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 1.80878e+01 4.36850e+00 153 2002 8 1.85696e+01 7.15297e+00 512 2002 9 1.69474e+01 6.06847e+00 525 2002 10 1.38156e+01 8.17455e+00 805 2002 11 1.08699e+01 6.17938e+00 967 2002 12 7.07546e+00 3.84638e+00 769 2003 1 3.79995e+00 2.54517e+00 960 2003 2 7.36152e+00 3.98536e+00 638 2003 3 4.74199e-01 6.03009e-01 93 2003 4 1.79105e+01 2.47103e+01 252 2003 5 4.09512e+00 2.36542e+00 122 2003 6 2.27147e+01 2.23344e+01 357 2003 7 8.39349e+00 1.31265e+00 64 2003 8 5.40579e+00 3.88734e+00 191 2003 9 2.17987e+01 1.71546e+01 539 2003 10 8.52167e+00 7.60860e+00 1032 2003 11 1.14766e+01 7.22063e+00 983 2003 12 4.58450e+00 4.20906e+00 968 2004 1 6.78540e+00 6.90976e+00 726 2004 2 1.03325e+01 4.46815e+00 234 2004 3 3.33357e+00 3.53762e+00 677 2004 4 6.96295e+00 4.77338e+00 571 2004 5 7.37576e+00 4.05266e+00 551 2004 6 1.14844e+01 7.19647e+00 384 2004 7 5.50572e+00 4.42637e+00 342 2004 8 1.32879e+01 9.06918e+00 354 2004 9 1.03007e+01 8.92954e+00 324 2004 10 1.82337e+00 3.11374e+00 247 2004 11 3.13102e+00 7.69033e+00 474 2004 12 9.65851e-01 1.86469e+00 499 2005 1 5.43448e+00 8.26764e+00 749 2005 2 2.74673e+00 2.48160e+00 419 2005 3 2.81705e+00 2.20545e+00 720 2005 4 1.13960e+01 1.26629e+01 342 2005 5 1.27580e+01 1.34009e+01 468 2005 6 1.54576e+01 1.45342e+01 363 2005 7 1.00700e+01 1.00067e+01 357 2005 8 4.90293e+00 4.99239e+00 128 2005 9 1.10758e+01 7.81552e+00 386 2005 10 1.07356e+01 8.45980e+00 1009 2005 11 8.55776e+00 5.49835e+00 1177 2005 12 9.05876e+00 4.42413e+00 1024 2006 1 6.99103e+00 5.89599e+00 1085 2006 2 4.21429e+00 3.36860e+00 802 2006 3 3.72396e+00 8.09428e+00 1008 2006 4 1.67574e+00 2.26141e+00 441 2006 5 1.40298e+01 8.31518e+00 563 2006 6 1.03747e+01 4.87795e+00 320 2006 7 1.19040e+01 8.76698e+00 513 2006 8 9.17833e+00 8.59772e+00 261 2006 9 1.19864e+01 7.52537e+00 639 2006 10 1.32784e+01 6.45248e+00 952 2006 11 1.32038e+01 5.98672e+00 896 2006 12 1.47106e+01 8.24108e+00 576 2007 1 1.93055e+01 6.11268e+00 512 2007 2 1.54979e+01 5.79987e+00 924 2007 3 1.70052e+01 4.63945e+00 1086 2007 4 1.51908e+01 5.21698e+00 786 2007 5 1.71166e+01 3.66783e+00 315 2007 6 1.19080e+01 6.10283e+00 379 2007 7 1.02252e+01 4.87432e+00 448 2007 8 1.13451e+01 3.52396e+00 494 2007 9 1.49200e+01 6.32103e+00 561 2007 10 2.03181e+01 4.59938e+00 640 2007 11 2.17530e+01 4.41545e+00 1150 2007 12 2.08480e+01 8.51159e+00 648 2008 1 2.16758e+01 6.52706e+00 960 2008 2 2.27926e+01 5.50724e+00 1170 2008 3 1.25651e+01 7.84886e+00 976 2008 4 3.50672e+00 3.48753e+00 377 2008 5 5.31355e+00 5.43658e+00 502 2008 6 1.01091e+01 1.43748e+01 433 2008 7 1.37094e+01 1.04597e+01 316 2008 8 6.47668e+00 1.73803e+00 192 2008 9 1.04375e+01 1.01299e+01 638 2008 10 7.44442e+00 5.50284e+00 996 2008 11 5.99242e+00 2.94181e+00 870 2008 12 4.98110e+00 3.79476e+00 829 2009 1 6.10957e+00 4.03107e+00 640 2009 2 6.80520e+00 3.83856e+00 1024 2009 3 1.41552e+01 6.02556e+00 888 2009 4 6.80218e+00 5.35579e+00 718 2009 5 6.00957e+00 4.85406e+00 105 2009 6 1.43140e+01 1.28098e+01 495 2009 7 1.32954e+01 1.46730e+01 295 2009 8 9.10388e+00 5.48369e+00 496 2009 9 1.71528e+01 1.35866e+01 562 2009 10 1.03046e+01 5.60977e+00 836 2009 11 9.17825e+00 4.39248e+00 604 2009 12 9.86824e+00 5.73087e+00 251 2010 1 2.27100e+00 1.72326e+00 942 2010 2 2.42270e+00 6.62241e+00 746 2010 3 7.76370e-01 1.30235e+00 822 2010 4 1.52493e+00 2.75217e+00 367 2010 5 1.50050e+01 1.93016e+01 518 2010 6 1.15233e+01 7.30984e+00 563 2010 7 1.15954e+01 1.04052e+01 382 2010 8 1.66875e+01 1.36539e+01 295 2010 9 9.18394e+00 6.46661e+00 759 2010 10 6.42864e+00 5.43862e+00 1616 2010 11 1.22307e+01 8.45706e+00 1243 2010 12 1.27491e+01 5.73263e+00 1088 2011 1 1.51358e+01 4.20058e+00 768 2011 2 1.39304e+01 4.95956e+00 576 2011 3 1.35873e+01 2.93032e+00 951 2011 4 6.46013e+00 5.15378e+00 828 2011 5 9.80750e+00 6.46979e+00 597 2011 6 6.68713e+00 4.46388e+00 314 2011 7 8.67206e+00 4.20624e+00 392 2011 8 1.43742e+01 6.46063e+00 715 2011 9 1.64577e+01 8.24322e+00 783 2011 10 1.62370e+01 6.07819e+00 1063 2011 11 2.23570e+01 4.47472e+00 1062 2011 12 2.52095e+01 3.52326e+00 993 2012 1 1.87191e+01 7.59428e+00 1152 2012 2 2.48306e+01 5.63654e+00 318 2012 3 1.80009e+01 5.73016e+00 894 2012 4 1.41335e+01 5.45976e+00 877 2012 5 1.59318e+01 5.60267e+00 577 2012 6 7.64085e+00 5.51297e+00 302 2012 7 2.17176e+00 3.61655e+00 133 2012 8 3.62620e+00 3.22581e+00 105 2012 9 4.28713e+00 6.55225e+00 657 2012 10 9.73672e+00 1.59535e+01 663 2012 11 4.50399e+00 4.96133e+00 1096 2012 12 4.12456e+00 2.30644e+00 562 2013 1 1.20850e+01 7.58700e+00 704 2013 2 1.23502e+01 3.79020e+00 640 2013 3 6.84642e+00 6.42830e+00 672 2013 4 8.49541e+00 9.34865e+00 273 2013 5 4.52078e+00 4.22033e+00 466 2013 6 1.77005e+01 1.56171e+01 393 2013 7 8.27308e+00 1.51817e+00 128 2013 8 2.61507e+01 2.16925e+01 216 2013 9 1.02694e+01 1.57785e+01 747 2013 10 1.44660e+01 1.50249e+01 697 2013 11 8.07870e+00 6.03802e+00 497 2013 12 1.68051e+01 7.52386e+00 891 2014 1 7.23768e+00 3.77172e+00 659 2014 2 4.32210e+00 2.86028e+00 644 2014 3 2.80779e+00 4.63050e+00 785 2014 4 3.52378e-01 1.10400e+00 237 2014 5 4.32176e+01 8.12840e-01 9 2014 6 1.11616e+01 8.71838e+00 192 2014 7 9.46143e+00 1.10249e+01 487 2014 8 1.25642e+01 4.68973e+00 443 2014 9 2.26827e+01 1.05807e+01 386 2014 10 8.59020e+00 6.70435e+00 1342 2014 11 1.01378e+01 5.21338e+00 1024 2014 12 1.48546e+01 7.67838e+00 906 2015 1 1.51888e+01 9.01488e+00 815 2015 2 6.25794e+00 6.47342e+00 852 2015 3 3.30998e+00 4.14809e+00 369 2015 4 1.27873e+00 1.21751e+00 136 2015 5 8.74426e+00 1.30498e+01 693 2015 6 1.05987e+01 1.02555e+01 627 2015 7 1.58314e+01 1.65437e+01 157 2015 8 7.30969e+00 2.62405e+00 448 2015 9 8.57624e+00 4.93060e+00 376 2015 10 6.50578e+00 3.49973e+00 804 2015 11 8.14473e+00 8.16707e+00 736 2015 12 1.08169e+01 5.19645e+00 474 2016 1 1.32722e+01 6.06686e+00 657 2016 2 5.68909e+00 4.85718e+00 1280 2016 3 3.66199e+00 2.46389e+00 701 2016 4 5.82176e+00 6.55083e+00 511 2016 5 4.24730e+00 5.74835e+00 543 2016 6 7.20047e+00 7.47130e+00 490 2016 7 8.03851e+00 6.99917e+00 777 2016 8 8.07007e+00 7.51735e+00 687 2016 9 1.23032e+01 1.54139e+01 891 2016 10 7.13174e+00 5.28614e+00 729 2016 11 1.39873e+01 8.18815e+00 950 2016 12 1.54968e+01 4.59496e+00 715 2017 1 1.68478e+01 7.08945e+00 703 2017 2 1.15405e+01 4.34757e+00 1144 2017 3 1.18906e+01 4.69272e+00 922 2017 4 9.71188e+00 5.38455e+00 693 2017 5 1.06499e+01 4.96234e+00 423 2017 6 1.57409e+01 1.48173e+01 386 2017 7 6.83056e+00 4.71738e+00 185 2017 8 1.29136e+01 1.38333e+01 448 2017 9 8.54397e+00 6.84006e+00 733 2017 10 2.06554e+00 2.41694e+00 531 2017 11 1.22495e+01 9.37785e+00 1043 2017 12 1.29816e+01 5.55535e+00 768 2018 1 1.15415e+01 4.38422e+00 864 2018 2 8.17820e+00 6.08055e+00 560 2018 3 8.76404e+00 9.28958e+00 892 2018 4 6.21407e+00 6.40975e+00 704 2018 5 6.56288e+00 5.49387e+00 442 2018 6 6.72512e+00 7.23119e+00 383 2018 7 3.04142e+01 1.45528e+01 354 2018 8 8.42289e+00 1.39229e+01 513 2018 9 1.81371e+01 1.59757e+01 896 2018 10 1.23880e+01 1.08205e+01 1036 2018 11 3.40504e+00 1.34503e+00 256 2018 12 2.78682e+00 2.67196e+00 578 2019 1 4.66489e+00 1.11054e+01 759 2019 2 1.46766e+00 2.42783e+00 90 2019 3 2.26304e+00 3.11829e+00 643 2019 4 1.30241e+00 1.25123e+00 430 2019 5 7.53211e+00 5.06065e+00 761 2019 6 1.42787e+01 1.29706e+01 384 2019 7 1.08056e+01 6.72450e+00 365 2019 8 1.34119e+01 1.55973e+01 844 2019 9 5.13471e+00 6.77181e+00 757 2019 10 1.11155e+01 6.25847e+00 774 2019 11 1.09765e+01 7.52420e+00 680 2019 12 1.06245e+01 5.45199e+00 471 2020 1 9.23630e+00 3.30001e+00 576 2020 2 1.25172e+01 4.99704e+00 639 2020 3 9.30241e+00 5.39531e+00 671 2020 4 5.68624e+00 2.98022e+00 500 2020 5 6.56646e+00 7.53175e+00 683 2020 6 2.23631e+00 3.14418e+00 441 2020 7 1.96592e+01 2.12317e+01 249 2020 8 5.57079e+00 2.41491e+00 129 2020 9 3.57622e+00 7.81705e+00 220 2020 10 8.06197e+00 1.37904e+01 460 2020 11 6.91175e+00 9.81361e+00 795 2020 12 4.00455e+00 3.80863e+00 512 2021 1 2.92850e+00 3.13915e+00 620 2021 2 1.50850e+00 1.36303e+00 571 2021 3 1.62731e+00 2.65367e+00 528 2021 4 1.29343e-02 2.27126e-02 81 2021 5 2.83386e+00 4.01825e+00 597 2021 6 1.99437e+01 2.00605e+01 256 2021 7 2.18939e+01 6.45870e+00 67 2021 8 2.26618e+00 9.52598e+00 74 2021 9 7.40966e+00 1.21047e+01 600 2021 10 6.04367e+00 6.06609e+00 584 2021 11 2.21919e+00 3.63535e+00 650 2021 12 8.10812e+00 1.26803e+01 514 2022 1 2.69129e+00 2.45450e+00 907 2022 2 3.43462e+00 3.30010e+00 768 2022 3 4.47374e+00 4.40497e+00 666 2022 4 5.05308e-01 3.60258e-01 65 2022 5 5.92940e+00 7.75510e+00 394 2022 6 1.06759e+01 6.99092e+00 481 2022 7 1.88079e+01 1.50806e+01 192 2022 8 1.23129e+01 1.11610e+01 508 2022 9 1.29392e+01 6.00627e+00 345 2022 10 3.49381e+00 3.94208e+00 1228 2022 11 9.15896e+00 6.96969e+00 447 2022 12 1.20436e+01 5.29242e+00 1101 2023 1 1.33285e+01 5.58987e+00 917 2023 2 1.39094e+01 4.29584e+00 576 2023 3 1.05792e+01 5.64336e+00 832 2023 4 1.16063e+01 1.10613e+01 346 2023 5 1.18159e+01 8.64276e+00 441 2023 6 1.76961e+01 4.58823e+00 387 2023 7 1.73353e+01 1.18182e+01 206 2023 8 1.88326e+01 1.35067e+01 467 2023 9 9.61429e+00 1.16466e+01 532 2023 10 7.28242e+00 6.77838e+00 704 2023 11 7.26923e+00 8.11389e+00 655 2023 12 3.11244e+00 2.87966e+00 320 2024 1 6.00078e-01 8.20453e-01 448 2024 2 5.55429e+00 6.21811e+00 384 2024 3 7.88374e+00 1.51184e+01 379 2024 4 nan nan 0