YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 1.72443e+01 4.06478e-01 128 2000 3 2.03965e+01 1.29001e+00 588 2000 4 2.20204e+01 8.47873e-01 640 2000 5 2.56743e+01 2.10896e+00 775 2000 6 2.73261e+01 1.25160e+00 427 2000 7 2.86981e+01 7.94141e-01 436 2000 8 2.91478e+01 1.22125e+00 320 2000 9 2.68558e+01 1.47397e+00 308 2000 10 2.30722e+01 1.42295e+00 859 2000 11 2.09376e+01 2.77175e+00 558 2000 12 1.57738e+01 1.29839e+00 169 2001 1 1.20894e+01 1.88785e-01 128 2001 2 1.75803e+01 1.20854e+00 280 2001 3 1.65791e+01 1.42988e+00 481 2001 4 2.06405e+01 2.13639e+00 659 2001 5 2.52084e+01 1.17348e+00 652 2001 6 2.72470e+01 8.50049e-01 199 2001 7 2.87275e+01 8.28011e-01 220 2001 8 2.88312e+01 8.81222e-01 635 2001 9 2.70951e+01 1.80224e+00 457 2001 10 2.24763e+01 1.67071e+00 579 2001 11 1.98159e+01 5.33003e-01 704 2001 12 1.84509e+01 2.35627e+00 576 2002 1 nan nan 0 2002 2 1.48703e+01 1.76276e+00 443 2002 3 1.82367e+01 2.50336e+00 167 2002 4 2.47901e+01 1.74495e+00 545 2002 5 2.61745e+01 1.34514e+00 740 2002 6 2.81097e+01 7.17918e-01 429 2002 7 2.91114e+01 1.34472e+00 1526 2002 8 2.91326e+01 1.06458e+00 2117 2002 9 2.85306e+01 8.00210e-01 2050 2002 10 2.70742e+01 1.77552e+00 2763 2002 11 2.07945e+01 2.61791e+00 2131 2002 12 1.48493e+01 1.01463e+00 1072 2003 1 1.20734e+01 1.41896e+00 1720 2003 2 1.39924e+01 1.57820e+00 811 2003 3 2.08227e+01 1.05971e+00 1287 2003 4 2.15118e+01 1.99560e+00 2819 2003 5 2.67376e+01 1.38315e+00 2585 2003 6 2.83497e+01 1.41502e+00 2014 2003 7 2.92837e+01 1.49363e+00 1491 2003 8 2.86994e+01 1.46396e+00 2046 2003 9 2.84497e+01 1.08132e+00 1999 2003 10 2.39939e+01 1.06946e+00 2596 2003 11 2.16385e+01 1.83948e+00 3133 2003 12 1.49916e+01 1.72326e+00 1292 2004 1 1.34799e+01 8.62860e-01 1394 2004 2 1.37850e+01 7.87193e-01 471 2004 3 1.83600e+01 1.71528e+00 2858 2004 4 2.04530e+01 1.51951e+00 2643 2004 5 2.61500e+01 1.74534e+00 3512 2004 6 2.92989e+01 1.04720e+00 2383 2004 7 3.00340e+01 1.26598e+00 2254 2004 8 2.96380e+01 1.48707e+00 2412 2004 9 2.71602e+01 1.93551e+00 1895 2004 10 2.48550e+01 1.56212e+00 2568 2004 11 2.18166e+01 2.53526e+00 2163 2004 12 1.56184e+01 2.56792e+00 1527 2005 1 1.49528e+01 2.03292e+00 1319 2005 2 1.40333e+01 9.63566e-01 950 2005 3 1.63642e+01 1.66833e+00 1768 2005 4 2.04043e+01 9.07902e-01 2760 2005 5 2.47562e+01 2.36769e+00 2899 2005 6 2.84881e+01 1.34571e+00 2149 2005 7 3.01090e+01 1.59742e+00 2352 2005 8 2.96576e+01 1.75607e+00 1961 2005 9 2.80798e+01 9.76167e-01 2747 2005 10 2.51435e+01 2.48733e+00 3153 2005 11 2.00005e+01 1.78722e+00 2103 2005 12 1.48244e+01 1.80559e+00 1311 2006 1 1.48032e+01 1.19283e+00 1501 2006 2 1.47131e+01 1.60365e+00 1537 2006 3 1.84665e+01 1.16884e+00 2759 2006 4 2.25721e+01 2.06414e+00 3004 2006 5 2.51036e+01 1.66474e+00 3147 2006 6 2.81784e+01 1.33002e+00 3001 2006 7 2.99620e+01 1.28158e+00 2641 2006 8 3.04497e+01 1.15368e+00 2568 2006 9 2.83622e+01 1.48911e+00 2863 2006 10 2.46531e+01 1.96377e+00 3101 2006 11 1.87571e+01 1.68944e+00 1833 2006 12 1.59248e+01 1.45316e+00 889 2007 1 1.46773e+01 1.54120e+00 947 2007 2 1.35840e+01 8.31998e-01 1257 2007 3 1.84533e+01 1.62517e+00 2795 2007 4 2.08145e+01 1.54694e+00 1946 2007 5 2.44182e+01 8.87246e-01 3551 2007 6 2.76642e+01 1.82803e+00 2755 2007 7 3.01045e+01 1.81087e+00 1623 2007 8 3.04382e+01 1.33669e+00 2506 2007 9 2.85158e+01 1.48651e+00 2382 2007 10 2.60263e+01 1.11437e+00 1965 2007 11 1.93230e+01 1.66388e+00 3071 2007 12 1.75978e+01 1.25653e+00 1317 2008 1 1.35691e+01 1.63644e+00 970 2008 2 1.58918e+01 1.39178e+00 1605 2008 3 1.76564e+01 1.55425e+00 2303 2008 4 2.16762e+01 1.14150e+00 2663 2008 5 2.50352e+01 1.59980e+00 2647 2008 6 2.86502e+01 1.28442e+00 2119 2008 7 2.96595e+01 1.19862e+00 1854 2008 8 2.83071e+01 1.28530e+00 1505 2008 9 2.76626e+01 1.72255e+00 2453 2008 10 2.38727e+01 1.92539e+00 3554 2008 11 1.76016e+01 1.99238e+00 2134 2008 12 1.51102e+01 1.28950e+00 1386 2009 1 1.44795e+01 1.94192e+00 1704 2009 2 1.40168e+01 1.33435e+00 1739 2009 3 1.78215e+01 2.31795e+00 2090 2009 4 2.16417e+01 1.64866e+00 2545 2009 5 2.60102e+01 1.11226e+00 2192 2009 6 2.84475e+01 1.35504e+00 2651 2009 7 2.89129e+01 1.04410e+00 1893 2009 8 2.98315e+01 1.38883e+00 2075 2009 9 2.83507e+01 1.08165e+00 2152 2009 10 2.58024e+01 2.53662e+00 2830 2009 11 1.96735e+01 1.46901e+00 1552 2009 12 1.36271e+01 1.40199e+00 448 2010 1 1.15920e+01 2.53258e+00 1285 2010 2 1.23881e+01 1.06668e+00 1815 2010 3 1.54506e+01 1.81702e+00 1854 2010 4 2.14908e+01 1.36549e+00 2500 2010 5 2.68092e+01 2.01608e+00 3313 2010 6 3.02310e+01 1.30685e+00 2884 2010 7 2.97637e+01 1.60387e+00 2547 2010 8 2.98147e+01 1.57507e+00 1147 2010 9 2.89788e+01 1.31103e+00 2702 2010 10 2.46288e+01 1.01207e+00 4268 2010 11 2.00586e+01 1.25729e+00 2940 2010 12 1.43815e+01 3.18371e+00 2018 2011 1 1.10408e+01 9.94250e-01 1528 2011 2 1.40319e+01 1.90814e+00 680 2011 3 1.88764e+01 1.37394e+00 2348 2011 4 2.34392e+01 1.56970e+00 3555 2011 5 2.57298e+01 1.56519e+00 3962 2011 6 2.94043e+01 1.42427e+00 2448 2011 7 2.97060e+01 1.10435e+00 2082 2011 8 3.07601e+01 9.89087e-01 3058 2011 9 2.84372e+01 9.34757e-01 2484 2011 10 2.37754e+01 1.82146e+00 2792 2011 11 1.87063e+01 9.24519e-01 2101 2011 12 1.64859e+01 8.34006e-01 1244 2012 1 1.51218e+01 1.18261e+00 2080 2012 2 1.59557e+01 1.17632e+00 823 2012 3 2.11016e+01 2.09849e+00 2881 2012 4 2.32570e+01 9.03844e-01 3399 2012 5 2.65248e+01 1.10938e+00 3461 2012 6 2.74810e+01 9.42468e-01 2286 2012 7 2.93634e+01 1.51979e+00 1977 2012 8 2.89702e+01 1.28043e+00 1535 2012 9 2.83699e+01 1.37577e+00 2522 2012 10 2.49957e+01 2.09908e+00 2632 2012 11 1.86060e+01 1.11757e+00 2629 2012 12 1.64680e+01 2.24693e+00 1610 2013 1 1.52903e+01 9.13687e-01 1051 2013 2 1.60842e+01 1.25548e+00 1822 2013 3 1.58387e+01 1.37580e+00 2365 2013 4 2.09023e+01 1.93935e+00 2106 2013 5 2.46092e+01 2.04579e+00 2559 2013 6 2.80054e+01 1.60214e+00 2367 2013 7 2.81444e+01 2.19217e+00 1382 2013 8 3.03267e+01 1.45708e+00 2605 2013 9 2.95302e+01 1.63129e+00 2998 2013 10 2.50795e+01 1.86284e+00 2391 2013 11 2.01355e+01 2.33840e+00 1534 2013 12 1.64708e+01 1.61956e+00 1120 2014 1 1.26566e+01 8.05679e-01 1089 2014 2 1.49896e+01 2.05301e+00 1125 2014 3 1.70036e+01 1.27445e+00 1661 2014 4 2.09233e+01 1.96440e+00 2412 2014 5 2.53688e+01 1.49024e+00 2394 2014 6 2.88263e+01 1.84104e+00 2194 2014 7 2.98327e+01 1.26990e+00 2369 2014 8 2.96914e+01 1.16434e+00 2788 2014 9 2.87964e+01 1.23889e+00 1110 2014 10 2.52687e+01 1.58563e+00 3289 2014 11 1.78515e+01 2.42612e+00 2127 2014 12 1.56398e+01 1.21606e+00 1503 2015 1 1.43397e+01 1.20036e+00 1586 2015 2 1.33747e+01 1.34715e+00 1621 2015 3 1.89924e+01 1.88504e+00 1831 2015 4 2.31105e+01 1.87614e+00 1236 2015 5 2.68368e+01 1.75865e+00 3781 2015 6 2.99886e+01 1.11619e+00 2532 2015 7 2.96912e+01 1.30629e+00 1640 2015 8 3.03722e+01 1.53427e+00 2137 2015 9 2.80460e+01 1.66502e+00 1242 2015 10 2.40279e+01 1.32726e+00 2440 2015 11 2.23756e+01 2.69065e+00 1981 2015 12 1.82716e+01 1.54523e+00 1066 2016 1 1.50554e+01 1.80889e+00 1445 2016 2 1.41049e+01 1.51112e+00 1677 2016 3 1.85227e+01 1.95643e+00 1607 2016 4 2.19315e+01 1.90115e+00 2074 2016 5 2.60603e+01 1.22365e+00 3084 2016 6 2.94478e+01 1.22918e+00 2674 2016 7 3.12278e+01 1.12593e+00 3048 2016 8 3.03392e+01 1.17440e+00 2244 2016 9 2.94394e+01 1.09173e+00 2777 2016 10 2.57357e+01 1.78862e+00 2420 2016 11 2.11299e+01 2.19906e+00 2769 2016 12 1.77595e+01 1.75978e+00 1761 2017 1 1.63117e+01 1.51868e+00 1374 2017 2 1.76855e+01 1.68614e+00 2135 2017 3 1.86304e+01 1.65017e+00 2797 2017 4 2.30964e+01 1.14051e+00 2689 2017 5 2.50324e+01 1.31569e+00 2252 2017 6 2.86269e+01 1.58700e+00 1871 2017 7 3.06705e+01 1.23050e+00 1449 2017 8 3.00206e+01 1.52874e+00 2322 2017 9 2.79727e+01 1.58692e+00 2384 2017 10 2.53109e+01 2.06272e+00 3197 2017 11 2.03050e+01 1.21697e+00 2989 2017 12 1.67910e+01 2.17486e+00 1452 2018 1 1.12928e+01 1.04501e+00 1274 2018 2 1.89209e+01 3.02658e+00 1194 2018 3 1.83539e+01 1.64653e+00 2815 2018 4 2.11461e+01 1.16926e+00 2441 2018 5 2.50032e+01 1.70881e+00 2173 2018 6 2.92390e+01 1.70648e+00 1926 2018 7 3.01830e+01 1.04250e+00 2018 2018 8 3.03913e+01 1.21281e+00 1661 2018 9 3.04104e+01 1.05326e+00 3333 2018 10 2.69821e+01 2.35131e+00 2732 2018 11 1.97328e+01 1.79450e+00 1002 2018 12 1.59824e+01 1.64747e+00 1276 2019 1 1.53480e+01 1.79846e+00 1597 2019 2 1.72331e+01 2.25189e+00 762 2019 3 1.84273e+01 1.46042e+00 2065 2019 4 2.20307e+01 1.65866e+00 2304 2019 5 2.73097e+01 2.00572e+00 3590 2019 6 2.93436e+01 1.04363e+00 2064 2019 7 2.99347e+01 1.21327e+00 1837 2019 8 3.02687e+01 1.15197e+00 2248 2019 9 2.91910e+01 1.09906e+00 3880 2019 10 2.64662e+01 1.92558e+00 2556 2019 11 1.90747e+01 2.63345e+00 2014 2019 12 1.65797e+01 1.26991e+00 1542 2020 1 1.60468e+01 1.28929e+00 1922 2020 2 1.54951e+01 1.08840e+00 1643 2020 3 2.08839e+01 3.29141e+00 2574 2020 4 2.38124e+01 1.08953e+00 1999 2020 5 2.48580e+01 1.37507e+00 3029 2020 6 2.93472e+01 1.07754e+00 2455 2020 7 2.98897e+01 1.22878e+00 2226 2020 8 3.08885e+01 1.16808e+00 1335 2020 9 2.84487e+01 2.07760e+00 1560 2020 10 2.55015e+01 1.03879e+00 2758 2020 11 2.17877e+01 1.78781e+00 3234 2020 12 1.53372e+01 1.61800e+00 2675 2021 1 1.40488e+01 1.34012e+00 2063 2021 2 1.60201e+01 1.85168e+00 1887 2021 3 1.87060e+01 1.32279e+00 2428 2021 4 2.14875e+01 1.25128e+00 2502 2021 5 2.53826e+01 1.35992e+00 2971 2021 6 2.80485e+01 1.17779e+00 1638 2021 7 2.96950e+01 1.33522e+00 1404 2021 8 3.02676e+01 1.69000e+00 1808 2021 9 2.85204e+01 1.06155e+00 2354 2021 10 2.59825e+01 1.71135e+00 2418 2021 11 1.90880e+01 1.59471e+00 2870 2021 12 1.78745e+01 1.08627e+00 2427 2022 1 1.58654e+01 2.31397e+00 2549 2022 2 1.51084e+01 2.10947e+00 2150 2022 3 1.92268e+01 9.97290e-01 2557 2022 4 2.28282e+01 1.11912e+00 1999 2022 5 2.65730e+01 1.35742e+00 2842 2022 6 2.98706e+01 1.13985e+00 2530 2022 7 3.04280e+01 1.10517e+00 1987 2022 8 3.07150e+01 1.38058e+00 1947 2022 9 2.83576e+01 1.85839e+00 1857 2022 10 2.35923e+01 1.27872e+00 3244 2022 11 2.16196e+01 2.02584e+00 1770 2022 12 1.71036e+01 2.76740e+00 3232 2023 1 1.45287e+01 8.25898e-01 2436 2023 2 1.66205e+01 1.33293e+00 2137 2023 3 2.04713e+01 1.73347e+00 3033 2023 4 2.26809e+01 9.33724e-01 2150 2023 5 2.51850e+01 1.79318e+00 2407 2023 6 2.73063e+01 1.64414e+00 2215 2023 7 3.02516e+01 1.24561e+00 2812 2023 8 3.12778e+01 9.68396e-01 2724 2023 9 2.93828e+01 1.42253e+00 2318 2023 10 2.38794e+01 1.40287e+00 2804 2023 11 2.03688e+01 1.43688e+00 2048 2023 12 1.47867e+01 1.40383e+00 1549 2024 1 1.32916e+01 1.22011e+00 1276 2024 2 1.50087e+01 8.39983e-01 1912 2024 3 1.97348e+01 1.14925e+00 1799 2024 4 2.06370e+01 1.25658e+00 114