YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 1.85026e+01 8.90102e-01 103 2000 3 2.09049e+01 1.50453e+00 647 2000 4 2.18847e+01 1.16622e+00 714 2000 5 2.61182e+01 1.74587e+00 609 2000 6 2.80700e+01 7.23323e-01 383 2000 7 2.82557e+01 1.63143e+00 436 2000 8 3.00491e+01 5.74643e-01 256 2000 9 2.63949e+01 1.56413e+00 266 2000 10 2.34500e+01 1.95451e+00 703 2000 11 2.21900e+01 2.08194e+00 379 2000 12 1.91468e+01 1.15871e-01 64 2001 1 1.19141e+01 8.24904e-02 46 2001 2 1.80640e+01 2.19159e+00 507 2001 3 1.62865e+01 1.46100e+00 353 2001 4 2.17804e+01 2.02611e+00 721 2001 5 2.58855e+01 1.12090e+00 611 2001 6 2.87941e+01 3.46212e-01 128 2001 7 2.95313e+01 2.31775e-01 152 2001 8 2.99427e+01 1.91021e+00 344 2001 9 2.71226e+01 1.56460e+00 322 2001 10 2.25363e+01 1.99250e+00 369 2001 11 1.98263e+01 1.09505e+00 699 2001 12 1.86511e+01 2.89399e+00 556 2002 1 1.81382e+01 7.19396e-01 138 2002 2 1.66427e+01 2.26383e+00 378 2002 3 2.08948e+01 1.69009e+00 241 2002 4 2.44417e+01 2.24118e+00 510 2002 5 2.63236e+01 1.87755e+00 883 2002 6 2.85054e+01 1.13950e+00 509 2002 7 2.93462e+01 1.41261e+00 1679 2002 8 2.86161e+01 1.45359e+00 1829 2002 9 2.87987e+01 1.15413e+00 1639 2002 10 2.66982e+01 2.14494e+00 2558 2002 11 2.00971e+01 2.47451e+00 1535 2002 12 1.48102e+01 1.20645e+00 430 2003 1 1.16412e+01 1.74272e+00 1145 2003 2 1.51800e+01 2.14783e+00 1229 2003 3 2.10864e+01 2.02350e+00 1400 2003 4 2.19552e+01 2.10787e+00 2590 2003 5 2.76098e+01 1.64218e+00 2497 2003 6 2.82131e+01 1.67258e+00 1480 2003 7 2.95245e+01 1.97427e+00 1210 2003 8 2.86715e+01 1.43008e+00 1815 2003 9 2.76729e+01 1.46081e+00 1852 2003 10 2.42220e+01 1.24612e+00 2691 2003 11 2.16168e+01 2.19627e+00 2878 2003 12 1.39993e+01 1.29461e+00 464 2004 1 1.37894e+01 1.23207e+00 1348 2004 2 1.44271e+01 1.36201e+00 669 2004 3 1.90203e+01 1.81701e+00 2331 2004 4 2.05970e+01 2.28447e+00 2707 2004 5 2.65171e+01 1.82965e+00 3559 2004 6 2.99587e+01 1.49742e+00 2109 2004 7 3.01969e+01 1.77169e+00 2332 2004 8 2.96815e+01 1.45122e+00 1967 2004 9 2.68763e+01 2.18150e+00 1820 2004 10 2.46776e+01 1.98536e+00 2437 2004 11 2.12467e+01 2.59142e+00 2254 2004 12 1.70024e+01 1.23892e+00 713 2005 1 1.44742e+01 2.34562e+00 1181 2005 2 1.53974e+01 1.55988e+00 1253 2005 3 1.74382e+01 2.33685e+00 1753 2005 4 2.06650e+01 1.28486e+00 2918 2005 5 2.51728e+01 2.09976e+00 2795 2005 6 2.84686e+01 1.87182e+00 1644 2005 7 3.06338e+01 1.91766e+00 2096 2005 8 3.06746e+01 1.92498e+00 2179 2005 9 2.77398e+01 1.52707e+00 2726 2005 10 2.56875e+01 2.54063e+00 2051 2005 11 2.04189e+01 1.99555e+00 1840 2005 12 1.53633e+01 1.78892e+00 1290 2006 1 1.53176e+01 2.02478e+00 1528 2006 2 1.47122e+01 1.62029e+00 1601 2006 3 1.90390e+01 1.73617e+00 2939 2006 4 2.31846e+01 2.41522e+00 3207 2006 5 2.57445e+01 2.04338e+00 3177 2006 6 2.85419e+01 1.23123e+00 2782 2006 7 3.01231e+01 1.28529e+00 2563 2006 8 3.02823e+01 1.39026e+00 2462 2006 9 2.85523e+01 1.79882e+00 2611 2006 10 2.41205e+01 2.32187e+00 2475 2006 11 1.94446e+01 1.46047e+00 1103 2006 12 1.64462e+01 1.46457e+00 828 2007 1 1.50539e+01 1.71648e+00 1069 2007 2 1.42694e+01 1.78208e+00 1406 2007 3 1.93368e+01 2.16464e+00 2853 2007 4 2.14883e+01 2.04219e+00 2539 2007 5 2.44056e+01 1.49885e+00 3216 2007 6 2.80878e+01 1.62946e+00 2104 2007 7 3.03264e+01 1.86785e+00 1938 2007 8 3.07871e+01 1.13312e+00 2116 2007 9 2.80958e+01 1.51076e+00 1765 2007 10 2.61885e+01 1.07858e+00 1532 2007 11 1.88347e+01 1.73406e+00 2658 2007 12 1.81840e+01 1.95739e+00 1651 2008 1 1.46757e+01 2.55028e+00 578 2008 2 1.70378e+01 1.75828e+00 1543 2008 3 1.81440e+01 1.95393e+00 2310 2008 4 2.22513e+01 1.84245e+00 2565 2008 5 2.52672e+01 1.46836e+00 2693 2008 6 2.92129e+01 1.39317e+00 2231 2008 7 2.99684e+01 1.70618e+00 1673 2008 8 2.85499e+01 1.88161e+00 1665 2008 9 2.72041e+01 2.07869e+00 2247 2008 10 2.30968e+01 2.80446e+00 2862 2008 11 1.67175e+01 2.69694e+00 2024 2008 12 1.63368e+01 1.56586e+00 1896 2009 1 1.55615e+01 2.37453e+00 1677 2009 2 1.43353e+01 2.40497e+00 1630 2009 3 1.83103e+01 2.90649e+00 2376 2009 4 2.22132e+01 2.12324e+00 2396 2009 5 2.61993e+01 1.58371e+00 2427 2009 6 2.92727e+01 1.63413e+00 2106 2009 7 2.95316e+01 1.38675e+00 1795 2009 8 2.97377e+01 1.84526e+00 2306 2009 9 2.88434e+01 1.40158e+00 2162 2009 10 2.61708e+01 2.81721e+00 2739 2009 11 1.94518e+01 1.76288e+00 1615 2009 12 1.46624e+01 2.40166e+00 452 2010 1 1.20332e+01 3.24059e+00 950 2010 2 1.22195e+01 1.94575e+00 1684 2010 3 1.57945e+01 2.47715e+00 2118 2010 4 2.16678e+01 1.93636e+00 2155 2010 5 2.71159e+01 1.96925e+00 3224 2010 6 3.03272e+01 1.40120e+00 2633 2010 7 2.98076e+01 1.79982e+00 2678 2010 8 3.05503e+01 2.14591e+00 1115 2010 9 2.88706e+01 1.89457e+00 2425 2010 10 2.44517e+01 1.38118e+00 4106 2010 11 1.97388e+01 1.84738e+00 2318 2010 12 1.37472e+01 2.88191e+00 1052 2011 1 1.16910e+01 1.71569e+00 1275 2011 2 1.60912e+01 2.78840e+00 1289 2011 3 2.01303e+01 2.09085e+00 2504 2011 4 2.41001e+01 1.83036e+00 3390 2011 5 2.63382e+01 1.86766e+00 4072 2011 6 2.97530e+01 1.41879e+00 2476 2011 7 3.00567e+01 1.48939e+00 1799 2011 8 3.04022e+01 1.48952e+00 2511 2011 9 2.83018e+01 1.14185e+00 3042 2011 10 2.27092e+01 2.20781e+00 2234 2011 11 1.91996e+01 1.65132e+00 1973 2011 12 1.63604e+01 1.43356e+00 1660 2012 1 1.54506e+01 2.10652e+00 1841 2012 2 1.63120e+01 2.85153e+00 730 2012 3 2.21558e+01 2.41258e+00 2709 2012 4 2.34975e+01 1.68559e+00 3274 2012 5 2.72300e+01 1.05486e+00 3152 2012 6 2.77496e+01 1.49451e+00 1769 2012 7 2.97217e+01 2.02468e+00 2446 2012 8 2.92496e+01 1.83278e+00 1846 2012 9 2.81363e+01 1.56370e+00 2290 2012 10 2.40830e+01 2.77117e+00 2448 2012 11 1.79099e+01 1.27250e+00 2343 2012 12 1.72925e+01 2.22884e+00 1474 2013 1 1.61956e+01 1.84287e+00 1368 2013 2 1.60131e+01 1.87803e+00 1766 2013 3 1.62298e+01 2.06290e+00 2581 2013 4 2.19739e+01 2.04622e+00 2089 2013 5 2.51746e+01 2.30386e+00 2956 2013 6 2.84647e+01 2.01953e+00 2177 2013 7 2.83162e+01 1.85079e+00 1045 2013 8 2.99700e+01 2.06258e+00 2043 2013 9 2.92235e+01 2.19708e+00 2458 2013 10 2.47148e+01 2.40760e+00 2462 2013 11 1.97979e+01 2.54496e+00 1216 2013 12 1.74121e+01 1.84932e+00 1190 2014 1 1.35677e+01 1.74852e+00 813 2014 2 1.58225e+01 2.23323e+00 1118 2014 3 1.79565e+01 1.74406e+00 2096 2014 4 2.18375e+01 2.07091e+00 2028 2014 5 2.49990e+01 1.82644e+00 2259 2014 6 2.87719e+01 1.84808e+00 2038 2014 7 3.00435e+01 1.92255e+00 1728 2014 8 2.98499e+01 1.62081e+00 2518 2014 9 2.84437e+01 1.69196e+00 1280 2014 10 2.49984e+01 2.27924e+00 3264 2014 11 1.71965e+01 2.17337e+00 1414 2014 12 1.66507e+01 1.64940e+00 1629 2015 1 1.47895e+01 1.70570e+00 1595 2015 2 1.37292e+01 1.79520e+00 1731 2015 3 1.98716e+01 2.33044e+00 1668 2015 4 2.38025e+01 2.00660e+00 1494 2015 5 2.69368e+01 2.08119e+00 3759 2015 6 3.01482e+01 1.53371e+00 2244 2015 7 2.93225e+01 1.83553e+00 1579 2015 8 3.01078e+01 1.78855e+00 2134 2015 9 2.73562e+01 1.82421e+00 1430 2015 10 2.39871e+01 1.63903e+00 1913 2015 11 2.30637e+01 3.40443e+00 1995 2015 12 1.90354e+01 2.10886e+00 958 2016 1 1.39031e+01 1.65759e+00 1286 2016 2 1.47285e+01 1.93125e+00 1586 2016 3 1.89380e+01 2.31056e+00 1370 2016 4 2.25012e+01 2.05638e+00 2301 2016 5 2.62325e+01 2.05876e+00 3054 2016 6 2.99359e+01 1.56281e+00 2812 2016 7 3.14818e+01 1.47670e+00 2811 2016 8 3.02715e+01 1.04395e+00 1951 2016 9 2.93125e+01 1.48103e+00 2571 2016 10 2.45011e+01 1.83102e+00 2528 2016 11 2.02792e+01 2.46593e+00 2494 2016 12 1.83520e+01 2.09013e+00 1861 2017 1 1.58373e+01 2.21559e+00 1557 2017 2 1.84550e+01 2.03662e+00 2235 2017 3 1.93628e+01 2.74843e+00 2665 2017 4 2.35240e+01 1.93002e+00 2763 2017 5 2.54504e+01 2.06765e+00 2593 2017 6 2.90730e+01 2.13472e+00 1656 2017 7 3.01630e+01 1.76235e+00 1507 2017 8 3.02747e+01 1.74688e+00 2206 2017 9 2.80748e+01 1.78866e+00 2169 2017 10 2.47787e+01 3.12498e+00 2735 2017 11 1.99497e+01 1.34870e+00 2589 2017 12 1.75236e+01 3.21537e+00 1360 2018 1 1.15860e+01 1.77231e+00 864 2018 2 2.03020e+01 3.36364e+00 1798 2018 3 1.83911e+01 2.47067e+00 2822 2018 4 2.19391e+01 1.36480e+00 2540 2018 5 2.56860e+01 1.76482e+00 1947 2018 6 2.95679e+01 1.80735e+00 1898 2018 7 2.95930e+01 1.58181e+00 1336 2018 8 3.04059e+01 1.71921e+00 1657 2018 9 3.02309e+01 1.35670e+00 2922 2018 10 2.66255e+01 2.58218e+00 2599 2018 11 1.91942e+01 2.85499e+00 1145 2018 12 1.60219e+01 1.53194e+00 1395 2019 1 1.53550e+01 2.40359e+00 1622 2019 2 1.85409e+01 3.21847e+00 1247 2019 3 1.93366e+01 1.62230e+00 2302 2019 4 2.28220e+01 1.89651e+00 2515 2019 5 2.80025e+01 1.93053e+00 3210 2019 6 2.91680e+01 1.43822e+00 1853 2019 7 2.95752e+01 1.62777e+00 1747 2019 8 3.01986e+01 1.37270e+00 1647 2019 9 2.90344e+01 1.44651e+00 3017 2019 10 2.59992e+01 1.82179e+00 2195 2019 11 1.90279e+01 2.41854e+00 2049 2019 12 1.67178e+01 1.88140e+00 1797 2020 1 1.63356e+01 2.36381e+00 2574 2020 2 1.60220e+01 1.85559e+00 1745 2020 3 2.27301e+01 3.64877e+00 2583 2020 4 2.39540e+01 1.18564e+00 1891 2020 5 2.49132e+01 1.82283e+00 2891 2020 6 2.97489e+01 1.72538e+00 1965 2020 7 3.00086e+01 1.17644e+00 1671 2020 8 3.15375e+01 1.23579e+00 1203 2020 9 2.82014e+01 2.51911e+00 1418 2020 10 2.57216e+01 1.26101e+00 2212 2020 11 2.06666e+01 2.27991e+00 2523 2020 12 1.47786e+01 1.40115e+00 2379 2021 1 1.53155e+01 2.03845e+00 1588 2021 2 1.72594e+01 2.89619e+00 1907 2021 3 1.95552e+01 2.21919e+00 2416 2021 4 2.25903e+01 2.17417e+00 2560 2021 5 2.58666e+01 1.86603e+00 2611 2021 6 2.86085e+01 1.40070e+00 1075 2021 7 2.96634e+01 1.27006e+00 1423 2021 8 3.01530e+01 1.42526e+00 1455 2021 9 2.86572e+01 1.63987e+00 1888 2021 10 2.62537e+01 1.94107e+00 2165 2021 11 1.80373e+01 1.71691e+00 2366 2021 12 1.83591e+01 1.82597e+00 2691 2022 1 1.52574e+01 2.99934e+00 2675 2022 2 1.66820e+01 3.19099e+00 2434 2022 3 2.00555e+01 1.35627e+00 2904 2022 4 2.33530e+01 1.90555e+00 1962 2022 5 2.70146e+01 1.66753e+00 2973 2022 6 2.97066e+01 1.20994e+00 2414 2022 7 3.10926e+01 1.29135e+00 2055 2022 8 3.06931e+01 1.45085e+00 1853 2022 9 2.84107e+01 2.33196e+00 1850 2022 10 2.30905e+01 2.11976e+00 3061 2022 11 2.13738e+01 2.55839e+00 1544 2022 12 1.81755e+01 3.04961e+00 2796 2023 1 1.53410e+01 1.77274e+00 2669 2023 2 1.77718e+01 1.94752e+00 2028 2023 3 2.09066e+01 2.36579e+00 2836 2023 4 2.37607e+01 1.43521e+00 1782 2023 5 2.56702e+01 2.11443e+00 2468 2023 6 2.84444e+01 1.55446e+00 2007 2023 7 3.10957e+01 1.48721e+00 2684 2023 8 3.09769e+01 1.23470e+00 2583 2023 9 2.91760e+01 1.50640e+00 2381 2023 10 2.32546e+01 1.74479e+00 2339 2023 11 2.00087e+01 2.13215e+00 1734 2023 12 1.51106e+01 1.71951e+00 1201 2024 1 1.42570e+01 1.42094e+00 1299 2024 2 1.61612e+01 1.45356e+00 2052 2024 3 2.09083e+01 1.60109e+00 1844 2024 4 2.20106e+01 7.90023e-01 197