YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 1.82531e+01 2.54064e-01 128 2000 3 2.06180e+01 1.08595e+00 640 2000 4 2.16639e+01 1.45362e+00 719 2000 5 2.59227e+01 2.08269e+00 741 2000 6 2.73348e+01 1.29126e+00 439 2000 7 2.88609e+01 7.22444e-01 361 2000 8 2.99743e+01 4.40619e-01 256 2000 9 2.65059e+01 1.09660e+00 183 2000 10 2.25416e+01 1.05558e+00 719 2000 11 2.12525e+01 2.86313e+00 319 2000 12 1.44914e+01 1.61939e-02 7 2001 1 1.17947e+01 3.38897e-01 128 2001 2 1.78066e+01 1.88951e+00 400 2001 3 1.61173e+01 1.62257e+00 421 2001 4 2.15115e+01 2.04588e+00 806 2001 5 2.58082e+01 1.03002e+00 681 2001 6 2.75019e+01 8.94903e-01 128 2001 7 3.01082e+01 5.06049e-01 132 2001 8 2.92159e+01 8.15161e-01 772 2001 9 2.72141e+01 1.71047e+00 365 2001 10 2.10852e+01 1.71222e+00 382 2001 11 1.94456e+01 8.75771e-01 733 2001 12 1.93241e+01 1.43594e+00 362 2002 1 nan nan 0 2002 2 1.51623e+01 2.07511e+00 455 2002 3 2.05327e+01 2.01417e+00 237 2002 4 2.54139e+01 1.71903e+00 540 2002 5 2.59533e+01 2.23319e+00 550 2002 6 2.86156e+01 3.79591e-01 446 2002 7 2.94784e+01 9.24735e-01 1381 2002 8 2.90582e+01 1.18700e+00 2113 2002 9 2.82041e+01 9.59646e-01 1864 2002 10 2.64331e+01 2.04823e+00 2497 2002 11 2.01753e+01 2.46061e+00 1863 2002 12 1.42185e+01 1.14282e+00 982 2003 1 1.17846e+01 1.38658e+00 1606 2003 2 1.45128e+01 1.62250e+00 999 2003 3 2.11141e+01 1.62120e+00 1162 2003 4 2.15431e+01 1.97091e+00 2735 2003 5 2.71387e+01 1.21474e+00 2414 2003 6 2.85099e+01 1.41794e+00 1728 2003 7 2.95072e+01 1.20865e+00 1535 2003 8 2.85971e+01 1.54308e+00 2032 2003 9 2.77826e+01 1.00418e+00 1812 2003 10 2.36715e+01 1.20380e+00 2497 2003 11 2.13963e+01 1.88726e+00 2472 2003 12 1.41923e+01 1.38936e+00 924 2004 1 1.30633e+01 1.08672e+00 1443 2004 2 1.33904e+01 9.22945e-01 519 2004 3 1.87176e+01 1.51118e+00 2815 2004 4 2.09214e+01 1.85825e+00 2591 2004 5 2.65767e+01 1.83953e+00 3468 2004 6 2.93357e+01 1.11752e+00 2231 2004 7 3.01832e+01 1.59167e+00 2406 2004 8 2.95924e+01 1.60353e+00 2442 2004 9 2.68229e+01 1.92590e+00 1998 2004 10 2.47069e+01 1.73126e+00 2464 2004 11 2.16576e+01 2.80143e+00 1611 2004 12 1.63117e+01 2.39908e+00 1123 2005 1 1.40937e+01 2.33098e+00 899 2005 2 1.45039e+01 1.20387e+00 1037 2005 3 1.65785e+01 1.94313e+00 1475 2005 4 2.05011e+01 1.12595e+00 2763 2005 5 2.48911e+01 2.57974e+00 2648 2005 6 2.83489e+01 1.51789e+00 2058 2005 7 3.03593e+01 1.33991e+00 2351 2005 8 2.98033e+01 1.86513e+00 2013 2005 9 2.78838e+01 1.17826e+00 3003 2005 10 2.51517e+01 2.42599e+00 2496 2005 11 2.00758e+01 1.97524e+00 1558 2005 12 1.44070e+01 1.78796e+00 1216 2006 1 1.49995e+01 1.31856e+00 1416 2006 2 1.42897e+01 1.50662e+00 1587 2006 3 1.87280e+01 1.41111e+00 2763 2006 4 2.31557e+01 2.16841e+00 3083 2006 5 2.53650e+01 1.84925e+00 3007 2006 6 2.86921e+01 1.16524e+00 2666 2006 7 2.98746e+01 1.44560e+00 2434 2006 8 3.02385e+01 1.24176e+00 2607 2006 9 2.78942e+01 1.36160e+00 2472 2006 10 2.38398e+01 2.18986e+00 2926 2006 11 1.84523e+01 1.40079e+00 1382 2006 12 1.63363e+01 1.28004e+00 590 2007 1 1.39339e+01 1.65715e+00 829 2007 2 1.34322e+01 1.32136e+00 1243 2007 3 1.89740e+01 2.01790e+00 2520 2007 4 2.10283e+01 2.13999e+00 2079 2007 5 2.45997e+01 9.72822e-01 3213 2007 6 2.78799e+01 1.78523e+00 2424 2007 7 3.02482e+01 1.52743e+00 1808 2007 8 3.04302e+01 1.30931e+00 2511 2007 9 2.81457e+01 1.50190e+00 2162 2007 10 2.53508e+01 1.64737e+00 1810 2007 11 1.85850e+01 1.66045e+00 2773 2007 12 1.70266e+01 1.87258e+00 1240 2008 1 1.37625e+01 2.26967e+00 584 2008 2 1.57303e+01 1.69389e+00 1483 2008 3 1.79467e+01 1.58892e+00 2038 2008 4 2.18638e+01 1.87099e+00 2621 2008 5 2.51812e+01 2.08935e+00 2634 2008 6 2.90909e+01 1.12806e+00 2116 2008 7 2.95579e+01 1.34742e+00 1834 2008 8 2.83728e+01 1.49728e+00 1534 2008 9 2.72439e+01 1.91842e+00 2227 2008 10 2.31279e+01 2.41894e+00 2878 2008 11 1.70208e+01 2.31993e+00 1715 2008 12 1.53215e+01 1.49107e+00 1145 2009 1 1.44573e+01 2.63152e+00 1320 2009 2 1.41298e+01 1.71185e+00 1642 2009 3 1.83581e+01 2.68282e+00 1904 2009 4 2.19514e+01 1.99821e+00 2407 2009 5 2.62890e+01 1.45906e+00 2218 2009 6 2.89757e+01 1.34079e+00 2666 2009 7 2.89077e+01 1.38622e+00 2051 2009 8 2.94664e+01 1.53449e+00 1979 2009 9 2.82022e+01 8.72165e-01 1955 2009 10 2.58025e+01 2.86184e+00 2527 2009 11 1.90060e+01 1.51928e+00 1414 2009 12 1.39896e+01 2.21178e+00 553 2010 1 1.15363e+01 3.08617e+00 942 2010 2 1.20196e+01 1.53349e+00 1797 2010 3 1.55155e+01 2.16013e+00 1856 2010 4 2.17852e+01 1.62241e+00 2396 2010 5 2.72730e+01 2.00122e+00 3318 2010 6 3.03140e+01 1.30860e+00 2997 2010 7 2.99961e+01 1.65226e+00 2481 2010 8 2.94094e+01 1.63162e+00 1293 2010 9 2.86730e+01 1.35915e+00 2664 2010 10 2.43085e+01 1.02939e+00 3787 2010 11 1.93285e+01 1.30792e+00 2265 2010 12 1.38100e+01 2.68820e+00 1170 2011 1 1.09701e+01 1.48879e+00 1255 2011 2 1.47716e+01 2.63243e+00 857 2011 3 1.94161e+01 1.88711e+00 2215 2011 4 2.37905e+01 1.76937e+00 3522 2011 5 2.59828e+01 2.07186e+00 3685 2011 6 2.95967e+01 1.64802e+00 2762 2011 7 2.93789e+01 1.13408e+00 1874 2011 8 3.04686e+01 1.22816e+00 2881 2011 9 2.78797e+01 9.98572e-01 2477 2011 10 2.27600e+01 1.96842e+00 2198 2011 11 1.78951e+01 1.06069e+00 1997 2011 12 1.57651e+01 1.09499e+00 1059 2012 1 1.51129e+01 1.82361e+00 1850 2012 2 1.54699e+01 1.79412e+00 612 2012 3 2.18625e+01 2.23518e+00 2849 2012 4 2.34240e+01 1.27053e+00 3215 2012 5 2.68732e+01 1.12218e+00 3161 2012 6 2.72797e+01 1.36350e+00 1945 2012 7 2.94093e+01 1.46369e+00 2127 2012 8 2.90116e+01 1.41080e+00 1407 2012 9 2.82200e+01 1.47465e+00 2355 2012 10 2.42619e+01 2.31674e+00 2605 2012 11 1.80405e+01 1.33665e+00 2638 2012 12 1.67203e+01 2.27367e+00 1405 2013 1 1.52021e+01 1.65705e+00 1011 2013 2 1.59555e+01 1.75806e+00 1511 2013 3 1.58339e+01 1.68154e+00 2460 2013 4 2.12132e+01 1.77134e+00 2150 2013 5 2.50364e+01 2.28359e+00 2661 2013 6 2.82746e+01 1.57265e+00 2262 2013 7 2.82401e+01 1.90172e+00 1092 2013 8 3.01534e+01 1.66814e+00 2286 2013 9 2.92495e+01 1.75973e+00 2396 2013 10 2.47015e+01 1.97296e+00 2186 2013 11 1.94669e+01 2.48714e+00 1497 2013 12 1.65469e+01 1.78002e+00 1097 2014 1 1.23920e+01 8.09827e-01 902 2014 2 1.47873e+01 1.80772e+00 1072 2014 3 1.71553e+01 1.49454e+00 1913 2014 4 2.16813e+01 1.74384e+00 2380 2014 5 2.55844e+01 1.57626e+00 2377 2014 6 2.89439e+01 1.74253e+00 2009 2014 7 2.99158e+01 1.05543e+00 2032 2014 8 3.00296e+01 1.22402e+00 2427 2014 9 2.78982e+01 1.68746e+00 1282 2014 10 2.46568e+01 1.70772e+00 3145 2014 11 1.64355e+01 2.21115e+00 1667 2014 12 1.55794e+01 1.26312e+00 1467 2015 1 1.40741e+01 1.12752e+00 1481 2015 2 1.32695e+01 1.47440e+00 1569 2015 3 1.97390e+01 2.36426e+00 1676 2015 4 2.31906e+01 1.92535e+00 1076 2015 5 2.70769e+01 1.82857e+00 3445 2015 6 3.00257e+01 1.29476e+00 2469 2015 7 2.95249e+01 1.37788e+00 1322 2015 8 3.04692e+01 1.40465e+00 2284 2015 9 2.76848e+01 2.02120e+00 1060 2015 10 2.37022e+01 1.65142e+00 2072 2015 11 2.22734e+01 3.43947e+00 1547 2015 12 1.80964e+01 1.70380e+00 990 2016 1 1.37742e+01 1.58298e+00 1167 2016 2 1.41697e+01 1.95655e+00 1418 2016 3 1.85028e+01 2.00084e+00 1540 2016 4 2.24655e+01 1.80028e+00 2099 2016 5 2.61737e+01 1.49237e+00 2905 2016 6 2.94952e+01 1.41513e+00 2535 2016 7 3.12220e+01 1.29097e+00 2810 2016 8 3.03882e+01 1.42344e+00 2372 2016 9 2.93206e+01 1.19497e+00 2648 2016 10 2.49646e+01 1.75624e+00 2818 2016 11 2.03449e+01 2.23572e+00 2427 2016 12 1.76490e+01 1.52219e+00 1252 2017 1 1.59699e+01 1.87670e+00 1076 2017 2 1.79739e+01 1.96163e+00 2119 2017 3 1.90412e+01 2.19357e+00 2670 2017 4 2.31835e+01 1.57929e+00 2550 2017 5 2.50579e+01 1.82926e+00 1867 2017 6 2.86753e+01 1.90759e+00 1572 2017 7 3.06209e+01 1.19728e+00 1409 2017 8 3.00511e+01 1.51224e+00 2103 2017 9 2.79051e+01 1.77429e+00 2187 2017 10 2.46563e+01 2.60272e+00 3240 2017 11 1.96038e+01 1.33605e+00 2663 2017 12 1.64163e+01 2.73871e+00 1218 2018 1 1.15200e+01 1.30880e+00 1167 2018 2 2.04717e+01 3.00497e+00 1106 2018 3 1.83326e+01 1.95350e+00 2669 2018 4 2.15029e+01 1.22495e+00 2248 2018 5 2.56215e+01 2.07935e+00 2175 2018 6 2.96504e+01 1.42799e+00 1757 2018 7 3.01090e+01 1.42971e+00 1730 2018 8 3.03621e+01 9.44080e-01 1706 2018 9 3.03241e+01 1.20407e+00 3042 2018 10 2.64721e+01 2.41214e+00 2647 2018 11 1.88948e+01 2.43489e+00 833 2018 12 1.57782e+01 1.70626e+00 1004 2019 1 1.50604e+01 2.24709e+00 1473 2019 2 1.73197e+01 2.70451e+00 993 2019 3 1.82705e+01 1.69665e+00 1673 2019 4 2.22404e+01 1.96374e+00 2158 2019 5 2.78670e+01 1.96547e+00 3504 2019 6 2.95453e+01 1.09838e+00 1831 2019 7 2.99488e+01 1.29486e+00 2238 2019 8 3.04717e+01 1.01339e+00 2181 2019 9 2.90923e+01 1.19422e+00 3388 2019 10 2.58131e+01 2.18498e+00 2533 2019 11 1.84554e+01 2.49700e+00 1949 2019 12 1.61646e+01 1.62200e+00 1512 2020 1 1.52219e+01 1.57848e+00 1913 2020 2 1.52594e+01 1.06133e+00 1610 2020 3 2.17343e+01 3.75921e+00 2465 2020 4 2.37280e+01 1.14543e+00 2044 2020 5 2.49332e+01 1.26820e+00 2639 2020 6 2.94137e+01 1.25221e+00 2337 2020 7 3.00620e+01 1.23423e+00 2214 2020 8 3.07967e+01 1.23742e+00 1753 2020 9 2.85437e+01 2.09901e+00 1468 2020 10 2.53942e+01 1.16912e+00 2497 2020 11 2.08983e+01 1.93585e+00 3092 2020 12 1.44478e+01 1.47100e+00 2528 2021 1 1.39027e+01 1.69737e+00 1890 2021 2 1.58643e+01 2.17426e+00 1916 2021 3 1.88407e+01 1.66681e+00 2314 2021 4 2.16380e+01 1.61578e+00 2400 2021 5 2.56556e+01 1.56292e+00 2547 2021 6 2.84229e+01 1.30140e+00 1369 2021 7 2.96678e+01 1.26413e+00 1432 2021 8 3.04355e+01 1.60284e+00 1454 2021 9 2.84520e+01 9.99973e-01 2373 2021 10 2.57368e+01 1.90417e+00 2589 2021 11 1.82293e+01 1.71685e+00 2744 2021 12 1.75938e+01 1.41198e+00 2331 2022 1 1.49467e+01 2.68540e+00 2586 2022 2 1.55490e+01 2.46901e+00 2179 2022 3 1.93949e+01 1.06682e+00 2713 2022 4 2.30746e+01 1.45301e+00 1874 2022 5 2.67220e+01 1.33491e+00 2754 2022 6 2.98867e+01 1.31695e+00 2427 2022 7 3.04018e+01 1.15629e+00 2010 2022 8 3.07497e+01 1.23879e+00 2175 2022 9 2.81484e+01 1.76685e+00 1832 2022 10 2.30010e+01 1.47342e+00 3369 2022 11 2.10805e+01 2.17072e+00 1853 2022 12 1.67702e+01 3.48266e+00 3346 2023 1 1.46302e+01 1.11322e+00 2371 2023 2 1.69732e+01 1.74349e+00 1877 2023 3 2.03440e+01 2.23863e+00 2915 2023 4 2.28512e+01 1.17691e+00 1814 2023 5 2.55559e+01 1.91231e+00 2495 2023 6 2.78007e+01 1.73842e+00 2269 2023 7 3.05814e+01 1.48339e+00 2441 2023 8 3.11420e+01 9.74409e-01 2857 2023 9 2.89446e+01 1.35737e+00 2396 2023 10 2.31775e+01 1.39535e+00 2801 2023 11 1.99032e+01 1.85476e+00 1981 2023 12 1.43301e+01 1.44995e+00 1351 2024 1 1.33230e+01 1.68028e+00 1218 2024 2 1.54218e+01 1.06202e+00 1859 2024 3 2.00393e+01 1.10240e+00 1750 2024 4 2.13195e+01 3.93051e-01 132