YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 2.45474e+01 1.09636e+00 123 2000 3 2.47858e+01 7.51375e-01 554 2000 4 2.54778e+01 4.15096e-01 752 2000 5 2.66686e+01 1.06756e+00 521 2000 6 2.82116e+01 4.86523e-01 289 2000 7 2.95116e+01 5.98936e-01 690 2000 8 2.91148e+01 9.72779e-01 448 2000 9 2.96456e+01 4.53641e-01 294 2000 10 2.75011e+01 5.77678e-01 330 2000 11 2.67004e+01 4.98700e-01 539 2000 12 2.46652e+01 7.22021e-01 462 2001 1 2.39710e+01 1.07913e+00 562 2001 2 2.40149e+01 9.14663e-01 765 2001 3 2.45648e+01 6.09704e-01 704 2001 4 2.57621e+01 6.22584e-01 841 2001 5 2.60214e+01 9.41014e-01 379 2001 6 2.76086e+01 1.82293e+00 362 2001 7 2.72133e+01 1.39846e+00 383 2001 8 2.82688e+01 1.57568e+00 663 2001 9 2.87128e+01 1.35022e+00 203 2001 10 2.69882e+01 1.46174e+00 418 2001 11 2.61979e+01 9.31370e-01 398 2001 12 2.56446e+01 5.49359e-01 634 2002 1 2.38674e+01 7.63737e-01 887 2002 2 2.41130e+01 2.32917e-01 179 2002 3 2.53744e+01 1.53095e+00 513 2002 4 2.69877e+01 6.91397e-01 683 2002 5 2.71198e+01 7.06825e-01 764 2002 6 2.82861e+01 6.76119e-01 221 2002 7 2.87637e+01 1.22276e+00 2244 2002 8 2.95533e+01 7.97627e-01 1743 2002 9 2.87138e+01 8.03827e-01 1903 2002 10 2.79790e+01 7.29976e-01 3268 2002 11 2.72872e+01 9.77018e-01 1982 2002 12 2.55238e+01 1.18849e+00 1796 2003 1 2.38499e+01 1.31939e+00 2234 2003 2 2.39220e+01 1.11846e+00 2316 2003 3 2.57950e+01 8.12251e-01 2353 2003 4 2.57108e+01 1.12304e+00 2675 2003 5 2.74643e+01 1.04584e+00 2441 2003 6 2.83916e+01 6.79115e-01 810 2003 7 2.86621e+01 7.35807e-01 1701 2003 8 2.94647e+01 1.02678e+00 2401 2003 9 2.90047e+01 8.71766e-01 1858 2003 10 2.83903e+01 9.44775e-01 2541 2003 11 2.72592e+01 6.35745e-01 1596 2003 12 2.52553e+01 1.00399e+00 1641 2004 1 2.52400e+01 8.76815e-01 2317 2004 2 2.45426e+01 8.41813e-01 1705 2004 3 2.47081e+01 1.06799e+00 2231 2004 4 2.49960e+01 8.51059e-01 2576 2004 5 2.64445e+01 1.28327e+00 2621 2004 6 2.88259e+01 9.35789e-01 2386 2004 7 2.89669e+01 1.05726e+00 2654 2004 8 3.00637e+01 9.50267e-01 1928 2004 9 2.90248e+01 9.34304e-01 1978 2004 10 2.80602e+01 8.09884e-01 2178 2004 11 2.68803e+01 9.29246e-01 2130 2004 12 2.60734e+01 1.39364e+00 1331 2005 1 2.43151e+01 1.02575e+00 2511 2005 2 2.39738e+01 1.02711e+00 1884 2005 3 2.40875e+01 9.30578e-01 2450 2005 4 2.43207e+01 7.91052e-01 2530 2005 5 2.63679e+01 1.58226e+00 2395 2005 6 2.79267e+01 1.61668e+00 1485 2005 7 2.90869e+01 1.28615e+00 2691 2005 8 2.97698e+01 1.23524e+00 2480 2005 9 2.90559e+01 1.07310e+00 2683 2005 10 2.79679e+01 1.03408e+00 1450 2005 11 2.59311e+01 7.18233e-01 2733 2005 12 2.45828e+01 1.02342e+00 2518 2006 1 2.37163e+01 9.22004e-01 1789 2006 2 2.44474e+01 9.03387e-01 2290 2006 3 2.51107e+01 1.18075e+00 2608 2006 4 2.59874e+01 9.96991e-01 3322 2006 5 2.72753e+01 8.73359e-01 2693 2006 6 2.85377e+01 9.92499e-01 2067 2006 7 2.88489e+01 1.29681e+00 1518 2006 8 2.97187e+01 8.55910e-01 2013 2006 9 3.00897e+01 1.05677e+00 1979 2006 10 2.86065e+01 1.14497e+00 2084 2006 11 2.66709e+01 1.20269e+00 1670 2006 12 2.53940e+01 1.03900e+00 889 2007 1 2.49493e+01 7.23334e-01 2161 2007 2 2.42772e+01 9.34996e-01 1532 2007 3 2.45967e+01 5.68209e-01 1890 2007 4 2.56496e+01 1.03158e+00 2971 2007 5 2.69945e+01 1.03930e+00 2735 2007 6 2.80448e+01 1.35267e+00 2004 2007 7 2.98949e+01 9.71431e-01 2804 2007 8 2.96128e+01 7.79446e-01 2555 2007 9 2.95190e+01 1.07557e+00 1866 2007 10 2.78537e+01 1.02536e+00 1387 2007 11 2.65301e+01 9.34801e-01 2381 2007 12 2.56403e+01 7.60303e-01 2176 2008 1 2.46494e+01 8.98726e-01 1862 2008 2 2.45922e+01 1.13544e+00 2295 2008 3 2.45494e+01 9.04248e-01 1953 2008 4 2.60405e+01 9.12771e-01 3119 2008 5 2.69099e+01 1.16206e+00 3425 2008 6 2.80655e+01 9.45239e-01 2139 2008 7 2.86152e+01 1.02150e+00 2593 2008 8 2.95993e+01 1.04102e+00 2318 2008 9 2.82924e+01 9.12578e-01 2225 2008 10 2.80561e+01 1.14296e+00 1115 2008 11 2.60076e+01 7.78133e-01 2014 2008 12 2.47815e+01 9.80082e-01 2146 2009 1 2.38144e+01 1.01072e+00 2340 2009 2 2.34275e+01 1.07941e+00 2037 2009 3 2.44994e+01 7.68781e-01 1848 2009 4 2.50427e+01 6.68596e-01 3169 2009 5 2.67619e+01 1.02902e+00 3150 2009 6 2.91020e+01 1.35885e+00 2094 2009 7 2.94038e+01 1.18283e+00 2386 2009 8 2.94925e+01 9.53781e-01 2778 2009 9 2.97971e+01 1.09149e+00 1922 2009 10 2.90708e+01 1.17503e+00 2766 2009 11 2.75032e+01 1.04893e+00 1792 2009 12 2.58174e+01 9.17748e-01 2041 2010 1 2.43869e+01 1.45808e+00 1975 2010 2 2.33374e+01 1.03939e+00 1567 2010 3 2.31442e+01 1.06606e+00 1909 2010 4 2.47309e+01 8.75848e-01 2266 2010 5 2.73986e+01 1.44895e+00 3101 2010 6 2.96846e+01 9.60360e-01 2769 2010 7 2.90135e+01 1.08083e+00 1739 2010 8 3.00449e+01 9.23666e-01 1808 2010 9 2.93850e+01 7.14584e-01 1936 2010 10 2.78765e+01 8.94414e-01 2827 2010 11 2.69463e+01 1.14385e+00 2298 2010 12 2.50350e+01 1.46191e+00 3388 2011 1 2.28850e+01 1.12579e+00 2551 2011 2 2.32174e+01 8.66962e-01 2991 2011 3 2.48965e+01 1.09976e+00 2539 2011 4 2.61436e+01 8.63642e-01 3502 2011 5 2.70753e+01 8.59789e-01 3293 2011 6 2.84737e+01 1.23133e+00 2297 2011 7 2.94784e+01 1.09391e+00 2253 2011 8 2.99934e+01 1.03422e+00 1938 2011 9 2.96983e+01 1.06586e+00 2477 2011 10 2.85204e+01 9.94394e-01 1086 2011 11 2.62011e+01 9.05206e-01 2135 2011 12 2.51948e+01 1.06738e+00 2062 2012 1 2.44009e+01 7.71024e-01 2126 2012 2 2.43040e+01 1.00312e+00 1617 2012 3 2.51439e+01 9.03634e-01 2809 2012 4 2.61437e+01 8.97576e-01 2387 2012 5 2.63672e+01 1.23440e+00 1918 2012 6 2.81021e+01 1.52760e+00 1681 2012 7 2.85472e+01 1.22110e+00 2237 2012 8 2.93216e+01 1.13136e+00 1934 2012 9 2.92353e+01 1.18113e+00 1589 2012 10 2.84209e+01 7.54131e-01 2188 2012 11 2.72247e+01 1.02604e+00 2403 2012 12 2.56772e+01 9.75994e-01 1674 2013 1 2.46059e+01 9.72089e-01 1559 2013 2 2.45880e+01 8.39913e-01 2128 2013 3 2.45978e+01 9.84000e-01 2164 2013 4 2.57273e+01 1.17213e+00 2649 2013 5 2.68498e+01 6.52823e-01 2802 2013 6 2.81404e+01 6.82594e-01 1391 2013 7 2.89078e+01 1.01776e+00 1751 2013 8 2.89365e+01 9.40753e-01 1758 2013 9 2.90594e+01 7.12948e-01 1641 2013 10 2.84244e+01 7.84663e-01 2294 2013 11 2.74897e+01 1.04383e+00 1262 2013 12 2.61314e+01 9.00983e-01 1936 2014 1 2.54101e+01 1.21419e+00 1844 2014 2 2.53622e+01 8.45968e-01 2796 2014 3 2.49163e+01 9.01956e-01 2551 2014 4 2.58420e+01 1.40019e+00 2659 2014 5 2.65997e+01 8.94764e-01 2004 2014 6 2.84570e+01 1.25529e+00 2366 2014 7 2.95063e+01 8.41658e-01 2550 2014 8 3.05472e+01 7.88747e-01 3175 2014 9 2.97271e+01 1.03061e+00 1268 2014 10 2.84624e+01 1.35946e+00 2326 2014 11 2.66896e+01 8.24313e-01 2579 2014 12 2.58369e+01 8.40160e-01 1941 2015 1 2.51609e+01 9.09923e-01 2157 2015 2 2.41550e+01 1.07736e+00 2332 2015 3 2.48857e+01 1.14504e+00 3257 2015 4 2.64636e+01 1.55556e+00 2546 2015 5 2.73335e+01 8.61208e-01 3017 2015 6 2.86626e+01 1.15075e+00 2370 2015 7 2.95795e+01 1.12483e+00 2310 2015 8 3.02801e+01 9.40920e-01 2525 2015 9 3.04117e+01 9.98946e-01 1745 2015 10 2.85632e+01 8.94525e-01 2125 2015 11 2.78218e+01 9.77720e-01 2692 2015 12 2.61227e+01 7.80011e-01 1987 2016 1 2.59522e+01 1.43811e+00 823 2016 2 2.53328e+01 1.05441e+00 1379 2016 3 2.52155e+01 1.41157e+00 1519 2016 4 2.63837e+01 9.89342e-01 2496 2016 5 2.78287e+01 1.15289e+00 3097 2016 6 2.89705e+01 8.07326e-01 1920 2016 7 2.93608e+01 8.61845e-01 2583 2016 8 2.97896e+01 1.03281e+00 2308 2016 9 2.95751e+01 1.01636e+00 2562 2016 10 2.92418e+01 6.09039e-01 1803 2016 11 2.73298e+01 1.04580e+00 1688 2016 12 2.61539e+01 9.77326e-01 2099 2017 1 2.52350e+01 8.78525e-01 1493 2017 2 2.49921e+01 8.39711e-01 2454 2017 3 2.57766e+01 7.47209e-01 2234 2017 4 2.59855e+01 8.29193e-01 1831 2017 5 2.73327e+01 1.26729e+00 2403 2017 6 2.84854e+01 1.18602e+00 1639 2017 7 2.93988e+01 7.57776e-01 2323 2017 8 2.99141e+01 9.89526e-01 2448 2017 9 2.97932e+01 9.95591e-01 2523 2017 10 2.84586e+01 8.51742e-01 2257 2017 11 2.68658e+01 6.74869e-01 2672 2017 12 2.59878e+01 1.11120e+00 3431 2018 1 2.43243e+01 1.17979e+00 1384 2018 2 2.44789e+01 1.23542e+00 2611 2018 3 2.55100e+01 1.01804e+00 3286 2018 4 2.59410e+01 7.78357e-01 3230 2018 5 2.58379e+01 1.17823e+00 621 2018 6 2.87568e+01 1.13558e+00 1908 2018 7 3.00189e+01 1.20616e+00 1989 2018 8 2.95919e+01 1.02091e+00 3116 2018 9 2.95802e+01 7.72349e-01 2422 2018 10 2.83159e+01 7.24115e-01 3089 2018 11 2.75310e+01 8.22271e-01 2246 2018 12 2.59949e+01 1.52425e+00 1796 2019 1 2.52096e+01 1.07679e+00 2383 2019 2 2.53026e+01 9.63520e-01 2977 2019 3 2.61919e+01 8.23761e-01 2876 2019 4 2.59776e+01 7.09583e-01 2891 2019 5 2.73714e+01 7.50129e-01 2940 2019 6 2.96085e+01 1.22018e+00 2214 2019 7 2.98074e+01 1.17036e+00 2790 2019 8 3.02066e+01 9.16202e-01 2123 2019 9 2.92485e+01 1.15532e+00 2264 2019 10 2.86249e+01 9.22583e-01 2773 2019 11 2.77533e+01 1.10427e+00 2455 2019 12 2.57705e+01 1.34776e+00 1939 2020 1 2.54626e+01 1.00984e+00 2516 2020 2 2.59754e+01 9.74924e-01 1887 2020 3 2.53191e+01 9.31621e-01 2943 2020 4 2.72211e+01 9.14943e-01 2678 2020 5 2.80155e+01 9.36330e-01 1668 2020 6 2.92146e+01 6.98886e-01 1820 2020 7 2.97202e+01 1.23096e+00 2114 2020 8 2.99319e+01 9.01508e-01 2512 2020 9 2.97775e+01 8.15054e-01 1883 2020 10 2.87204e+01 1.14573e+00 1870 2020 11 2.71379e+01 8.12742e-01 1862 2020 12 2.60538e+01 1.19011e+00 2297 2021 1 2.45725e+01 1.11082e+00 2352 2021 2 2.46409e+01 1.04439e+00 2672 2021 3 2.51771e+01 7.59836e-01 2817 2021 4 2.61190e+01 9.32377e-01 2464 2021 5 2.75091e+01 1.07726e+00 2776 2021 6 2.79494e+01 9.49585e-01 1248 2021 7 2.93404e+01 1.26064e+00 2663 2021 8 2.98384e+01 9.71333e-01 2129 2021 9 2.99767e+01 9.87404e-01 2631 2021 10 2.88390e+01 9.34865e-01 2407 2021 11 2.69532e+01 9.08473e-01 1994 2021 12 2.61874e+01 9.04345e-01 3037 2022 1 2.56756e+01 8.04262e-01 1845 2022 2 2.47952e+01 1.27082e+00 2593 2022 3 2.59552e+01 7.84423e-01 2713 2022 4 2.60592e+01 9.78326e-01 1393 2022 5 2.74367e+01 9.19192e-01 3241 2022 6 2.89167e+01 1.11736e+00 2203 2022 7 2.94830e+01 9.54690e-01 2560 2022 8 3.01510e+01 9.82557e-01 2688 2022 9 3.02219e+01 1.20133e+00 2536 2022 10 2.81293e+01 8.53219e-01 1947 2022 11 2.73516e+01 7.51543e-01 2881 2022 12 2.66777e+01 6.87295e-01 2001 2023 1 2.57921e+01 1.09781e+00 2674 2023 2 2.55929e+01 1.00767e+00 2599 2023 3 2.57018e+01 8.64761e-01 2900 2023 4 2.65537e+01 1.04904e+00 2720 2023 5 2.79240e+01 9.47481e-01 2451 2023 6 2.93511e+01 1.30409e+00 1895 2023 7 3.07431e+01 9.15685e-01 2372 2023 8 3.09166e+01 7.95869e-01 2104 2023 9 3.08378e+01 9.54889e-01 1947 2023 10 2.93447e+01 1.10767e+00 2687 2023 11 2.77734e+01 1.10725e+00 1863 2023 12 2.63678e+01 7.05529e-01 1235 2024 1 2.56506e+01 6.21334e-01 1549 2024 2 2.42575e+01 8.59509e-01 2048 2024 3 2.55800e+01 1.02981e+00 1768 2024 4 nan nan 0