YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 2.44141e+01 5.22883e-01 133 2000 3 2.45935e+01 3.77234e-01 628 2000 4 2.51374e+01 8.08655e-01 490 2000 5 2.69717e+01 1.04133e+00 428 2000 6 2.69484e+01 2.03661e+00 566 2000 7 2.92896e+01 7.94091e-01 498 2000 8 2.90686e+01 5.00557e-01 403 2000 9 2.94679e+01 9.66540e-01 380 2000 10 2.82120e+01 1.15049e+00 410 2000 11 2.59349e+01 1.27236e+00 456 2000 12 2.47378e+01 8.34806e-01 209 2001 1 2.34772e+01 1.28288e+00 632 2001 2 2.36601e+01 1.51250e+00 514 2001 3 2.42060e+01 7.85213e-01 647 2001 4 2.55143e+01 5.84653e-01 622 2001 5 2.60665e+01 7.75986e-01 542 2001 6 2.81209e+01 8.96006e-01 357 2001 7 2.85868e+01 1.69314e+00 467 2001 8 2.91167e+01 8.62817e-01 515 2001 9 2.85666e+01 1.26876e+00 195 2001 10 2.78388e+01 3.39862e-01 241 2001 11 2.64478e+01 1.16100e+00 352 2001 12 2.44475e+01 1.59243e+00 274 2002 1 2.40383e+01 1.19049e+00 748 2002 2 2.37769e+01 3.35976e-01 134 2002 3 2.53803e+01 7.69650e-01 434 2002 4 2.68433e+01 5.73390e-01 502 2002 5 2.72611e+01 8.42202e-01 424 2002 6 2.82764e+01 4.47198e-01 241 2002 7 2.88169e+01 1.38591e+00 1975 2002 8 2.92839e+01 1.08335e+00 2040 2002 9 2.88102e+01 8.98166e-01 1552 2002 10 2.80197e+01 6.12964e-01 2916 2002 11 2.71196e+01 1.13234e+00 1856 2002 12 2.49237e+01 1.16962e+00 1574 2003 1 2.33181e+01 1.19000e+00 2059 2003 2 2.30238e+01 1.05490e+00 2582 2003 3 2.54654e+01 7.71186e-01 1993 2003 4 2.50222e+01 1.17087e+00 1863 2003 5 2.73708e+01 1.08447e+00 2205 2003 6 2.82143e+01 9.38138e-01 1033 2003 7 2.87421e+01 1.00218e+00 1826 2003 8 2.94386e+01 1.12284e+00 1695 2003 9 2.92329e+01 5.25948e-01 1635 2003 10 2.81291e+01 9.22823e-01 2736 2003 11 2.66496e+01 7.34013e-01 1554 2003 12 2.47410e+01 1.06695e+00 1679 2004 1 2.43611e+01 1.42959e+00 2080 2004 2 2.37799e+01 9.24768e-01 1687 2004 3 2.45268e+01 1.07557e+00 2037 2004 4 2.44922e+01 7.38599e-01 2623 2004 5 2.59371e+01 8.97080e-01 2995 2004 6 2.86036e+01 1.01695e+00 2295 2004 7 2.93340e+01 1.18626e+00 2864 2004 8 3.02772e+01 9.40899e-01 1201 2004 9 2.88701e+01 1.02495e+00 1744 2004 10 2.75681e+01 8.22950e-01 2386 2004 11 2.63931e+01 1.07989e+00 2154 2004 12 2.51819e+01 1.19205e+00 1505 2005 1 2.39733e+01 7.67420e-01 2583 2005 2 2.37101e+01 8.81336e-01 1643 2005 3 2.38406e+01 9.84009e-01 2243 2005 4 2.41776e+01 8.04808e-01 2808 2005 5 2.58644e+01 1.19626e+00 2332 2005 6 2.81267e+01 7.30809e-01 1060 2005 7 2.89683e+01 8.80685e-01 2865 2005 8 3.03409e+01 9.44203e-01 2359 2005 9 2.92430e+01 9.65349e-01 2440 2005 10 2.75562e+01 1.31956e+00 1323 2005 11 2.55513e+01 8.16824e-01 2769 2005 12 2.42734e+01 1.19385e+00 2306 2006 1 2.32404e+01 7.91829e-01 2182 2006 2 2.36151e+01 8.22640e-01 2593 2006 3 2.46755e+01 9.18206e-01 3146 2006 4 2.55289e+01 9.80515e-01 2712 2006 5 2.66670e+01 9.94830e-01 2623 2006 6 2.81551e+01 7.39522e-01 2166 2006 7 2.89893e+01 8.52421e-01 1307 2006 8 2.96358e+01 8.33673e-01 1822 2006 9 2.98529e+01 9.01021e-01 2150 2006 10 2.86999e+01 1.02717e+00 2489 2006 11 2.61157e+01 1.43692e+00 1858 2006 12 2.48525e+01 1.08528e+00 1354 2007 1 2.45829e+01 1.14744e+00 2391 2007 2 2.37943e+01 1.04976e+00 1674 2007 3 2.43161e+01 8.93744e-01 1569 2007 4 2.50147e+01 1.03131e+00 3172 2007 5 2.65602e+01 1.09302e+00 2250 2007 6 2.79048e+01 1.14591e+00 1932 2007 7 2.99866e+01 7.76807e-01 2455 2007 8 2.99539e+01 8.78634e-01 2960 2007 9 2.95803e+01 1.17317e+00 1921 2007 10 2.78574e+01 1.01463e+00 1498 2007 11 2.65273e+01 9.39888e-01 2405 2007 12 2.50341e+01 9.02760e-01 2770 2008 1 2.40536e+01 9.73279e-01 2156 2008 2 2.42552e+01 1.18093e+00 2192 2008 3 2.39120e+01 1.03870e+00 1872 2008 4 2.55360e+01 7.18820e-01 3084 2008 5 2.65437e+01 9.26456e-01 3059 2008 6 2.81167e+01 7.84809e-01 2097 2008 7 2.91453e+01 1.03721e+00 2163 2008 8 2.94684e+01 1.09647e+00 2370 2008 9 2.82560e+01 9.50582e-01 1908 2008 10 2.80816e+01 9.83767e-01 2029 2008 11 2.56673e+01 8.79738e-01 2450 2008 12 2.44444e+01 9.41733e-01 2348 2009 1 2.31570e+01 1.04024e+00 2602 2009 2 2.30169e+01 8.62835e-01 2037 2009 3 2.35844e+01 7.82210e-01 2076 2009 4 2.47707e+01 7.02927e-01 2973 2009 5 2.64824e+01 9.20488e-01 2610 2009 6 2.90438e+01 1.16801e+00 1826 2009 7 2.90957e+01 1.04714e+00 2136 2009 8 2.97953e+01 7.89564e-01 2648 2009 9 2.96563e+01 8.17526e-01 1703 2009 10 2.91943e+01 1.15011e+00 2317 2009 11 2.74035e+01 9.72246e-01 2016 2009 12 2.53525e+01 8.17000e-01 1300 2010 1 2.41038e+01 1.14619e+00 1665 2010 2 2.33487e+01 9.90307e-01 1366 2010 3 2.24536e+01 1.07641e+00 2110 2010 4 2.39855e+01 1.17859e+00 1948 2010 5 2.69127e+01 1.07817e+00 3270 2010 6 2.94718e+01 9.76541e-01 2271 2010 7 2.87539e+01 1.46204e+00 1735 2010 8 3.00749e+01 9.89495e-01 1809 2010 9 2.93447e+01 9.06437e-01 2137 2010 10 2.77157e+01 8.82985e-01 2714 2010 11 2.63217e+01 1.37142e+00 2247 2010 12 2.43445e+01 1.41293e+00 3186 2011 1 2.26620e+01 1.30456e+00 2221 2011 2 2.25774e+01 1.03051e+00 2882 2011 3 2.45388e+01 1.16582e+00 2944 2011 4 2.59180e+01 8.56502e-01 3354 2011 5 2.69869e+01 7.75304e-01 3050 2011 6 2.83808e+01 1.26228e+00 2297 2011 7 2.94382e+01 8.75420e-01 2382 2011 8 2.97633e+01 1.14977e+00 1442 2011 9 2.99864e+01 9.20291e-01 1949 2011 10 2.84052e+01 9.45608e-01 1208 2011 11 2.57900e+01 6.75788e-01 2675 2011 12 2.47526e+01 9.33681e-01 2197 2012 1 2.36787e+01 7.36108e-01 2198 2012 2 2.43680e+01 9.43489e-01 1857 2012 3 2.47197e+01 8.61301e-01 2693 2012 4 2.56539e+01 9.66882e-01 2503 2012 5 2.65435e+01 1.06136e+00 2154 2012 6 2.79537e+01 8.30561e-01 1432 2012 7 2.85590e+01 1.10388e+00 2092 2012 8 2.93291e+01 1.27207e+00 2006 2012 9 2.88050e+01 9.60625e-01 1722 2012 10 2.82214e+01 7.74681e-01 2469 2012 11 2.71312e+01 8.18925e-01 2528 2012 12 2.54377e+01 1.03398e+00 2007 2013 1 2.44273e+01 7.51703e-01 2167 2013 2 2.42936e+01 8.51704e-01 2205 2013 3 2.42955e+01 8.34876e-01 2131 2013 4 2.57886e+01 1.20744e+00 2151 2013 5 2.65182e+01 7.89334e-01 2583 2013 6 2.77487e+01 9.46566e-01 1686 2013 7 2.85172e+01 1.24356e+00 1612 2013 8 2.93453e+01 9.84195e-01 1965 2013 9 2.90822e+01 7.54391e-01 1808 2013 10 2.83821e+01 1.03206e+00 2610 2013 11 2.69245e+01 7.72303e-01 1150 2013 12 2.56141e+01 1.14583e+00 1940 2014 1 2.52021e+01 1.16937e+00 2057 2014 2 2.49269e+01 9.72667e-01 2694 2014 3 2.46912e+01 8.56417e-01 2466 2014 4 2.58532e+01 8.70436e-01 2639 2014 5 2.64607e+01 7.22496e-01 2463 2014 6 2.87050e+01 9.99342e-01 1815 2014 7 2.96692e+01 9.59610e-01 2135 2014 8 3.06713e+01 9.09456e-01 2862 2014 9 2.96348e+01 1.09626e+00 1327 2014 10 2.82392e+01 1.06490e+00 2579 2014 11 2.62420e+01 1.07455e+00 2343 2014 12 2.53393e+01 1.09926e+00 2073 2015 1 2.49581e+01 8.94459e-01 1745 2015 2 2.43151e+01 1.13721e+00 1994 2015 3 2.49693e+01 9.95705e-01 3103 2015 4 2.64896e+01 1.31842e+00 2851 2015 5 2.71372e+01 8.53561e-01 2895 2015 6 2.88931e+01 1.11700e+00 1729 2015 7 2.98034e+01 9.72626e-01 1926 2015 8 3.03089e+01 1.15629e+00 1591 2015 9 2.97238e+01 1.04191e+00 1420 2015 10 2.85965e+01 9.78808e-01 1992 2015 11 2.75425e+01 9.85599e-01 2226 2015 12 2.57109e+01 9.71371e-01 1431 2016 1 2.55703e+01 1.01975e+00 1167 2016 2 2.51821e+01 1.10297e+00 1483 2016 3 2.45732e+01 1.31740e+00 1248 2016 4 2.58945e+01 7.65899e-01 2457 2016 5 2.73957e+01 9.27122e-01 2845 2016 6 2.87264e+01 9.49992e-01 1848 2016 7 2.95590e+01 8.87583e-01 2648 2016 8 3.02998e+01 1.12456e+00 1673 2016 9 2.95641e+01 1.14050e+00 2393 2016 10 2.86832e+01 9.34096e-01 1725 2016 11 2.71303e+01 9.60329e-01 1988 2016 12 2.60163e+01 7.04324e-01 2042 2017 1 2.48786e+01 8.90833e-01 2230 2017 2 2.44060e+01 8.23845e-01 2242 2017 3 2.51279e+01 8.98402e-01 2506 2017 4 2.56777e+01 9.51893e-01 1982 2017 5 2.70333e+01 1.09007e+00 2811 2017 6 2.82666e+01 7.08729e-01 987 2017 7 2.95584e+01 7.70269e-01 2408 2017 8 3.02415e+01 1.21410e+00 2267 2017 9 2.95614e+01 9.86230e-01 2828 2017 10 2.86174e+01 6.82241e-01 1818 2017 11 2.66064e+01 6.08709e-01 2537 2017 12 2.58349e+01 1.08330e+00 3167 2018 1 2.43725e+01 1.44064e+00 1302 2018 2 2.43090e+01 1.23082e+00 2562 2018 3 2.53208e+01 8.97570e-01 3426 2018 4 2.58530e+01 8.30463e-01 2753 2018 5 2.60673e+01 1.13822e+00 745 2018 6 2.86457e+01 1.11433e+00 1688 2018 7 3.02627e+01 8.96641e-01 2044 2018 8 2.98929e+01 1.04142e+00 2525 2018 9 2.97763e+01 7.06189e-01 2273 2018 10 2.82006e+01 6.81129e-01 2739 2018 11 2.73388e+01 9.12670e-01 2197 2018 12 2.55049e+01 1.37176e+00 1945 2019 1 2.48035e+01 1.06067e+00 2415 2019 2 2.51355e+01 8.84913e-01 2699 2019 3 2.58681e+01 7.35914e-01 2260 2019 4 2.59306e+01 7.90296e-01 2689 2019 5 2.73025e+01 9.07323e-01 2929 2019 6 2.94780e+01 1.08701e+00 2498 2019 7 2.97810e+01 6.43292e-01 1602 2019 8 3.02775e+01 1.25388e+00 2071 2019 9 2.91519e+01 1.09327e+00 2309 2019 10 2.84562e+01 7.83453e-01 2526 2019 11 2.77902e+01 1.04190e+00 2575 2019 12 2.56686e+01 9.40131e-01 2241 2020 1 2.52491e+01 1.17855e+00 2487 2020 2 2.56746e+01 9.98591e-01 2080 2020 3 2.52050e+01 7.39446e-01 2969 2020 4 2.66813e+01 8.45265e-01 2331 2020 5 2.69884e+01 1.18557e+00 1792 2020 6 2.89518e+01 1.01342e+00 1629 2020 7 2.98688e+01 8.80348e-01 1989 2020 8 3.02080e+01 1.17660e+00 2042 2020 9 2.97691e+01 6.23020e-01 2046 2020 10 2.87937e+01 1.01967e+00 1619 2020 11 2.69663e+01 7.50094e-01 1391 2020 12 2.58287e+01 1.24326e+00 2184 2021 1 2.42005e+01 1.05717e+00 2051 2021 2 2.42493e+01 1.07772e+00 2812 2021 3 2.50067e+01 6.50606e-01 2559 2021 4 2.56788e+01 9.57802e-01 2523 2021 5 2.70195e+01 9.15427e-01 2506 2021 6 2.76970e+01 1.38677e+00 1090 2021 7 2.93333e+01 9.91687e-01 2481 2021 8 3.00075e+01 1.03119e+00 2242 2021 9 2.98154e+01 9.64936e-01 2576 2021 10 2.87345e+01 7.76639e-01 2465 2021 11 2.67091e+01 8.05464e-01 1834 2021 12 2.60346e+01 7.70374e-01 3005 2022 1 2.51149e+01 8.49365e-01 2024 2022 2 2.46164e+01 1.05167e+00 2291 2022 3 2.56116e+01 9.23186e-01 2948 2022 4 2.60994e+01 7.51408e-01 1158 2022 5 2.75364e+01 9.08947e-01 2607 2022 6 2.89717e+01 1.01307e+00 2188 2022 7 2.96596e+01 8.87984e-01 3125 2022 8 3.01696e+01 7.87594e-01 2705 2022 9 3.05231e+01 1.09702e+00 2483 2022 10 2.77917e+01 8.00413e-01 2327 2022 11 2.73474e+01 6.27662e-01 2542 2022 12 2.62899e+01 7.84359e-01 1747 2023 1 2.52319e+01 8.59999e-01 3406 2023 2 2.52680e+01 9.80104e-01 3094 2023 3 2.53911e+01 7.83384e-01 3039 2023 4 2.64653e+01 8.84611e-01 2039 2023 5 2.75317e+01 9.25021e-01 2571 2023 6 2.91106e+01 8.20887e-01 2063 2023 7 3.11288e+01 9.38754e-01 1803 2023 8 3.08826e+01 9.27999e-01 2152 2023 9 3.04339e+01 8.57464e-01 2150 2023 10 2.91905e+01 1.16103e+00 2463 2023 11 2.74442e+01 8.09933e-01 1790 2023 12 2.59678e+01 8.49434e-01 1245 2024 1 2.51906e+01 1.11007e+00 1346 2024 2 2.42057e+01 8.42917e-01 2238 2024 3 2.51031e+01 8.64665e-01 1863 2024 4 2.52562e+01 3.98129e-01 192