YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 2.53353e+01 5.77252e-01 159 2000 3 2.58408e+01 1.17474e+00 550 2000 4 2.62453e+01 5.95871e-01 456 2000 5 2.76850e+01 7.72321e-01 495 2000 6 2.74234e+01 9.81066e-01 331 2000 7 2.79716e+01 5.46229e-01 460 2000 8 2.89002e+01 4.96266e-01 255 2000 9 2.89074e+01 7.84063e-01 582 2000 10 2.89799e+01 4.82929e-01 598 2000 11 2.82699e+01 7.00238e-01 779 2000 12 2.73780e+01 6.07899e-01 703 2001 1 2.62908e+01 3.73439e-01 625 2001 2 2.60975e+01 6.10498e-01 565 2001 3 2.62599e+01 7.16729e-01 782 2001 4 2.67103e+01 8.17144e-01 662 2001 5 2.75185e+01 7.74031e-01 404 2001 6 2.66862e+01 1.52648e+00 223 2001 7 2.79927e+01 9.17699e-01 425 2001 8 2.82066e+01 7.86443e-01 790 2001 9 2.91431e+01 7.00591e-01 832 2001 10 2.93015e+01 8.61563e-01 670 2001 11 2.84428e+01 7.87101e-01 565 2001 12 2.73719e+01 4.10330e-01 707 2002 1 2.71134e+01 5.77949e-01 655 2002 2 2.65698e+01 5.36070e-01 689 2002 3 2.64206e+01 5.52530e-01 694 2002 4 2.65769e+01 5.57770e-01 449 2002 5 2.75813e+01 6.32152e-01 665 2002 6 2.74706e+01 7.86013e-01 279 2002 7 2.77657e+01 6.52819e-01 1755 2002 8 2.86243e+01 7.98197e-01 1371 2002 9 2.87879e+01 6.60938e-01 1609 2002 10 2.88057e+01 4.86995e-01 2749 2002 11 2.85102e+01 5.24029e-01 2940 2002 12 2.74420e+01 7.20323e-01 3086 2003 1 2.70220e+01 4.09781e-01 2827 2003 2 2.65449e+01 4.73333e-01 2292 2003 3 2.67102e+01 4.85220e-01 2939 2003 4 2.72912e+01 6.78242e-01 1911 2003 5 2.73484e+01 7.20444e-01 1910 2003 6 2.75659e+01 8.34878e-01 618 2003 7 2.73889e+01 6.51664e-01 1429 2003 8 2.81990e+01 8.40376e-01 1556 2003 9 2.87779e+01 1.12039e+00 1910 2003 10 2.93924e+01 6.80769e-01 2595 2003 11 2.82360e+01 1.03964e+00 1665 2003 12 2.74342e+01 6.95446e-01 1989 2004 1 2.66331e+01 5.71475e-01 2756 2004 2 2.65491e+01 5.11336e-01 2647 2004 3 2.62869e+01 4.81983e-01 2621 2004 4 2.73258e+01 5.69431e-01 2511 2004 5 2.68933e+01 8.06022e-01 1434 2004 6 2.76660e+01 7.79715e-01 1115 2004 7 2.78045e+01 7.27341e-01 1299 2004 8 2.83508e+01 7.22332e-01 1496 2004 9 2.88109e+01 6.83267e-01 1429 2004 10 2.88769e+01 8.45512e-01 2141 2004 11 2.77383e+01 6.07990e-01 1955 2004 12 2.68922e+01 6.04564e-01 2510 2005 1 2.59324e+01 7.11208e-01 1720 2005 2 2.55408e+01 5.31952e-01 2349 2005 3 2.66962e+01 6.24251e-01 2950 2005 4 2.74757e+01 8.11266e-01 2327 2005 5 2.81861e+01 7.21812e-01 1589 2005 6 2.87465e+01 7.40598e-01 1157 2005 7 2.86270e+01 6.87980e-01 1288 2005 8 2.89924e+01 7.90412e-01 1503 2005 9 2.96569e+01 1.07285e+00 1790 2005 10 2.88509e+01 7.62704e-01 1198 2005 11 2.83552e+01 7.73945e-01 2462 2005 12 2.76382e+01 5.51190e-01 2550 2006 1 2.66637e+01 5.36917e-01 2684 2006 2 2.63664e+01 3.89704e-01 2646 2006 3 2.64473e+01 6.04424e-01 2487 2006 4 2.72598e+01 7.40950e-01 2256 2006 5 2.78081e+01 8.19183e-01 1963 2006 6 2.80699e+01 8.32891e-01 1341 2006 7 2.84297e+01 5.81626e-01 1392 2006 8 2.81871e+01 7.87229e-01 1700 2006 9 2.91875e+01 7.14356e-01 2025 2006 10 2.93258e+01 7.74722e-01 1976 2006 11 2.89474e+01 6.41228e-01 2907 2006 12 2.77979e+01 5.97702e-01 3058 2007 1 2.68798e+01 4.45942e-01 2932 2007 2 2.66494e+01 4.15371e-01 2765 2007 3 2.65995e+01 7.19617e-01 1908 2007 4 2.71407e+01 5.41335e-01 2410 2007 5 2.82402e+01 6.23164e-01 1504 2007 6 2.81778e+01 8.22443e-01 1460 2007 7 2.78759e+01 5.17636e-01 1287 2007 8 2.82956e+01 7.74338e-01 1154 2007 9 2.87611e+01 9.57735e-01 2210 2007 10 2.91290e+01 9.77587e-01 1317 2007 11 2.80714e+01 6.79945e-01 2053 2007 12 2.71862e+01 4.98093e-01 2629 2008 1 2.67030e+01 5.16459e-01 2871 2008 2 2.61774e+01 4.26221e-01 2402 2008 3 2.61722e+01 8.18477e-01 2349 2008 4 2.64508e+01 6.70776e-01 2109 2008 5 2.74300e+01 7.29905e-01 2080 2008 6 2.78226e+01 7.38702e-01 1333 2008 7 2.78481e+01 6.60958e-01 2131 2008 8 2.87654e+01 5.89317e-01 2056 2008 9 2.87098e+01 7.82892e-01 1428 2008 10 2.87810e+01 5.89178e-01 2689 2008 11 2.85915e+01 8.21189e-01 2108 2008 12 2.68442e+01 6.38007e-01 2756 2009 1 2.61445e+01 5.11297e-01 2945 2009 2 2.61583e+01 5.47189e-01 2071 2009 3 2.57536e+01 4.61845e-01 2276 2009 4 2.63925e+01 7.13959e-01 1913 2009 5 2.66671e+01 1.18336e+00 1285 2009 6 2.78840e+01 6.86198e-01 1245 2009 7 2.78610e+01 7.13265e-01 1161 2009 8 2.81567e+01 8.78463e-01 1826 2009 9 2.91570e+01 7.61961e-01 2164 2009 10 2.91582e+01 4.92893e-01 2263 2009 11 2.86437e+01 5.39623e-01 3026 2009 12 2.79120e+01 5.57338e-01 2602 2010 1 2.70297e+01 7.03610e-01 1990 2010 2 2.70236e+01 6.75952e-01 2356 2010 3 2.76102e+01 6.43052e-01 2614 2010 4 2.73978e+01 7.50249e-01 2057 2010 5 2.84888e+01 8.16454e-01 1381 2010 6 2.85172e+01 6.86868e-01 1519 2010 7 2.83896e+01 6.66647e-01 1139 2010 8 2.90925e+01 8.41793e-01 1966 2010 9 2.90756e+01 9.20650e-01 1139 2010 10 2.90204e+01 9.17398e-01 1829 2010 11 2.75342e+01 7.16170e-01 1987 2010 12 2.70855e+01 1.02984e+00 1978 2011 1 2.63144e+01 5.11423e-01 2568 2011 2 2.61971e+01 5.57050e-01 2463 2011 3 2.59804e+01 5.77368e-01 2710 2011 4 2.66186e+01 8.41825e-01 2296 2011 5 2.71397e+01 1.23630e+00 1384 2011 6 2.86209e+01 5.71667e-01 1046 2011 7 2.84834e+01 6.05603e-01 1327 2011 8 2.84074e+01 7.86889e-01 1642 2011 9 2.91534e+01 5.99676e-01 1543 2011 10 2.91586e+01 6.37621e-01 2099 2011 11 2.81252e+01 5.55739e-01 1920 2011 12 2.76342e+01 6.28770e-01 2889 2012 1 2.68276e+01 5.41481e-01 3065 2012 2 2.61706e+01 4.66722e-01 2442 2012 3 2.61863e+01 6.07056e-01 2025 2012 4 2.68193e+01 8.67215e-01 2018 2012 5 2.73087e+01 9.54898e-01 1815 2012 6 2.80559e+01 6.49624e-01 1931 2012 7 2.79515e+01 7.46274e-01 1374 2012 8 2.83126e+01 6.03150e-01 1360 2012 9 2.89428e+01 7.34875e-01 2471 2012 10 2.90244e+01 9.66108e-01 1440 2012 11 2.89258e+01 5.17021e-01 2780 2012 12 2.78799e+01 6.29853e-01 2652 2013 1 2.67134e+01 4.61386e-01 2389 2013 2 2.63726e+01 5.26449e-01 2825 2013 3 2.64125e+01 7.17369e-01 2322 2013 4 2.70507e+01 5.93984e-01 2361 2013 5 2.79593e+01 1.03548e+00 1406 2013 6 2.73255e+01 1.06491e+00 1004 2013 7 2.80431e+01 7.96327e-01 1789 2013 8 2.87740e+01 7.90981e-01 1650 2013 9 2.92800e+01 8.51307e-01 1874 2013 10 2.94175e+01 7.61371e-01 2179 2013 11 2.83600e+01 6.26088e-01 2059 2013 12 2.71759e+01 5.76530e-01 2796 2014 1 2.67021e+01 4.17378e-01 2607 2014 2 2.65428e+01 4.35299e-01 2872 2014 3 2.66914e+01 5.62572e-01 3318 2014 4 2.69624e+01 5.80851e-01 2469 2014 5 2.76710e+01 6.50612e-01 1603 2014 6 2.75740e+01 8.69717e-01 1117 2014 7 2.77880e+01 8.25574e-01 1598 2014 8 2.81465e+01 7.07479e-01 1310 2014 9 2.84842e+01 1.21676e+00 1249 2014 10 2.92740e+01 7.38880e-01 2763 2014 11 2.87040e+01 5.35890e-01 2225 2014 12 2.76718e+01 6.63100e-01 2733 2015 1 2.69650e+01 4.20528e-01 2800 2015 2 2.69136e+01 6.59764e-01 1599 2015 3 2.68138e+01 5.52539e-01 2851 2015 4 2.69760e+01 5.32532e-01 2748 2015 5 2.72137e+01 5.01850e-01 1621 2015 6 2.73276e+01 1.06866e+00 1490 2015 7 2.76035e+01 7.20543e-01 1822 2015 8 2.82433e+01 7.12260e-01 1699 2015 9 2.88358e+01 8.81371e-01 2161 2015 10 2.97600e+01 6.78240e-01 1894 2015 11 2.87097e+01 6.23469e-01 1486 2015 12 2.75831e+01 7.93203e-01 1962 2016 1 2.68381e+01 7.10911e-01 2077 2016 2 2.67982e+01 4.89666e-01 2208 2016 3 2.69420e+01 5.34652e-01 2622 2016 4 2.74520e+01 6.80350e-01 1965 2016 5 2.80212e+01 5.86299e-01 1628 2016 6 2.79400e+01 1.00045e+00 1316 2016 7 2.84159e+01 6.18711e-01 1922 2016 8 2.87743e+01 5.24592e-01 1655 2016 9 2.96584e+01 6.74759e-01 2600 2016 10 2.88195e+01 1.13788e+00 1712 2016 11 2.87750e+01 6.62684e-01 1263 2016 12 2.79415e+01 4.98061e-01 3372 2017 1 2.66821e+01 6.43308e-01 3018 2017 2 2.67933e+01 4.27874e-01 2566 2017 3 2.65846e+01 5.69350e-01 2304 2017 4 2.73321e+01 5.98162e-01 2135 2017 5 2.78575e+01 5.84995e-01 1639 2017 6 2.79912e+01 9.20493e-01 1671 2017 7 2.86204e+01 5.39273e-01 1725 2017 8 2.88133e+01 6.74106e-01 2219 2017 9 2.89249e+01 1.10045e+00 844 2017 10 2.88141e+01 6.83004e-01 1790 2017 11 2.85196e+01 9.73317e-01 1717 2017 12 2.77153e+01 6.78239e-01 3027 2018 1 2.71481e+01 7.79870e-01 2145 2018 2 2.61176e+01 5.46645e-01 2117 2018 3 2.65963e+01 6.20087e-01 2852 2018 4 2.71917e+01 6.91688e-01 2435 2018 5 2.73611e+01 6.44800e-01 1890 2018 6 2.77220e+01 8.66603e-01 1241 2018 7 2.76636e+01 7.95713e-01 1009 2018 8 2.82769e+01 8.50177e-01 1759 2018 9 2.87377e+01 9.94317e-01 1989 2018 10 2.88090e+01 8.63769e-01 1900 2018 11 2.85013e+01 5.32488e-01 2874 2018 12 2.74131e+01 6.72325e-01 3143 2019 1 2.67146e+01 6.16278e-01 2524 2019 2 2.65173e+01 5.70178e-01 2405 2019 3 2.65121e+01 5.45034e-01 2088 2019 4 2.71691e+01 6.83305e-01 2753 2019 5 2.75999e+01 5.66849e-01 1357 2019 6 2.79972e+01 8.18393e-01 1796 2019 7 2.81481e+01 7.37524e-01 1814 2019 8 2.87306e+01 7.76173e-01 2141 2019 9 2.92078e+01 9.16529e-01 1594 2019 10 2.95554e+01 6.31893e-01 2549 2019 11 2.88984e+01 5.64293e-01 3044 2019 12 2.84398e+01 7.25039e-01 2917 2020 1 2.72290e+01 4.84912e-01 2286 2020 2 2.69924e+01 4.10652e-01 2873 2020 3 2.67983e+01 6.91088e-01 2238 2020 4 2.76746e+01 6.53066e-01 2843 2020 5 2.80779e+01 8.54890e-01 2140 2020 6 2.86254e+01 8.40257e-01 2191 2020 7 2.89233e+01 6.29943e-01 1406 2020 8 2.89684e+01 6.45190e-01 2003 2020 9 2.95832e+01 7.94810e-01 2241 2020 10 2.93163e+01 7.06947e-01 1999 2020 11 2.82922e+01 5.73359e-01 1120 2020 12 2.77112e+01 4.79920e-01 3240 2021 1 2.69941e+01 5.37794e-01 2861 2021 2 2.68207e+01 3.94205e-01 3020 2021 3 2.64660e+01 5.48471e-01 2739 2021 4 2.69494e+01 6.84825e-01 2354 2021 5 2.74055e+01 7.33990e-01 2172 2021 6 2.79026e+01 6.90719e-01 1622 2021 7 2.80068e+01 5.87826e-01 1859 2021 8 2.85909e+01 6.13733e-01 1754 2021 9 2.93163e+01 6.26521e-01 2505 2021 10 2.94083e+01 7.35508e-01 2712 2021 11 2.87021e+01 6.11427e-01 2786 2021 12 2.75893e+01 5.93026e-01 2901 2022 1 2.71104e+01 3.95026e-01 3642 2022 2 2.68303e+01 4.49495e-01 2409 2022 3 2.67494e+01 5.56009e-01 2345 2022 4 2.70626e+01 6.97103e-01 910 2022 5 2.75547e+01 9.36956e-01 1797 2022 6 2.80215e+01 8.23997e-01 1501 2022 7 2.80128e+01 5.69228e-01 1036 2022 8 2.85735e+01 6.79324e-01 1737 2022 9 2.92404e+01 8.62203e-01 1726 2022 10 2.92350e+01 7.12450e-01 1771 2022 11 2.79944e+01 5.08038e-01 2512 2022 12 2.71916e+01 4.28645e-01 3238 2023 1 2.68068e+01 6.32583e-01 3110 2023 2 2.61425e+01 4.95545e-01 2618 2023 3 2.64036e+01 5.86860e-01 2749 2023 4 2.70711e+01 7.55327e-01 2528 2023 5 2.85650e+01 5.44985e-01 2589 2023 6 2.88179e+01 5.57095e-01 2129 2023 7 2.89720e+01 6.73608e-01 1359 2023 8 2.95771e+01 7.50385e-01 1371 2023 9 2.99350e+01 9.12597e-01 2160 2023 10 3.00700e+01 8.11299e-01 2365 2023 11 2.91776e+01 8.09664e-01 1936 2023 12 2.81827e+01 5.95195e-01 3033 2024 1 2.75415e+01 4.03152e-01 3217 2024 2 2.70193e+01 5.17480e-01 2282 2024 3 2.74635e+01 5.05094e-01 2890 2024 4 2.75801e+01 5.63923e-01 320