YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 1.94712e+01 3.79426e-01 128 2000 3 2.26107e+01 9.57047e-01 960 2000 4 2.38016e+01 1.00027e+00 698 2000 5 2.66161e+01 1.53920e+00 755 2000 6 2.84555e+01 1.33784e+00 536 2000 7 2.99363e+01 1.18739e+00 402 2000 8 2.88232e+01 1.71511e+00 76 2000 9 2.93606e+01 7.06690e-01 553 2000 10 2.53073e+01 2.07520e+00 786 2000 11 2.31833e+01 1.16725e+00 740 2000 12 1.94314e+01 1.78398e+00 435 2001 1 1.51722e+01 3.66017e-01 53 2001 2 1.97023e+01 1.53114e+00 452 2001 3 2.08202e+01 9.00630e-01 541 2001 4 2.33831e+01 1.31937e+00 827 2001 5 2.39353e+01 1.96738e+00 475 2001 6 2.95458e+01 1.05535e+00 174 2001 7 2.89563e+01 4.97745e-01 438 2001 8 3.00868e+01 6.95937e-01 384 2001 9 2.89741e+01 1.10386e+00 344 2001 10 2.64447e+01 1.24666e+00 537 2001 11 2.23560e+01 9.42946e-01 679 2001 12 2.28680e+01 8.68434e-01 916 2002 1 1.96496e+01 1.59204e+00 456 2002 2 1.99965e+01 1.37111e+00 360 2002 3 2.02630e+01 1.51057e+00 317 2002 4 2.54794e+01 1.03492e+00 778 2002 5 2.73568e+01 7.10251e-01 849 2002 6 2.74761e+01 1.36274e+00 206 2002 7 2.89590e+01 1.58943e+00 1922 2002 8 2.98258e+01 1.35292e+00 1989 2002 9 2.96506e+01 1.31556e+00 1845 2002 10 2.84866e+01 1.07434e+00 3908 2002 11 2.50324e+01 2.49245e+00 2632 2002 12 1.94636e+01 9.69931e-01 1461 2003 1 1.66303e+01 1.14580e+00 1777 2003 2 1.89334e+01 1.57003e+00 1703 2003 3 2.39369e+01 1.21680e+00 1707 2003 4 2.35152e+01 1.36279e+00 2774 2003 5 2.77668e+01 1.49292e+00 3307 2003 6 2.93542e+01 9.37536e-01 1718 2003 7 2.96816e+01 1.59221e+00 1740 2003 8 2.98469e+01 1.16304e+00 1696 2003 9 2.93119e+01 1.05047e+00 1950 2003 10 2.74544e+01 1.32738e+00 3198 2003 11 2.41490e+01 1.24118e+00 3361 2003 12 1.91116e+01 1.77466e+00 1926 2004 1 1.81009e+01 8.10239e-01 2583 2004 2 1.85481e+01 1.29464e+00 1532 2004 3 2.08158e+01 1.16015e+00 2624 2004 4 2.21428e+01 1.11123e+00 2766 2004 5 2.63241e+01 1.26198e+00 3543 2004 6 2.96738e+01 8.30618e-01 3151 2004 7 3.03361e+01 1.04455e+00 2808 2004 8 2.97762e+01 1.62842e+00 2411 2004 9 2.88924e+01 1.58084e+00 2189 2004 10 2.72552e+01 1.20374e+00 3321 2004 11 2.42094e+01 1.20009e+00 3224 2004 12 2.05996e+01 2.28544e+00 2116 2005 1 1.83787e+01 1.11756e+00 2176 2005 2 1.80904e+01 1.01891e+00 2135 2005 3 2.03249e+01 1.77918e+00 1831 2005 4 2.28777e+01 8.52720e-01 2986 2005 5 2.57187e+01 1.50434e+00 2549 2005 6 2.82443e+01 1.02946e+00 1264 2005 7 2.97500e+01 1.34532e+00 2683 2005 8 3.09926e+01 1.36448e+00 2133 2005 9 2.89971e+01 1.25850e+00 2422 2005 10 2.67378e+01 1.81571e+00 2177 2005 11 2.31383e+01 1.12587e+00 2724 2005 12 1.99621e+01 1.72361e+00 2331 2006 1 1.88145e+01 1.11497e+00 2141 2006 2 1.88174e+01 1.21259e+00 2311 2006 3 2.10309e+01 1.21953e+00 3002 2006 4 2.39923e+01 1.83660e+00 3272 2006 5 2.66415e+01 1.33482e+00 2966 2006 6 2.89393e+01 1.19379e+00 3168 2006 7 2.93261e+01 1.58118e+00 2038 2006 8 3.03864e+01 1.13167e+00 2566 2006 9 2.98330e+01 1.45830e+00 2855 2006 10 2.74776e+01 1.69509e+00 3509 2006 11 2.19750e+01 2.14488e+00 1568 2006 12 2.02899e+01 9.07705e-01 1401 2007 1 2.04665e+01 1.07169e+00 1912 2007 2 1.79567e+01 1.04130e+00 1387 2007 3 2.08599e+01 1.30155e+00 2576 2007 4 2.30230e+01 1.34216e+00 3244 2007 5 2.53764e+01 9.51644e-01 3778 2007 6 2.77379e+01 1.75439e+00 2585 2007 7 3.08607e+01 1.32667e+00 2080 2007 8 3.07813e+01 9.33796e-01 3025 2007 9 3.01110e+01 1.63513e+00 2318 2007 10 2.78333e+01 1.40853e+00 2252 2007 11 2.30272e+01 1.55535e+00 3366 2007 12 2.22418e+01 1.03427e+00 3122 2008 1 1.89419e+01 1.37506e+00 2110 2008 2 2.05681e+01 1.27746e+00 2004 2008 3 2.15684e+01 1.15119e+00 2485 2008 4 2.39751e+01 1.02335e+00 3627 2008 5 2.67279e+01 1.35399e+00 3884 2008 6 2.94802e+01 9.45867e-01 2540 2008 7 2.97317e+01 1.39776e+00 2007 2008 8 2.99912e+01 1.33914e+00 2036 2008 9 2.90118e+01 1.31561e+00 2161 2008 10 2.66193e+01 1.62389e+00 2990 2008 11 2.08018e+01 1.52454e+00 3168 2008 12 1.89739e+01 1.20664e+00 2617 2009 1 1.88974e+01 1.79570e+00 2659 2009 2 1.73353e+01 1.42153e+00 1991 2009 3 2.00189e+01 1.75235e+00 3019 2009 4 2.37520e+01 1.21413e+00 3216 2009 5 2.66866e+01 1.41471e+00 2687 2009 6 2.89003e+01 1.37183e+00 2600 2009 7 3.01169e+01 1.31454e+00 2668 2009 8 3.04257e+01 1.39794e+00 2624 2009 9 3.00469e+01 1.20393e+00 1772 2009 10 2.87847e+01 2.04729e+00 3634 2009 11 2.34987e+01 1.90732e+00 2036 2009 12 2.08784e+01 1.67115e+00 1577 2010 1 1.53507e+01 1.91836e+00 1087 2010 2 1.61942e+01 1.37464e+00 1320 2010 3 1.68525e+01 1.53401e+00 2008 2010 4 2.12978e+01 1.67895e+00 2053 2010 5 2.68601e+01 1.67852e+00 3760 2010 6 3.03070e+01 1.06181e+00 3326 2010 7 2.92877e+01 1.27766e+00 2249 2010 8 3.01370e+01 1.31618e+00 2000 2010 9 2.95094e+01 1.33721e+00 2975 2010 10 2.63728e+01 1.17857e+00 3765 2010 11 2.26419e+01 1.67119e+00 3513 2010 12 1.77988e+01 2.62553e+00 2384 2011 1 1.55104e+01 9.86448e-01 1549 2011 2 1.82619e+01 1.48167e+00 1766 2011 3 2.09732e+01 1.25648e+00 2795 2011 4 2.57535e+01 1.08081e+00 3524 2011 5 2.76943e+01 9.39959e-01 3253 2011 6 2.94278e+01 1.20304e+00 2724 2011 7 3.00787e+01 1.44238e+00 1968 2011 8 3.06240e+01 1.16901e+00 2388 2011 9 2.96162e+01 1.30006e+00 2439 2011 10 2.65207e+01 2.14612e+00 1622 2011 11 2.24871e+01 9.63363e-01 2889 2011 12 2.09354e+01 8.48330e-01 2979 2012 1 1.91573e+01 1.24456e+00 2621 2012 2 2.05752e+01 1.20500e+00 1906 2012 3 2.32629e+01 1.04192e+00 4056 2012 4 2.48662e+01 8.84737e-01 2888 2012 5 2.72088e+01 1.43684e+00 2856 2012 6 2.87035e+01 1.28326e+00 1860 2012 7 2.93490e+01 1.23083e+00 2551 2012 8 3.06151e+01 1.21012e+00 1909 2012 9 2.92378e+01 9.93980e-01 2323 2012 10 2.73221e+01 1.76621e+00 2625 2012 11 2.13542e+01 1.19556e+00 2473 2012 12 2.04382e+01 1.18267e+00 2442 2013 1 2.03225e+01 1.37584e+00 2185 2013 2 2.00396e+01 9.64326e-01 2386 2013 3 1.94926e+01 9.58142e-01 2548 2013 4 2.38029e+01 2.52304e+00 2858 2013 5 2.61558e+01 1.25500e+00 3163 2013 6 2.93513e+01 1.21236e+00 2122 2013 7 2.93683e+01 1.51196e+00 1536 2013 8 3.00669e+01 1.19911e+00 2369 2013 9 2.96953e+01 1.29809e+00 2349 2013 10 2.75178e+01 1.48238e+00 2818 2013 11 2.38036e+01 1.16064e+00 2222 2013 12 2.17379e+01 1.20330e+00 2107 2014 1 1.84828e+01 1.62321e+00 1733 2014 2 2.00251e+01 1.16407e+00 2209 2014 3 2.21201e+01 1.04345e+00 2373 2014 4 2.37785e+01 1.42072e+00 2272 2014 5 2.62969e+01 1.00707e+00 2637 2014 6 2.91661e+01 1.26329e+00 2278 2014 7 3.03605e+01 1.38346e+00 2434 2014 8 3.10743e+01 1.32614e+00 2443 2014 9 3.00888e+01 1.61774e+00 2038 2014 10 2.74634e+01 1.44870e+00 3089 2014 11 2.19560e+01 1.87387e+00 2308 2014 12 1.96590e+01 1.09139e+00 2416 2015 1 1.97438e+01 1.06554e+00 2063 2015 2 1.80264e+01 9.35400e-01 2076 2015 3 2.28448e+01 1.47929e+00 3377 2015 4 2.57247e+01 1.96235e+00 2697 2015 5 2.78844e+01 1.29897e+00 3713 2015 6 2.99255e+01 1.36159e+00 2432 2015 7 3.07776e+01 8.73001e-01 1996 2015 8 3.06061e+01 1.60437e+00 2170 2015 9 2.98188e+01 1.48398e+00 1292 2015 10 2.72862e+01 1.77692e+00 2316 2015 11 2.59287e+01 1.62854e+00 3202 2015 12 2.27502e+01 1.07645e+00 2052 2016 1 2.14252e+01 2.23251e+00 1029 2016 2 1.85743e+01 1.55379e+00 2052 2016 3 2.12325e+01 1.82603e+00 1573 2016 4 2.43861e+01 1.02728e+00 3087 2016 5 2.72127e+01 1.55425e+00 3124 2016 6 2.92412e+01 1.67378e+00 2453 2016 7 3.09804e+01 1.46878e+00 2487 2016 8 3.06526e+01 1.09499e+00 2344 2016 9 2.98828e+01 1.36677e+00 2552 2016 10 2.69760e+01 2.18104e+00 2652 2016 11 2.30432e+01 1.60797e+00 3113 2016 12 2.22535e+01 1.02489e+00 2840 2017 1 2.03504e+01 1.04810e+00 2515 2017 2 2.08216e+01 9.97104e-01 2595 2017 3 2.18038e+01 1.21895e+00 3102 2017 4 2.40664e+01 1.05576e+00 2410 2017 5 2.68168e+01 1.28585e+00 3221 2017 6 2.93270e+01 1.31938e+00 1507 2017 7 3.05198e+01 1.34318e+00 2041 2017 8 3.07575e+01 1.59596e+00 2496 2017 9 2.95860e+01 1.05121e+00 2467 2017 10 2.73281e+01 1.98450e+00 2158 2017 11 2.36033e+01 7.52627e-01 3604 2017 12 2.24917e+01 1.25725e+00 3242 2018 1 1.78967e+01 1.48999e+00 1428 2018 2 2.11559e+01 2.30023e+00 3150 2018 3 2.16500e+01 1.52219e+00 3361 2018 4 2.46458e+01 1.20128e+00 2876 2018 5 2.55036e+01 1.19774e+00 1475 2018 6 2.87257e+01 1.96415e+00 2421 2018 7 3.07287e+01 1.00060e+00 2652 2018 8 3.07721e+01 1.16938e+00 2228 2018 9 3.02582e+01 1.60773e+00 2837 2018 10 2.81242e+01 1.31575e+00 3360 2018 11 2.53826e+01 1.54788e+00 2389 2018 12 2.07964e+01 1.55231e+00 1982 2019 1 1.94356e+01 1.28764e+00 2340 2019 2 2.08237e+01 1.84557e+00 2411 2019 3 2.29459e+01 1.10957e+00 3289 2019 4 2.48267e+01 1.19967e+00 2748 2019 5 2.81822e+01 1.18644e+00 3225 2019 6 3.04181e+01 1.03025e+00 2268 2019 7 3.03257e+01 1.29164e+00 2308 2019 8 3.01602e+01 9.73930e-01 1251 2019 9 2.93567e+01 1.21657e+00 3031 2019 10 2.79282e+01 7.53289e-01 2542 2019 11 2.49100e+01 2.63414e+00 2663 2019 12 2.17720e+01 1.00342e+00 2287 2020 1 2.04522e+01 1.37762e+00 3208 2020 2 2.06378e+01 1.61040e+00 2384 2020 3 2.30188e+01 2.14281e+00 3776 2020 4 2.65513e+01 1.11653e+00 2294 2020 5 2.66597e+01 1.06418e+00 2227 2020 6 3.01991e+01 1.34266e+00 1764 2020 7 3.08701e+01 9.31934e-01 2159 2020 8 3.06505e+01 1.29924e+00 1603 2020 9 2.97602e+01 1.44393e+00 2162 2020 10 2.78031e+01 1.07227e+00 1941 2020 11 2.45117e+01 1.33971e+00 2883 2020 12 2.02390e+01 1.56466e+00 2588 2021 1 1.84289e+01 1.16153e+00 2165 2021 2 2.07610e+01 1.95222e+00 2904 2021 3 2.22415e+01 1.19592e+00 3175 2021 4 2.47950e+01 1.27678e+00 3426 2021 5 2.74998e+01 1.01966e+00 3489 2021 6 2.81041e+01 1.02678e+00 1211 2021 7 2.99245e+01 1.31963e+00 2575 2021 8 3.08524e+01 9.93300e-01 1939 2021 9 3.01969e+01 9.15446e-01 2187 2021 10 2.90092e+01 1.06573e+00 2686 2021 11 2.28201e+01 1.50976e+00 2819 2021 12 2.19205e+01 1.03770e+00 3539 2022 1 2.07295e+01 1.73088e+00 2552 2022 2 1.93452e+01 2.00771e+00 2504 2022 3 2.24951e+01 1.16738e+00 3963 2022 4 2.50107e+01 8.29220e-01 1952 2022 5 2.77106e+01 1.17134e+00 3173 2022 6 2.96133e+01 1.46375e+00 2838 2022 7 3.10169e+01 9.16831e-01 2443 2022 8 3.12533e+01 1.11121e+00 2204 2022 9 3.10558e+01 1.14763e+00 2037 2022 10 2.64600e+01 1.31221e+00 2692 2022 11 2.53571e+01 1.23265e+00 2487 2022 12 2.27254e+01 1.90999e+00 2660 2023 1 1.95859e+01 1.31723e+00 3105 2023 2 2.18068e+01 1.50300e+00 3380 2023 3 2.40330e+01 1.18985e+00 3677 2023 4 2.62613e+01 8.24070e-01 2887 2023 5 2.82273e+01 1.34472e+00 3776 2023 6 2.94973e+01 1.12559e+00 2961 2023 7 3.18449e+01 9.19264e-01 2064 2023 8 3.15660e+01 1.10839e+00 2556 2023 9 3.10789e+01 1.04172e+00 2626 2023 10 2.71933e+01 1.84507e+00 3049 2023 11 2.41339e+01 9.82176e-01 2312 2023 12 2.04392e+01 1.94586e+00 1081 2024 1 1.87472e+01 8.22710e-01 1059 2024 2 1.90619e+01 1.06628e+00 2390 2024 3 2.32509e+01 1.27556e+00 1831 2024 4 2.34788e+01 3.39779e-01 207