YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 1.96035e+01 4.06764e-01 192 2000 3 2.22246e+01 8.94311e-01 491 2000 4 2.36643e+01 1.05767e+00 781 2000 5 2.65915e+01 1.06419e+00 320 2000 6 2.91517e+01 1.45904e+00 499 2000 7 2.93067e+01 1.28426e+00 478 2000 8 2.95377e+01 1.01221e+00 570 2000 9 2.90906e+01 1.31603e+00 413 2000 10 2.43832e+01 1.64773e+00 921 2000 11 2.27175e+01 1.52777e+00 448 2000 12 1.80098e+01 1.85774e+00 403 2001 1 1.38691e+01 3.65969e-01 192 2001 2 2.00288e+01 2.35130e+00 444 2001 3 1.98155e+01 7.36866e-01 416 2001 4 2.30878e+01 1.47887e+00 732 2001 5 2.42233e+01 1.97451e+00 689 2001 6 2.94147e+01 1.21413e+00 256 2001 7 2.86216e+01 9.97357e-01 304 2001 8 2.99608e+01 8.56464e-01 492 2001 9 2.77368e+01 1.99721e+00 576 2001 10 2.43769e+01 1.60545e+00 576 2001 11 2.11413e+01 1.15467e+00 768 2001 12 2.19353e+01 1.41504e+00 576 2002 1 1.78867e+01 2.31866e+00 453 2002 2 1.83801e+01 1.52913e+00 580 2002 3 2.03326e+01 2.29864e+00 526 2002 4 2.53386e+01 1.25648e+00 466 2002 5 2.67323e+01 1.21772e+00 732 2002 6 2.78513e+01 7.23060e-01 514 2002 7 2.88969e+01 1.85014e+00 1617 2002 8 2.92543e+01 1.14470e+00 1813 2002 9 2.88088e+01 1.15174e+00 2080 2002 10 2.78298e+01 1.16875e+00 3595 2002 11 2.31098e+01 2.29028e+00 2033 2002 12 1.75899e+01 1.09696e+00 1146 2003 1 1.46811e+01 1.18901e+00 1851 2003 2 1.69923e+01 1.87795e+00 1070 2003 3 2.29613e+01 1.31780e+00 1113 2003 4 2.27575e+01 1.53377e+00 2618 2003 5 2.73859e+01 1.97215e+00 2520 2003 6 2.85267e+01 1.26962e+00 1552 2003 7 3.01032e+01 1.57097e+00 1339 2003 8 2.90208e+01 1.27643e+00 1879 2003 9 2.85101e+01 9.47599e-01 1745 2003 10 2.60110e+01 9.75494e-01 2110 2003 11 2.32545e+01 1.47980e+00 2851 2003 12 1.71383e+01 1.73060e+00 1120 2004 1 1.65317e+01 1.01821e+00 2328 2004 2 1.74626e+01 1.15221e+00 901 2004 3 2.00785e+01 1.40063e+00 2412 2004 4 2.17064e+01 1.63061e+00 2964 2004 5 2.65280e+01 1.58661e+00 3411 2004 6 3.01903e+01 1.00643e+00 2935 2004 7 2.94705e+01 1.72762e+00 2039 2004 8 2.96371e+01 1.52291e+00 1698 2004 9 2.78627e+01 1.75141e+00 2143 2004 10 2.61530e+01 1.29056e+00 3055 2004 11 2.28457e+01 1.67475e+00 2244 2004 12 1.82132e+01 2.50378e+00 1687 2005 1 1.67107e+01 1.30181e+00 1723 2005 2 1.66722e+01 1.28577e+00 2212 2005 3 1.98937e+01 1.95532e+00 1755 2005 4 2.22179e+01 9.26961e-01 3218 2005 5 2.54032e+01 1.53134e+00 2834 2005 6 2.83352e+01 1.32860e+00 1737 2005 7 2.96217e+01 1.47559e+00 2632 2005 8 3.10328e+01 1.29602e+00 2051 2005 9 2.84380e+01 1.18960e+00 2950 2005 10 2.53511e+01 2.57301e+00 2430 2005 11 2.16239e+01 1.21018e+00 1795 2005 12 1.80529e+01 1.75507e+00 1446 2006 1 1.72543e+01 7.17852e-01 1864 2006 2 1.73429e+01 1.23949e+00 1603 2006 3 2.04452e+01 1.21871e+00 2996 2006 4 2.42851e+01 1.94933e+00 3376 2006 5 2.63919e+01 1.18669e+00 3000 2006 6 2.85619e+01 1.07602e+00 2564 2006 7 2.96475e+01 1.08933e+00 2028 2006 8 3.04061e+01 1.25981e+00 2526 2006 9 2.94606e+01 8.70530e-01 2995 2006 10 2.61072e+01 1.85046e+00 3534 2006 11 2.07142e+01 2.15885e+00 2190 2006 12 1.87738e+01 1.00875e+00 1211 2007 1 1.87814e+01 1.45524e+00 1401 2007 2 1.62325e+01 1.08325e+00 1587 2007 3 1.97896e+01 1.38068e+00 2490 2007 4 2.23187e+01 1.41010e+00 2638 2007 5 2.47016e+01 8.61870e-01 3205 2007 6 2.76880e+01 1.56198e+00 2652 2007 7 3.03910e+01 1.83779e+00 2007 2007 8 3.05187e+01 9.06596e-01 2791 2007 9 2.89924e+01 1.46547e+00 2070 2007 10 2.68186e+01 1.09945e+00 2063 2007 11 2.14078e+01 1.60507e+00 2988 2007 12 2.10680e+01 1.18304e+00 2706 2008 1 1.69028e+01 1.37728e+00 1448 2008 2 1.91435e+01 1.00198e+00 1876 2008 3 1.95853e+01 1.31583e+00 2297 2008 4 2.32485e+01 1.37331e+00 3008 2008 5 2.61621e+01 1.41845e+00 3451 2008 6 2.92882e+01 1.33336e+00 2727 2008 7 2.94151e+01 1.23555e+00 1473 2008 8 2.97007e+01 1.03762e+00 1753 2008 9 2.81734e+01 1.43481e+00 2353 2008 10 2.51829e+01 2.19644e+00 2874 2008 11 1.93303e+01 1.83369e+00 2701 2008 12 1.80045e+01 1.22327e+00 1977 2009 1 1.76150e+01 2.07889e+00 2581 2009 2 1.64230e+01 1.56781e+00 1832 2009 3 1.98008e+01 2.13140e+00 2799 2009 4 2.29792e+01 9.97137e-01 2659 2009 5 2.67999e+01 1.34890e+00 2684 2009 6 2.93604e+01 1.23704e+00 2473 2009 7 2.99566e+01 1.26708e+00 2788 2009 8 2.98197e+01 1.53862e+00 2398 2009 9 2.95778e+01 1.22168e+00 2268 2009 10 2.73173e+01 2.53525e+00 3138 2009 11 2.21166e+01 1.51529e+00 1621 2009 12 1.78767e+01 1.74444e+00 1161 2010 1 1.42293e+01 2.96009e+00 1317 2010 2 1.45632e+01 1.27318e+00 1074 2010 3 1.62816e+01 1.96832e+00 2192 2010 4 2.17122e+01 1.84376e+00 2129 2010 5 2.73161e+01 1.81769e+00 3721 2010 6 3.02758e+01 8.01655e-01 2930 2010 7 2.92514e+01 1.04262e+00 2411 2010 8 3.01851e+01 1.91251e+00 1733 2010 9 2.90526e+01 1.22931e+00 2591 2010 10 2.57431e+01 1.06158e+00 4019 2010 11 2.14489e+01 1.72362e+00 3018 2010 12 1.58291e+01 2.86204e+00 2010 2011 1 1.45552e+01 1.15510e+00 1527 2011 2 1.74230e+01 1.69477e+00 1734 2011 3 2.09871e+01 1.26053e+00 2796 2011 4 2.51322e+01 1.44005e+00 3753 2011 5 2.70291e+01 1.07042e+00 3803 2011 6 2.90823e+01 1.53920e+00 2365 2011 7 2.97994e+01 1.48423e+00 2244 2011 8 2.99808e+01 1.21845e+00 2321 2011 9 2.88708e+01 1.15490e+00 2009 2011 10 2.50614e+01 2.10623e+00 2391 2011 11 2.10173e+01 8.34356e-01 2327 2011 12 1.92627e+01 9.51150e-01 2311 2012 1 1.73813e+01 1.43592e+00 2235 2012 2 1.88335e+01 1.86124e+00 1344 2012 3 2.27902e+01 1.38963e+00 3272 2012 4 2.41690e+01 1.21462e+00 2841 2012 5 2.71813e+01 1.08130e+00 2916 2012 6 2.80993e+01 1.10565e+00 2077 2012 7 2.93360e+01 1.36796e+00 2567 2012 8 2.98754e+01 1.95553e+00 1809 2012 9 2.86432e+01 1.33822e+00 1967 2012 10 2.61409e+01 2.05443e+00 2249 2012 11 1.96600e+01 1.32493e+00 2202 2012 12 1.95293e+01 1.46035e+00 1741 2013 1 1.89434e+01 1.13273e+00 1766 2013 2 1.84281e+01 1.31879e+00 2331 2013 3 1.84540e+01 1.14535e+00 2336 2013 4 2.32941e+01 2.27567e+00 1910 2013 5 2.59123e+01 1.29165e+00 2862 2013 6 2.91134e+01 1.55769e+00 2117 2013 7 2.93246e+01 1.32811e+00 1558 2013 8 3.00772e+01 1.30308e+00 2094 2013 9 2.94589e+01 1.39884e+00 2563 2013 10 2.67787e+01 1.58425e+00 2744 2013 11 2.21881e+01 1.76031e+00 1274 2013 12 2.03436e+01 1.18863e+00 1979 2014 1 1.60192e+01 1.08292e+00 1347 2014 2 1.80793e+01 1.14958e+00 1181 2014 3 2.02485e+01 9.72396e-01 2079 2014 4 2.29413e+01 1.72973e+00 1900 2014 5 2.60317e+01 1.17224e+00 2883 2014 6 2.93237e+01 1.24070e+00 2583 2014 7 3.01033e+01 1.61709e+00 1930 2014 8 3.07446e+01 1.16634e+00 2787 2014 9 2.96562e+01 1.12240e+00 1563 2014 10 2.64616e+01 1.64285e+00 3294 2014 11 2.07296e+01 1.55610e+00 2341 2014 12 1.82451e+01 1.19052e+00 1658 2015 1 1.77985e+01 1.48400e+00 1723 2015 2 1.64502e+01 1.08633e+00 1927 2015 3 2.21514e+01 2.04357e+00 2638 2015 4 2.49093e+01 1.90478e+00 2133 2015 5 2.72656e+01 1.66302e+00 3267 2015 6 2.96631e+01 1.48936e+00 2422 2015 7 3.01711e+01 1.12161e+00 1805 2015 8 3.02674e+01 1.58944e+00 2066 2015 9 2.93482e+01 1.37226e+00 1197 2015 10 2.63224e+01 1.69504e+00 1887 2015 11 2.40909e+01 2.15810e+00 2549 2015 12 2.12773e+01 1.38345e+00 1344 2016 1 1.89688e+01 2.36464e+00 928 2016 2 1.67509e+01 1.48579e+00 1754 2016 3 1.96596e+01 2.44709e+00 1235 2016 4 2.37664e+01 1.31609e+00 2886 2016 5 2.67508e+01 1.31004e+00 2661 2016 6 2.91579e+01 1.28604e+00 2235 2016 7 3.07925e+01 1.15227e+00 2118 2016 8 3.03726e+01 1.42517e+00 2273 2016 9 2.95621e+01 1.33056e+00 2828 2016 10 2.62977e+01 2.25097e+00 2659 2016 11 2.19196e+01 1.89828e+00 2243 2016 12 2.07357e+01 1.04383e+00 2946 2017 1 1.91551e+01 1.31379e+00 2249 2017 2 1.97797e+01 1.21266e+00 2160 2017 3 2.09179e+01 1.26428e+00 3142 2017 4 2.39651e+01 1.28782e+00 2639 2017 5 2.63927e+01 1.44496e+00 2523 2017 6 2.91562e+01 1.50530e+00 1193 2017 7 3.06042e+01 1.36900e+00 2296 2017 8 3.10627e+01 1.15763e+00 2030 2017 9 2.91700e+01 1.37227e+00 2370 2017 10 2.60950e+01 2.28118e+00 2320 2017 11 2.20122e+01 8.91073e-01 3195 2017 12 2.04805e+01 1.62961e+00 2514 2018 1 1.49101e+01 9.46416e-01 1336 2018 2 2.15882e+01 2.46100e+00 2230 2018 3 2.03628e+01 1.48061e+00 3195 2018 4 2.38988e+01 1.00769e+00 2860 2018 5 2.51831e+01 1.27579e+00 1620 2018 6 2.93717e+01 1.68539e+00 2623 2018 7 3.00821e+01 1.13244e+00 1905 2018 8 3.06316e+01 1.07105e+00 2080 2018 9 2.99652e+01 1.30545e+00 2566 2018 10 2.77210e+01 1.51088e+00 3219 2018 11 2.37802e+01 2.03153e+00 2155 2018 12 1.88462e+01 1.61527e+00 1695 2019 1 1.82238e+01 1.93519e+00 1795 2019 2 1.97276e+01 2.49977e+00 1810 2019 3 2.14966e+01 1.09747e+00 2809 2019 4 2.42447e+01 1.25051e+00 2610 2019 5 2.76945e+01 1.40601e+00 3177 2019 6 3.03284e+01 1.22071e+00 2455 2019 7 3.01270e+01 1.10068e+00 2333 2019 8 3.01056e+01 8.90202e-01 1436 2019 9 2.90342e+01 1.35859e+00 2901 2019 10 2.73079e+01 7.58750e-01 2492 2019 11 2.29225e+01 2.58389e+00 2195 2019 12 1.98882e+01 1.08216e+00 1518 2020 1 1.86750e+01 1.57657e+00 2605 2020 2 1.89745e+01 1.63970e+00 1954 2020 3 2.28441e+01 2.79849e+00 2699 2020 4 2.51665e+01 9.97047e-01 1777 2020 5 2.59721e+01 1.17538e+00 3018 2020 6 2.99751e+01 1.16005e+00 1846 2020 7 3.04090e+01 1.04843e+00 1873 2020 8 3.16862e+01 9.40998e-01 1070 2020 9 2.98288e+01 1.46396e+00 1345 2020 10 2.73658e+01 8.41277e-01 1767 2020 11 2.31671e+01 1.40200e+00 2519 2020 12 1.78904e+01 1.39052e+00 2742 2021 1 1.76100e+01 1.03797e+00 1842 2021 2 1.94861e+01 1.90657e+00 2681 2021 3 2.10579e+01 1.31046e+00 2375 2021 4 2.38534e+01 1.78097e+00 2846 2021 5 2.66869e+01 1.34369e+00 3190 2021 6 2.86666e+01 1.42609e+00 1512 2021 7 3.01288e+01 2.02061e+00 1855 2021 8 3.03615e+01 1.22410e+00 1840 2021 9 2.95517e+01 1.02489e+00 2333 2021 10 2.76787e+01 1.45830e+00 2642 2021 11 2.11091e+01 1.62199e+00 2900 2021 12 2.05566e+01 1.12183e+00 3576 2022 1 1.88790e+01 2.33748e+00 2637 2022 2 1.80165e+01 1.96463e+00 2665 2022 3 2.19346e+01 9.39204e-01 3628 2022 4 2.44185e+01 8.91822e-01 1845 2022 5 2.73568e+01 1.17070e+00 2679 2022 6 2.93519e+01 1.36759e+00 2274 2022 7 3.11990e+01 8.11487e-01 2540 2022 8 3.04890e+01 9.79176e-01 1689 2022 9 2.95978e+01 1.70802e+00 2003 2022 10 2.45633e+01 1.42840e+00 2750 2022 11 2.39246e+01 1.72432e+00 1736 2022 12 2.04490e+01 2.74771e+00 2255 2023 1 1.78573e+01 1.03802e+00 2464 2023 2 2.04425e+01 1.57233e+00 2989 2023 3 2.31264e+01 1.75933e+00 3690 2023 4 2.53085e+01 1.09367e+00 2308 2023 5 2.72959e+01 1.65930e+00 3642 2023 6 2.87851e+01 1.57163e+00 2587 2023 7 3.13870e+01 9.56937e-01 2151 2023 8 3.16825e+01 1.31156e+00 2846 2023 9 2.98489e+01 1.17439e+00 2809 2023 10 2.52956e+01 1.90898e+00 2068 2023 11 2.25160e+01 1.18957e+00 1946 2023 12 1.79685e+01 1.69288e+00 1032 2024 1 1.71297e+01 8.83165e-01 904 2024 2 1.77602e+01 8.09220e-01 2501 2024 3 2.27490e+01 8.28435e-01 1677 2024 4 2.22664e+01 4.48556e-01 80