YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 1.82560e+01 2.03149e-01 81 2000 3 2.06672e+01 1.46272e+00 658 2000 4 2.17626e+01 1.18066e+00 572 2000 5 2.55217e+01 2.01635e+00 708 2000 6 2.76689e+01 8.69883e-01 416 2000 7 2.87548e+01 1.25103e+00 427 2000 8 2.95047e+01 6.24476e-01 267 2000 9 2.78579e+01 1.16048e+00 202 2000 10 2.30080e+01 1.91503e+00 717 2000 11 2.23379e+01 1.20108e+00 293 2000 12 1.48493e+01 5.53465e-01 27 2001 1 1.24045e+01 9.38878e-02 64 2001 2 1.73908e+01 2.34433e+00 420 2001 3 1.57389e+01 3.36890e-01 324 2001 4 2.20606e+01 2.13568e+00 703 2001 5 2.57551e+01 1.13027e+00 642 2001 6 2.78896e+01 7.93463e-01 224 2001 7 2.93710e+01 7.28595e-01 116 2001 8 2.94794e+01 8.46606e-01 427 2001 9 2.68376e+01 1.49523e+00 411 2001 10 2.18034e+01 2.06520e+00 383 2001 11 1.96439e+01 1.02606e+00 708 2001 12 1.86362e+01 2.76836e+00 374 2002 1 1.77746e+01 3.62193e-01 38 2002 2 1.65714e+01 2.01835e+00 310 2002 3 1.99319e+01 1.64814e+00 133 2002 4 2.49830e+01 2.25982e+00 509 2002 5 2.63008e+01 1.80061e+00 605 2002 6 2.85076e+01 7.10172e-01 392 2002 7 2.95543e+01 1.21758e+00 1355 2002 8 2.89225e+01 1.16815e+00 1719 2002 9 2.81933e+01 1.41964e+00 1627 2002 10 2.67213e+01 2.02350e+00 2551 2002 11 2.04816e+01 2.55400e+00 1569 2002 12 1.43253e+01 1.12641e+00 1030 2003 1 1.17426e+01 1.46122e+00 1462 2003 2 1.49149e+01 1.95112e+00 871 2003 3 2.08410e+01 1.83554e+00 1426 2003 4 2.18809e+01 2.02107e+00 2448 2003 5 2.69293e+01 1.41958e+00 2537 2003 6 2.86312e+01 1.45077e+00 1600 2003 7 2.94010e+01 1.58864e+00 1338 2003 8 2.87055e+01 1.25296e+00 1959 2003 9 2.78114e+01 9.97446e-01 1904 2003 10 2.38411e+01 1.13110e+00 2241 2003 11 2.17262e+01 1.89877e+00 2316 2003 12 1.42052e+01 1.39320e+00 753 2004 1 1.32221e+01 1.33743e+00 1329 2004 2 1.32625e+01 8.97126e-01 470 2004 3 1.90523e+01 1.80382e+00 2447 2004 4 2.06891e+01 2.06050e+00 2224 2004 5 2.66780e+01 1.75990e+00 3467 2004 6 2.96430e+01 1.15156e+00 2124 2004 7 3.00818e+01 1.57470e+00 2009 2004 8 2.96220e+01 1.56878e+00 2119 2004 9 2.69031e+01 1.78204e+00 1815 2004 10 2.45187e+01 1.49849e+00 2354 2004 11 2.13527e+01 2.83397e+00 1634 2004 12 1.68867e+01 2.03562e+00 1196 2005 1 1.46294e+01 2.41408e+00 673 2005 2 1.47177e+01 1.24355e+00 993 2005 3 1.68107e+01 2.00116e+00 1771 2005 4 2.06975e+01 8.97770e-01 2509 2005 5 2.53262e+01 2.21307e+00 2779 2005 6 2.85614e+01 1.60668e+00 1957 2005 7 3.05826e+01 1.72736e+00 1961 2005 8 2.97036e+01 2.27885e+00 1814 2005 9 2.80310e+01 1.43294e+00 2478 2005 10 2.49386e+01 3.01297e+00 2216 2005 11 1.97272e+01 2.04984e+00 1618 2005 12 1.47562e+01 1.91982e+00 1123 2006 1 1.52534e+01 1.53809e+00 1446 2006 2 1.45549e+01 1.64772e+00 1664 2006 3 1.87909e+01 1.42131e+00 2750 2006 4 2.32933e+01 1.97664e+00 2788 2006 5 2.54953e+01 1.79251e+00 3253 2006 6 2.85007e+01 1.48484e+00 2670 2006 7 3.00299e+01 1.40185e+00 2379 2006 8 3.02512e+01 1.10233e+00 2153 2006 9 2.85068e+01 1.71797e+00 2462 2006 10 2.40170e+01 2.18180e+00 2445 2006 11 1.87985e+01 1.54906e+00 1417 2006 12 1.62700e+01 1.26940e+00 758 2007 1 1.49921e+01 1.55843e+00 913 2007 2 1.40296e+01 1.44211e+00 1145 2007 3 1.94880e+01 2.13910e+00 2834 2007 4 2.13403e+01 2.21856e+00 2334 2007 5 2.46356e+01 1.04784e+00 3166 2007 6 2.82944e+01 1.72740e+00 2283 2007 7 3.02431e+01 1.70993e+00 1676 2007 8 3.05624e+01 1.21170e+00 2331 2007 9 2.80445e+01 1.69797e+00 1945 2007 10 2.55951e+01 1.37323e+00 1724 2007 11 1.87620e+01 1.69333e+00 2534 2007 12 1.74630e+01 1.80404e+00 1495 2008 1 1.35869e+01 2.00895e+00 537 2008 2 1.65436e+01 1.81433e+00 1422 2008 3 1.80626e+01 1.99761e+00 2119 2008 4 2.22662e+01 1.46261e+00 2296 2008 5 2.51748e+01 1.64234e+00 2762 2008 6 2.93445e+01 1.30432e+00 2134 2008 7 2.97265e+01 1.25456e+00 2002 2008 8 2.82601e+01 1.91278e+00 1582 2008 9 2.72919e+01 1.90254e+00 2111 2008 10 2.32101e+01 2.45277e+00 2461 2008 11 1.69505e+01 2.46534e+00 1799 2008 12 1.54785e+01 1.44394e+00 1228 2009 1 1.45533e+01 2.56208e+00 1381 2009 2 1.41969e+01 1.74155e+00 1492 2009 3 1.84831e+01 2.86834e+00 1762 2009 4 2.22386e+01 1.67025e+00 2318 2009 5 2.64648e+01 1.55314e+00 2406 2009 6 2.93020e+01 1.31272e+00 2343 2009 7 2.91529e+01 1.18634e+00 2186 2009 8 2.93860e+01 1.76206e+00 2164 2009 9 2.85619e+01 1.09660e+00 2208 2009 10 2.59361e+01 2.88011e+00 2324 2009 11 1.92467e+01 1.49206e+00 1601 2009 12 1.39886e+01 2.23780e+00 545 2010 1 1.23852e+01 3.07622e+00 869 2010 2 1.18933e+01 1.29314e+00 1589 2010 3 1.58211e+01 2.17131e+00 1941 2010 4 2.19283e+01 1.67313e+00 2149 2010 5 2.69916e+01 2.15395e+00 3420 2010 6 3.05664e+01 1.41965e+00 2660 2010 7 3.00027e+01 1.52425e+00 2686 2010 8 3.01029e+01 1.36947e+00 1329 2010 9 2.86917e+01 1.78626e+00 2295 2010 10 2.43053e+01 1.18567e+00 3867 2010 11 1.93282e+01 1.54215e+00 2213 2010 12 1.38687e+01 2.92476e+00 960 2011 1 1.15001e+01 1.28243e+00 1102 2011 2 1.51884e+01 2.62306e+00 1075 2011 3 1.97251e+01 1.65330e+00 2355 2011 4 2.38481e+01 1.77045e+00 3560 2011 5 2.61908e+01 1.76776e+00 3947 2011 6 2.96725e+01 1.34722e+00 2524 2011 7 2.96717e+01 8.91427e-01 1883 2011 8 3.04875e+01 1.31726e+00 2713 2011 9 2.80603e+01 1.18147e+00 2647 2011 10 2.28938e+01 1.86762e+00 2174 2011 11 1.84503e+01 1.19991e+00 1980 2011 12 1.60082e+01 9.22042e-01 1122 2012 1 1.52719e+01 1.83910e+00 1806 2012 2 1.65209e+01 2.27451e+00 475 2012 3 2.19495e+01 2.18420e+00 2630 2012 4 2.35443e+01 1.32015e+00 3217 2012 5 2.73157e+01 9.59665e-01 3269 2012 6 2.75403e+01 1.49705e+00 1904 2012 7 2.97215e+01 1.78504e+00 2034 2012 8 2.90956e+01 1.52854e+00 1680 2012 9 2.81237e+01 1.56609e+00 1919 2012 10 2.47086e+01 2.35305e+00 2493 2012 11 1.78911e+01 1.20650e+00 2285 2012 12 1.66789e+01 1.75831e+00 1337 2013 1 1.54550e+01 1.85899e+00 1184 2013 2 1.63781e+01 1.66817e+00 1739 2013 3 1.60025e+01 1.62811e+00 2546 2013 4 2.12850e+01 1.98686e+00 2287 2013 5 2.53123e+01 2.29344e+00 2482 2013 6 2.86303e+01 1.47123e+00 2755 2013 7 2.83809e+01 1.54438e+00 1243 2013 8 3.02937e+01 1.87563e+00 2119 2013 9 2.93330e+01 1.65394e+00 2421 2013 10 2.48941e+01 2.13833e+00 2415 2013 11 1.94148e+01 2.51868e+00 1364 2013 12 1.67732e+01 1.77380e+00 838 2014 1 1.27355e+01 8.60167e-01 862 2014 2 1.48180e+01 2.44840e+00 1244 2014 3 1.73302e+01 1.68132e+00 2056 2014 4 2.14998e+01 2.08502e+00 2023 2014 5 2.57211e+01 1.39919e+00 2632 2014 6 2.88890e+01 1.80762e+00 1994 2014 7 3.02272e+01 1.43178e+00 1978 2014 8 3.01120e+01 1.23366e+00 2608 2014 9 2.84103e+01 1.47294e+00 1107 2014 10 2.50158e+01 1.69077e+00 3191 2014 11 1.70418e+01 2.24537e+00 1596 2014 12 1.60328e+01 1.35103e+00 1410 2015 1 1.43441e+01 1.04824e+00 1530 2015 2 1.32057e+01 1.51738e+00 1395 2015 3 1.96294e+01 2.47490e+00 1600 2015 4 2.37075e+01 1.89005e+00 1105 2015 5 2.69219e+01 2.01529e+00 3798 2015 6 3.00938e+01 1.23321e+00 2346 2015 7 2.96780e+01 1.44084e+00 1754 2015 8 3.01901e+01 1.83878e+00 1947 2015 9 2.73659e+01 2.00573e+00 1026 2015 10 2.41529e+01 1.44978e+00 2191 2015 11 2.26908e+01 3.32785e+00 1704 2015 12 1.80971e+01 2.09199e+00 842 2016 1 1.40140e+01 1.58363e+00 1070 2016 2 1.42434e+01 1.83077e+00 1391 2016 3 1.88240e+01 2.43193e+00 1753 2016 4 2.23684e+01 1.94467e+00 2160 2016 5 2.61454e+01 1.83924e+00 3057 2016 6 2.96705e+01 1.38444e+00 2926 2016 7 3.14011e+01 1.12509e+00 2996 2016 8 3.03354e+01 1.37731e+00 2123 2016 9 2.91638e+01 1.26569e+00 2449 2016 10 2.49790e+01 1.74611e+00 2479 2016 11 1.97640e+01 2.48176e+00 2617 2016 12 1.77021e+01 1.88529e+00 1314 2017 1 1.66123e+01 2.02964e+00 1232 2017 2 1.82061e+01 1.78729e+00 2006 2017 3 1.92660e+01 2.57711e+00 2375 2017 4 2.35657e+01 1.62636e+00 2621 2017 5 2.52964e+01 1.77639e+00 2218 2017 6 2.84849e+01 2.00466e+00 1738 2017 7 3.05703e+01 1.45129e+00 1088 2017 8 2.98480e+01 1.57949e+00 1945 2017 9 2.79292e+01 1.60453e+00 2216 2017 10 2.49502e+01 2.68171e+00 2511 2017 11 1.98343e+01 1.44369e+00 2622 2017 12 1.72315e+01 2.68143e+00 1143 2018 1 1.16215e+01 1.70643e+00 1224 2018 2 2.03981e+01 3.49409e+00 1294 2018 3 1.83084e+01 1.85555e+00 2300 2018 4 2.14555e+01 1.51674e+00 2336 2018 5 2.54855e+01 1.83524e+00 2148 2018 6 2.96556e+01 1.85427e+00 2023 2018 7 3.00297e+01 1.43629e+00 1572 2018 8 2.99702e+01 1.49016e+00 1686 2018 9 3.03677e+01 1.29895e+00 2760 2018 10 2.64709e+01 2.51970e+00 2466 2018 11 1.88527e+01 2.47100e+00 785 2018 12 1.54026e+01 2.04587e+00 1157 2019 1 1.49646e+01 2.09821e+00 1403 2019 2 1.84888e+01 2.74468e+00 1164 2019 3 1.87937e+01 1.81949e+00 1999 2019 4 2.25375e+01 2.04402e+00 2090 2019 5 2.80843e+01 1.93282e+00 3190 2019 6 2.92846e+01 1.42140e+00 1889 2019 7 2.97084e+01 1.87392e+00 1456 2019 8 3.02348e+01 1.06595e+00 2008 2019 9 2.90437e+01 1.31753e+00 2989 2019 10 2.58971e+01 1.83781e+00 2044 2019 11 1.83963e+01 2.22059e+00 1979 2019 12 1.66440e+01 1.47729e+00 1818 2020 1 1.57429e+01 1.61916e+00 1957 2020 2 1.55592e+01 1.35340e+00 2015 2020 3 2.14383e+01 3.70929e+00 2584 2020 4 2.39988e+01 9.76462e-01 2055 2020 5 2.51389e+01 1.64334e+00 2991 2020 6 2.96390e+01 1.50907e+00 2082 2020 7 2.98445e+01 1.53421e+00 1857 2020 8 3.12022e+01 1.14328e+00 1328 2020 9 2.79414e+01 2.15420e+00 1494 2020 10 2.55480e+01 1.17854e+00 2234 2020 11 2.10384e+01 1.96856e+00 2675 2020 12 1.43999e+01 1.47125e+00 2386 2021 1 1.44233e+01 1.86077e+00 1787 2021 2 1.65363e+01 2.13325e+00 1701 2021 3 1.89765e+01 1.98567e+00 1983 2021 4 2.20112e+01 1.80469e+00 2473 2021 5 2.56396e+01 1.60589e+00 2420 2021 6 2.82701e+01 1.58144e+00 1075 2021 7 2.96254e+01 1.08123e+00 1254 2021 8 3.00952e+01 1.47616e+00 1836 2021 9 2.86785e+01 1.17044e+00 2078 2021 10 2.58778e+01 1.96914e+00 2051 2021 11 1.83504e+01 1.50198e+00 2535 2021 12 1.78763e+01 1.57812e+00 2273 2022 1 1.55851e+01 2.64435e+00 2597 2022 2 1.63071e+01 2.90019e+00 2328 2022 3 1.97503e+01 1.32092e+00 2512 2022 4 2.32707e+01 1.43788e+00 1727 2022 5 2.69865e+01 1.45690e+00 2708 2022 6 2.97975e+01 1.10225e+00 2365 2022 7 3.07160e+01 1.30679e+00 2133 2022 8 3.08380e+01 1.25467e+00 1978 2022 9 2.78972e+01 1.83871e+00 1627 2022 10 2.28339e+01 1.68682e+00 3209 2022 11 2.14306e+01 2.41042e+00 1648 2022 12 1.77292e+01 3.27018e+00 2708 2023 1 1.50122e+01 1.25760e+00 2571 2023 2 1.73119e+01 1.75414e+00 2109 2023 3 2.05270e+01 2.31302e+00 2877 2023 4 2.33079e+01 1.38032e+00 2059 2023 5 2.57515e+01 2.15109e+00 2475 2023 6 2.76499e+01 1.61544e+00 2044 2023 7 3.08284e+01 1.32321e+00 2922 2023 8 3.12024e+01 9.77400e-01 2720 2023 9 2.92246e+01 1.49394e+00 2383 2023 10 2.32267e+01 1.38315e+00 2354 2023 11 1.99622e+01 1.77786e+00 1828 2023 12 1.41677e+01 1.29287e+00 1268 2024 1 1.36998e+01 1.50516e+00 1292 2024 2 1.58615e+01 1.02208e+00 2017 2024 3 2.03967e+01 1.28450e+00 1717 2024 4 2.26035e+01 5.30539e-01 202