YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 1.85137e+01 1.42931e-01 128 2000 3 2.06663e+01 1.65315e+00 762 2000 4 2.22218e+01 9.06273e-01 646 2000 5 2.57452e+01 1.86049e+00 698 2000 6 2.80567e+01 9.29819e-01 386 2000 7 2.81887e+01 7.74831e-01 434 2000 8 2.96058e+01 3.65606e-01 320 2000 9 2.67531e+01 1.76858e+00 354 2000 10 2.32281e+01 1.60847e+00 995 2000 11 2.11292e+01 2.62981e+00 479 2000 12 1.74451e+01 6.72057e-01 106 2001 1 1.22709e+01 6.19953e-02 64 2001 2 1.82701e+01 1.75618e+00 364 2001 3 1.68829e+01 1.39319e+00 501 2001 4 2.16928e+01 2.15997e+00 664 2001 5 2.55809e+01 9.85222e-01 768 2001 6 2.89990e+01 9.04007e-01 238 2001 7 2.90635e+01 7.21137e-01 149 2001 8 2.89732e+01 2.13085e+00 504 2001 9 2.64261e+01 1.40062e+00 499 2001 10 2.25485e+01 2.15263e+00 491 2001 11 1.96612e+01 8.60289e-01 722 2001 12 1.94945e+01 2.25903e+00 613 2002 1 1.46965e+01 2.33962e+00 96 2002 2 1.61488e+01 2.00746e+00 384 2002 3 1.83288e+01 2.40283e+00 197 2002 4 2.43471e+01 2.09516e+00 512 2002 5 2.63211e+01 1.76247e+00 946 2002 6 2.85204e+01 7.32282e-01 523 2002 7 2.94926e+01 1.25288e+00 1631 2002 8 2.88966e+01 1.01444e+00 1965 2002 9 2.86707e+01 1.01017e+00 1941 2002 10 2.69694e+01 1.79571e+00 2957 2002 11 2.01759e+01 2.74172e+00 2225 2002 12 1.44621e+01 8.29564e-01 985 2003 1 1.18351e+01 1.40941e+00 1548 2003 2 1.42985e+01 2.66731e+00 1051 2003 3 2.10102e+01 1.62941e+00 1500 2003 4 2.19902e+01 2.04489e+00 2748 2003 5 2.71739e+01 1.38107e+00 2603 2003 6 2.81546e+01 1.75455e+00 1934 2003 7 2.93517e+01 1.71894e+00 1267 2003 8 2.88962e+01 1.37687e+00 2328 2003 9 2.79852e+01 1.23388e+00 2044 2003 10 2.42582e+01 1.14173e+00 2522 2003 11 2.14767e+01 1.87028e+00 2658 2003 12 1.45207e+01 1.45348e+00 958 2004 1 1.35396e+01 1.19321e+00 1593 2004 2 1.41506e+01 8.76951e-01 680 2004 3 1.88695e+01 1.66428e+00 2679 2004 4 2.02702e+01 1.78372e+00 2559 2004 5 2.62549e+01 1.81800e+00 3553 2004 6 2.97950e+01 1.23551e+00 2002 2004 7 3.00654e+01 1.24965e+00 2173 2004 8 2.97602e+01 1.47745e+00 2346 2004 9 2.69983e+01 1.89888e+00 2018 2004 10 2.50469e+01 2.04807e+00 2703 2004 11 2.18704e+01 2.40335e+00 2158 2004 12 1.65613e+01 2.14202e+00 1414 2005 1 1.42709e+01 2.16580e+00 1227 2005 2 1.46588e+01 9.85971e-01 1144 2005 3 1.70362e+01 1.84816e+00 1778 2005 4 2.06194e+01 8.73758e-01 3095 2005 5 2.49496e+01 2.13500e+00 3030 2005 6 2.84541e+01 1.40836e+00 1845 2005 7 3.03787e+01 1.61496e+00 2414 2005 8 3.03361e+01 1.86703e+00 2116 2005 9 2.79667e+01 1.36968e+00 2690 2005 10 2.50983e+01 2.97262e+00 2844 2005 11 1.98314e+01 1.76399e+00 2102 2005 12 1.48315e+01 2.05159e+00 1487 2006 1 1.49867e+01 1.16993e+00 1615 2006 2 1.48351e+01 1.52049e+00 1525 2006 3 1.89135e+01 1.41227e+00 3044 2006 4 2.28203e+01 2.32314e+00 2871 2006 5 2.52779e+01 1.77599e+00 3434 2006 6 2.84176e+01 1.29198e+00 3375 2006 7 2.99740e+01 1.31877e+00 2828 2006 8 3.04541e+01 1.09030e+00 2465 2006 9 2.88651e+01 1.55041e+00 2639 2006 10 2.42836e+01 2.17282e+00 2893 2006 11 1.89146e+01 1.56260e+00 1484 2006 12 1.62675e+01 1.28560e+00 653 2007 1 1.49725e+01 1.63181e+00 1054 2007 2 1.38800e+01 1.15017e+00 1421 2007 3 1.90320e+01 1.90872e+00 3076 2007 4 2.09435e+01 1.78866e+00 2430 2007 5 2.44944e+01 1.06471e+00 3368 2007 6 2.80882e+01 1.59209e+00 2672 2007 7 2.99177e+01 1.87408e+00 2002 2007 8 3.05562e+01 1.13071e+00 2650 2007 9 2.87741e+01 1.27381e+00 2095 2007 10 2.63010e+01 9.01839e-01 1865 2007 11 1.93138e+01 1.59842e+00 2938 2007 12 1.82221e+01 1.41579e+00 1463 2008 1 1.39040e+01 2.20359e+00 754 2008 2 1.67044e+01 1.57563e+00 1871 2008 3 1.81421e+01 2.03707e+00 2468 2008 4 2.21894e+01 1.33018e+00 2623 2008 5 2.53190e+01 1.42826e+00 2950 2008 6 2.91566e+01 1.21182e+00 2515 2008 7 2.98398e+01 1.38913e+00 1723 2008 8 2.83191e+01 1.55987e+00 1631 2008 9 2.77900e+01 1.80474e+00 2850 2008 10 2.35257e+01 2.25898e+00 3091 2008 11 1.72147e+01 2.17260e+00 2155 2008 12 1.57523e+01 1.51237e+00 1542 2009 1 1.46827e+01 2.23251e+00 1887 2009 2 1.41425e+01 1.56701e+00 1807 2009 3 1.83498e+01 2.88758e+00 2338 2009 4 2.20924e+01 1.80716e+00 2559 2009 5 2.63112e+01 1.49000e+00 2532 2009 6 2.87202e+01 1.49391e+00 2600 2009 7 2.93381e+01 1.10540e+00 1930 2009 8 2.96832e+01 1.81058e+00 2317 2009 9 2.86962e+01 1.11169e+00 2310 2009 10 2.55803e+01 2.94574e+00 2958 2009 11 1.96024e+01 1.50041e+00 1859 2009 12 1.38314e+01 1.94535e+00 513 2010 1 1.15921e+01 3.08240e+00 1291 2010 2 1.20011e+01 1.13257e+00 1551 2010 3 1.54137e+01 2.02295e+00 2124 2010 4 2.14466e+01 1.59709e+00 2234 2010 5 2.69878e+01 1.81035e+00 3292 2010 6 3.04297e+01 1.37830e+00 2607 2010 7 2.99332e+01 1.55034e+00 2480 2010 8 3.00319e+01 1.65151e+00 1501 2010 9 2.93561e+01 1.51324e+00 2672 2010 10 2.45400e+01 1.04041e+00 4045 2010 11 1.98269e+01 1.40753e+00 2906 2010 12 1.37873e+01 3.11971e+00 1694 2011 1 1.14353e+01 1.05216e+00 1500 2011 2 1.49236e+01 2.32780e+00 829 2011 3 1.96346e+01 1.48952e+00 2336 2011 4 2.39236e+01 1.53157e+00 3747 2011 5 2.60693e+01 1.58180e+00 4332 2011 6 2.94416e+01 1.50613e+00 2467 2011 7 2.97357e+01 1.23145e+00 1900 2011 8 3.04773e+01 1.28570e+00 2723 2011 9 2.83345e+01 1.12374e+00 2671 2011 10 2.37128e+01 2.04084e+00 2552 2011 11 1.89718e+01 1.16207e+00 2113 2011 12 1.62482e+01 8.42850e-01 1403 2012 1 1.53410e+01 1.68093e+00 2119 2012 2 1.64594e+01 2.03830e+00 678 2012 3 2.15409e+01 2.20447e+00 2869 2012 4 2.35415e+01 1.24474e+00 3398 2012 5 2.68889e+01 1.19679e+00 3266 2012 6 2.76419e+01 1.22863e+00 1766 2012 7 2.95344e+01 2.15789e+00 2520 2012 8 2.92311e+01 1.57245e+00 1967 2012 9 2.79933e+01 1.51755e+00 2458 2012 10 2.43002e+01 2.50853e+00 2579 2012 11 1.83031e+01 1.05322e+00 2188 2012 12 1.69807e+01 2.03707e+00 1835 2013 1 1.59114e+01 1.14886e+00 1025 2013 2 1.63004e+01 1.53477e+00 1703 2013 3 1.60204e+01 1.57481e+00 2965 2013 4 2.13873e+01 2.14583e+00 2196 2013 5 2.48975e+01 2.17375e+00 3035 2013 6 2.84772e+01 1.66513e+00 2547 2013 7 2.90141e+01 1.37323e+00 1289 2013 8 2.99261e+01 1.83721e+00 2554 2013 9 2.95365e+01 1.75738e+00 2840 2013 10 2.50737e+01 1.97884e+00 2683 2013 11 1.93723e+01 2.42138e+00 1570 2013 12 1.71208e+01 1.43007e+00 923 2014 1 1.26591e+01 8.65343e-01 764 2014 2 1.49285e+01 2.25474e+00 1235 2014 3 1.74431e+01 1.46725e+00 2207 2014 4 2.13322e+01 1.96076e+00 2250 2014 5 2.52831e+01 1.70199e+00 2448 2014 6 2.86851e+01 1.75020e+00 2342 2014 7 3.04821e+01 1.55881e+00 1737 2014 8 2.97898e+01 1.39863e+00 2574 2014 9 2.82036e+01 1.41869e+00 1175 2014 10 2.52382e+01 1.73509e+00 3237 2014 11 1.72353e+01 2.14436e+00 1692 2014 12 1.63575e+01 1.21074e+00 1490 2015 1 1.47740e+01 1.51331e+00 2127 2015 2 1.37876e+01 1.32785e+00 1680 2015 3 1.96271e+01 1.92841e+00 1789 2015 4 2.35787e+01 1.88475e+00 1206 2015 5 2.69053e+01 1.94651e+00 4237 2015 6 3.00835e+01 1.38143e+00 2150 2015 7 2.92110e+01 1.77166e+00 2108 2015 8 3.00980e+01 1.48164e+00 2302 2015 9 2.74784e+01 2.20368e+00 1251 2015 10 2.40440e+01 1.40433e+00 2326 2015 11 2.24761e+01 3.13884e+00 2531 2015 12 1.86574e+01 1.60411e+00 988 2016 1 1.47284e+01 1.89121e+00 1393 2016 2 1.43227e+01 1.61499e+00 1655 2016 3 1.84377e+01 1.99568e+00 1278 2016 4 2.23811e+01 2.01099e+00 2220 2016 5 2.62490e+01 1.51388e+00 2931 2016 6 2.95061e+01 1.35122e+00 2754 2016 7 3.11394e+01 1.32823e+00 2846 2016 8 3.03556e+01 1.07351e+00 2015 2016 9 2.92783e+01 1.32880e+00 2527 2016 10 2.52184e+01 1.75484e+00 2919 2016 11 2.04646e+01 2.36618e+00 2568 2016 12 1.79949e+01 1.80942e+00 1666 2017 1 1.61390e+01 1.52337e+00 1467 2017 2 1.80088e+01 1.77145e+00 2307 2017 3 1.90141e+01 2.16795e+00 2727 2017 4 2.35052e+01 1.30527e+00 3156 2017 5 2.52349e+01 1.37038e+00 2503 2017 6 2.88436e+01 1.74443e+00 1375 2017 7 3.04284e+01 1.40874e+00 1667 2017 8 3.02820e+01 1.44908e+00 2072 2017 9 2.79284e+01 1.66791e+00 2802 2017 10 2.50665e+01 2.59662e+00 3111 2017 11 1.99104e+01 1.20008e+00 2770 2017 12 1.72383e+01 2.54537e+00 1274 2018 1 1.13737e+01 1.85371e+00 1162 2018 2 1.98628e+01 3.11315e+00 1705 2018 3 1.81817e+01 2.05648e+00 2941 2018 4 2.16354e+01 1.21537e+00 2661 2018 5 2.52788e+01 1.52151e+00 2040 2018 6 2.92192e+01 1.91713e+00 2123 2018 7 3.00312e+01 1.54950e+00 1701 2018 8 3.01654e+01 1.44774e+00 1895 2018 9 3.03261e+01 1.18813e+00 3002 2018 10 2.68787e+01 2.23284e+00 2914 2018 11 1.92366e+01 2.36480e+00 1354 2018 12 1.57039e+01 1.62405e+00 1439 2019 1 1.55424e+01 1.72497e+00 1500 2019 2 1.86952e+01 3.10886e+00 1250 2019 3 1.90179e+01 1.30523e+00 2317 2019 4 2.23770e+01 1.79654e+00 2162 2019 5 2.76640e+01 1.78427e+00 3286 2019 6 2.93712e+01 1.24489e+00 2002 2019 7 2.96399e+01 1.46549e+00 1683 2019 8 3.00861e+01 1.02135e+00 2088 2019 9 2.90177e+01 1.11009e+00 3581 2019 10 2.60397e+01 1.97312e+00 2422 2019 11 1.91327e+01 2.53426e+00 1949 2019 12 1.67909e+01 1.62143e+00 1785 2020 1 1.61588e+01 1.62924e+00 2350 2020 2 1.56857e+01 1.08664e+00 1632 2020 3 2.14790e+01 3.52373e+00 2788 2020 4 2.42552e+01 7.22574e-01 1614 2020 5 2.48662e+01 1.60426e+00 3194 2020 6 2.96122e+01 1.37923e+00 2087 2020 7 3.00526e+01 1.19374e+00 1897 2020 8 3.14584e+01 1.16738e+00 1224 2020 9 2.84200e+01 2.12166e+00 1475 2020 10 2.57771e+01 1.08259e+00 2385 2020 11 2.14365e+01 1.94671e+00 2837 2020 12 1.49406e+01 1.59260e+00 2823 2021 1 1.45285e+01 1.59714e+00 1709 2021 2 1.69813e+01 2.20096e+00 1700 2021 3 1.92850e+01 1.94925e+00 2381 2021 4 2.21146e+01 1.71912e+00 2619 2021 5 2.54819e+01 1.49639e+00 2706 2021 6 2.83750e+01 1.32737e+00 1329 2021 7 2.98411e+01 1.27310e+00 1543 2021 8 3.01986e+01 1.43584e+00 1889 2021 9 2.85658e+01 1.41895e+00 2030 2021 10 2.61823e+01 1.67405e+00 1806 2021 11 1.87885e+01 1.45482e+00 2742 2021 12 1.79645e+01 1.38118e+00 2456 2022 1 1.57119e+01 2.36056e+00 2651 2022 2 1.62407e+01 2.83477e+00 2332 2022 3 1.95615e+01 1.23118e+00 2626 2022 4 2.34439e+01 1.20587e+00 2002 2022 5 2.68767e+01 1.35324e+00 2954 2022 6 2.96896e+01 1.08508e+00 2717 2022 7 3.09043e+01 1.09469e+00 1917 2022 8 3.09073e+01 1.19452e+00 2158 2022 9 2.85092e+01 1.94790e+00 1994 2022 10 2.32618e+01 1.56607e+00 2994 2022 11 2.15252e+01 2.46998e+00 1804 2022 12 1.78098e+01 2.79435e+00 2919 2023 1 1.50425e+01 1.17097e+00 2365 2023 2 1.73812e+01 1.49939e+00 2095 2023 3 2.07060e+01 1.97636e+00 3115 2023 4 2.34773e+01 1.06031e+00 1891 2023 5 2.57465e+01 1.81394e+00 2570 2023 6 2.77390e+01 1.53735e+00 2160 2023 7 3.05460e+01 1.27912e+00 2937 2023 8 3.12065e+01 9.88553e-01 2682 2023 9 2.91670e+01 1.31927e+00 2114 2023 10 2.37857e+01 1.46107e+00 2681 2023 11 2.03759e+01 1.73362e+00 1987 2023 12 1.46327e+01 1.52410e+00 1420 2024 1 1.35133e+01 1.31561e+00 1392 2024 2 1.57414e+01 8.80929e-01 1943 2024 3 2.04392e+01 1.17297e+00 2077 2024 4 2.18382e+01 1.30820e+00 218