YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 1.90120e+01 3.66234e-01 86 2000 3 2.10522e+01 1.32687e+00 558 2000 4 2.17571e+01 1.31183e+00 550 2000 5 2.61002e+01 1.75213e+00 509 2000 6 2.78470e+01 1.58178e+00 456 2000 7 2.83850e+01 1.62942e+00 423 2000 8 2.99593e+01 6.76969e-01 200 2000 9 2.65352e+01 1.60649e+00 223 2000 10 2.33056e+01 2.00243e+00 617 2000 11 2.24685e+01 1.28549e+00 282 2000 12 1.93966e+01 1.27190e-01 48 2001 1 nan nan 0 2001 2 1.78308e+01 2.24841e+00 429 2001 3 1.62168e+01 1.52575e+00 332 2001 4 2.15859e+01 2.04294e+00 686 2001 5 2.57376e+01 1.07785e+00 534 2001 6 2.72861e+01 1.48314e+00 128 2001 7 2.92022e+01 7.64529e-01 255 2001 8 2.95099e+01 1.88049e+00 365 2001 9 2.68337e+01 1.95244e+00 276 2001 10 2.21321e+01 2.64806e+00 284 2001 11 1.95914e+01 1.27535e+00 566 2001 12 1.83760e+01 2.77611e+00 581 2002 1 1.80745e+01 1.22442e+00 81 2002 2 1.63122e+01 2.79451e+00 370 2002 3 2.05244e+01 1.57353e+00 309 2002 4 2.38331e+01 2.39032e+00 416 2002 5 2.60052e+01 2.16243e+00 693 2002 6 2.82542e+01 1.23964e+00 478 2002 7 2.92855e+01 1.58317e+00 1417 2002 8 2.86364e+01 1.48504e+00 1681 2002 9 2.87234e+01 1.25067e+00 1389 2002 10 2.69245e+01 2.11747e+00 2318 2002 11 2.00199e+01 2.58338e+00 1314 2002 12 1.43907e+01 8.71755e-01 264 2003 1 1.15901e+01 1.81032e+00 825 2003 2 1.49410e+01 1.92520e+00 1096 2003 3 2.08347e+01 2.09367e+00 1372 2003 4 2.19480e+01 2.14210e+00 2533 2003 5 2.74440e+01 1.66237e+00 2475 2003 6 2.84310e+01 1.71567e+00 1428 2003 7 2.94613e+01 1.96563e+00 1292 2003 8 2.84864e+01 1.36404e+00 1795 2003 9 2.74574e+01 1.25223e+00 1690 2003 10 2.41093e+01 1.40594e+00 2645 2003 11 2.16375e+01 2.19620e+00 2663 2003 12 1.38978e+01 1.18946e+00 280 2004 1 1.40495e+01 1.57553e+00 1216 2004 2 1.40605e+01 1.54967e+00 546 2004 3 1.90834e+01 1.84930e+00 2253 2004 4 2.06261e+01 2.41561e+00 2495 2004 5 2.65085e+01 1.85214e+00 3346 2004 6 3.02111e+01 1.30744e+00 1669 2004 7 3.02477e+01 1.68187e+00 2057 2004 8 2.96101e+01 1.51416e+00 2043 2004 9 2.68348e+01 2.12581e+00 1691 2004 10 2.44437e+01 1.96166e+00 2176 2004 11 2.12575e+01 2.72974e+00 2008 2004 12 1.69205e+01 1.28611e+00 798 2005 1 1.45605e+01 2.36824e+00 926 2005 2 1.52980e+01 1.75045e+00 1242 2005 3 1.71725e+01 2.34203e+00 1568 2005 4 2.05224e+01 1.25388e+00 2594 2005 5 2.55206e+01 2.09837e+00 2842 2005 6 2.83943e+01 1.85191e+00 1764 2005 7 3.05979e+01 1.96266e+00 2041 2005 8 3.09367e+01 1.97800e+00 2156 2005 9 2.78228e+01 1.53740e+00 2654 2005 10 2.58534e+01 2.08297e+00 1861 2005 11 2.03992e+01 1.84362e+00 1671 2005 12 1.50530e+01 1.52436e+00 970 2006 1 1.52440e+01 2.20918e+00 1485 2006 2 1.47151e+01 1.70314e+00 1282 2006 3 1.89091e+01 1.92553e+00 2712 2006 4 2.32432e+01 2.40957e+00 2891 2006 5 2.55710e+01 2.19239e+00 2962 2006 6 2.83153e+01 1.45230e+00 2685 2006 7 3.01027e+01 1.44835e+00 2374 2006 8 3.01121e+01 1.34654e+00 2293 2006 9 2.85996e+01 1.78262e+00 2541 2006 10 2.39264e+01 2.43304e+00 2331 2006 11 1.90039e+01 1.69471e+00 1117 2006 12 1.59856e+01 1.48168e+00 730 2007 1 1.54618e+01 2.11209e+00 1002 2007 2 1.43660e+01 1.97681e+00 1291 2007 3 1.92131e+01 2.31934e+00 2598 2007 4 2.11881e+01 2.25488e+00 2264 2007 5 2.43831e+01 1.51981e+00 2746 2007 6 2.81723e+01 1.63267e+00 1894 2007 7 3.01896e+01 1.95773e+00 1908 2007 8 3.05722e+01 1.09716e+00 1860 2007 9 2.78953e+01 1.34767e+00 1652 2007 10 2.60207e+01 1.29054e+00 1465 2007 11 1.84588e+01 1.71655e+00 2262 2007 12 1.77680e+01 2.13262e+00 1553 2008 1 1.40968e+01 2.34278e+00 557 2008 2 1.67767e+01 1.84840e+00 1497 2008 3 1.78783e+01 2.16548e+00 2097 2008 4 2.19821e+01 1.96130e+00 2063 2008 5 2.51617e+01 1.52718e+00 2453 2008 6 2.90386e+01 1.57571e+00 2310 2008 7 2.98191e+01 1.68380e+00 1805 2008 8 2.83943e+01 2.06438e+00 1746 2008 9 2.73089e+01 2.31098e+00 2228 2008 10 2.30613e+01 2.82868e+00 2523 2008 11 1.66965e+01 2.89376e+00 1983 2008 12 1.62362e+01 1.87095e+00 1807 2009 1 1.56036e+01 2.12024e+00 1492 2009 2 1.43787e+01 2.39276e+00 1597 2009 3 1.81497e+01 3.17490e+00 2300 2009 4 2.18597e+01 2.23438e+00 2037 2009 5 2.63318e+01 1.61336e+00 2328 2009 6 2.93864e+01 1.59647e+00 2089 2009 7 2.93275e+01 1.63215e+00 1850 2009 8 2.96363e+01 1.97978e+00 2267 2009 9 2.88094e+01 1.28145e+00 1939 2009 10 2.61246e+01 2.80479e+00 2534 2009 11 1.91557e+01 1.98509e+00 1486 2009 12 1.44877e+01 2.64167e+00 364 2010 1 1.29662e+01 2.87453e+00 685 2010 2 1.19229e+01 1.84808e+00 1599 2010 3 1.56686e+01 2.63217e+00 1779 2010 4 2.16873e+01 1.82583e+00 1934 2010 5 2.72860e+01 1.92587e+00 3026 2010 6 3.04157e+01 1.29112e+00 2735 2010 7 2.98142e+01 1.75087e+00 2844 2010 8 3.02018e+01 2.19570e+00 1226 2010 9 2.90645e+01 1.88175e+00 2506 2010 10 2.42960e+01 1.49727e+00 3641 2010 11 1.99058e+01 2.02828e+00 2298 2010 12 1.39114e+01 2.72657e+00 786 2011 1 1.17931e+01 1.63837e+00 1067 2011 2 1.61368e+01 3.31249e+00 1278 2011 3 2.01417e+01 2.08655e+00 2446 2011 4 2.39825e+01 1.95940e+00 3316 2011 5 2.63417e+01 2.05825e+00 3666 2011 6 2.96949e+01 1.48644e+00 2178 2011 7 2.98848e+01 1.49259e+00 1936 2011 8 3.02953e+01 1.58617e+00 2474 2011 9 2.82521e+01 1.15029e+00 2760 2011 10 2.26242e+01 2.41874e+00 2173 2011 11 1.89757e+01 1.89076e+00 1921 2011 12 1.62300e+01 1.61562e+00 1623 2012 1 1.54713e+01 2.05973e+00 1794 2012 2 1.66537e+01 2.65631e+00 654 2012 3 2.21980e+01 2.36664e+00 2533 2012 4 2.33031e+01 1.89851e+00 2764 2012 5 2.72528e+01 1.01077e+00 3034 2012 6 2.76494e+01 1.61360e+00 1662 2012 7 2.98983e+01 2.00763e+00 2308 2012 8 2.91759e+01 1.75026e+00 1839 2012 9 2.82168e+01 1.52337e+00 2213 2012 10 2.42339e+01 2.36376e+00 2254 2012 11 1.76518e+01 1.40623e+00 1983 2012 12 1.72363e+01 2.14291e+00 1485 2013 1 1.65377e+01 2.10297e+00 1383 2013 2 1.59481e+01 2.02263e+00 1477 2013 3 1.61187e+01 2.13210e+00 2400 2013 4 2.13364e+01 2.44661e+00 2126 2013 5 2.51302e+01 2.42073e+00 2779 2013 6 2.88060e+01 1.78134e+00 2002 2013 7 2.80821e+01 2.01837e+00 1101 2013 8 2.99904e+01 1.95572e+00 2154 2013 9 2.91518e+01 2.05987e+00 2094 2013 10 2.45403e+01 2.63241e+00 2236 2013 11 2.00183e+01 2.26485e+00 882 2013 12 1.76304e+01 1.98092e+00 1160 2014 1 1.31755e+01 1.69009e+00 700 2014 2 1.54942e+01 2.12553e+00 1106 2014 3 1.77985e+01 1.67276e+00 1878 2014 4 2.18379e+01 2.33262e+00 2064 2014 5 2.52294e+01 2.02785e+00 2210 2014 6 2.90627e+01 1.64138e+00 2004 2014 7 3.02434e+01 1.73833e+00 1858 2014 8 2.98040e+01 1.54207e+00 2253 2014 9 2.79011e+01 1.72304e+00 1049 2014 10 2.49625e+01 2.17067e+00 3101 2014 11 1.72162e+01 2.04061e+00 1253 2014 12 1.64805e+01 1.78903e+00 1681 2015 1 1.43036e+01 1.73223e+00 1557 2015 2 1.34193e+01 1.90305e+00 1533 2015 3 1.98182e+01 2.53694e+00 1745 2015 4 2.38025e+01 1.97084e+00 1209 2015 5 2.68679e+01 2.26500e+00 3545 2015 6 3.02215e+01 1.72811e+00 2267 2015 7 2.89703e+01 1.63304e+00 1627 2015 8 3.02040e+01 1.68646e+00 2035 2015 9 2.73556e+01 1.91702e+00 1359 2015 10 2.39213e+01 1.65998e+00 1774 2015 11 2.24901e+01 3.64479e+00 1982 2015 12 1.85402e+01 2.47263e+00 919 2016 1 1.38081e+01 1.62879e+00 1122 2016 2 1.46046e+01 2.06929e+00 1624 2016 3 1.90594e+01 2.18741e+00 1252 2016 4 2.24477e+01 2.18165e+00 2068 2016 5 2.63326e+01 2.06990e+00 2647 2016 6 2.98616e+01 1.83466e+00 2689 2016 7 3.16304e+01 1.34383e+00 2736 2016 8 3.03112e+01 1.08052e+00 1839 2016 9 2.93811e+01 1.30775e+00 2590 2016 10 2.44538e+01 1.87983e+00 2565 2016 11 1.98648e+01 2.66945e+00 2234 2016 12 1.84694e+01 2.01708e+00 1709 2017 1 1.59959e+01 2.49255e+00 1666 2017 2 1.81324e+01 2.09922e+00 2203 2017 3 1.93002e+01 2.88894e+00 2722 2017 4 2.34833e+01 2.08304e+00 2521 2017 5 2.53204e+01 2.07086e+00 2407 2017 6 2.91537e+01 2.00301e+00 1423 2017 7 2.99678e+01 1.83440e+00 1586 2017 8 3.01696e+01 1.72558e+00 2071 2017 9 2.82100e+01 1.67800e+00 2138 2017 10 2.46186e+01 3.35403e+00 2611 2017 11 1.97802e+01 1.39508e+00 2433 2017 12 1.77193e+01 3.08946e+00 1166 2018 1 1.13998e+01 1.67610e+00 906 2018 2 2.02348e+01 3.69592e+00 1694 2018 3 1.82671e+01 2.53959e+00 2448 2018 4 2.18073e+01 1.37609e+00 2506 2018 5 2.58420e+01 1.56925e+00 1772 2018 6 2.94856e+01 1.83804e+00 1863 2018 7 2.94522e+01 1.42353e+00 1635 2018 8 3.04228e+01 1.78220e+00 1676 2018 9 3.01539e+01 1.26447e+00 2861 2018 10 2.64929e+01 2.63934e+00 2287 2018 11 1.88916e+01 3.10819e+00 958 2018 12 1.60228e+01 1.84699e+00 1306 2019 1 1.50511e+01 2.49585e+00 1627 2019 2 1.88642e+01 3.10703e+00 1009 2019 3 1.93097e+01 1.81325e+00 2137 2019 4 2.27189e+01 1.90151e+00 2385 2019 5 2.81722e+01 1.84098e+00 3071 2019 6 2.93086e+01 1.35334e+00 2001 2019 7 2.96943e+01 1.65565e+00 1748 2019 8 3.02371e+01 1.30744e+00 1562 2019 9 2.90744e+01 1.49168e+00 3008 2019 10 2.59966e+01 1.76947e+00 2016 2019 11 1.88680e+01 2.38192e+00 2073 2019 12 1.65178e+01 1.94627e+00 1713 2020 1 1.63103e+01 2.30770e+00 2237 2020 2 1.58460e+01 2.00386e+00 1757 2020 3 2.29072e+01 3.61367e+00 2534 2020 4 2.38842e+01 1.26882e+00 1780 2020 5 2.48997e+01 1.98166e+00 3129 2020 6 2.96673e+01 1.76692e+00 1940 2020 7 3.01062e+01 1.23084e+00 1604 2020 8 3.14352e+01 1.23890e+00 1250 2020 9 2.84278e+01 2.54871e+00 1264 2020 10 2.57834e+01 1.31279e+00 2037 2020 11 2.07053e+01 2.25264e+00 2384 2020 12 1.45562e+01 1.61825e+00 2371 2021 1 1.51385e+01 2.24215e+00 1618 2021 2 1.71881e+01 2.86719e+00 1926 2021 3 1.97425e+01 2.31628e+00 2265 2021 4 2.27023e+01 2.25085e+00 2388 2021 5 2.58650e+01 1.90982e+00 2288 2021 6 2.84375e+01 1.60273e+00 1171 2021 7 2.99103e+01 1.40227e+00 1066 2021 8 2.98802e+01 1.49055e+00 1421 2021 9 2.85847e+01 1.61197e+00 1864 2021 10 2.61416e+01 1.97244e+00 2163 2021 11 1.78498e+01 1.67767e+00 2388 2021 12 1.83519e+01 1.89847e+00 2571 2022 1 1.52107e+01 3.01272e+00 2521 2022 2 1.67975e+01 3.47165e+00 2377 2022 3 2.01171e+01 1.55849e+00 2826 2022 4 2.33476e+01 2.03550e+00 1742 2022 5 2.70107e+01 1.58322e+00 2949 2022 6 2.95647e+01 1.33401e+00 2358 2022 7 3.08594e+01 1.37227e+00 2269 2022 8 3.07500e+01 1.47547e+00 1656 2022 9 2.83990e+01 2.29982e+00 1779 2022 10 2.31057e+01 2.26032e+00 2996 2022 11 2.13951e+01 2.55209e+00 1492 2022 12 1.82514e+01 3.15554e+00 2590 2023 1 1.54496e+01 1.85961e+00 2628 2023 2 1.77985e+01 2.05365e+00 1865 2023 3 2.08730e+01 2.56499e+00 2698 2023 4 2.37889e+01 1.56755e+00 1758 2023 5 2.57748e+01 2.24669e+00 2346 2023 6 2.83793e+01 1.75846e+00 2065 2023 7 3.11496e+01 1.54040e+00 2691 2023 8 3.09686e+01 1.32185e+00 2612 2023 9 2.90075e+01 1.56610e+00 2220 2023 10 2.31532e+01 1.83053e+00 2410 2023 11 2.01970e+01 2.14533e+00 1767 2023 12 1.47743e+01 1.48610e+00 1212 2024 1 1.43336e+01 1.63800e+00 1279 2024 2 1.61700e+01 1.54836e+00 1865 2024 3 2.07657e+01 1.59119e+00 1725 2024 4 2.20750e+01 6.23437e-01 198