YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 2.04463e+01 5.79646e-01 192 2000 3 2.30497e+01 6.91592e-01 858 2000 4 2.40631e+01 1.11925e+00 661 2000 5 2.72745e+01 1.49950e+00 640 2000 6 2.82714e+01 1.74378e+00 263 2000 7 3.00067e+01 6.93186e-01 407 2000 8 2.88801e+01 1.58880e-01 81 2000 9 2.92241e+01 9.07717e-01 548 2000 10 2.43577e+01 1.75918e+00 768 2000 11 2.28723e+01 1.57483e+00 636 2000 12 1.88642e+01 1.89281e+00 597 2001 1 1.45015e+01 5.00325e-01 192 2001 2 2.06674e+01 2.59268e+00 314 2001 3 2.07089e+01 1.01286e+00 652 2001 4 2.42273e+01 1.83142e+00 621 2001 5 2.46585e+01 1.86552e+00 705 2001 6 3.06870e+01 5.31302e-01 134 2001 7 2.92296e+01 1.37689e+00 374 2001 8 3.07770e+01 1.67084e+00 503 2001 9 2.83441e+01 1.82418e+00 478 2001 10 2.54844e+01 2.10033e+00 386 2001 11 2.21086e+01 7.99655e-01 896 2001 12 2.26621e+01 1.47054e+00 832 2002 1 1.91957e+01 2.76427e+00 682 2002 2 1.94541e+01 1.82951e+00 512 2002 3 2.09799e+01 2.77990e+00 368 2002 4 2.65239e+01 1.04122e+00 606 2002 5 2.75391e+01 1.37582e+00 691 2002 6 2.73343e+01 1.10397e+00 256 2002 7 2.91952e+01 1.78824e+00 1548 2002 8 2.97091e+01 1.18124e+00 1752 2002 9 2.93432e+01 1.62786e+00 1524 2002 10 2.79528e+01 1.46383e+00 3690 2002 11 2.37366e+01 2.67994e+00 2422 2002 12 1.82720e+01 1.28131e+00 1232 2003 1 1.56554e+01 1.60726e+00 2058 2003 2 1.91949e+01 1.86830e+00 1765 2003 3 2.41919e+01 1.33268e+00 1702 2003 4 2.36549e+01 1.77478e+00 2463 2003 5 2.82163e+01 1.59254e+00 2975 2003 6 2.85160e+01 1.57699e+00 1598 2003 7 2.96601e+01 2.11627e+00 1688 2003 8 2.86925e+01 1.68157e+00 1727 2003 9 2.90775e+01 1.23933e+00 1681 2003 10 2.68575e+01 1.40236e+00 2883 2003 11 2.35181e+01 1.56394e+00 2828 2003 12 1.77183e+01 1.61778e+00 1934 2004 1 1.77806e+01 1.32931e+00 2633 2004 2 1.85845e+01 1.43158e+00 1627 2004 3 2.12017e+01 1.22066e+00 2314 2004 4 2.26832e+01 1.67377e+00 2742 2004 5 2.68233e+01 1.65982e+00 3084 2004 6 3.01537e+01 1.04050e+00 2873 2004 7 2.99246e+01 1.50932e+00 2476 2004 8 2.98660e+01 2.27665e+00 2001 2004 9 2.79384e+01 1.85631e+00 1814 2004 10 2.63831e+01 1.74290e+00 3015 2004 11 2.33329e+01 1.52974e+00 3179 2004 12 1.93910e+01 2.75311e+00 1772 2005 1 1.78399e+01 1.57204e+00 2006 2005 2 1.78744e+01 1.38953e+00 2318 2005 3 2.05520e+01 1.88476e+00 1608 2005 4 2.30689e+01 1.26798e+00 2914 2005 5 2.62445e+01 1.94379e+00 2585 2005 6 2.91208e+01 1.97205e+00 1150 2005 7 2.98463e+01 1.92557e+00 2753 2005 8 3.13101e+01 1.71363e+00 2265 2005 9 2.88120e+01 1.65084e+00 2457 2005 10 2.54025e+01 2.79904e+00 1823 2005 11 2.25634e+01 1.16177e+00 2272 2005 12 1.89749e+01 1.69743e+00 1715 2006 1 1.83748e+01 1.07818e+00 1878 2006 2 1.84942e+01 1.39185e+00 2250 2006 3 2.14596e+01 1.38630e+00 3129 2006 4 2.46715e+01 2.10757e+00 3142 2006 5 2.67630e+01 1.73626e+00 2935 2006 6 2.89881e+01 9.92559e-01 2650 2006 7 2.91314e+01 1.31935e+00 2193 2006 8 3.02903e+01 9.70693e-01 2379 2006 9 2.97722e+01 1.53607e+00 2809 2006 10 2.67503e+01 1.93368e+00 3268 2006 11 2.16306e+01 2.08688e+00 1329 2006 12 1.96374e+01 1.11743e+00 1589 2007 1 2.01930e+01 1.51005e+00 1918 2007 2 1.75193e+01 1.37770e+00 1281 2007 3 2.08641e+01 1.29122e+00 2202 2007 4 2.31286e+01 1.69805e+00 2483 2007 5 2.52512e+01 1.11456e+00 3563 2007 6 2.79552e+01 1.66867e+00 2650 2007 7 3.07133e+01 1.39891e+00 1890 2007 8 3.07504e+01 1.06771e+00 2430 2007 9 2.92002e+01 1.48344e+00 2415 2007 10 2.74349e+01 1.31519e+00 2015 2007 11 2.20816e+01 1.71361e+00 3248 2007 12 2.15840e+01 1.38806e+00 2449 2008 1 1.83024e+01 1.45748e+00 1982 2008 2 2.09553e+01 1.23093e+00 2015 2008 3 2.12842e+01 1.16591e+00 1848 2008 4 2.39358e+01 1.46599e+00 2882 2008 5 2.69192e+01 1.47777e+00 3536 2008 6 2.96234e+01 9.93344e-01 1878 2008 7 2.95953e+01 1.44510e+00 1848 2008 8 3.00969e+01 1.58086e+00 1694 2008 9 2.85029e+01 1.41203e+00 1676 2008 10 2.53791e+01 2.28579e+00 2758 2008 11 2.00309e+01 1.94112e+00 2714 2008 12 1.89524e+01 1.30582e+00 2577 2009 1 1.82414e+01 2.25833e+00 2062 2009 2 1.75351e+01 1.78156e+00 2007 2009 3 2.07464e+01 2.05229e+00 2470 2009 4 2.37104e+01 1.17521e+00 2759 2009 5 2.73899e+01 1.57974e+00 1970 2009 6 2.93191e+01 1.52648e+00 2738 2009 7 3.01750e+01 1.48979e+00 2473 2009 8 3.00646e+01 1.55628e+00 2312 2009 9 2.97722e+01 1.45000e+00 1767 2009 10 2.78700e+01 2.58329e+00 3524 2009 11 2.33842e+01 2.18206e+00 1655 2009 12 1.92990e+01 1.73869e+00 1256 2010 1 1.50459e+01 3.23552e+00 1203 2010 2 1.56730e+01 1.57468e+00 1525 2010 3 1.76448e+01 2.02966e+00 2059 2010 4 2.24290e+01 1.77554e+00 2000 2010 5 2.77934e+01 1.60321e+00 3683 2010 6 3.06274e+01 9.29480e-01 2850 2010 7 2.95364e+01 1.43518e+00 2121 2010 8 3.03456e+01 1.38832e+00 2047 2010 9 2.92312e+01 1.45126e+00 2497 2010 10 2.58279e+01 1.16962e+00 3676 2010 11 2.20044e+01 1.65704e+00 3130 2010 12 1.67027e+01 2.93404e+00 2261 2011 1 1.56158e+01 1.33024e+00 1656 2011 2 1.89311e+01 1.98356e+00 2094 2011 3 2.16011e+01 1.51983e+00 3044 2011 4 2.60614e+01 1.33956e+00 3476 2011 5 2.76093e+01 1.18953e+00 3585 2011 6 2.94839e+01 1.36351e+00 2718 2011 7 3.01490e+01 1.09128e+00 1789 2011 8 3.01945e+01 1.00941e+00 1905 2011 9 2.93926e+01 1.22420e+00 2277 2011 10 2.54789e+01 2.41106e+00 1939 2011 11 2.18293e+01 1.10685e+00 2553 2011 12 2.04294e+01 9.49115e-01 2279 2012 1 1.83590e+01 1.55733e+00 2462 2012 2 1.99052e+01 2.15599e+00 1973 2012 3 2.34638e+01 1.25751e+00 3138 2012 4 2.47273e+01 1.23910e+00 2541 2012 5 2.76254e+01 1.32807e+00 2859 2012 6 2.85866e+01 1.30892e+00 1585 2012 7 2.96664e+01 1.28215e+00 2308 2012 8 3.04706e+01 1.68481e+00 1580 2012 9 2.91010e+01 1.21501e+00 2172 2012 10 2.62979e+01 2.11117e+00 2158 2012 11 2.04536e+01 1.53656e+00 2399 2012 12 2.00319e+01 1.80468e+00 1813 2013 1 2.02272e+01 1.35056e+00 1630 2013 2 1.95955e+01 1.72091e+00 2441 2013 3 1.95876e+01 1.44341e+00 2435 2013 4 2.43450e+01 2.48166e+00 2222 2013 5 2.63335e+01 1.53294e+00 3250 2013 6 2.89892e+01 2.12473e+00 1971 2013 7 2.91754e+01 1.73523e+00 1712 2013 8 3.01993e+01 1.45651e+00 2201 2013 9 2.96344e+01 1.76155e+00 2291 2013 10 2.72131e+01 1.87608e+00 2380 2013 11 2.30314e+01 1.49284e+00 2202 2013 12 2.14231e+01 1.36344e+00 2226 2014 1 1.73840e+01 1.54641e+00 1765 2014 2 2.00490e+01 1.12081e+00 1745 2014 3 2.17945e+01 9.42786e-01 2349 2014 4 2.39614e+01 1.88828e+00 1817 2014 5 2.65997e+01 1.25506e+00 2351 2014 6 2.94217e+01 1.07053e+00 2289 2014 7 3.01199e+01 1.61211e+00 2484 2014 8 3.11094e+01 1.36895e+00 2661 2014 9 2.95078e+01 1.50996e+00 1814 2014 10 2.70095e+01 1.81891e+00 2645 2014 11 2.13189e+01 1.85516e+00 1872 2014 12 1.92365e+01 1.40888e+00 2274 2015 1 1.92822e+01 1.24676e+00 1856 2015 2 1.76789e+01 1.01216e+00 2153 2015 3 2.35991e+01 1.62835e+00 3080 2015 4 2.61015e+01 1.92465e+00 2642 2015 5 2.73640e+01 1.36980e+00 2901 2015 6 2.99958e+01 1.51900e+00 1837 2015 7 3.00909e+01 1.16276e+00 2333 2015 8 3.02564e+01 1.77285e+00 2083 2015 9 2.93236e+01 1.75494e+00 960 2015 10 2.68971e+01 1.87896e+00 2143 2015 11 2.53299e+01 2.06702e+00 2756 2015 12 2.24244e+01 1.35999e+00 1602 2016 1 1.92656e+01 2.10816e+00 908 2016 2 1.83107e+01 1.76271e+00 2081 2016 3 2.16219e+01 1.89284e+00 1846 2016 4 2.47615e+01 1.16514e+00 2855 2016 5 2.72682e+01 1.61072e+00 2955 2016 6 2.97155e+01 1.67325e+00 2315 2016 7 3.08929e+01 1.32233e+00 1978 2016 8 3.05935e+01 1.40343e+00 2233 2016 9 2.98279e+01 1.82284e+00 2414 2016 10 2.66629e+01 2.26376e+00 2663 2016 11 2.27248e+01 1.63780e+00 2597 2016 12 2.17903e+01 1.21902e+00 2878 2017 1 2.01930e+01 1.34967e+00 2109 2017 2 2.10167e+01 1.20732e+00 2794 2017 3 2.17412e+01 1.65951e+00 3084 2017 4 2.45800e+01 1.37082e+00 2199 2017 5 2.72003e+01 1.51784e+00 2896 2017 6 2.84600e+01 1.73221e+00 1219 2017 7 3.05975e+01 1.40768e+00 1812 2017 8 3.10028e+01 1.46044e+00 2480 2017 9 2.97368e+01 1.99823e+00 2434 2017 10 2.64931e+01 2.67723e+00 1970 2017 11 2.28267e+01 9.92143e-01 3369 2017 12 2.11507e+01 1.81538e+00 2952 2018 1 1.66402e+01 1.27697e+00 1350 2018 2 2.21010e+01 2.42596e+00 2447 2018 3 2.13028e+01 1.59923e+00 3214 2018 4 2.49991e+01 9.85824e-01 2469 2018 5 2.52998e+01 1.22782e+00 1386 2018 6 2.94061e+01 1.91726e+00 2554 2018 7 3.05214e+01 1.42573e+00 2358 2018 8 3.02046e+01 1.19423e+00 1902 2018 9 2.99757e+01 1.67253e+00 2713 2018 10 2.77744e+01 1.54568e+00 2832 2018 11 2.45356e+01 1.67398e+00 2194 2018 12 1.96576e+01 1.57537e+00 1853 2019 1 1.90698e+01 2.13768e+00 2367 2019 2 2.09018e+01 2.12833e+00 2157 2019 3 2.25200e+01 1.20103e+00 2368 2019 4 2.47482e+01 1.56459e+00 2582 2019 5 2.83842e+01 1.11777e+00 2807 2019 6 3.06127e+01 1.13876e+00 2197 2019 7 3.02998e+01 1.60054e+00 2117 2019 8 3.02961e+01 1.25179e+00 1439 2019 9 2.89767e+01 1.54077e+00 2718 2019 10 2.77326e+01 7.07218e-01 2260 2019 11 2.34888e+01 2.68157e+00 2307 2019 12 2.05164e+01 1.17167e+00 2006 2020 1 2.00560e+01 1.55570e+00 3014 2020 2 2.04578e+01 1.75090e+00 2452 2020 3 2.32456e+01 2.77145e+00 3409 2020 4 2.62843e+01 9.12130e-01 2338 2020 5 2.63525e+01 1.21211e+00 2746 2020 6 3.03420e+01 1.24038e+00 1995 2020 7 3.08228e+01 1.21856e+00 1922 2020 8 3.11100e+01 1.36419e+00 1507 2020 9 2.99673e+01 1.54305e+00 2020 2020 10 2.75638e+01 1.28972e+00 1854 2020 11 2.36422e+01 1.55643e+00 2534 2020 12 1.89169e+01 1.45238e+00 2683 2021 1 1.86876e+01 1.39768e+00 2420 2021 2 2.09350e+01 2.13355e+00 2807 2021 3 2.22678e+01 1.67696e+00 2484 2021 4 2.49965e+01 1.66907e+00 3183 2021 5 2.75877e+01 1.48955e+00 3064 2021 6 2.83129e+01 1.24828e+00 789 2021 7 2.97659e+01 1.83835e+00 2302 2021 8 3.08236e+01 1.36476e+00 1562 2021 9 2.99464e+01 1.44253e+00 2261 2021 10 2.84755e+01 1.37915e+00 2652 2021 11 2.17828e+01 1.75898e+00 2638 2021 12 2.16277e+01 1.26958e+00 3531 2022 1 1.96715e+01 2.21963e+00 2942 2022 2 1.94747e+01 2.41387e+00 2208 2022 3 2.32163e+01 1.16237e+00 3609 2022 4 2.49489e+01 1.19911e+00 2088 2022 5 2.79162e+01 1.29710e+00 2644 2022 6 2.94550e+01 1.49904e+00 2576 2022 7 3.10368e+01 1.06617e+00 2757 2022 8 3.07567e+01 1.18712e+00 1958 2022 9 3.04823e+01 1.91547e+00 1857 2022 10 2.55700e+01 1.81896e+00 2723 2022 11 2.46180e+01 1.86684e+00 2219 2022 12 2.15282e+01 2.81185e+00 2647 2023 1 1.90269e+01 1.44379e+00 2923 2023 2 2.20363e+01 1.65164e+00 3256 2023 3 2.39799e+01 1.86345e+00 3759 2023 4 2.61873e+01 1.24218e+00 2223 2023 5 2.80447e+01 1.62071e+00 3891 2023 6 2.94703e+01 1.36987e+00 2360 2023 7 3.19102e+01 9.48611e-01 1890 2023 8 3.12352e+01 1.42477e+00 2420 2023 9 3.04126e+01 1.21846e+00 2318 2023 10 2.61421e+01 1.95344e+00 2581 2023 11 2.33754e+01 1.24374e+00 2001 2023 12 1.90155e+01 1.37035e+00 957 2024 1 1.85715e+01 1.33916e+00 1189 2024 2 1.89580e+01 1.12100e+00 2896 2024 3 2.38583e+01 1.03390e+00 1765 2024 4 2.17876e+01 8.96541e-01 44