YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 1.78121e+01 1.85922e-01 128 2000 3 2.04379e+01 1.64480e+00 770 2000 4 2.23172e+01 8.79463e-01 655 2000 5 2.54528e+01 1.85537e+00 824 2000 6 2.80559e+01 4.60368e-01 320 2000 7 2.87623e+01 6.39549e-01 362 2000 8 2.96098e+01 3.78189e-01 310 2000 9 2.68443e+01 1.46995e+00 346 2000 10 2.32126e+01 1.61728e+00 990 2000 11 2.22369e+01 1.79016e+00 444 2000 12 1.61324e+01 1.75419e+00 251 2001 1 1.23726e+01 1.48107e-01 92 2001 2 1.77547e+01 1.29134e+00 334 2001 3 1.69471e+01 1.85422e+00 572 2001 4 2.11382e+01 2.02124e+00 684 2001 5 2.52228e+01 9.59880e-01 719 2001 6 2.91468e+01 7.84068e-01 254 2001 7 2.91113e+01 7.33928e-01 131 2001 8 2.84632e+01 2.44653e+00 484 2001 9 2.66213e+01 1.45499e+00 423 2001 10 2.28485e+01 1.83346e+00 490 2001 11 1.97432e+01 8.00157e-01 768 2001 12 2.00654e+01 2.11900e+00 586 2002 1 1.31122e+01 4.59076e-01 131 2002 2 1.59390e+01 1.28394e+00 385 2002 3 1.80283e+01 2.01945e+00 180 2002 4 2.35757e+01 2.08346e+00 502 2002 5 2.63052e+01 1.68542e+00 863 2002 6 2.81237e+01 9.99173e-01 589 2002 7 2.93341e+01 1.19217e+00 1853 2002 8 2.89887e+01 9.44883e-01 2027 2002 9 2.86210e+01 1.05916e+00 2084 2002 10 2.72427e+01 1.66327e+00 2865 2002 11 2.04721e+01 2.72773e+00 2291 2002 12 1.46585e+01 8.87438e-01 1119 2003 1 1.21555e+01 1.30628e+00 1723 2003 2 1.45005e+01 2.12463e+00 1154 2003 3 2.09788e+01 1.64655e+00 1427 2003 4 2.17714e+01 1.94121e+00 2827 2003 5 2.68998e+01 1.49219e+00 2582 2003 6 2.82081e+01 1.22647e+00 1611 2003 7 2.91809e+01 1.44359e+00 1154 2003 8 2.85967e+01 1.45082e+00 2170 2003 9 2.78766e+01 1.41837e+00 2077 2003 10 2.44256e+01 1.11093e+00 2766 2003 11 2.15293e+01 1.93151e+00 2818 2003 12 1.51890e+01 1.51378e+00 1212 2004 1 1.36444e+01 9.49436e-01 1642 2004 2 1.41078e+01 1.13543e+00 785 2004 3 1.87554e+01 1.47344e+00 2631 2004 4 2.01404e+01 1.77567e+00 2672 2004 5 2.59044e+01 1.90089e+00 3379 2004 6 2.96223e+01 1.35572e+00 2379 2004 7 2.99755e+01 1.47414e+00 2347 2004 8 2.96148e+01 1.49771e+00 2407 2004 9 2.71415e+01 2.01990e+00 1974 2004 10 2.51862e+01 1.89394e+00 2786 2004 11 2.21755e+01 2.37068e+00 2371 2004 12 1.64459e+01 2.21383e+00 1660 2005 1 1.48060e+01 2.03049e+00 1254 2005 2 1.47522e+01 1.02679e+00 1214 2005 3 1.68042e+01 1.94784e+00 1692 2005 4 2.04439e+01 1.03416e+00 2959 2005 5 2.45628e+01 2.11861e+00 3031 2005 6 2.82575e+01 1.52452e+00 1974 2005 7 3.05588e+01 1.46543e+00 2191 2005 8 3.02444e+01 1.98258e+00 1985 2005 9 2.79851e+01 1.25088e+00 2683 2005 10 2.54743e+01 2.61356e+00 3063 2005 11 1.98802e+01 1.53932e+00 2201 2005 12 1.49238e+01 2.04569e+00 1630 2006 1 1.49673e+01 1.05342e+00 1743 2006 2 1.47453e+01 1.37586e+00 1587 2006 3 1.87022e+01 1.23284e+00 2879 2006 4 2.26241e+01 2.33896e+00 2747 2006 5 2.52192e+01 1.71584e+00 3310 2006 6 2.82726e+01 1.19133e+00 3130 2006 7 3.00231e+01 1.22524e+00 2873 2006 8 3.04384e+01 1.07340e+00 2362 2006 9 2.87818e+01 1.58595e+00 2858 2006 10 2.46039e+01 2.09900e+00 2954 2006 11 1.83789e+01 1.87998e+00 1726 2006 12 1.62705e+01 1.10125e+00 608 2007 1 1.48937e+01 1.12059e+00 984 2007 2 1.36382e+01 1.22424e+00 1194 2007 3 1.87357e+01 1.62374e+00 3181 2007 4 2.08365e+01 1.49689e+00 2468 2007 5 2.44791e+01 1.03739e+00 3670 2007 6 2.76971e+01 1.80870e+00 2621 2007 7 2.98704e+01 1.70927e+00 2114 2007 8 3.04383e+01 1.33282e+00 2756 2007 9 2.86560e+01 1.43982e+00 2512 2007 10 2.65248e+01 8.42177e-01 1718 2007 11 1.96442e+01 1.59561e+00 2782 2007 12 1.81332e+01 1.56300e+00 1744 2008 1 1.40965e+01 2.05999e+00 954 2008 2 1.67534e+01 1.25257e+00 1558 2008 3 1.80576e+01 2.04824e+00 2507 2008 4 2.23212e+01 1.22119e+00 2716 2008 5 2.50722e+01 1.67453e+00 3050 2008 6 2.91725e+01 1.14781e+00 2330 2008 7 3.00864e+01 1.15959e+00 1497 2008 8 2.83309e+01 1.53484e+00 1486 2008 9 2.78947e+01 1.66317e+00 2884 2008 10 2.37309e+01 2.15386e+00 3087 2008 11 1.75615e+01 1.94983e+00 2340 2008 12 1.56153e+01 1.37829e+00 1499 2009 1 1.49583e+01 1.98547e+00 1929 2009 2 1.41247e+01 1.46031e+00 1826 2009 3 1.82005e+01 2.61034e+00 2096 2009 4 2.21579e+01 1.43204e+00 2591 2009 5 2.58797e+01 1.47286e+00 2520 2009 6 2.84887e+01 1.40086e+00 2609 2009 7 2.91633e+01 1.29556e+00 2226 2009 8 2.96726e+01 1.66505e+00 2245 2009 9 2.88025e+01 9.27484e-01 2421 2009 10 2.56935e+01 2.83118e+00 3022 2009 11 1.98115e+01 1.46484e+00 2059 2009 12 1.39731e+01 1.95868e+00 566 2010 1 1.11971e+01 2.45809e+00 1413 2010 2 1.23375e+01 8.91187e-01 1694 2010 3 1.50698e+01 1.94190e+00 2056 2010 4 2.10745e+01 1.37923e+00 2041 2010 5 2.66654e+01 1.87118e+00 3437 2010 6 3.00780e+01 1.38926e+00 2818 2010 7 2.99299e+01 1.42965e+00 2379 2010 8 3.03234e+01 1.48137e+00 1410 2010 9 2.92760e+01 1.63896e+00 2739 2010 10 2.46474e+01 1.00788e+00 4188 2010 11 2.02375e+01 1.45311e+00 2730 2010 12 1.42195e+01 3.00739e+00 2020 2011 1 1.15478e+01 8.88476e-01 1523 2011 2 1.45368e+01 2.24721e+00 698 2011 3 1.91837e+01 1.46582e+00 2320 2011 4 2.37127e+01 1.40287e+00 3719 2011 5 2.59694e+01 1.38798e+00 4284 2011 6 2.94839e+01 1.41126e+00 2257 2011 7 2.97183e+01 1.29471e+00 2043 2011 8 3.06592e+01 1.12389e+00 2784 2011 9 2.84609e+01 1.05716e+00 2575 2011 10 2.39446e+01 1.96293e+00 2624 2011 11 1.91584e+01 1.00482e+00 2315 2011 12 1.63790e+01 8.37551e-01 1506 2012 1 1.54208e+01 1.47085e+00 1977 2012 2 1.66553e+01 1.98549e+00 507 2012 3 2.13373e+01 2.02428e+00 2959 2012 4 2.35277e+01 1.03602e+00 3459 2012 5 2.67709e+01 1.04133e+00 3266 2012 6 2.74786e+01 1.12898e+00 2077 2012 7 2.93642e+01 1.86037e+00 2568 2012 8 2.92921e+01 1.29235e+00 2002 2012 9 2.82337e+01 1.27954e+00 2367 2012 10 2.44646e+01 2.44731e+00 2715 2012 11 1.86751e+01 1.07494e+00 2419 2012 12 1.73826e+01 1.73867e+00 1917 2013 1 1.56247e+01 1.19267e+00 1065 2013 2 1.61711e+01 1.42933e+00 1674 2013 3 1.61984e+01 1.34228e+00 2807 2013 4 2.11518e+01 2.09639e+00 2304 2013 5 2.45632e+01 2.04719e+00 2933 2013 6 2.84905e+01 1.63097e+00 2647 2013 7 2.90370e+01 1.41471e+00 1253 2013 8 3.01050e+01 1.67283e+00 2459 2013 9 2.95299e+01 1.66304e+00 2522 2013 10 2.53787e+01 1.79673e+00 2711 2013 11 1.97171e+01 2.41696e+00 1587 2013 12 1.68670e+01 1.15162e+00 1019 2014 1 1.27579e+01 1.11839e+00 865 2014 2 1.48893e+01 2.49618e+00 1282 2014 3 1.74794e+01 1.36699e+00 2091 2014 4 2.12480e+01 1.91902e+00 1990 2014 5 2.51199e+01 1.67357e+00 2429 2014 6 2.86173e+01 1.62452e+00 2467 2014 7 3.04207e+01 1.34340e+00 1957 2014 8 2.97712e+01 1.22163e+00 2758 2014 9 2.84476e+01 1.41839e+00 1308 2014 10 2.53512e+01 1.88555e+00 3419 2014 11 1.77691e+01 2.16211e+00 1912 2014 12 1.63753e+01 1.18514e+00 1698 2015 1 1.50605e+01 1.47947e+00 2133 2015 2 1.37326e+01 1.18439e+00 1783 2015 3 1.95205e+01 1.76765e+00 1676 2015 4 2.33282e+01 1.69363e+00 1371 2015 5 2.67302e+01 1.79421e+00 4329 2015 6 2.99773e+01 1.39011e+00 2160 2015 7 2.95032e+01 1.49893e+00 1835 2015 8 3.00484e+01 1.45453e+00 2286 2015 9 2.75680e+01 1.48726e+00 1192 2015 10 2.40061e+01 1.46233e+00 2497 2015 11 2.27049e+01 2.87785e+00 2527 2015 12 1.87984e+01 1.08665e+00 966 2016 1 1.52055e+01 1.94678e+00 1419 2016 2 1.44725e+01 1.50038e+00 1404 2016 3 1.84079e+01 1.87834e+00 1088 2016 4 2.22352e+01 1.81744e+00 2170 2016 5 2.60548e+01 1.56153e+00 3223 2016 6 2.94476e+01 1.06991e+00 2759 2016 7 3.11640e+01 1.20721e+00 2820 2016 8 3.03127e+01 9.27780e-01 2119 2016 9 2.93733e+01 1.15854e+00 2620 2016 10 2.53125e+01 1.77254e+00 3133 2016 11 2.08821e+01 2.25945e+00 2658 2016 12 1.80232e+01 1.76107e+00 1751 2017 1 1.63146e+01 1.29135e+00 1582 2017 2 1.79201e+01 1.69751e+00 2186 2017 3 1.89865e+01 1.78751e+00 2687 2017 4 2.32915e+01 1.19641e+00 3168 2017 5 2.51673e+01 1.23625e+00 2612 2017 6 2.87638e+01 1.48943e+00 1397 2017 7 3.04864e+01 1.22780e+00 1690 2017 8 3.01289e+01 1.61093e+00 2018 2017 9 2.80945e+01 1.49552e+00 2756 2017 10 2.53587e+01 2.35598e+00 3107 2017 11 2.02177e+01 1.15933e+00 2912 2017 12 1.78233e+01 2.18400e+00 1377 2018 1 1.15268e+01 1.49208e+00 1312 2018 2 1.89354e+01 2.78973e+00 1298 2018 3 1.84721e+01 1.68457e+00 2887 2018 4 2.14775e+01 1.28262e+00 2620 2018 5 2.49518e+01 1.49574e+00 2204 2018 6 2.90950e+01 1.80871e+00 2263 2018 7 2.98989e+01 1.67665e+00 1729 2018 8 3.01649e+01 1.35042e+00 1782 2018 9 3.03928e+01 1.15443e+00 3181 2018 10 2.70379e+01 2.23272e+00 3193 2018 11 1.99170e+01 2.20458e+00 1519 2018 12 1.58506e+01 1.77462e+00 1340 2019 1 1.58903e+01 1.55364e+00 1406 2019 2 1.85903e+01 2.52877e+00 1052 2019 3 1.88608e+01 1.55972e+00 2444 2019 4 2.22895e+01 1.69522e+00 2072 2019 5 2.74545e+01 1.89948e+00 3258 2019 6 2.92734e+01 1.24632e+00 1937 2019 7 2.97469e+01 1.28880e+00 1263 2019 8 2.99816e+01 1.11713e+00 1895 2019 9 2.90663e+01 1.04204e+00 3809 2019 10 2.65290e+01 1.79418e+00 2309 2019 11 1.93139e+01 2.53129e+00 2106 2019 12 1.70950e+01 1.29412e+00 1816 2020 1 1.63081e+01 1.48263e+00 2364 2020 2 1.57443e+01 1.05088e+00 1673 2020 3 2.10956e+01 3.28679e+00 2827 2020 4 2.41433e+01 6.91261e-01 1868 2020 5 2.48377e+01 1.41826e+00 3129 2020 6 2.94269e+01 1.27566e+00 2196 2020 7 3.01865e+01 1.03545e+00 1722 2020 8 3.14437e+01 1.25118e+00 1258 2020 9 2.84797e+01 2.03615e+00 1198 2020 10 2.57520e+01 8.59701e-01 2377 2020 11 2.17801e+01 1.92507e+00 2685 2020 12 1.53915e+01 1.61583e+00 2730 2021 1 1.45004e+01 1.26147e+00 1868 2021 2 1.66755e+01 2.19356e+00 1803 2021 3 1.88138e+01 1.59582e+00 2261 2021 4 2.20535e+01 1.58803e+00 2689 2021 5 2.54227e+01 1.41998e+00 2879 2021 6 2.82039e+01 1.26395e+00 1272 2021 7 2.95949e+01 1.33486e+00 1636 2021 8 3.00746e+01 1.35157e+00 1916 2021 9 2.86870e+01 1.27495e+00 2140 2021 10 2.63200e+01 1.63512e+00 2106 2021 11 1.92250e+01 1.41148e+00 2715 2021 12 1.79892e+01 1.17043e+00 2613 2022 1 1.61331e+01 2.05011e+00 2582 2022 2 1.62995e+01 2.53013e+00 2108 2022 3 1.92784e+01 1.29175e+00 2632 2022 4 2.32119e+01 1.10451e+00 2198 2022 5 2.67306e+01 1.23668e+00 2894 2022 6 2.98066e+01 1.07073e+00 2687 2022 7 3.10355e+01 1.07168e+00 2034 2022 8 3.09496e+01 1.27416e+00 1930 2022 9 2.87079e+01 1.62948e+00 1812 2022 10 2.35550e+01 1.40682e+00 3020 2022 11 2.17083e+01 2.19587e+00 1570 2022 12 1.78264e+01 2.64336e+00 2843 2023 1 1.49560e+01 9.68618e-01 2539 2023 2 1.70532e+01 1.28486e+00 1990 2023 3 2.06396e+01 1.64707e+00 3015 2023 4 2.32916e+01 9.26116e-01 2011 2023 5 2.56365e+01 1.64657e+00 2638 2023 6 2.76546e+01 1.23199e+00 2431 2023 7 3.05336e+01 1.34902e+00 3021 2023 8 3.11342e+01 1.01626e+00 3026 2023 9 2.93850e+01 1.23770e+00 2233 2023 10 2.39406e+01 1.36571e+00 2763 2023 11 2.07858e+01 1.53571e+00 2157 2023 12 1.49530e+01 1.62031e+00 1349 2024 1 1.37561e+01 1.09034e+00 1286 2024 2 1.57528e+01 8.33038e-01 2023 2024 3 2.03899e+01 1.20477e+00 1837 2024 4 2.20312e+01 5.58623e-01 192