YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 5.12320e+00 8.34948e-02 64 2000 3 5.48905e+00 7.84726e-01 328 2000 4 5.86365e+00 3.30453e-01 208 2000 5 6.70142e+00 5.08972e-01 137 2000 6 1.19063e+01 1.41620e+00 51 2000 7 1.84954e+01 6.38222e-01 392 2000 8 1.91503e+01 6.65013e-01 288 2000 9 1.65235e+01 5.77672e-01 365 2000 10 1.36102e+01 1.06901e+00 312 2000 11 9.50034e+00 8.24637e-01 411 2000 12 8.12564e+00 5.42358e-01 259 2001 1 5.36898e+00 1.10817e+00 206 2001 2 5.12636e+00 1.48662e+00 247 2001 3 4.64535e+00 5.50099e-01 260 2001 4 4.87387e+00 6.97294e-01 306 2001 5 9.73905e+00 1.35881e+00 274 2001 6 1.24286e+01 1.72777e+00 238 2001 7 1.77275e+01 6.97666e-01 815 2001 8 1.86773e+01 1.38763e+00 443 2001 9 1.83554e+01 6.94905e-01 855 2001 10 1.19752e+01 5.51815e-01 399 2001 11 9.13954e+00 1.27090e+00 369 2001 12 8.65741e+00 5.45287e-01 367 2002 1 6.74707e+00 5.20527e-01 411 2002 2 6.26625e+00 4.15199e-01 320 2002 3 5.64863e+00 6.17881e-01 342 2002 4 6.22086e+00 1.00516e+00 384 2002 5 8.18368e+00 9.16511e-01 302 2002 6 1.29678e+01 1.18684e+00 316 2002 7 1.83472e+01 1.23819e+00 1885 2002 8 1.97561e+01 1.18163e+00 2028 2002 9 1.75302e+01 1.53949e+00 1413 2002 10 1.45626e+01 1.53685e+00 1635 2002 11 1.01261e+01 1.04124e+00 1270 2002 12 7.76245e+00 9.39971e-01 1795 2003 1 5.59527e+00 1.00974e+00 431 2003 2 4.44736e+00 8.28591e-01 697 2003 3 3.58343e+00 1.19977e+00 1205 2003 4 3.75376e+00 2.03852e+00 643 2003 5 7.10749e+00 1.79134e+00 449 2003 6 1.25395e+01 2.14683e+00 551 2003 7 1.86493e+01 1.44638e+00 1470 2003 8 1.90425e+01 1.13591e+00 1394 2003 9 1.71882e+01 1.07138e+00 2131 2003 10 1.35799e+01 2.08622e+00 1700 2003 11 8.67897e+00 1.29601e+00 1282 2003 12 6.58749e+00 8.19632e-01 845 2004 1 4.68736e+00 1.22940e+00 783 2004 2 4.71786e+00 4.43963e-01 1597 2004 3 3.99721e+00 5.47162e-01 1082 2004 4 3.75498e+00 1.03990e+00 737 2004 5 8.33162e+00 1.55196e+00 741 2004 6 1.34548e+01 2.34453e+00 994 2004 7 1.70849e+01 1.81730e+00 1325 2004 8 1.79705e+01 6.92611e-01 1982 2004 9 1.71961e+01 1.25130e+00 1982 2004 10 1.32129e+01 1.70203e+00 1521 2004 11 9.19905e+00 7.92318e-01 2099 2004 12 7.02995e+00 1.22221e+00 1286 2005 1 5.53098e+00 7.27715e-01 569 2005 2 4.40916e+00 1.15421e+00 1130 2005 3 3.71903e+00 1.09123e+00 1330 2005 4 5.61115e+00 1.43571e+00 1253 2005 5 7.36755e+00 1.23560e+00 815 2005 6 1.41630e+01 2.79621e+00 447 2005 7 1.87101e+01 1.95002e+00 1142 2005 8 2.01088e+01 1.23747e+00 2483 2005 9 1.85650e+01 1.43975e+00 2368 2005 10 1.25916e+01 1.68365e+00 1358 2005 11 9.55800e+00 9.99451e-01 1563 2005 12 6.77925e+00 1.29883e+00 1429 2006 1 6.25503e+00 5.03245e-01 1327 2006 2 5.17498e+00 3.78885e-01 1047 2006 3 3.76758e+00 1.15291e+00 1443 2006 4 5.96940e+00 1.03660e+00 1411 2006 5 7.84577e+00 1.66614e+00 834 2006 6 1.50251e+01 1.98703e+00 430 2006 7 1.84685e+01 1.45550e+00 1713 2006 8 2.03530e+01 1.16541e+00 2667 2006 9 1.73290e+01 1.06590e+00 2163 2006 10 1.27620e+01 1.72804e+00 1775 2006 11 1.06306e+01 6.97195e-01 728 2006 12 8.41955e+00 1.03911e+00 1671 2007 1 7.21214e+00 8.38327e-01 739 2007 2 5.56968e+00 6.95587e-01 934 2007 3 5.22470e+00 4.14352e-01 1536 2007 4 4.12016e+00 1.01783e+00 1082 2007 5 8.72857e+00 2.38940e+00 1107 2007 6 1.39381e+01 1.58648e+00 871 2007 7 1.74653e+01 1.86922e+00 1898 2007 8 1.88978e+01 1.34533e+00 2348 2007 9 1.70090e+01 1.05566e+00 2127 2007 10 1.39974e+01 1.10081e+00 1667 2007 11 9.14565e+00 2.04994e+00 823 2007 12 6.72523e+00 8.93803e-01 922 2008 1 5.19458e+00 7.92516e-01 1057 2008 2 4.26175e+00 7.03230e-01 1140 2008 3 4.23084e+00 2.32764e-01 1434 2008 4 6.81487e+00 1.83486e+00 1345 2008 5 9.32952e+00 2.17936e+00 1019 2008 6 1.56520e+01 1.76294e+00 1525 2008 7 1.95110e+01 1.52953e+00 1670 2008 8 1.98298e+01 1.08199e+00 3412 2008 9 1.73863e+01 1.22024e+00 1951 2008 10 1.32070e+01 1.85284e+00 1714 2008 11 9.91227e+00 1.25793e+00 1177 2008 12 7.39380e+00 9.21936e-01 1082 2009 1 5.32829e+00 1.21801e+00 1403 2009 2 4.29148e+00 9.95622e-01 1074 2009 3 3.70468e+00 8.02142e-01 1147 2009 4 4.85972e+00 1.12164e+00 1268 2009 5 1.00208e+01 1.46786e+00 791 2009 6 1.25552e+01 1.68124e+00 530 2009 7 1.66874e+01 1.84302e+00 1537 2009 8 2.00660e+01 1.34935e+00 2109 2009 9 1.77692e+01 1.19345e+00 2676 2009 10 1.29522e+01 1.96260e+00 1509 2009 11 1.02093e+01 6.85063e-01 1137 2009 12 8.56307e+00 1.23488e+00 1177 2010 1 6.07548e+00 1.03437e+00 1365 2010 2 4.51763e+00 1.31980e+00 820 2010 3 4.06840e+00 9.25837e-01 1167 2010 4 7.02119e+00 6.21682e-01 1107 2010 5 1.05961e+01 2.53251e+00 1372 2010 6 1.65524e+01 1.96095e+00 1551 2010 7 2.01734e+01 1.51462e+00 2806 2010 8 1.92395e+01 1.36400e+00 2342 2010 9 1.80130e+01 1.71081e+00 2105 2010 10 1.30548e+01 1.38467e+00 2109 2010 11 9.87758e+00 8.31794e-01 1243 2010 12 7.91075e+00 1.37758e+00 887 2011 1 6.64907e+00 1.61970e+00 1072 2011 2 4.56716e+00 8.39572e-01 1209 2011 3 4.54055e+00 4.04580e-01 1462 2011 4 5.14176e+00 8.40827e-01 1045 2011 5 8.30400e+00 1.39258e+00 489 2011 6 1.41825e+01 2.12361e+00 1018 2011 7 1.86786e+01 1.59647e+00 2091 2011 8 1.93416e+01 1.62470e+00 1954 2011 9 1.69440e+01 1.03925e+00 1657 2011 10 1.42080e+01 1.22179e+00 1733 2011 11 1.06797e+01 1.31601e+00 1233 2011 12 8.47487e+00 1.34057e+00 1175 2012 1 7.18673e+00 9.89288e-01 1351 2012 2 6.07895e+00 7.57221e-01 1714 2012 3 5.31312e+00 9.02356e-01 586 2012 4 7.21393e+00 1.61156e+00 2331 2012 5 1.13336e+01 2.94824e+00 967 2012 6 1.48336e+01 2.85814e+00 1193 2012 7 2.05540e+01 1.17019e+00 2420 2012 8 2.12731e+01 1.08640e+00 2539 2012 9 1.90907e+01 1.73995e+00 2648 2012 10 1.45990e+01 1.03878e+00 1982 2012 11 1.08682e+01 1.17948e+00 1385 2012 12 9.43581e+00 9.95287e-01 830 2013 1 8.14982e+00 1.01053e+00 1026 2013 2 6.65225e+00 1.19137e+00 998 2013 3 5.28087e+00 6.72843e-01 1263 2013 4 6.41848e+00 1.98422e+00 1656 2013 5 9.85894e+00 1.57632e+00 1409 2013 6 1.41055e+01 1.81042e+00 1068 2013 7 2.06569e+01 1.75967e+00 1642 2013 8 1.94387e+01 1.48906e+00 2515 2013 9 1.65709e+01 1.30569e+00 1842 2013 10 1.39619e+01 1.25777e+00 2092 2013 11 9.94386e+00 1.12525e+00 1191 2013 12 7.22482e+00 8.73468e-01 722 2014 1 6.58840e+00 6.91360e-01 722 2014 2 4.91929e+00 1.28597e+00 752 2014 3 4.66715e+00 5.90909e-01 1322 2014 4 5.00567e+00 7.38655e-01 1357 2014 5 9.35611e+00 1.31630e+00 808 2014 6 1.46438e+01 1.92372e+00 1858 2014 7 1.84100e+01 1.45459e+00 1953 2014 8 1.93810e+01 1.28100e+00 3244 2014 9 1.84739e+01 1.96330e+00 2743 2014 10 1.41861e+01 2.13092e+00 1456 2014 11 1.12362e+01 9.04254e-01 874 2014 12 9.09964e+00 9.26136e-01 673 2015 1 7.00663e+00 1.19946e+00 817 2015 2 6.30615e+00 8.50230e-01 585 2015 3 4.66425e+00 1.19545e+00 1671 2015 4 4.94704e+00 8.44085e-01 1175 2015 5 9.49037e+00 1.11088e+00 739 2015 6 1.39177e+01 2.48857e+00 509 2015 7 1.83736e+01 1.65875e+00 1735 2015 8 1.92985e+01 1.30779e+00 2993 2015 9 1.76033e+01 1.73421e+00 1752 2015 10 1.35268e+01 1.57906e+00 2072 2015 11 1.11474e+01 9.68193e-01 1475 2015 12 9.27573e+00 1.05702e+00 905 2016 1 7.65269e+00 1.03541e+00 1383 2016 2 6.27193e+00 1.05986e+00 954 2016 3 5.80193e+00 8.55152e-01 1434 2016 4 6.25013e+00 8.55559e-01 2317 2016 5 8.61758e+00 1.11778e+00 768 2016 6 1.52631e+01 2.03058e+00 2031 2016 7 1.94768e+01 1.68165e+00 1796 2016 8 2.07175e+01 1.00674e+00 2908 2016 9 1.88730e+01 1.12116e+00 1996 2016 10 1.53548e+01 1.64683e+00 1817 2016 11 1.11166e+01 1.24091e+00 1274 2016 12 9.68395e+00 1.10047e+00 1301 2017 1 7.77623e+00 9.36959e-01 1167 2017 2 6.72144e+00 6.59050e-01 930 2017 3 5.57612e+00 1.30644e+00 1413 2017 4 5.57428e+00 1.69638e+00 942 2017 5 9.10778e+00 1.55459e+00 731 2017 6 1.48147e+01 2.62389e+00 1268 2017 7 1.81417e+01 1.69933e+00 1790 2017 8 1.93415e+01 1.22012e+00 3349 2017 9 1.73902e+01 9.30579e-01 1845 2017 10 1.54580e+01 9.81341e-01 1608 2017 11 1.10720e+01 1.30867e+00 1533 2017 12 8.47347e+00 1.18693e+00 739 2018 1 5.71680e+00 1.07121e+00 898 2018 2 4.91599e+00 9.93173e-01 722 2018 3 5.28665e+00 6.57506e-01 1000 2018 4 5.08835e+00 8.00366e-01 1264 2018 5 1.04721e+01 1.49151e+00 263 2018 6 1.50742e+01 1.42933e+00 890 2018 7 1.97597e+01 1.43122e+00 2001 2018 8 2.15166e+01 1.01945e+00 2966 2018 9 1.94437e+01 1.91522e+00 1978 2018 10 1.41478e+01 1.49565e+00 1467 2018 11 1.05529e+01 1.25808e+00 1113 2018 12 7.21506e+00 1.06219e+00 1346 2019 1 5.99292e+00 1.43305e+00 977 2019 2 4.77340e+00 6.81998e-01 984 2019 3 4.35406e+00 5.04280e-01 1761 2019 4 5.17920e+00 8.05000e-01 1259 2019 5 9.44779e+00 1.51152e+00 731 2019 6 1.23642e+01 1.90068e+00 683 2019 7 1.95591e+01 1.70515e+00 2480 2019 8 2.03319e+01 1.03324e+00 2840 2019 9 1.77147e+01 8.57588e-01 3682 2019 10 1.39365e+01 1.45772e+00 1749 2019 11 1.08914e+01 1.40835e+00 1891 2019 12 7.93763e+00 6.49280e-01 1288 2020 1 7.24837e+00 5.56090e-01 1411 2020 2 6.56107e+00 5.30607e-01 1521 2020 3 6.12184e+00 5.73698e-01 1891 2020 4 6.11874e+00 4.63421e-01 1607 2020 5 8.55985e+00 1.72474e+00 2206 2020 6 1.56130e+01 2.26938e+00 2081 2020 7 2.02975e+01 1.96837e+00 1863 2020 8 2.13960e+01 1.26031e+00 1742 2020 9 1.86940e+01 1.05858e+00 2602 2020 10 1.50905e+01 1.24154e+00 2465 2020 11 1.18628e+01 9.75890e-01 1691 2020 12 8.63526e+00 1.05639e+00 1521 2021 1 6.66258e+00 5.18520e-01 1524 2021 2 6.23291e+00 3.98205e-01 1260 2021 3 5.98996e+00 8.91125e-01 2624 2021 4 6.90400e+00 8.12328e-01 2375 2021 5 1.08407e+01 1.85352e+00 2680 2021 6 1.69829e+01 1.92651e+00 1653 2021 7 1.94328e+01 1.04382e+00 2035 2021 8 2.01020e+01 1.29229e+00 1970 2021 9 1.83444e+01 6.70058e-01 2478 2021 10 1.60721e+01 1.21804e+00 1773 2021 11 1.19395e+01 7.60019e-01 2280 2021 12 1.01685e+01 6.09811e-01 1373 2022 1 7.87422e+00 6.97078e-01 818 2022 2 6.83274e+00 8.03393e-01 1755 2022 3 6.51741e+00 6.46981e-01 1793 2022 4 6.36716e+00 6.83155e-01 1404 2022 5 1.10565e+01 2.90776e+00 1140 2022 6 1.57490e+01 1.59578e+00 2775 2022 7 1.96690e+01 1.12729e+00 2967 2022 8 2.03263e+01 1.17895e+00 2512 2022 9 1.83259e+01 1.48036e+00 2649 2022 10 1.40074e+01 8.11247e-01 2223 2022 11 1.23799e+01 1.27785e+00 2612 2022 12 8.87129e+00 1.20961e+00 1690 2023 1 7.51906e+00 4.08094e-01 925 2023 2 6.92814e+00 6.85016e-01 876 2023 3 6.30511e+00 5.42601e-01 2255 2023 4 7.24762e+00 1.16251e+00 1498 2023 5 1.03899e+01 1.52657e+00 3700 2023 6 1.62405e+01 2.02291e+00 1758 2023 7 2.10223e+01 1.46956e+00 2167 2023 8 1.94024e+01 9.45932e-01 2290 2023 9 1.87236e+01 1.87987e+00 2545 2023 10 1.52033e+01 1.47099e+00 2259 2023 11 1.07006e+01 7.94067e-01 1998 2023 12 8.22379e+00 7.15295e-01 1619 2024 1 6.80104e+00 9.32158e-01 1813 2024 2 4.47644e+00 3.26377e-01 2040 2024 3 5.11473e+00 8.01041e-01 1344 2024 4 4.65895e+00 7.05311e-01 128