YEAR MONTH MEAN STDEV COUNT 2002 1 nan nan 0 2002 2 nan nan 0 2002 3 nan nan 0 2002 4 nan nan 0 2002 5 nan nan 0 2002 6 nan nan 0 2002 7 1.55641e+00 7.69339e-01 317 2002 8 2.39798e+00 6.61745e-01 512 2002 9 2.20728e+00 5.94274e-01 385 2002 10 2.18035e+00 1.24360e+00 670 2002 11 2.56051e+00 1.16964e+00 671 2002 12 2.43235e+00 8.70199e-01 588 2003 1 3.00799e+00 1.53518e+00 896 2003 2 3.59496e+00 1.18183e+00 496 2003 3 4.55214e+00 1.37905e+00 66 2003 4 5.99670e+00 3.67744e+00 70 2003 5 1.15801e+01 9.48967e+00 249 2003 6 5.32230e+00 4.37425e+00 235 2003 7 5.26253e+00 5.21842e+00 251 2003 8 4.36254e+00 2.88742e+00 406 2003 9 6.21576e+00 4.88637e+00 436 2003 10 6.75944e+00 5.41465e+00 936 2003 11 6.79660e+00 4.51002e+00 1079 2003 12 2.31626e+00 1.00977e+00 749 2004 1 3.15614e+00 2.85849e+00 877 2004 2 3.04577e+00 2.91707e+00 383 2004 3 6.79511e+00 5.23381e+00 742 2004 4 2.17251e+00 6.14497e-01 320 2004 5 1.48233e+00 9.60178e-01 695 2004 6 1.97208e+00 8.61663e-01 483 2004 7 3.63044e+00 2.83589e+00 444 2004 8 2.27348e+00 8.50059e-01 513 2004 9 3.03845e+00 8.08354e-01 164 2004 10 1.00057e+01 2.75417e+00 128 2004 11 2.31360e+01 1.12078e+01 200 2004 12 9.38581e+00 4.84969e+00 372 2005 1 7.35995e+00 5.25082e+00 783 2005 2 9.54993e+00 8.30683e+00 556 2005 3 5.83153e+00 2.64148e+00 447 2005 4 6.85080e+00 4.38797e+00 280 2005 5 4.13796e+00 2.39068e+00 79 2005 6 6.67735e+00 3.12703e+00 315 2005 7 4.37484e+00 6.22526e+00 316 2005 8 2.35740e+01 1.02777e+01 105 2005 9 9.22883e+00 1.08498e+01 312 2005 10 6.30558e+00 4.82899e+00 914 2005 11 4.43011e+00 3.86206e+00 999 2005 12 3.22916e+00 1.44682e+00 1024 2006 1 1.01353e+01 1.27458e+01 558 2006 2 5.49870e+00 2.99391e+00 755 2006 3 7.15495e+00 4.29192e+00 1138 2006 4 4.30194e+00 2.02425e+00 230 2006 5 1.75234e+00 6.69495e-01 493 2006 6 2.29080e+00 7.03346e-01 338 2006 7 2.88769e+00 9.88256e-01 294 2006 8 2.84013e+00 1.43532e+00 502 2006 9 2.57161e+00 1.30969e+00 881 2006 10 2.41872e+00 9.43795e-01 957 2006 11 1.78777e+00 8.25985e-01 762 2006 12 1.61627e+00 1.00668e+00 571 2007 1 1.14891e+00 6.01667e-01 490 2007 2 1.12188e+00 6.00492e-01 723 2007 3 1.59018e+00 8.25849e-01 1024 2007 4 1.25717e+00 8.14972e-01 525 2007 5 1.17339e+00 4.25160e-01 296 2007 6 1.40355e+00 4.42687e-01 320 2007 7 2.73407e+00 3.41061e+00 492 2007 8 2.22407e+00 7.05300e-01 541 2007 9 2.59987e+00 2.29084e+00 544 2007 10 2.65357e+00 2.27998e+00 709 2007 11 3.01131e+00 2.57635e+00 1030 2007 12 3.08358e+00 1.25387e+00 828 2008 1 1.76464e+00 8.61610e-01 768 2008 2 1.71956e+00 6.17518e-01 840 2008 3 1.26560e+01 9.26484e+00 622 2008 4 6.98786e+00 6.81372e+00 672 2008 5 4.65832e+00 1.89819e+00 512 2008 6 4.32730e+00 2.03173e+00 524 2008 7 3.76060e+00 2.31588e+00 405 2008 8 5.63444e+00 3.14847e+00 326 2008 9 5.38681e+00 3.53446e+00 440 2008 10 7.50110e+00 5.61303e+00 985 2008 11 3.14119e+00 2.70649e+00 930 2008 12 4.87857e+00 4.82998e+00 1024 2009 1 3.15826e+00 1.12264e+00 576 2009 2 2.31260e+00 6.34610e-01 907 2009 3 2.12566e+00 1.00766e+00 905 2009 4 2.11786e+00 1.43185e+00 331 2009 5 5.75398e+00 2.36301e+00 207 2009 6 3.00044e+00 2.02352e+00 469 2009 7 6.73733e+00 3.94735e+00 103 2009 8 4.88384e+00 2.61127e+00 539 2009 9 3.35395e+00 3.49172e+00 680 2009 10 3.59381e+00 3.31885e+00 790 2009 11 1.89563e+00 1.48398e+00 826 2009 12 2.45064e+00 7.28149e-01 192 2010 1 3.10017e+00 2.43014e+00 947 2010 2 8.61516e+00 7.79778e+00 689 2010 3 7.07566e+00 5.30492e+00 880 2010 4 7.10900e+00 2.89205e+00 201 2010 5 4.16777e+00 2.11173e+00 497 2010 6 2.79665e+00 1.13503e+00 594 2010 7 3.24645e+00 2.23908e+00 440 2010 8 3.69327e+00 1.31556e+00 257 2010 9 4.28337e+00 1.72828e+00 755 2010 10 2.20740e+00 1.17512e+00 1536 2010 11 2.43767e+00 1.24475e+00 1152 2010 12 1.45177e+00 9.46272e-01 1024 2011 1 1.14067e+00 4.68831e-01 704 2011 2 9.01243e-01 4.87556e-01 704 2011 3 8.10430e-01 3.63460e-01 872 2011 4 1.09702e+00 4.58022e-01 938 2011 5 1.21287e+00 6.37894e-01 701 2011 6 1.30180e+00 4.81225e-01 256 2011 7 1.79121e+00 5.64256e-01 512 2011 8 1.89607e+00 5.79625e-01 305 2011 9 2.04804e+00 8.82327e-01 707 2011 10 1.70983e+00 7.59720e-01 898 2011 11 1.05914e+00 5.15210e-01 985 2011 12 1.11808e+00 4.63838e-01 921 2012 1 8.74512e-01 3.28769e-01 896 2012 2 7.53952e-01 2.50453e-01 297 2012 3 8.32852e-01 5.37473e-01 891 2012 4 1.35655e+00 5.70968e-01 911 2012 5 1.88983e+00 1.56529e+00 441 2012 6 2.19720e+00 8.88691e-01 192 2012 7 9.04444e+00 1.16783e+01 249 2012 8 1.48804e+01 7.32466e+00 253 2012 9 7.12941e+00 8.48807e+00 178 2012 10 1.04512e+01 9.06147e+00 526 2012 11 4.46944e+00 2.37829e+00 832 2012 12 6.07182e+00 4.57445e+00 753 2013 1 2.27296e+00 1.21876e+00 704 2013 2 1.53888e+00 4.41205e-01 448 2013 3 3.80174e+00 4.67906e+00 755 2013 4 7.97600e+00 6.59960e+00 433 2013 5 7.07060e+00 5.90935e+00 457 2013 6 4.02945e+00 2.19645e+00 478 2013 7 1.47193e+01 5.75892e+00 62 2013 8 8.85238e+00 3.59194e+00 217 2013 9 1.44696e+01 9.18995e+00 313 2013 10 7.14556e+00 4.88884e+00 783 2013 11 6.70571e+00 3.23099e+00 320 2013 12 3.56326e+00 1.59354e+00 768 2014 1 4.17998e+00 1.82368e+00 512 2014 2 8.96881e+00 7.60040e+00 656 2014 3 1.08023e+01 9.33235e+00 506 2014 4 1.01017e+01 5.76003e+00 179 2014 5 1.20323e+01 1.03400e+01 93 2014 6 1.49861e+01 1.28119e+01 305 2014 7 1.01821e+01 6.99787e+00 443 2014 8 3.85264e+00 1.60036e+00 342 2014 9 4.78416e+00 1.53417e+00 222 2014 10 1.17987e+01 9.14367e+00 1151 2014 11 1.99136e+00 7.93882e-01 896 2014 12 2.80011e+00 1.67321e+00 779 2015 1 5.03355e+00 3.23811e+00 681 2015 2 6.47710e+00 6.68455e+00 724 2015 3 1.69944e+01 1.21601e+01 401 2015 4 5.18151e+00 8.11883e+00 181 2015 5 4.67920e+00 5.33963e+00 635 2015 6 1.63183e+00 8.00761e-01 266 2015 7 2.98110e+00 1.26068e+00 135 2015 8 7.34468e+00 7.40203e+00 256 2015 9 1.10895e+01 5.93536e+00 132 2015 10 6.82323e+00 6.19813e+00 825 2015 11 7.16880e+00 6.30610e+00 847 2015 12 2.63218e+00 1.25156e+00 456 2016 1 2.95523e+00 1.24261e+00 670 2016 2 4.81935e+00 2.91412e+00 1146 2016 3 4.35664e+00 1.84763e+00 648 2016 4 5.86658e+00 8.64335e+00 375 2016 5 3.67102e+00 1.48606e+00 643 2016 6 3.29745e+00 1.10033e+00 694 2016 7 3.38964e+00 3.20912e+00 820 2016 8 3.31714e+00 3.10499e+00 676 2016 9 7.58864e+00 5.09593e+00 603 2016 10 3.19172e+00 1.57380e+00 1003 2016 11 2.86935e+00 1.19915e+00 960 2016 12 1.76051e+00 7.95846e-01 890 2017 1 2.07105e+00 8.29035e-01 624 2017 2 5.54589e+00 3.54397e+00 757 2017 3 3.00624e+00 2.37888e+00 1024 2017 4 1.40490e+00 4.93612e-01 768 2017 5 1.70159e+00 5.69798e-01 518 2017 6 1.91290e+00 5.61280e-01 277 2017 7 3.33596e+00 1.65070e+00 73 2017 8 5.89410e+00 4.25127e+00 693 2017 9 4.46820e+00 2.66677e+00 329 2017 10 8.58689e+00 7.29855e+00 358 2017 11 9.75014e+00 8.59116e+00 972 2017 12 4.08226e+00 2.45749e+00 576 2018 1 2.22451e+00 1.28675e+00 704 2018 2 1.31197e+00 1.25108e+00 620 2018 3 1.57978e+00 9.36064e-01 942 2018 4 2.96358e+00 1.83020e+00 640 2018 5 1.48393e+00 7.27746e-01 402 2018 6 5.79797e+00 3.64202e+00 193 2018 7 5.20697e+00 7.13195e+00 124 2018 8 6.01535e+00 5.16860e+00 483 2018 9 5.54360e+00 4.77945e+00 1110 2018 10 4.89438e+00 5.39433e+00 1149 2018 11 3.25482e+00 1.46181e+00 431 2018 12 8.67401e+00 8.74029e+00 512 2019 1 1.42921e+01 9.38859e+00 373 2019 2 8.96823e+00 6.33866e+00 243 2019 3 9.54184e+00 8.17455e+00 802 2019 4 7.80481e+00 8.70835e+00 488 2019 5 2.88175e+00 1.28786e+00 703 2019 6 3.31491e+00 1.81593e+00 260 2019 7 3.07104e+00 2.18023e+00 268 2019 8 5.76965e+00 2.95202e+00 404 2019 9 5.02601e+00 5.35130e+00 896 2019 10 3.84419e+00 1.75901e+00 756 2019 11 2.72081e+00 1.33073e+00 704 2019 12 2.48981e+00 1.58769e+00 466 2020 1 2.18566e+00 1.51368e+00 640 2020 2 2.05909e+00 1.00218e+00 580 2020 3 5.39765e+00 9.12818e+00 605 2020 4 7.31716e+00 5.46359e+00 428 2020 5 4.72287e+00 2.09526e+00 443 2020 6 7.50886e+00 9.10212e+00 303 2020 7 3.24282e+00 1.42214e+00 356 2020 8 1.12233e+01 8.56521e+00 197 2020 9 1.03250e+01 9.41780e+00 354 2020 10 5.66331e+00 3.59278e+00 787 2020 11 7.03237e+00 4.63948e+00 874 2020 12 3.26347e+00 1.15681e+00 918 2021 1 4.52897e+00 5.33850e+00 529 2021 2 8.76306e+00 6.91701e+00 507 2021 3 1.00713e+01 6.23470e+00 171 2021 4 7.75858e+00 8.08895e+00 307 2021 5 4.44493e+00 2.04476e+00 764 2021 6 2.23822e+00 1.11210e+00 192 2021 7 2.37599e+00 1.37917e+00 192 2021 8 3.72319e+00 1.22213e+00 320 2021 9 7.00487e+00 4.77150e+00 328 2021 10 1.28323e+01 1.00050e+01 329 2021 11 4.34189e+00 2.20973e+00 768 2021 12 3.96150e+00 1.76262e+00 768 2022 1 4.71823e+00 2.98846e+00 848 2022 2 2.86486e+00 1.84832e+00 882 2022 3 4.07806e+00 2.90366e+00 899 2022 4 5.56612e+00 2.21548e+00 85 2022 5 5.42887e+00 3.58577e+00 425 2022 6 6.37163e+00 6.16360e+00 382 2022 7 2.21966e+00 2.64075e+00 547 2022 8 4.08360e+00 2.96419e+00 523 2022 9 1.35077e+01 9.76079e+00 214 2022 10 7.29725e+00 8.11932e+00 1145 2022 11 5.68643e+00 6.82754e+00 457 2022 12 2.94689e+00 2.24381e+00 789 2023 1 1.74653e+00 6.84063e-01 850 2023 2 2.55163e+00 1.32480e+00 710 2023 3 4.76982e+00 2.77342e+00 609 2023 4 3.96020e+00 1.36362e+00 384 2023 5 3.87592e+00 2.17180e+00 384 2023 6 3.17242e+00 1.13111e+00 383 2023 7 8.07468e+00 7.51903e+00 467 2023 8 6.91117e+00 6.72712e+00 435 2023 9 1.08784e+01 1.33733e+01 409 2023 10 8.36851e+00 7.82321e+00 630 2023 11 3.44397e+00 1.61260e+00 688 2023 12 5.15659e+00 7.31302e+00 145 2024 1 2.11054e+01 1.20262e+01 226 2024 2 1.49641e+01 1.01137e+01 640 2024 3 9.15632e+00 7.74367e+00 509 2024 4 nan nan 0