YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 2.53568e+01 1.18131e-01 128 2000 3 2.51372e+01 5.56524e-01 645 2000 4 2.55328e+01 4.43987e-01 546 2000 5 2.67427e+01 6.26770e-01 672 2000 6 2.64710e+01 7.17509e-01 420 2000 7 2.70690e+01 8.59768e-01 577 2000 8 2.84098e+01 4.05624e-01 196 2000 9 2.86456e+01 4.18155e-01 676 2000 10 2.88781e+01 3.51824e-01 713 2000 11 2.79308e+01 8.35735e-01 918 2000 12 2.67153e+01 3.79112e-01 591 2001 1 2.60277e+01 7.43618e-01 660 2001 2 2.56190e+01 5.29375e-01 652 2001 3 2.55550e+01 6.82586e-01 593 2001 4 2.60502e+01 8.56944e-01 579 2001 5 2.66636e+01 1.13420e+00 640 2001 6 2.73489e+01 3.52720e-01 215 2001 7 2.77838e+01 8.39264e-01 627 2001 8 2.81083e+01 6.02964e-01 602 2001 9 2.88635e+01 7.38590e-01 623 2001 10 2.78356e+01 5.25484e-01 492 2001 11 2.82741e+01 5.86375e-01 501 2001 12 2.72016e+01 6.69455e-01 440 2002 1 2.61025e+01 5.50171e-01 694 2002 2 2.53286e+01 1.32074e+00 476 2002 3 2.60284e+01 5.66730e-01 499 2002 4 2.61575e+01 5.26752e-01 820 2002 5 2.66329e+01 7.85370e-01 678 2002 6 2.69159e+01 8.29471e-01 255 2002 7 2.73305e+01 7.62560e-01 2353 2002 8 2.81350e+01 6.96618e-01 2080 2002 9 2.87513e+01 8.12472e-01 2240 2002 10 2.86100e+01 5.80725e-01 2395 2002 11 2.82277e+01 5.76768e-01 3332 2002 12 2.71518e+01 6.29446e-01 2977 2003 1 2.65719e+01 5.00291e-01 3092 2003 2 2.61727e+01 6.23935e-01 2428 2003 3 2.63736e+01 6.31078e-01 3159 2003 4 2.68023e+01 7.26933e-01 1784 2003 5 2.68436e+01 7.86067e-01 2053 2003 6 2.64601e+01 9.51899e-01 901 2003 7 2.69141e+01 8.29292e-01 1484 2003 8 2.79193e+01 5.94370e-01 2241 2003 9 2.85407e+01 7.86402e-01 1930 2003 10 2.88824e+01 8.08858e-01 2735 2003 11 2.77962e+01 7.99144e-01 1898 2003 12 2.68997e+01 6.16503e-01 1944 2004 1 2.65540e+01 6.87337e-01 3189 2004 2 2.62618e+01 6.39353e-01 2731 2004 3 2.59456e+01 5.58168e-01 2821 2004 4 2.68375e+01 6.71079e-01 2964 2004 5 2.65711e+01 8.32178e-01 1682 2004 6 2.70504e+01 7.70613e-01 1845 2004 7 2.73219e+01 7.65121e-01 1837 2004 8 2.80389e+01 8.60522e-01 2113 2004 9 2.86706e+01 7.14942e-01 1663 2004 10 2.90283e+01 8.60763e-01 1932 2004 11 2.75596e+01 7.32389e-01 1746 2004 12 2.67622e+01 5.05480e-01 2824 2005 1 2.58973e+01 6.36323e-01 2203 2005 2 2.51953e+01 6.79419e-01 2564 2005 3 2.59036e+01 8.82379e-01 3365 2005 4 2.71335e+01 8.89781e-01 2438 2005 5 2.79151e+01 7.19771e-01 1940 2005 6 2.82429e+01 8.69363e-01 1765 2005 7 2.82609e+01 8.97298e-01 1648 2005 8 2.91066e+01 7.62879e-01 1688 2005 9 2.96513e+01 6.35877e-01 2178 2005 10 2.87021e+01 1.09528e+00 1396 2005 11 2.81607e+01 6.94926e-01 2644 2005 12 2.69623e+01 6.15568e-01 2808 2006 1 2.62926e+01 4.69284e-01 2510 2006 2 2.58522e+01 6.46635e-01 2605 2006 3 2.61456e+01 6.21824e-01 2913 2006 4 2.70846e+01 7.63520e-01 3016 2006 5 2.75436e+01 8.79492e-01 2365 2006 6 2.80371e+01 7.74477e-01 1271 2006 7 2.75790e+01 9.88806e-01 1421 2006 8 2.78429e+01 8.22148e-01 2081 2006 9 2.88748e+01 9.33211e-01 2613 2006 10 2.86063e+01 9.79142e-01 1912 2006 11 2.80951e+01 5.79212e-01 3140 2006 12 2.72838e+01 7.59324e-01 2845 2007 1 2.63474e+01 4.51394e-01 3291 2007 2 2.62782e+01 4.90944e-01 2980 2007 3 2.61988e+01 7.00940e-01 2719 2007 4 2.66873e+01 8.85163e-01 2401 2007 5 2.76027e+01 7.86176e-01 1879 2007 6 2.79512e+01 8.22196e-01 1958 2007 7 2.77048e+01 6.85253e-01 1741 2007 8 2.80665e+01 8.80793e-01 1778 2007 9 2.86406e+01 7.75058e-01 2066 2007 10 2.85601e+01 8.06562e-01 1566 2007 11 2.80490e+01 6.44600e-01 2322 2007 12 2.67476e+01 5.80846e-01 2581 2008 1 2.64214e+01 4.58142e-01 3208 2008 2 2.54753e+01 5.94336e-01 2886 2008 3 2.55503e+01 5.82748e-01 2674 2008 4 2.58372e+01 5.19402e-01 2640 2008 5 2.67888e+01 7.46406e-01 2818 2008 6 2.76607e+01 8.06808e-01 1518 2008 7 2.73866e+01 8.49397e-01 2190 2008 8 2.81114e+01 7.56082e-01 1740 2008 9 2.85238e+01 8.79295e-01 1466 2008 10 2.85670e+01 5.85352e-01 2648 2008 11 2.77940e+01 9.93130e-01 2472 2008 12 2.62863e+01 6.47261e-01 2779 2009 1 2.57222e+01 5.70309e-01 3373 2009 2 2.53325e+01 1.13387e+00 2364 2009 3 2.50954e+01 8.00968e-01 2128 2009 4 2.60627e+01 6.36560e-01 3205 2009 5 2.68934e+01 8.24893e-01 1265 2009 6 2.73672e+01 7.36039e-01 1637 2009 7 2.75421e+01 8.79654e-01 1262 2009 8 2.79352e+01 8.12600e-01 1942 2009 9 2.89184e+01 7.28269e-01 2277 2009 10 2.85904e+01 6.73229e-01 2778 2009 11 2.81738e+01 5.73913e-01 2383 2009 12 2.75936e+01 5.55350e-01 2591 2010 1 2.69192e+01 5.23943e-01 2609 2010 2 2.68512e+01 5.06600e-01 2772 2010 3 2.70891e+01 6.13966e-01 2374 2010 4 2.69518e+01 9.90319e-01 1796 2010 5 2.80804e+01 7.61786e-01 1639 2010 6 2.82856e+01 6.99226e-01 1264 2010 7 2.80480e+01 9.00623e-01 1330 2010 8 2.91473e+01 7.79351e-01 1943 2010 9 2.86983e+01 7.63252e-01 1712 2010 10 2.86468e+01 7.20191e-01 2477 2010 11 2.74482e+01 5.62585e-01 1724 2010 12 2.67918e+01 6.81986e-01 1983 2011 1 2.58368e+01 4.89792e-01 3257 2011 2 2.59298e+01 4.53145e-01 2747 2011 3 2.55310e+01 5.35316e-01 2888 2011 4 2.64112e+01 8.51129e-01 2672 2011 5 2.72167e+01 9.63138e-01 1311 2011 6 2.80948e+01 9.02966e-01 1207 2011 7 2.80336e+01 8.26913e-01 1328 2011 8 2.82216e+01 5.44145e-01 1890 2011 9 2.84212e+01 9.22263e-01 1781 2011 10 2.86314e+01 6.27530e-01 3101 2011 11 2.80601e+01 5.16322e-01 2268 2011 12 2.71086e+01 7.46463e-01 2374 2012 1 2.60652e+01 6.48982e-01 2982 2012 2 2.57958e+01 7.26869e-01 2774 2012 3 2.58970e+01 4.81418e-01 2306 2012 4 2.63134e+01 9.49316e-01 2455 2012 5 2.65464e+01 8.83383e-01 2063 2012 6 2.74777e+01 9.05148e-01 1857 2012 7 2.75747e+01 7.12541e-01 1776 2012 8 2.76579e+01 7.65021e-01 1782 2012 9 2.86155e+01 8.85302e-01 2426 2012 10 2.88772e+01 8.46037e-01 1873 2012 11 2.84181e+01 6.31116e-01 2473 2012 12 2.73816e+01 6.13854e-01 2457 2013 1 2.61910e+01 5.76784e-01 2461 2013 2 2.57301e+01 5.00291e-01 2797 2013 3 2.61285e+01 7.28792e-01 2663 2013 4 2.65186e+01 5.50023e-01 2808 2013 5 2.73719e+01 6.95536e-01 1924 2013 6 2.67554e+01 7.11515e-01 973 2013 7 2.76455e+01 8.28698e-01 2202 2013 8 2.82794e+01 7.18551e-01 2163 2013 9 2.89226e+01 9.01335e-01 2215 2013 10 2.91635e+01 7.16855e-01 1581 2013 11 2.80322e+01 6.41237e-01 2083 2013 12 2.70613e+01 5.84400e-01 2468 2014 1 2.61563e+01 5.13551e-01 3373 2014 2 2.58961e+01 4.23772e-01 3015 2014 3 2.62953e+01 5.89266e-01 3508 2014 4 2.65414e+01 5.85273e-01 2873 2014 5 2.70691e+01 6.51139e-01 1839 2014 6 2.68451e+01 1.23773e+00 1574 2014 7 2.74208e+01 7.18850e-01 1640 2014 8 2.75317e+01 8.88492e-01 1874 2014 9 2.85302e+01 8.86873e-01 2323 2014 10 2.87160e+01 7.47292e-01 2791 2014 11 2.81731e+01 7.57531e-01 2218 2014 12 2.71846e+01 5.25163e-01 2805 2015 1 2.64968e+01 5.79727e-01 3553 2015 2 2.65557e+01 5.58774e-01 2766 2015 3 2.61705e+01 5.42273e-01 2586 2015 4 2.62659e+01 5.87302e-01 3011 2015 5 2.70271e+01 7.38181e-01 2156 2015 6 2.72216e+01 8.63987e-01 1025 2015 7 2.72252e+01 6.76795e-01 1689 2015 8 2.77839e+01 7.68952e-01 2595 2015 9 2.88412e+01 7.77014e-01 2475 2015 10 2.93048e+01 7.77898e-01 2218 2015 11 2.82062e+01 8.33802e-01 1535 2015 12 2.69977e+01 6.56331e-01 2076 2016 1 2.66055e+01 8.21579e-01 2665 2016 2 2.63526e+01 6.53097e-01 2589 2016 3 2.63608e+01 5.86610e-01 2855 2016 4 2.68695e+01 8.50690e-01 2200 2016 5 2.75080e+01 5.64884e-01 1200 2016 6 2.76554e+01 1.14435e+00 1284 2016 7 2.78988e+01 6.38827e-01 1975 2016 8 2.84901e+01 6.11912e-01 2647 2016 9 2.89437e+01 8.87267e-01 2430 2016 10 2.87482e+01 9.24536e-01 2105 2016 11 2.85989e+01 9.15633e-01 1447 2016 12 2.74975e+01 7.99704e-01 2423 2017 1 2.63824e+01 5.79295e-01 2987 2017 2 2.64093e+01 6.28609e-01 2488 2017 3 2.62359e+01 6.54644e-01 2338 2017 4 2.66127e+01 8.48339e-01 1929 2017 5 2.70002e+01 7.35732e-01 1863 2017 6 2.78766e+01 7.16235e-01 2061 2017 7 2.81873e+01 6.86102e-01 1981 2017 8 2.83497e+01 5.56192e-01 2357 2017 9 2.80995e+01 1.22312e+00 1147 2017 10 2.81897e+01 7.89901e-01 1751 2017 11 2.81770e+01 6.18365e-01 2237 2017 12 2.74655e+01 6.23617e-01 2556 2018 1 2.65048e+01 5.54869e-01 2664 2018 2 2.59924e+01 4.16998e-01 2353 2018 3 2.63022e+01 6.85591e-01 3316 2018 4 2.65302e+01 6.36256e-01 2847 2018 5 2.68562e+01 6.14312e-01 2883 2018 6 2.71144e+01 8.49158e-01 1537 2018 7 2.71703e+01 4.89927e-01 942 2018 8 2.80966e+01 5.97280e-01 2608 2018 9 2.84970e+01 7.64952e-01 2212 2018 10 2.85786e+01 9.54635e-01 2153 2018 11 2.77417e+01 7.41010e-01 2639 2018 12 2.70719e+01 6.67602e-01 2741 2019 1 2.63227e+01 4.90394e-01 2941 2019 2 2.60983e+01 4.41846e-01 2988 2019 3 2.60247e+01 9.50277e-01 3102 2019 4 2.65396e+01 5.87059e-01 2827 2019 5 2.69065e+01 1.10542e+00 1481 2019 6 2.73851e+01 7.17339e-01 2349 2019 7 2.79827e+01 7.88066e-01 2103 2019 8 2.82667e+01 6.79834e-01 2859 2019 9 2.87609e+01 1.01138e+00 2150 2019 10 2.91476e+01 7.51469e-01 3194 2019 11 2.84200e+01 6.51442e-01 2871 2019 12 2.78457e+01 1.03313e+00 2488 2020 1 2.68682e+01 6.38000e-01 2193 2020 2 2.62820e+01 5.92711e-01 3063 2020 3 2.63909e+01 5.68710e-01 2703 2020 4 2.70740e+01 5.65424e-01 3451 2020 5 2.76700e+01 7.18835e-01 2562 2020 6 2.82496e+01 8.43422e-01 2609 2020 7 2.83997e+01 7.82402e-01 1855 2020 8 2.84796e+01 5.96535e-01 2252 2020 9 2.93000e+01 6.72746e-01 2234 2020 10 2.90354e+01 5.67455e-01 2219 2020 11 2.78757e+01 6.12566e-01 2511 2020 12 2.71855e+01 6.53227e-01 3151 2021 1 2.64363e+01 4.71360e-01 2681 2021 2 2.61226e+01 4.54402e-01 2878 2021 3 2.61557e+01 7.81095e-01 3449 2021 4 2.64281e+01 7.15177e-01 2221 2021 5 2.66027e+01 7.80829e-01 2364 2021 6 2.74311e+01 8.30951e-01 917 2021 7 2.76610e+01 7.37655e-01 1746 2021 8 2.78751e+01 6.21456e-01 2112 2021 9 2.89656e+01 9.18171e-01 2783 2021 10 2.89441e+01 8.34470e-01 2278 2021 11 2.82640e+01 5.73246e-01 2457 2021 12 2.74327e+01 4.94275e-01 3548 2022 1 2.66313e+01 7.06721e-01 3508 2022 2 2.62006e+01 5.08486e-01 2634 2022 3 2.60145e+01 6.39588e-01 2450 2022 4 2.65638e+01 6.76530e-01 1542 2022 5 2.69150e+01 9.31977e-01 2006 2022 6 2.78542e+01 7.26750e-01 2258 2022 7 2.76394e+01 6.67699e-01 1937 2022 8 2.82994e+01 8.18194e-01 2641 2022 9 2.87553e+01 6.62877e-01 1853 2022 10 2.87649e+01 6.79404e-01 1841 2022 11 2.78407e+01 6.34283e-01 2719 2022 12 2.67713e+01 5.64652e-01 3389 2023 1 2.62866e+01 7.19089e-01 2619 2023 2 2.58132e+01 4.81376e-01 2838 2023 3 2.61633e+01 7.22575e-01 3382 2023 4 2.67142e+01 7.34794e-01 2743 2023 5 2.78153e+01 5.55889e-01 2830 2023 6 2.82169e+01 6.70087e-01 2451 2023 7 2.84274e+01 6.22650e-01 1656 2023 8 2.93244e+01 7.62559e-01 2075 2023 9 2.96382e+01 6.58228e-01 2487 2023 10 2.93974e+01 7.09582e-01 2754 2023 11 2.85354e+01 6.35785e-01 2228 2023 12 2.77376e+01 6.57708e-01 3349 2024 1 2.68290e+01 5.68260e-01 2602 2024 2 2.69107e+01 4.61316e-01 2382 2024 3 2.70303e+01 5.59101e-01 3454 2024 4 2.73233e+01 1.58964e-01 395