YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 2.53914e+01 3.09350e-01 192 2000 3 2.57890e+01 7.65040e-01 630 2000 4 2.61367e+01 1.02216e+00 571 2000 5 2.76961e+01 7.13562e-01 507 2000 6 2.74206e+01 7.16643e-01 233 2000 7 2.78989e+01 4.85648e-01 405 2000 8 2.90372e+01 4.78246e-01 192 2000 9 2.86543e+01 7.21340e-01 611 2000 10 2.89667e+01 4.77107e-01 686 2000 11 2.81663e+01 8.51244e-01 648 2000 12 2.73663e+01 5.68384e-01 642 2001 1 2.59985e+01 5.90782e-01 453 2001 2 2.57856e+01 6.02115e-01 585 2001 3 2.60888e+01 7.88902e-01 634 2001 4 2.65614e+01 9.06388e-01 557 2001 5 2.72209e+01 1.13732e+00 600 2001 6 2.75799e+01 5.14636e-01 141 2001 7 2.79651e+01 8.48809e-01 525 2001 8 2.81531e+01 7.30799e-01 621 2001 9 2.92054e+01 5.57782e-01 704 2001 10 2.88537e+01 6.03446e-01 628 2001 11 2.82483e+01 1.16622e+00 697 2001 12 2.72097e+01 6.84276e-01 357 2002 1 2.69936e+01 5.81081e-01 705 2002 2 2.64407e+01 7.36909e-01 723 2002 3 2.62844e+01 5.58416e-01 593 2002 4 2.66378e+01 5.41817e-01 455 2002 5 2.72927e+01 7.75973e-01 519 2002 6 2.70964e+01 5.77085e-01 183 2002 7 2.75749e+01 8.07576e-01 1588 2002 8 2.84143e+01 6.24305e-01 1059 2002 9 2.87524e+01 6.37918e-01 1798 2002 10 2.86992e+01 5.60425e-01 2576 2002 11 2.84138e+01 7.03916e-01 3229 2002 12 2.74763e+01 5.71136e-01 3136 2003 1 2.69437e+01 5.94896e-01 3041 2003 2 2.64557e+01 4.87628e-01 2074 2003 3 2.67361e+01 5.45041e-01 3359 2003 4 2.72136e+01 5.47035e-01 1940 2003 5 2.72954e+01 6.68105e-01 1860 2003 6 2.73138e+01 1.16090e+00 763 2003 7 2.72062e+01 6.59569e-01 1217 2003 8 2.80382e+01 8.38277e-01 1484 2003 9 2.88335e+01 7.78866e-01 1790 2003 10 2.93468e+01 8.36722e-01 2786 2003 11 2.81901e+01 8.88779e-01 1921 2003 12 2.73496e+01 6.40784e-01 2124 2004 1 2.67127e+01 5.97373e-01 2776 2004 2 2.65781e+01 5.61339e-01 2516 2004 3 2.62439e+01 5.69659e-01 2688 2004 4 2.71741e+01 7.90354e-01 2487 2004 5 2.68494e+01 9.69985e-01 1347 2004 6 2.73432e+01 6.53188e-01 957 2004 7 2.76130e+01 1.01415e+00 1316 2004 8 2.83781e+01 6.54702e-01 1781 2004 9 2.89135e+01 5.43888e-01 1508 2004 10 2.89111e+01 8.01022e-01 2177 2004 11 2.76097e+01 7.11475e-01 2181 2004 12 2.70693e+01 4.61899e-01 2478 2005 1 2.61204e+01 5.35921e-01 1820 2005 2 2.56862e+01 6.90223e-01 2673 2005 3 2.66718e+01 6.52954e-01 3413 2005 4 2.73841e+01 6.91592e-01 2372 2005 5 2.79996e+01 7.19625e-01 1727 2005 6 2.84450e+01 7.61414e-01 1323 2005 7 2.84977e+01 8.11588e-01 1439 2005 8 2.89789e+01 9.14812e-01 1533 2005 9 2.95612e+01 7.82815e-01 1901 2005 10 2.87443e+01 8.04935e-01 1181 2005 11 2.84266e+01 5.75449e-01 2211 2005 12 2.74663e+01 7.98484e-01 2980 2006 1 2.67178e+01 6.34178e-01 2105 2006 2 2.65226e+01 5.93649e-01 2649 2006 3 2.64507e+01 5.41392e-01 2457 2006 4 2.70578e+01 9.15542e-01 2224 2006 5 2.78045e+01 8.53829e-01 1968 2006 6 2.83122e+01 7.69027e-01 1200 2006 7 2.82692e+01 6.14075e-01 1635 2006 8 2.81807e+01 1.00195e+00 1740 2006 9 2.90835e+01 8.21319e-01 2527 2006 10 2.93487e+01 7.23521e-01 1835 2006 11 2.89113e+01 7.15949e-01 2933 2006 12 2.78263e+01 5.95456e-01 2782 2007 1 2.69546e+01 5.03580e-01 3026 2007 2 2.66506e+01 5.38811e-01 2598 2007 3 2.67413e+01 6.56957e-01 1780 2007 4 2.70772e+01 7.75794e-01 2701 2007 5 2.82431e+01 6.52475e-01 1786 2007 6 2.79576e+01 7.55062e-01 1248 2007 7 2.77855e+01 6.67400e-01 1244 2007 8 2.82937e+01 5.79300e-01 1512 2007 9 2.85649e+01 9.55170e-01 2378 2007 10 2.88863e+01 7.56854e-01 1570 2007 11 2.80468e+01 5.27052e-01 2092 2007 12 2.71766e+01 4.72948e-01 2928 2008 1 2.67866e+01 4.65210e-01 3417 2008 2 2.61557e+01 4.52793e-01 2379 2008 3 2.59957e+01 9.06499e-01 2416 2008 4 2.63624e+01 7.77543e-01 2333 2008 5 2.74897e+01 6.51778e-01 2103 2008 6 2.77619e+01 6.47620e-01 1401 2008 7 2.76724e+01 5.89998e-01 1897 2008 8 2.87266e+01 6.45767e-01 2101 2008 9 2.86188e+01 8.83359e-01 1376 2008 10 2.87383e+01 5.48620e-01 2573 2008 11 2.86229e+01 6.32182e-01 2226 2008 12 2.69513e+01 5.94430e-01 2856 2009 1 2.61068e+01 5.42830e-01 3151 2009 2 2.61624e+01 6.72296e-01 2252 2009 3 2.56705e+01 7.02088e-01 1892 2009 4 2.63752e+01 6.20737e-01 1811 2009 5 2.66978e+01 9.73536e-01 1198 2009 6 2.77820e+01 9.05160e-01 1133 2009 7 2.79417e+01 8.06409e-01 1302 2009 8 2.82482e+01 8.87500e-01 1935 2009 9 2.90547e+01 1.00114e+00 2269 2009 10 2.89716e+01 6.33324e-01 2629 2009 11 2.86350e+01 5.20157e-01 3140 2009 12 2.77826e+01 5.39688e-01 2672 2010 1 2.72457e+01 6.71061e-01 1843 2010 2 2.70853e+01 6.10899e-01 2396 2010 3 2.76315e+01 7.09973e-01 2608 2010 4 2.73102e+01 6.03650e-01 2000 2010 5 2.84269e+01 8.73695e-01 1217 2010 6 2.85842e+01 6.41965e-01 1565 2010 7 2.84791e+01 6.34095e-01 865 2010 8 2.90632e+01 7.82332e-01 2075 2010 9 2.91696e+01 6.35801e-01 1209 2010 10 2.90463e+01 8.78238e-01 1844 2010 11 2.75068e+01 5.63856e-01 1603 2010 12 2.73016e+01 8.74777e-01 1844 2011 1 2.62441e+01 5.19462e-01 2904 2011 2 2.61122e+01 5.78407e-01 2491 2011 3 2.59373e+01 8.12522e-01 2799 2011 4 2.65681e+01 7.40069e-01 2641 2011 5 2.73028e+01 7.44437e-01 1635 2011 6 2.83131e+01 7.04948e-01 900 2011 7 2.81882e+01 6.64011e-01 1551 2011 8 2.81637e+01 6.59998e-01 1624 2011 9 2.89464e+01 8.20954e-01 2031 2011 10 2.90762e+01 7.19193e-01 2301 2011 11 2.81380e+01 5.30584e-01 2137 2011 12 2.76395e+01 7.35574e-01 2721 2012 1 2.66946e+01 6.36258e-01 3056 2012 2 2.62168e+01 4.72082e-01 2308 2012 3 2.61021e+01 8.12824e-01 2259 2012 4 2.66463e+01 8.67498e-01 1920 2012 5 2.74733e+01 7.26008e-01 2085 2012 6 2.78750e+01 5.82062e-01 1842 2012 7 2.77862e+01 8.69367e-01 1280 2012 8 2.83253e+01 5.23497e-01 1184 2012 9 2.89002e+01 6.74837e-01 2811 2012 10 2.89147e+01 8.28999e-01 1661 2012 11 2.88802e+01 7.63154e-01 2823 2012 12 2.78215e+01 7.34386e-01 2526 2013 1 2.68357e+01 4.07973e-01 2500 2013 2 2.63523e+01 6.81030e-01 2996 2013 3 2.64791e+01 7.68949e-01 2026 2013 4 2.68952e+01 5.60434e-01 2072 2013 5 2.80502e+01 1.15217e+00 1454 2013 6 2.73549e+01 6.96327e-01 911 2013 7 2.79730e+01 9.05246e-01 1867 2013 8 2.84532e+01 7.56368e-01 1815 2013 9 2.93936e+01 6.73846e-01 1918 2013 10 2.93528e+01 9.78630e-01 2142 2013 11 2.83306e+01 5.43300e-01 2116 2013 12 2.73507e+01 5.99865e-01 2737 2014 1 2.67812e+01 4.38652e-01 2818 2014 2 2.64924e+01 5.09291e-01 2646 2014 3 2.67184e+01 5.67846e-01 3403 2014 4 2.70575e+01 6.88655e-01 2505 2014 5 2.73400e+01 7.81404e-01 1775 2014 6 2.75204e+01 1.12392e+00 1326 2014 7 2.76403e+01 8.00209e-01 1500 2014 8 2.79172e+01 7.61440e-01 1190 2014 9 2.91774e+01 7.17988e-01 1476 2014 10 2.92130e+01 7.59328e-01 2953 2014 11 2.87106e+01 6.99778e-01 2184 2014 12 2.76008e+01 7.27920e-01 2775 2015 1 2.68461e+01 5.65598e-01 3067 2015 2 2.69700e+01 4.59650e-01 2119 2015 3 2.67390e+01 5.77706e-01 2658 2015 4 2.69625e+01 5.97762e-01 2744 2015 5 2.71708e+01 5.41633e-01 1815 2015 6 2.76448e+01 7.66236e-01 1283 2015 7 2.74159e+01 7.07480e-01 1781 2015 8 2.79277e+01 9.39741e-01 1790 2015 9 2.88568e+01 7.82845e-01 2549 2015 10 2.93782e+01 1.14009e+00 2159 2015 11 2.85766e+01 6.70769e-01 1725 2015 12 2.77519e+01 6.25951e-01 2186 2016 1 2.70984e+01 5.10583e-01 2101 2016 2 2.69000e+01 5.75633e-01 2338 2016 3 2.67898e+01 5.86915e-01 2791 2016 4 2.74935e+01 7.37617e-01 2150 2016 5 2.81080e+01 6.53222e-01 1413 2016 6 2.80552e+01 6.14333e-01 1255 2016 7 2.83128e+01 5.36621e-01 1972 2016 8 2.86516e+01 5.60911e-01 2094 2016 9 2.94751e+01 6.45162e-01 2294 2016 10 2.91691e+01 1.23658e+00 1766 2016 11 2.90200e+01 4.58843e-01 1411 2016 12 2.79575e+01 5.96220e-01 3193 2017 1 2.69329e+01 5.58222e-01 2782 2017 2 2.66236e+01 4.71432e-01 2622 2017 3 2.66244e+01 5.43445e-01 2116 2017 4 2.72318e+01 6.64563e-01 2014 2017 5 2.78115e+01 7.30720e-01 1654 2017 6 2.80188e+01 7.34633e-01 1996 2017 7 2.85679e+01 6.81951e-01 1411 2017 8 2.87782e+01 5.87990e-01 2348 2017 9 2.85333e+01 1.41569e+00 711 2017 10 2.89192e+01 5.66736e-01 1869 2017 11 2.86015e+01 6.87251e-01 1675 2017 12 2.77989e+01 6.14495e-01 3367 2018 1 2.72311e+01 7.92637e-01 2366 2018 2 2.64038e+01 5.45304e-01 2014 2018 3 2.65012e+01 7.27342e-01 2957 2018 4 2.71322e+01 6.77074e-01 2329 2018 5 2.72273e+01 5.43804e-01 1878 2018 6 2.77469e+01 9.06240e-01 1326 2018 7 2.76207e+01 7.97861e-01 943 2018 8 2.83654e+01 6.02713e-01 1828 2018 9 2.87906e+01 5.79931e-01 1955 2018 10 2.88584e+01 9.19802e-01 1939 2018 11 2.82516e+01 5.12946e-01 3005 2018 12 2.75719e+01 6.02526e-01 2879 2019 1 2.66483e+01 4.65907e-01 2893 2019 2 2.64916e+01 5.81209e-01 2800 2019 3 2.65490e+01 5.84868e-01 2387 2019 4 2.70348e+01 5.55947e-01 2686 2019 5 2.75114e+01 6.70402e-01 1282 2019 6 2.79858e+01 7.72133e-01 1912 2019 7 2.80868e+01 7.95121e-01 2144 2019 8 2.85786e+01 6.95026e-01 2206 2019 9 2.92640e+01 8.50202e-01 1675 2019 10 2.95365e+01 5.38641e-01 2299 2019 11 2.89118e+01 5.35042e-01 2764 2019 12 2.82927e+01 7.75412e-01 2876 2020 1 2.72639e+01 6.74761e-01 2681 2020 2 2.69767e+01 4.74174e-01 2707 2020 3 2.69184e+01 6.80082e-01 2191 2020 4 2.75530e+01 7.53705e-01 2795 2020 5 2.80281e+01 8.49420e-01 2290 2020 6 2.86211e+01 8.44942e-01 1675 2020 7 2.88109e+01 7.64048e-01 1619 2020 8 2.88700e+01 6.90458e-01 2072 2020 9 2.94863e+01 9.03605e-01 2318 2020 10 2.94684e+01 6.71042e-01 2180 2020 11 2.82082e+01 9.86138e-01 1508 2020 12 2.76120e+01 6.35254e-01 2904 2021 1 2.68708e+01 6.11899e-01 2490 2021 2 2.68026e+01 5.49702e-01 2630 2021 3 2.64870e+01 6.54939e-01 2642 2021 4 2.68825e+01 7.39513e-01 1842 2021 5 2.72242e+01 6.84260e-01 2324 2021 6 2.77102e+01 7.61053e-01 1267 2021 7 2.78061e+01 6.10984e-01 1754 2021 8 2.83240e+01 6.50109e-01 1769 2021 9 2.92203e+01 8.24076e-01 2757 2021 10 2.95702e+01 6.77642e-01 2814 2021 11 2.87272e+01 5.32471e-01 2215 2021 12 2.75951e+01 6.74047e-01 2781 2022 1 2.70960e+01 4.95727e-01 3631 2022 2 2.67730e+01 5.62472e-01 2516 2022 3 2.66744e+01 7.18212e-01 2260 2022 4 2.67972e+01 6.31829e-01 1102 2022 5 2.73446e+01 1.05673e+00 1793 2022 6 2.79740e+01 7.82617e-01 1411 2022 7 2.78853e+01 5.02608e-01 1277 2022 8 2.84555e+01 7.27560e-01 1802 2022 9 2.91614e+01 6.53934e-01 1784 2022 10 2.92138e+01 5.70573e-01 1819 2022 11 2.79677e+01 5.56029e-01 2635 2022 12 2.71358e+01 4.58770e-01 3260 2023 1 2.67253e+01 5.61636e-01 2960 2023 2 2.61385e+01 4.85272e-01 2404 2023 3 2.63727e+01 6.87633e-01 2817 2023 4 2.69594e+01 7.45707e-01 2724 2023 5 2.83932e+01 8.33407e-01 2657 2023 6 2.88029e+01 5.11123e-01 1823 2023 7 2.87079e+01 7.14952e-01 1203 2023 8 2.91412e+01 7.46957e-01 1522 2023 9 2.96928e+01 8.89810e-01 2285 2023 10 3.00573e+01 7.16031e-01 2389 2023 11 2.90523e+01 9.90719e-01 2113 2023 12 2.82476e+01 5.38382e-01 3014 2024 1 2.75035e+01 4.12255e-01 3024 2024 2 2.71303e+01 7.46519e-01 2566 2024 3 2.73121e+01 5.49088e-01 2698 2024 4 2.75546e+01 8.38461e-01 195