53712e+01 1.56155e+00 2761 2008 6 2.91035e+01 1.33861e+00 2466 2008 7 3.01244e+01 1.30566e+00 1448 2008 8 2.85961e+01 1.53947e+00 1603 2008 9 2.76860e+01 1.75269e+00 2656 2008 10 2.36126e+01 2.24388e+00 3316 2008 11 1.74327e+01 2.02178e+00 2325 2008 12 1.59292e+01 1.73876e+00 1597 2009 1 1.49308e+01 2.21224e+00 1818 2009 2 1.43050e+01 1.45340e+00 1700 2009 3 1.81015e+01 2.63356e+00 2262 2009 4 2.22633e+01 1.91075e+00 2488 2009 5 2.61214e+01 1.34651e+00 2378 2009 6 2.86791e+01 1.42012e+00 2582 2009 7 2.92403e+01 1.28833e+00 2081 2009 8 2.96304e+01 1.73139e+00 2157 2009 9 2.88198e+01 9.66643e-01 2412 2009 10 2.59058e+01 2.75563e+00 3002 2009 11 1.98412e+01 1.42600e+00 2006 2009 12 1.43401e+01 2.11020e+00 471 2010 1 1.10318e+01 2.53398e+00 1442 2010 2 1.23306e+01 1.00844e+00 1650 2010 3 1.52506e+01 1.98681e+00 2132 2010 4 2.10096e+01 1.46152e+00 2138 2010 5 2.67081e+01 1.84072e+00 3434 2010 6 3.03952e+01 1.29929e+00 2599 2010 7 2.97640e+01 1.45892e+00 2676 2010 8 3.05890e+01 1.69456e+00 1190 2010 9 2.92623e+01 1.60242e+00 2791 2010 10 2.46501e+01 1.03096e+00 4365 2010 11 1.99676e+01 1.45801e+00 2908 2010 12 1.42231e+01 3.07486e+00 1861 2011 1 1.16706e+01 7.87083e-01 1408 2011 2 1.47045e+01 1.98915e+00 1023 2011 3 1.92869e+01 1.38751e+00 2227 2011 4 2.37030e+01 1.45738e+00 3649 2011 5 2.59501e+01 1.36705e+00 4351 2011 6 2.95372e+01 1.21694e+00 2397 2011 7 2.96606e+01 1.51459e+00 2039 2011 8 3.04445e+01 1.42754e+00 2876 2011 9 2.84728e+01 1.04680e+00 3102 2011 10 2.37383e+01 1.97876e+00 2514 2011 11 1.91973e+01 1.00746e+00 2152 2011 12 1.65815e+01 9.52989e-01 1691 2012 1 1.54023e+01 1.74176e+00 1968 2012 2 1.65845e+01 2.14849e+00 573 2012 3 2.13565e+01 2.08880e+00 2911 2012 4 2.35741e+01 1.05512e+00 3538 2012 5 2.68733e+01 1.13073e+00 3223 2012 6 2.76019e+01 1.00455e+00 1829 2012 7 2.96274e+01 1.87142e+00 2508 2012 8 2.96389e+01 1.27983e+00 1864 2012 9 2.83165e+01 1.18390e+00 2396 2012 10 2.46399e+01 2.53281e+00 2798 2012 11 1.86371e+01 9.03997e-01 2242 2012 12 1.73155e+01 1.59241e+00 1771 2013 1 1.57835e+01 1.16855e+00 1100 2013 2 1.63099e+01 1.42348e+00 1741 2013 3 1.62524e+01 1.54050e+00 2840 2013 4 2.12044e+01 2.00143e+00 1941 2013 5 2.45197e+01 2.05960e+00 2874 2013 6 2.86390e+01 1.81648e+00 2617 2013 7 2.87599e+01 1.66569e+00 1359 2013 8 2.97455e+01 1.97794e+00 2488 2013 9 2.91708e+01 1.77612e+00 2657 2013 10 2.54178e+01 1.84983e+00 2925 2013 11 1.98119e+01 2.46503e+00 1528 2013 12 1.65539e+01 1.80343e+00 946 2014 1 1.32926e+01 1.00888e+00 883 2014 2 1.52629e+01 2.50727e+00 1120 2014 3 1.77678e+01 1.66690e+00 2248 2014 4 2.15311e+01 1.58703e+00 1980 2014 5 2.54373e+01 1.52401e+00 2457 2014 6 2.87719e+01 1.74412e+00 2291 2014 7 3.01896e+01 1.71320e+00 1719 2014 8 2.96763e+01 1.33545e+00 2782 2014 9 2.85798e+01 1.44202e+00 1552 2014 10 2.53180e+01 1.90205e+00 3679 2014 11 1.78199e+01 2.13384e+00 1816 2014 12 1.64662e+01 1.30927e+00 1598 2015 1 1.49273e+01 1.43088e+00 1901 2015 2 1.39452e+01 1.33593e+00 1697 2015 3 1.99330e+01 1.98408e+00 1749 2015 4 2.35277e+01 1.87780e+00 1439 2015 5 2.68048e+01 1.80102e+00 3955 2015 6 3.01127e+01 1.45614e+00 2408 2015 7 2.94778e+01 1.63841e+00 1662 2015 8 2.97002e+01 1.77599e+00 2531 2015 9 2.76310e+01 1.28441e+00 1504 2015 10 2.41875e+01 1.57099e+00 2261 2015 11 2.24512e+01 2.91504e+00 2435 2015 12 1.89679e+01 1.14278e+00 1029 2016 1 1.50946e+01 1.87615e+00 1411 2016 2 1.48043e+01 1.73011e+00 1409 2016 3 1.84191e+01 1.85135e+00 989 2016 4 2.22793e+01 2.04029e+00 2476 2016 5 2.61774e+01 1.52068e+00 3072 2016 6 2.96438e+01 1.15241e+00 2973 2016 7 3.11917e+01 1.11708e+00 3174 2016 8 3.03240e+01 1.09115e+00 2125 2016 9 2.92153e+01 1.49799e+00 2890 2016 10 2.51901e+01 1.86804e+00 3269 2016 11 2.05827e+01 2.42344e+00 2739 2016 12 1.82142e+01 1.65803e+00 1632 2017 1 1.65030e+01 1.33735e+00 1699 2017 2 1.80382e+01 1.75885e+00 2259 2017 3 1.89481e+01 2.04226e+00 2974 2017 4 2.32818e+01 1.26489e+00 3018 2017 5 2.52648e+01 1.48131e+00 2696 2017 6 2.86302e+01 1.33842e+00 1434 2017 7 3.03531e+01 1.42512e+00 1702 2017 8 3.02304e+01 1.39863e+00 2004 2017 9 2.83305e+01 1.80313e+00 2565 2017 10 2.53079e+01 2.34796e+00 2888 2017 11 2.03272e+01 1.15545e+00 2835 2017 12 1.75669e+01 2.37621e+00 1331 2018 1 1.14134e+01 1.47878e+00 1270 2018 2 1.89902e+01 2.68287e+00 1312 2018 3 1.84073e+01 1.97449e+00 2842 2018 4 2.16700e+01 1.18691e+00 2449 2018 5 2.50955e+01 1.36884e+00 1913 2018 6 2.91118e+01 1.71814e+00 2260 2018 7 2.97988e+01 1.52745e+00 1617 2018 8 3.02792e+01 1.23569e+00 1934 2018 9 3.03864e+01 1.15015e+00 3363 2018 10 2.70893e+01 2.23310e+00 3104 2018 11 2.02433e+01 2.26718e+00 1509 2018 12 1.61978e+01 1.48474e+00 1437 2019 1 1.57416e+01 1.60653e+00 1582 2019 2 1.75550e+01 2.72896e+00 1074 2019 3 1.87106e+01 1.63727e+00 2591 2019 4 2.24805e+01 1.76786e+00 2153 2019 5 2.74683e+01 1.84803e+00 3458 2019 6 2.90733e+01 1.43036e+00 1916 2019 7 2.99357e+01 1.42834e+00 1628 2019 8 2.99293e+01 1.17454e+00 1889 2019 9 2.90255e+01 1.10861e+00 3678 2019 10 2.64815e+01 1.87360e+00 2318 2019 11 1.95688e+01 2.38336e+00 2162 2019 12 1.74440e+01 1.25557e+00 1704 2020 1 1.66185e+01 1.52444e+00 2582 2020 2 1.60007e+01 1.15770e+00 1710 2020 3 2.14801e+01 3.35546e+00 2650 2020 4 2.43102e+01 7.68307e-01 1894 2020 5 2.48855e+01 1.45397e+00 3136 2020 6 2.94153e+01 1.27877e+00 2134 2020 7 2.98589e+01 1.29455e+00 2063 2020 8 3.15757e+01 1.49776e+00 1218 2020 9 2.85077e+01 2.30278e+00 1351 2020 10 2.58798e+01 9.05501e-01 2510 2020 11 2.16496e+01 1.85927e+00 2811 2020 12 1.53260e+01 1.43176e+00 2926 2021 1 1.44873e+01 1.46241e+00 1886 2021 2 1.70213e+01 2.33360e+00 1912 2021 3 1.90790e+01 1.70656e+00 2265 2021 4 2.23993e+01 1.57961e+00 2575 2021 5 2.55939e+01 1.35567e+00 2992 2021 6 2.80875e+01 1.28874e+00 1452 2021 7 2.95347e+01 1.31433e+00 1637 2021 8 3.03911e+01 1.18370e+00 1594 2021 9 2.87046e+01 1.24815e+00 2173 2021 10 2.63951e+01 1.79885e+00 2147 2021 11 1.91371e+01 1.58639e+00 2666 2021 12 1.83123e+01 1.17198e+00 2778 2022 1 1.61358e+01 2.34430e+00 2641 2022 2 1.61477e+01 2.63475e+00 2379 2022 3 1.95324e+01 1.23844e+00 2876 2022 4 2.31432e+01 1.25751e+00 1987 2022 5 2.69038e+01 1.19305e+00 2894 2022 6 2.93983e+01 1.31844e+00 2710 2022 7 3.10585e+01 1.18304e+00 2146 2022 8 3.11592e+01 1.06539e+00 1919 2022 9 2.86483e+01 1.87775e+00 1958 2022 10 2.35123e+01 1.45278e+00 3012 2022 11 2.17160e+01 2.35875e+00 1509 2022 12 1.76098e+01 2.90241e+00 2990 2023 1 1.49847e+01 1.11966e+00 2490 2023 2 1.71807e+01 1.41088e+00 2118 2023 3 2.07737e+01 1.73640e+00 3002 2023 4 2.32290e+01 1.06324e+00 2092 2023 5 2.57535e+01 1.78957e+00 2664 2023 6 2.78922e+01 1.36792e+00 2138 2023 7 3.07218e+01 1.34825e+00 2457 2023 8 3.12238e+01 9.68342e-01 2750 2023 9 2.93788e+01 1.34080e+00 2406 2023 10 2.39342e+01 1.55569e+00 2653 2023 11 2.06491e+01 1.72330e+00 1966 2023 12 1.49933e+01 1.65637e+00 1301 2024 1 1.41528e+01 9.49063e-01 1294 2024 2 1.57272e+01 9.41409e-01 1969 2024 3 2.05080e+01 1.23847e+00 1967 2024 4 2.21694e+01 4.90490e-01 192