YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 1.85768e+01 1.14243e-01 69 2000 3 2.11871e+01 1.37332e+00 736 2000 4 2.20569e+01 1.04262e+00 736 2000 5 2.59820e+01 1.74315e+00 797 2000 6 2.84848e+01 1.03232e+00 386 2000 7 2.84292e+01 1.79654e+00 373 2000 8 2.93225e+01 9.89960e-01 319 2000 9 2.71710e+01 1.46246e+00 345 2000 10 2.32010e+01 2.15882e+00 818 2000 11 2.11788e+01 2.60300e+00 458 2000 12 1.63453e+01 4.06532e-01 81 2001 1 1.22473e+01 6.28237e-02 64 2001 2 1.84187e+01 1.80065e+00 494 2001 3 1.66021e+01 1.37292e+00 448 2001 4 2.18060e+01 1.94719e+00 665 2001 5 2.56150e+01 1.07748e+00 685 2001 6 2.89603e+01 1.08111e+00 192 2001 7 2.89051e+01 1.11491e+00 133 2001 8 3.05051e+01 7.08993e-01 450 2001 9 2.70405e+01 1.83093e+00 323 2001 10 2.26507e+01 1.59736e+00 439 2001 11 1.97553e+01 9.96844e-01 823 2001 12 1.92053e+01 2.64876e+00 574 2002 1 1.82293e+01 6.32278e-01 154 2002 2 1.66130e+01 1.99041e+00 327 2002 3 2.01006e+01 1.56669e+00 233 2002 4 2.47593e+01 1.98073e+00 502 2002 5 2.62241e+01 1.80194e+00 780 2002 6 2.82272e+01 1.31590e+00 446 2002 7 2.95735e+01 1.07771e+00 1648 2002 8 2.87655e+01 1.24442e+00 1872 2002 9 2.89038e+01 1.04049e+00 1744 2002 10 2.71130e+01 1.87706e+00 2813 2002 11 2.01911e+01 2.70885e+00 1691 2002 12 1.45648e+01 1.08126e+00 699 2003 1 1.18508e+01 1.53807e+00 1417 2003 2 1.53314e+01 1.88308e+00 932 2003 3 2.12823e+01 2.07193e+00 1377 2003 4 2.17617e+01 2.48926e+00 2788 2003 5 2.75206e+01 1.70267e+00 2617 2003 6 2.80745e+01 1.92883e+00 1408 2003 7 2.93738e+01 1.85982e+00 1197 2003 8 2.86279e+01 1.33221e+00 2100 2003 9 2.79865e+01 1.40133e+00 1900 2003 10 2.43605e+01 1.41124e+00 2785 2003 11 2.16672e+01 2.06806e+00 2914 2003 12 1.43649e+01 1.38376e+00 911 2004 1 1.37098e+01 1.08115e+00 1618 2004 2 1.45411e+01 1.08200e+00 677 2004 3 1.90904e+01 1.78836e+00 2626 2004 4 2.06086e+01 1.91626e+00 2822 2004 5 2.64115e+01 1.79213e+00 3632 2004 6 3.03590e+01 1.03375e+00 2010 2004 7 3.01447e+01 1.72650e+00 2305 2004 8 2.98272e+01 1.44419e+00 2118 2004 9 2.71576e+01 2.22716e+00 1916 2004 10 2.48831e+01 2.09316e+00 2754 2004 11 2.16647e+01 2.54197e+00 2532 2004 12 1.64518e+01 2.09278e+00 1234 2005 1 1.40362e+01 2.00922e+00 1205 2005 2 1.55246e+01 1.35462e+00 1201 2005 3 1.74471e+01 2.22370e+00 1855 2005 4 2.06153e+01 1.17323e+00 2810 2005 5 2.52323e+01 2.08211e+00 3085 2005 6 2.84501e+01 1.81492e+00 1718 2005 7 3.04974e+01 1.96743e+00 2386 2005 8 3.05969e+01 2.09940e+00 2323 2005 9 2.79786e+01 1.37559e+00 2950 2005 10 2.50881e+01 3.04249e+00 2614 2005 11 1.99700e+01 2.06194e+00 2096 2005 12 1.53033e+01 2.00400e+00 1408 2006 1 1.53142e+01 1.67811e+00 1619 2006 2 1.47685e+01 1.64996e+00 1573 2006 3 1.90299e+01 1.56350e+00 2920 2006 4 2.30481e+01 2.39824e+00 3191 2006 5 2.54799e+01 1.84615e+00 3280 2006 6 2.83824e+01 1.21482e+00 3011 2006 7 3.00781e+01 1.33099e+00 2587 2006 8 3.04150e+01 1.37792e+00 2160 2006 9 2.85648e+01 1.65065e+00 2529 2006 10 2.45451e+01 2.10002e+00 2689 2006 11 1.94869e+01 1.43203e+00 1302 2006 12 1.67716e+01 1.28202e+00 785 2007 1 1.47762e+01 1.74350e+00 1096 2007 2 1.39736e+01 1.53097e+00 1308 2007 3 1.93952e+01 1.79331e+00 2963 2007 4 2.14219e+01 1.77970e+00 2540 2007 5 2.44863e+01 1.30807e+00 3491 2007 6 2.80174e+01 1.74342e+00 2214 2007 7 3.01323e+01 1.75474e+00 2046 2007 8 3.07865e+01 1.00991e+00 2625 2007 9 2.86692e+01 1.54693e+00 1910 2007 10 2.64348e+01 9.41857e-01 1681 2007 11 1.92002e+01 1.72927e+00 3177 2007 12 1.83279e+01 2.08770e+00 1933 2008 1 1.35667e+01 2.47715e+00 599 2008 2 1.73706e+01 1.67043e+00 1613 2008 3 1.81923e+01 1.82481e+00 2687 2008 4 2.24594e+01 1.62823e+00 2630 2008 5 2.54249e+01 1.59520e+00 2776 2008 6 2.91239e+01 1.31812e+00 2366 2008 7 3.00586e+01 1.56827e+00 1621 2008 8 2.85295e+01 1.85655e+00 1778 2008 9 2.75597e+01 1.99805e+00 2512 2008 10 2.33559e+01 2.62365e+00 3144 2008 11 1.71525e+01 2.47962e+00 2184 2008 12 1.61741e+01 1.57502e+00 1967 2009 1 1.50432e+01 2.36890e+00 1907 2009 2 1.45105e+01 1.86138e+00 1884 2009 3 1.82900e+01 2.99449e+00 2263 2009 4 2.22339e+01 2.10276e+00 2410 2009 5 2.64942e+01 1.49206e+00 2299 2009 6 2.93378e+01 1.46810e+00 2404 2009 7 2.94232e+01 1.37991e+00 1917 2009 8 2.99437e+01 1.67322e+00 2226 2009 9 2.87968e+01 1.26585e+00 2188 2009 10 2.57600e+01 2.94928e+00 3018 2009 11 1.96548e+01 1.65121e+00 1820 2009 12 1.44609e+01 2.35273e+00 499 2010 1 1.11679e+01 3.35017e+00 1206 2010 2 1.25097e+01 1.77603e+00 1668 2010 3 1.56688e+01 2.25931e+00 2123 2010 4 2.15473e+01 1.78227e+00 2444 2010 5 2.71214e+01 1.96993e+00 3209 2010 6 3.04827e+01 1.38765e+00 2702 2010 7 2.99716e+01 1.62901e+00 2881 2010 8 3.04094e+01 2.05996e+00 1462 2010 9 2.91532e+01 1.64747e+00 2541 2010 10 2.45450e+01 1.28661e+00 4209 2010 11 1.97982e+01 1.74517e+00 2723 2010 12 1.37289e+01 3.11695e+00 1407 2011 1 1.17242e+01 1.45244e+00 1372 2011 2 1.56067e+01 2.58845e+00 1105 2011 3 1.97633e+01 1.87026e+00 2090 2011 4 2.41203e+01 1.68042e+00 3583 2011 5 2.63228e+01 1.74571e+00 4301 2011 6 2.97198e+01 1.37721e+00 2498 2011 7 2.99420e+01 1.41036e+00 2023 2011 8 3.04797e+01 1.44742e+00 2670 2011 9 2.83013e+01 1.15883e+00 2974 2011 10 2.31875e+01 2.22491e+00 2476 2011 11 1.91582e+01 1.35154e+00 1994 2011 12 1.67235e+01 1.11772e+00 1684 2012 1 1.54439e+01 2.04267e+00 1776 2012 2 1.70179e+01 2.40524e+00 668 2012 3 2.19047e+01 2.43040e+00 2909 2012 4 2.36461e+01 1.46697e+00 3535 2012 5 2.71250e+01 1.08872e+00 3175 2012 6 2.77112e+01 1.32510e+00 1711 2012 7 2.97933e+01 1.84906e+00 2570 2012 8 2.94976e+01 1.61977e+00 1685 2012 9 2.83494e+01 1.53163e+00 2372 2012 10 2.44456e+01 2.56663e+00 2428 2012 11 1.82324e+01 1.18669e+00 2207 2012 12 1.71115e+01 2.20084e+00 1752 2013 1 1.63065e+01 1.40761e+00 1321 2013 2 1.61644e+01 1.73357e+00 1935 2013 3 1.64190e+01 1.78508e+00 2832 2013 4 2.16653e+01 2.21769e+00 2199 2013 5 2.49904e+01 2.27650e+00 2860 2013 6 2.89031e+01 1.73150e+00 2412 2013 7 2.88478e+01 2.06372e+00 1245 2013 8 2.99901e+01 1.87633e+00 2052 2013 9 2.93961e+01 2.09313e+00 2494 2013 10 2.50834e+01 2.11785e+00 2761 2013 11 1.97155e+01 2.47477e+00 1386 2013 12 1.71684e+01 1.89472e+00 1250 2014 1 1.38133e+01 1.55972e+00 919 2014 2 1.59095e+01 2.25963e+00 1110 2014 3 1.80183e+01 2.02712e+00 2384 2014 4 2.16230e+01 2.29044e+00 1888 2014 5 2.54871e+01 1.75051e+00 2248 2014 6 2.88919e+01 1.89233e+00 2094 2014 7 3.05363e+01 1.82838e+00 1808 2014 8 2.97210e+01 1.48458e+00 2558 2014 9 2.83321e+01 1.72501e+00 1423 2014 10 2.52846e+01 2.18647e+00 3563 2014 11 1.74609e+01 2.01710e+00 1730 2014 12 1.68379e+01 1.46134e+00 1676 2015 1 1.48051e+01 1.57711e+00 1576 2015 2 1.39241e+01 1.60148e+00 1784 2015 3 2.00945e+01 2.31095e+00 2079 2015 4 2.39676e+01 1.78649e+00 1393 2015 5 2.69793e+01 2.14679e+00 3760 2015 6 3.02798e+01 1.51641e+00 2315 2015 7 2.94974e+01 1.78028e+00 1621 2015 8 2.98784e+01 1.75413e+00 2291 2015 9 2.75579e+01 1.31981e+00 1264 2015 10 2.43178e+01 1.56636e+00 2190 2015 11 2.30542e+01 3.05147e+00 2221 2015 12 1.85022e+01 1.80716e+00 986 2016 1 1.45816e+01 1.80878e+00 1379 2016 2 1.48687e+01 2.04370e+00 1734 2016 3 1.93413e+01 2.33034e+00 1266 2016 4 2.25524e+01 2.20089e+00 2437 2016 5 2.64257e+01 1.76136e+00 2933 2016 6 2.98843e+01 1.49008e+00 3031 2016 7 3.14227e+01 1.39144e+00 3153 2016 8 3.01895e+01 1.31363e+00 2170 2016 9 2.93295e+01 1.54169e+00 2792 2016 10 2.47284e+01 1.71463e+00 2744 2016 11 2.06134e+01 2.38674e+00 2470 2016 12 1.85205e+01 1.76945e+00 1986 2017 1 1.62073e+01 1.70396e+00 1289 2017 2 1.86976e+01 1.74276e+00 2064 2017 3 1.91395e+01 2.50308e+00 2892 2017 4 2.36124e+01 1.49867e+00 3035 2017 5 2.54365e+01 1.85194e+00 2707 2017 6 2.88144e+01 1.85189e+00 1700 2017 7 3.02353e+01 1.81565e+00 1529 2017 8 3.01297e+01 1.75012e+00 2277 2017 9 2.84921e+01 1.73313e+00 2353 2017 10 2.49843e+01 2.96627e+00 2707 2017 11 2.01464e+01 1.34575e+00 2821 2017 12 1.76477e+01 2.84370e+00 1564 2018 1 1.14556e+01 1.89361e+00 1125 2018 2 2.00851e+01 3.34050e+00 1679 2018 3 1.85538e+01 2.25455e+00 2935 2018 4 2.17874e+01 1.34151e+00 2671 2018 5 2.56940e+01 1.38592e+00 1797 2018 6 2.94341e+01 1.86782e+00 1962 2018 7 2.99171e+01 1.64844e+00 1344 2018 8 3.04146e+01 1.34337e+00 1831 2018 9 3.01947e+01 1.41575e+00 2980 2018 10 2.68516e+01 2.38252e+00 3021 2018 11 1.99944e+01 2.49599e+00 1375 2018 12 1.65516e+01 1.78170e+00 1364 2019 1 1.56115e+01 2.41036e+00 1801 2019 2 1.79374e+01 3.40014e+00 1242 2019 3 1.92558e+01 1.63343e+00 2432 2019 4 2.29243e+01 1.85333e+00 2251 2019 5 2.79408e+01 1.81554e+00 3273 2019 6 2.94904e+01 1.43436e+00 1950 2019 7 3.00061e+01 1.42271e+00 1597 2019 8 3.00068e+01 1.52077e+00 1777 2019 9 2.89927e+01 1.38438e+00 3300 2019 10 2.63130e+01 1.78725e+00 2251 2019 11 1.91184e+01 2.51835e+00 2119 2019 12 1.71345e+01 1.40537e+00 1741 2020 1 1.66732e+01 2.13706e+00 2510 2020 2 1.62613e+01 1.62305e+00 1732 2020 3 2.24793e+01 3.59495e+00 2569 2020 4 2.40767e+01 1.15190e+00 1925 2020 5 2.50507e+01 1.67069e+00 3192 2020 6 2.95788e+01 1.62769e+00 2106 2020 7 3.00269e+01 1.29859e+00 1990 2020 8 3.16162e+01 1.30165e+00 1202 2020 9 2.85291e+01 2.23353e+00 1503 2020 10 2.60337e+01 1.20909e+00 2410 2020 11 2.13075e+01 1.98755e+00 2653 2020 12 1.51398e+01 1.34652e+00 2634 2021 1 1.48379e+01 2.02506e+00 1736 2021 2 1.73530e+01 2.73548e+00 2042 2021 3 1.96492e+01 2.05685e+00 2195 2021 4 2.26466e+01 1.95879e+00 2665 2021 5 2.58120e+01 1.81658e+00 2868 2021 6 2.83717e+01 1.56577e+00 1305 2021 7 2.95680e+01 1.69497e+00 1733 2021 8 3.06812e+01 1.49885e+00 1478 2021 9 2.85101e+01 1.51435e+00 1840 2021 10 2.61919e+01 2.00003e+00 2338 2021 11 1.83302e+01 1.64355e+00 2856 2021 12 1.84149e+01 1.66443e+00 2720 2022 1 1.55687e+01 2.78251e+00 2520 2022 2 1.64085e+01 2.93432e+00 2362 2022 3 2.00399e+01 1.25387e+00 2902 2022 4 2.33316e+01 1.65451e+00 1919 2022 5 2.70667e+01 1.52837e+00 2989 2022 6 2.96033e+01 1.22379e+00 2518 2022 7 3.10043e+01 1.25528e+00 2104 2022 8 3.10576e+01 1.45869e+00 1923 2022 9 2.83856e+01 2.38346e+00 1968 2022 10 2.33502e+01 1.80422e+00 3217 2022 11 2.15471e+01 2.31704e+00 1628 2022 12 1.80792e+01 3.03881e+00 2994 2023 1 1.52217e+01 1.46456e+00 2507 2023 2 1.76518e+01 1.67408e+00 2228 2023 3 2.09725e+01 2.23740e+00 2759 2023 4 2.35673e+01 1.47630e+00 1929 2023 5 2.56840e+01 2.16597e+00 2567 2023 6 2.80403e+01 1.47828e+00 2222 2023 7 3.10833e+01 1.53017e+00 2597 2023 8 3.13737e+01 1.34200e+00 2364 2023 9 2.92598e+01 1.48594e+00 2550 2023 10 2.36656e+01 1.85561e+00 2461 2023 11 2.05222e+01 1.95955e+00 1774 2023 12 1.51626e+01 1.80842e+00 1280 2024 1 1.43033e+01 1.44965e+00 1325 2024 2 1.61951e+01 1.29269e+00 2090 2024 3 2.08626e+01 1.40564e+00 1851 2024 4 2.22651e+01 8.01163e-01 213