YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 3.30833e-01 3.24235e-01 6 2000 3 1.71126e+00 9.41816e-01 91 2000 4 2.69937e+00 5.39211e-01 87 2000 5 8.45300e+00 1.17243e+00 40 2000 6 1.31556e+01 1.42609e+00 236 2000 7 1.83966e+01 8.57233e-01 586 2000 8 1.88887e+01 5.82715e-01 622 2000 9 1.70881e+01 2.13786e+00 372 2000 10 1.22620e+01 8.89590e-01 557 2000 11 9.03340e+00 1.86025e+00 294 2000 12 4.02365e+00 1.25476e+00 74 2001 1 4.76377e-01 1.71282e-01 69 2001 2 nan nan 0 2001 3 4.50161e-01 3.14751e-01 218 2001 4 2.66321e+00 1.26605e+00 131 2001 5 8.65886e+00 9.90013e-01 88 2001 6 1.11900e+01 0.00000e+00 1 2001 7 1.68511e+01 1.10568e+00 747 2001 8 2.05485e+01 1.11491e+00 882 2001 9 1.74871e+01 1.82574e+00 971 2001 10 1.20234e+01 2.28412e+00 398 2001 11 8.07634e+00 7.57931e-01 433 2001 12 6.11248e+00 5.79976e-01 286 2002 1 2.50726e+00 5.11021e-01 106 2002 2 1.11548e+00 8.16572e-01 147 2002 3 1.16549e+00 3.51836e-01 102 2002 4 2.11301e+00 1.24137e+00 204 2002 5 5.69924e+00 1.07508e+00 138 2002 6 1.23601e+01 2.03257e+00 218 2002 7 2.03304e+01 1.42322e+00 1560 2002 8 2.03327e+01 7.37562e-01 3176 2002 9 1.87135e+01 1.30836e+00 2140 2002 10 1.24672e+01 1.46704e+00 822 2002 11 6.46373e+00 1.19305e+00 244 2002 12 2.67900e+00 1.12043e+00 321 2003 1 3.25303e-01 1.34620e-01 33 2003 2 6.55510e-01 8.78324e-02 49 2003 3 1.06707e+00 2.92601e-01 128 2003 4 2.50413e+00 1.11247e+00 298 2003 5 4.66646e+00 1.35087e+00 48 2003 6 1.36567e+01 1.92894e+00 173 2003 7 1.67847e+01 1.40560e+00 1879 2003 8 2.03819e+01 1.13508e+00 2422 2003 9 1.83258e+01 1.84080e+00 2125 2003 10 1.05786e+01 9.47971e-01 707 2003 11 7.53456e+00 8.06506e-01 626 2003 12 3.33337e+00 1.09471e+00 372 2004 1 2.59559e+00 2.43070e-02 17 2004 2 1.60769e-02 3.27453e-01 65 2004 3 6.12983e-01 5.81626e-01 171 2004 4 2.55961e+00 7.74201e-01 469 2004 5 6.18007e+00 1.22168e+00 134 2004 6 1.26863e+01 1.61295e+00 408 2004 7 1.70758e+01 1.47016e+00 1731 2004 8 1.84127e+01 1.04241e+00 2010 2004 9 1.77246e+01 7.85156e-01 2173 2004 10 1.45315e+01 1.36288e+00 921 2004 11 7.59777e+00 7.78607e-01 973 2004 12 4.63891e+00 1.04370e+00 137 2005 1 1.49033e+00 3.94719e-01 30 2005 2 4.41264e-01 1.39598e-01 91 2005 3 3.35528e-01 5.16243e-01 161 2005 4 3.91304e+00 9.88919e-01 252 2005 5 6.19962e+00 1.94149e+00 384 2005 6 1.41862e+01 1.95863e+00 284 2005 7 1.96875e+01 2.17595e+00 2393 2005 8 2.08774e+01 1.09824e+00 2739 2005 9 1.90450e+01 8.50945e-01 2653 2005 10 1.30649e+01 1.40629e+00 856 2005 11 9.16045e+00 1.87440e+00 344 2005 12 3.17779e+00 1.12969e+00 199 2006 1 1.44476e+00 6.01711e-01 286 2006 2 -8.31111e-01 8.85619e-02 9 2006 3 7.61584e-01 5.24704e-01 483 2006 4 3.84811e+00 1.89456e+00 457 2006 5 8.56723e+00 6.15228e-01 182 2006 6 1.60406e+01 1.12390e+00 1373 2006 7 1.96873e+01 1.39177e+00 2248 2006 8 2.12675e+01 1.12637e+00 2570 2006 9 1.76508e+01 1.91321e+00 1137 2006 10 1.19015e+01 2.76126e+00 741 2006 11 7.42038e+00 7.84847e-01 396 2006 12 3.64312e+00 1.00344e+00 301 2007 1 2.52991e+00 4.66574e-01 218 2007 2 3.19167e-01 3.65134e-01 66 2007 3 2.50365e-01 4.07692e-01 219 2007 4 1.52179e+00 6.20057e-01 318 2007 5 8.59885e+00 1.34943e+00 170 2007 6 1.50921e+01 1.80381e+00 912 2007 7 1.84476e+01 1.53184e+00 2562 2007 8 2.06292e+01 9.04840e-01 2791 2007 9 1.74142e+01 2.23630e+00 1383 2007 10 1.28013e+01 1.80493e+00 579 2007 11 9.00209e+00 1.64813e+00 558 2007 12 3.00011e+00 1.69792e+00 95 2008 1 4.55000e-01 1.29976e-01 8 2008 2 1.84833e-01 3.89096e-01 30 2008 3 5.34321e-01 1.82638e-01 184 2008 4 2.05817e+00 1.64666e+00 263 2008 5 7.12436e+00 1.38374e+00 196 2008 6 1.32769e+01 1.69749e+00 455 2008 7 1.77642e+01 1.74303e+00 1767 2008 8 2.02708e+01 5.54529e-01 3691 2008 9 1.83078e+01 1.39729e+00 2206 2008 10 1.28672e+01 1.79506e+00 1094 2008 11 8.08957e+00 9.98437e-01 185 2008 12 4.06240e+00 2.72509e-01 50 2009 1 nan nan 0 2009 2 -4.52500e-01 3.76771e-01 4 2009 3 8.38511e-01 4.78299e-01 282 2009 4 2.13290e+00 6.71210e-01 492 2009 5 6.95759e+00 1.47377e+00 230 2009 6 1.18197e+01 2.55526e+00 333 2009 7 1.58046e+01 9.25666e-01 1666 2009 8 1.79375e+01 1.06105e+00 2070 2009 9 1.79090e+01 8.98538e-01 2667 2009 10 1.23882e+01 1.40710e+00 603 2009 11 7.56037e+00 4.33833e-01 913 2009 12 4.97093e+00 1.06472e+00 140 2010 1 7.92931e-01 1.90783e-01 58 2010 2 2.73750e-01 1.00458e-01 108 2010 3 2.03571e+00 1.21804e+00 609 2010 4 4.99605e+00 1.06617e+00 688 2010 5 8.10145e+00 2.32184e+00 323 2010 6 1.51332e+01 1.20716e+00 1026 2010 7 1.96180e+01 2.09347e+00 2036 2010 8 2.10542e+01 1.15551e+00 2165 2010 9 1.59878e+01 1.88169e+00 915 2010 10 1.28716e+01 7.17249e-01 1870 2010 11 8.08585e+00 7.69983e-01 388 2010 12 2.15764e+00 7.17054e-01 142 2011 1 1.94052e+00 1.88581e-01 29 2011 2 2.59120e-01 1.90880e-01 108 2011 3 2.59059e-01 3.63259e-01 255 2011 4 2.01435e+00 8.96541e-01 224 2011 5 6.22590e+00 1.25356e+00 250 2011 6 1.14641e+01 1.21676e+00 157 2011 7 1.99041e+01 1.95207e+00 1545 2011 8 2.09038e+01 9.93599e-01 2957 2011 9 1.75556e+01 1.36897e+00 2000 2011 10 1.17058e+01 1.80318e+00 1161 2011 11 8.57558e+00 1.15874e+00 893 2011 12 4.54121e+00 1.03976e+00 326 2012 1 1.75214e+00 3.10907e-01 84 2012 2 5.58954e-01 6.14944e-01 239 2012 3 3.23088e+00 5.43845e-01 148 2012 4 5.11283e+00 7.81293e-01 989 2012 5 9.66045e+00 1.88865e+00 560 2012 6 1.53625e+01 2.27776e+00 867 2012 7 2.13378e+01 9.90410e-01 3055 2012 8 2.07745e+01 7.63094e-01 2833 2012 9 1.88975e+01 2.48784e+00 2863 2012 10 1.29903e+01 2.12759e+00 1009 2012 11 6.66912e+00 5.46316e-01 329 2012 12 4.15384e+00 8.66393e-01 82 2013 1 1.94789e+00 5.53357e-01 166 2013 2 3.15000e-01 1.70147e-01 3 2013 3 8.29674e-01 5.69773e-01 322 2013 4 2.30603e+00 8.06226e-01 606 2013 5 7.37686e+00 1.35722e+00 223 2013 6 1.21019e+01 2.69187e+00 570 2013 7 1.94415e+01 1.86456e+00 1902 2013 8 1.91487e+01 8.69068e-01 3144 2013 9 1.70961e+01 1.37972e+00 1560 2013 10 1.35713e+01 1.89336e+00 1349 2013 11 6.41846e+00 2.27697e+00 250 2013 12 2.58813e+00 6.64837e-01 166 2014 1 nan nan 0 2014 2 1.96250e-01 4.05239e-02 4 2014 3 2.74138e-01 3.68367e-01 145 2014 4 1.54579e+00 7.78568e-01 493 2014 5 3.64848e+00 9.78434e-01 211 2014 6 1.25846e+01 3.16316e+00 120 2014 7 1.59691e+01 1.44610e+00 1571 2014 8 1.84561e+01 9.68938e-01 2002 2014 9 1.60685e+01 2.44145e+00 1304 2014 10 1.10744e+01 5.99424e-01 819 2014 11 7.15231e+00 1.41325e+00 413 2014 12 2.20770e+00 6.58104e-01 444 2015 1 nan nan 0 2015 2 nan nan 0 2015 3 5.94525e-01 3.49717e-01 358 2015 4 2.25928e+00 1.05312e+00 104 2015 5 7.22199e+00 1.62422e+00 148 2015 6 1.38054e+01 2.10270e+00 630 2015 7 1.81486e+01 1.84225e+00 2112 2015 8 1.91368e+01 1.42173e+00 2338 2015 9 1.78340e+01 8.04814e-01 2031 2015 10 1.26408e+01 1.04293e+00 551 2015 11 9.11481e+00 1.29846e+00 1001 2015 12 6.23654e+00 3.99457e-01 234 2016 1 2.06735e+00 1.22768e+00 17 2016 2 8.56471e-01 9.31928e-01 17 2016 3 2.22041e+00 3.99638e-01 550 2016 4 2.62219e+00 1.01158e+00 414 2016 5 8.02298e+00 2.35365e+00 769 2016 6 1.42202e+01 2.00729e+00 1108 2016 7 1.89834e+01 1.71607e+00 1877 2016 8 2.18506e+01 1.21711e+00 2618 2016 9 1.96860e+01 1.29118e+00 2121 2016 10 1.42712e+01 9.90064e-01 932 2016 11 1.08402e+01 1.26276e+00 1003 2016 12 4.06289e+00 1.88343e+00 510 2017 1 1.37500e+00 2.82705e-01 18 2017 2 9.37234e-01 3.88673e-01 141 2017 3 1.19208e+00 2.62663e-01 197 2017 4 3.17385e+00 1.19699e+00 440 2017 5 7.21989e+00 1.74625e+00 610 2017 6 1.28718e+01 2.00645e+00 795 2017 7 1.82056e+01 1.57983e+00 2049 2017 8 1.93127e+01 8.42704e-01 1659 2017 9 1.83641e+01 9.08089e-01 2231 2017 10 1.61276e+01 2.85309e+00 1293 2017 11 6.66293e+00 1.07710e+00 307 2017 12 4.11831e+00 1.47470e+00 157 2018 1 2.52353e-01 3.53163e-01 17 2018 2 7.58297e-01 1.64469e-01 185 2018 3 6.08201e-01 3.45134e-01 517 2018 4 1.57947e+00 1.04110e+00 538 2018 5 8.34349e+00 2.34553e+00 66 2018 6 1.31181e+01 2.48536e+00 326 2018 7 1.93832e+01 9.46714e-01 1943 2018 8 2.17846e+01 9.15081e-01 2102 2018 9 1.84161e+01 1.59327e+00 1426 2018 10 1.05128e+01 9.43906e-01 795 2018 11 8.21576e+00 1.00702e+00 59 2018 12 2.86080e+00 5.35618e-01 325 2019 1 -3.14000e-01 2.08279e-01 25 2019 2 3.73529e-02 2.86520e-02 17 2019 3 8.46448e-01 4.36227e-01 259 2019 4 2.10486e+00 9.35361e-01 216 2019 5 6.82197e+00 2.67587e+00 137 2019 6 1.29929e+01 3.17914e+00 713 2019 7 1.92069e+01 1.03632e+00 2184 2019 8 1.99555e+01 8.45143e-01 3230 2019 9 1.57235e+01 1.31430e+00 966 2019 10 1.13367e+01 2.05722e+00 1435 2019 11 5.39635e+00 6.20478e-01 484 2019 12 3.50057e+00 1.33874e+00 476 2020 1 1.72333e+00 1.23176e-01 15 2020 2 6.08257e-01 3.83664e-01 350 2020 3 7.20305e-01 7.27489e-01 819 2020 4 3.26064e+00 5.67991e-01 1536 2020 5 6.91798e+00 2.75459e+00 1005 2020 6 1.35738e+01 2.83153e+00 1238 2020 7 2.04260e+01 1.13000e+00 3195 2020 8 2.15683e+01 7.03125e-01 2065 2020 9 1.72831e+01 1.59921e+00 2874 2020 10 1.20431e+01 1.66463e+00 1288 2020 11 8.09437e+00 1.23847e+00 1237 2020 12 4.25647e+00 1.65657e+00 483 2021 1 1.34402e+00 6.91541e-01 230 2021 2 7.56026e-01 3.58654e-01 273 2021 3 1.45591e+00 6.17820e-01 1880 2021 4 3.95719e+00 1.19929e+00 1281 2021 5 7.62939e+00 1.61653e+00 1504 2021 6 1.45663e+01 1.49634e+00 1584 2021 7 1.90371e+01 1.40222e+00 2674 2021 8 2.12781e+01 1.22416e+00 4011 2021 9 1.91132e+01 1.39782e+00 3017 2021 10 1.58690e+01 1.12431e+00 1920 2021 11 1.04525e+01 1.70357e+00 1107 2021 12 5.11826e+00 7.36972e-01 451 2022 1 1.56664e+00 8.18109e-01 122 2022 2 1.69261e-01 7.97530e-02 88 2022 3 5.83295e-01 4.98387e-01 431 2022 4 2.62811e+00 6.19227e-01 669 2022 5 7.49615e+00 2.12116e+00 472 2022 6 1.27138e+01 2.06393e+00 1442 2022 7 1.82078e+01 1.55942e+00 2552 2022 8 2.05102e+01 7.49493e-01 3700 2022 9 1.90776e+01 1.27565e+00 2740 2022 10 1.34978e+01 2.40011e+00 1643 2022 11 9.06798e+00 1.82015e+00 1053 2022 12 4.39107e+00 7.64625e-01 309 2023 1 6.63750e-01 3.03457e-01 8 2023 2 5.62597e-01 3.26037e-01 620 2023 3 1.18948e+00 3.46814e-01 1290 2023 4 3.52537e+00 1.80614e+00 667 2023 5 9.49692e+00 2.67195e+00 1086 2023 6 1.57390e+01 1.74779e+00 2244 2023 7 1.96919e+01 1.13991e+00 3233 2023 8 2.00229e+01 1.21915e+00 3014 2023 9 1.76496e+01 9.46357e-01 2998 2023 10 1.53085e+01 2.51554e+00 1120 2023 11 8.35675e+00 1.11084e+00 1226 2023 12 4.67320e+00 9.19800e-01 189 2024 1 1.62678e+00 1.09536e+00 191 2024 2 8.90875e-01 7.90182e-01 754 2024 3 1.84425e+00 8.44421e-01 890 2024 4 8.71250e-01 1.55659e-01 12