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 2.34156e+01 6.89943e+00 222 2002 8 2.93164e+01 1.10980e+01 226 2002 9 2.22695e+01 1.05423e+01 170 2002 10 1.97573e+01 9.66975e+00 685 2002 11 1.50882e+01 7.57028e+00 723 2002 12 1.41600e+01 8.88302e+00 639 2003 1 7.60997e+00 3.73988e+00 946 2003 2 1.67784e+01 6.96531e+00 512 2003 3 5.73792e-01 6.89343e-01 179 2003 4 1.24877e-01 5.00791e-01 190 2003 5 3.40948e+00 2.09447e+00 90 2003 6 4.22490e+01 3.51554e+01 122 2003 7 7.33584e+00 6.16355e+00 127 2003 8 4.57615e+00 1.08725e+01 223 2003 9 1.88040e+01 8.67769e+00 315 2003 10 1.23982e+01 9.55314e+00 733 2003 11 1.80860e+01 6.97686e+00 962 2003 12 1.39231e+01 6.52744e+00 717 2004 1 1.58544e+01 6.13744e+00 708 2004 2 1.67926e+01 7.37322e+00 262 2004 3 1.09898e+01 7.02961e+00 550 2004 4 1.56441e+01 1.00032e+01 355 2004 5 2.35645e+01 5.00924e+00 476 2004 6 3.06803e+01 7.99318e+00 294 2004 7 2.32865e+01 8.75598e+00 344 2004 8 2.35520e+01 6.60500e+00 341 2004 9 9.24983e+00 7.32436e+00 157 2004 10 9.01657e+00 7.00551e+00 102 2004 11 2.36440e+00 5.80376e+00 184 2004 12 3.82554e+00 3.47828e+00 279 2005 1 4.68543e+00 3.90627e+00 818 2005 2 6.99755e+00 5.38224e+00 607 2005 3 9.12579e+00 5.49713e+00 371 2005 4 1.33313e+01 1.85996e+01 359 2005 5 1.04616e+01 7.25669e+00 251 2005 6 1.06766e+01 8.22199e+00 313 2005 7 2.04122e+00 2.07324e+00 303 2005 8 4.39720e+00 3.77860e+00 189 2005 9 9.97941e+00 3.42957e+00 292 2005 10 1.54148e+01 6.88183e+00 703 2005 11 1.72264e+01 7.34251e+00 786 2005 12 1.36942e+01 7.73895e+00 862 2006 1 4.90149e+00 3.15106e+00 561 2006 2 3.24504e+00 2.57404e+00 407 2006 3 3.59300e+00 4.02435e+00 838 2006 4 1.89766e+01 1.08355e+01 337 2006 5 1.88823e+01 9.19142e+00 348 2006 6 2.26315e+01 8.31664e+00 332 2006 7 1.48763e+01 6.12678e+00 135 2006 8 2.63310e+01 9.32746e+00 128 2006 9 1.98700e+01 5.22491e+00 597 2006 10 2.13144e+01 9.90745e+00 698 2006 11 2.08705e+01 1.02596e+01 769 2006 12 3.51825e+01 7.52986e+00 389 2007 1 2.61649e+01 1.22525e+01 447 2007 2 2.64197e+01 1.46819e+01 671 2007 3 3.06367e+01 1.04675e+01 851 2007 4 2.41843e+01 1.24416e+01 533 2007 5 4.11081e+01 7.21603e+00 99 2007 6 3.45410e+01 5.99475e+00 211 2007 7 2.72400e+01 8.94516e+00 497 2007 8 2.55835e+01 3.52062e+00 385 2007 9 2.38130e+01 5.47946e+00 296 2007 10 3.34088e+01 9.66781e+00 507 2007 11 3.20736e+01 1.04792e+01 1015 2007 12 3.31068e+01 1.47446e+01 726 2008 1 2.55102e+01 1.55242e+01 536 2008 2 2.18763e+01 1.05607e+01 807 2008 3 1.48318e+01 1.12138e+01 580 2008 4 1.00986e+01 1.04656e+01 505 2008 5 1.00286e+01 7.19852e+00 390 2008 6 2.55636e+01 5.32334e+00 192 2008 7 2.29341e+01 1.07317e+01 327 2008 8 1.73781e+01 7.29660e+00 235 2008 9 1.22341e+01 1.39113e+01 291 2008 10 1.47746e+01 6.82330e+00 813 2008 11 2.47492e+01 1.11530e+01 971 2008 12 1.21052e+01 8.35617e+00 719 2009 1 1.29807e+01 9.33350e+00 637 2009 2 1.78634e+01 1.01749e+01 898 2009 3 2.55914e+01 1.27425e+01 745 2009 4 1.27937e+01 8.20880e+00 583 2009 5 6.37589e+00 4.38092e+00 127 2009 6 1.99326e+01 1.86681e+00 66 2009 7 2.80365e+01 8.42787e+00 148 2009 8 1.79935e+01 1.11227e+01 509 2009 9 1.48287e+01 9.87490e+00 463 2009 10 2.29619e+01 5.37202e+00 702 2009 11 2.45950e+01 1.33277e+01 562 2009 12 1.64943e+01 9.66418e+00 192 2010 1 1.21494e+01 6.00193e+00 833 2010 2 2.35434e+00 2.42265e+00 567 2010 3 1.29702e+00 1.74636e+00 803 2010 4 6.59463e+00 6.91336e+00 353 2010 5 1.02815e+01 5.87360e+00 351 2010 6 1.84105e+01 7.85724e+00 507 2010 7 1.45884e+01 2.90662e+00 155 2010 8 1.76008e+01 8.24682e+00 116 2010 9 2.40246e+01 1.39006e+01 393 2010 10 2.22890e+01 1.03884e+01 1379 2010 11 2.63447e+01 1.03088e+01 895 2010 12 1.87312e+01 1.04203e+01 743 2011 1 2.18836e+01 1.41630e+01 735 2011 2 2.55289e+01 1.01093e+01 728 2011 3 2.72986e+01 1.23268e+01 767 2011 4 2.47368e+01 9.30467e+00 667 2011 5 3.09642e+01 1.63263e+01 606 2011 6 2.70062e+01 7.45802e+00 219 2011 7 2.79846e+01 3.12689e+00 253 2011 8 3.00098e+01 1.09248e+01 503 2011 9 2.82356e+01 9.18127e+00 600 2011 10 2.48902e+01 1.19080e+01 928 2011 11 2.84005e+01 1.41039e+01 977 2011 12 2.76883e+01 1.32682e+01 889 2012 1 2.57007e+01 1.37264e+01 967 2012 2 2.53646e+01 1.88044e+01 192 2012 3 2.74590e+01 1.32391e+01 736 2012 4 2.86673e+01 7.62217e+00 625 2012 5 3.35921e+01 7.77977e+00 384 2012 6 2.01447e+01 1.89903e+00 64 2012 7 4.99721e+00 3.18942e+00 94 2012 8 2.38589e+00 1.83841e+00 208 2012 9 4.94844e+00 3.13737e+00 316 2012 10 4.19506e+00 2.78915e+00 465 2012 11 1.21031e+01 7.50327e+00 746 2012 12 1.27001e+01 9.23710e+00 423 2013 1 2.10394e+01 1.38739e+01 539 2013 2 1.26218e+01 7.02964e+00 498 2013 3 1.82072e+01 9.58121e+00 620 2013 4 1.12115e+01 1.01119e+01 417 2013 5 1.46219e+01 6.25383e+00 359 2013 6 1.27050e+01 1.76760e+01 358 2013 7 1.44538e+00 9.07662e-01 60 2013 8 1.83761e+00 2.67010e+00 163 2013 9 4.70152e+00 7.35047e+00 536 2013 10 1.12369e+01 9.33433e+00 644 2013 11 1.53229e+01 8.84191e+00 411 2013 12 1.84549e+01 9.83395e+00 581 2014 1 1.16002e+01 8.17927e+00 448 2014 2 1.47255e+01 9.97487e+00 557 2014 3 3.04537e+00 2.75514e+00 539 2014 4 3.31718e+00 3.39288e+00 261 2014 5 3.86934e-01 9.83148e-01 99 2014 6 6.85959e+00 8.97391e+00 300 2014 7 1.06774e+01 5.27076e+00 532 2014 8 1.92635e+01 8.94559e+00 275 2014 9 2.64472e+01 1.20705e+01 243 2014 10 1.62916e+01 9.23943e+00 1282 2014 11 1.89955e+01 1.11294e+01 893 2014 12 3.72283e+01 1.39960e+01 433 2015 1 2.60342e+01 1.52918e+01 684 2015 2 1.60554e+01 7.07157e+00 740 2015 3 6.91516e+00 5.42918e+00 409 2015 4 1.02458e+01 6.80527e+00 186 2015 5 1.67577e+01 6.04164e+00 333 2015 6 2.68737e+01 4.96549e+00 149 2015 7 2.61904e+01 1.05139e+01 143 2015 8 1.03020e+01 7.89719e+00 320 2015 9 1.08955e+01 6.01561e+00 221 2015 10 1.71312e+01 7.87603e+00 532 2015 11 1.25896e+01 9.98248e+00 545 2015 12 2.26034e+01 1.43028e+01 562 2016 1 9.70013e+00 5.00289e+00 409 2016 2 1.14953e+01 8.33751e+00 1024 2016 3 1.13718e+01 8.42090e+00 772 2016 4 1.83199e+01 1.25545e+01 384 2016 5 8.84626e+00 6.48186e+00 457 2016 6 2.82009e+01 6.64181e+00 515 2016 7 1.98633e+01 9.49020e+00 801 2016 8 1.54267e+01 5.81819e+00 435 2016 9 1.33628e+01 4.27610e+00 599 2016 10 1.44750e+01 1.09741e+01 666 2016 11 3.25975e+01 1.07066e+01 728 2016 12 2.97872e+01 1.36230e+01 602 2017 1 2.58638e+01 1.79171e+01 518 2017 2 2.23995e+01 9.39376e+00 924 2017 3 2.34341e+01 1.05650e+01 772 2017 4 2.27892e+01 5.58913e+00 567 2017 5 2.22868e+01 7.08262e+00 418 2017 6 2.92682e+01 9.19412e+00 166 2017 7 1.37086e+01 3.72380e+00 142 2017 8 1.58974e+01 6.61046e+00 355 2017 9 1.91223e+01 7.29641e+00 262 2017 10 4.14814e+00 3.97405e+00 499 2017 11 1.86407e+01 8.63898e+00 1138 2017 12 2.28439e+01 8.62519e+00 627 2018 1 2.07464e+01 1.21130e+01 585 2018 2 1.86671e+01 7.36299e+00 640 2018 3 1.69872e+01 1.11318e+01 687 2018 4 1.74306e+01 1.07592e+01 429 2018 5 1.42873e+01 5.38211e+00 384 2018 6 1.57370e+01 6.24568e+00 311 2018 7 9.98957e+00 3.63381e+00 151 2018 8 2.97013e+00 3.60871e+00 214 2018 9 1.51580e+01 1.11423e+01 659 2018 10 1.02046e+01 7.09367e+00 766 2018 11 5.86763e+00 5.95727e+00 149 2018 12 5.70379e+00 5.66715e+00 647 2019 1 1.01843e+00 1.19160e+00 462 2019 2 7.45652e+00 1.03917e+01 237 2019 3 8.43302e+00 8.47604e+00 597 2019 4 9.90337e+00 6.26370e+00 407 2019 5 2.05590e+01 9.13595e+00 591 2019 6 2.06163e+01 7.53683e+00 65 2019 7 2.22449e+01 4.21995e+00 125 2019 8 1.10491e+01 9.53697e+00 369 2019 9 1.86241e+01 1.32791e+01 408 2019 10 1.49101e+01 8.70546e+00 440 2019 11 2.45243e+01 9.53996e+00 612 2019 12 1.38232e+01 1.13096e+01 441 2020 1 1.86610e+01 9.63531e+00 541 2020 2 1.68253e+01 1.00734e+01 555 2020 3 1.65810e+01 8.76430e+00 706 2020 4 1.47402e+01 1.23588e+01 491 2020 5 2.02169e+01 9.90016e+00 581 2020 6 1.49152e+01 1.04411e+01 421 2020 7 1.41625e+01 9.74508e+00 133 2020 8 1.68199e+01 3.57765e+00 166 2020 9 6.20934e+00 3.02741e+00 168 2020 10 8.74201e+00 8.94680e+00 298 2020 11 1.07235e+01 6.95905e+00 669 2020 12 1.44248e+01 9.06050e+00 543 2021 1 7.73072e+00 8.64649e+00 415 2021 2 5.83336e+00 5.10231e+00 402 2021 3 7.14849e+00 4.81262e+00 406 2021 4 6.69527e+00 3.82303e+00 371 2021 5 1.39646e+01 6.61214e+00 384 2021 6 1.28466e+01 9.86668e+00 165 2021 7 1.65704e+01 9.60788e+00 84 2021 8 8.56679e+00 3.37373e+00 72 2021 9 1.29214e+01 2.46549e+01 487 2021 10 1.18828e+01 8.15397e+00 430 2021 11 7.37894e+00 4.46555e+00 954 2021 12 1.39711e+01 9.54234e+00 608 2022 1 6.88877e+00 4.75346e+00 642 2022 2 1.59184e+01 1.04574e+01 711 2022 3 1.69626e+01 1.29536e+01 753 2022 4 5.71882e+00 6.78086e-01 64 2022 5 6.38767e+00 5.83965e+00 445 2022 6 2.03272e+01 4.74721e+00 320 2022 7 1.84480e+01 2.13612e+01 95 2022 8 2.04396e+01 5.98099e+00 406 2022 9 2.51738e+01 1.87865e+01 311 2022 10 2.48607e+01 1.08078e+01 1161 2022 11 2.08067e+01 1.62842e+01 369 2022 12 2.04535e+01 1.44598e+01 755 2023 1 2.26594e+01 1.00614e+01 761 2023 2 2.47892e+01 9.95749e+00 656 2023 3 1.65043e+01 1.17655e+01 787 2023 4 2.08400e+01 1.29958e+01 389 2023 5 2.16355e+01 9.09034e+00 262 2023 6 2.77406e+01 1.08997e+01 263 2023 7 1.30515e+01 1.14744e+01 469 2023 8 2.12882e+01 2.40373e+01 448 2023 9 1.28258e+01 9.32395e+00 448 2023 10 1.55845e+01 1.04205e+01 389 2023 11 2.27258e+01 1.12834e+01 673 2023 12 8.06203e+00 7.45332e+00 366 2024 1 7.21183e-01 1.14001e+00 313 2024 2 5.02592e+00 3.65358e+00 609 2024 3 7.73521e+00 5.54999e+00 245 2024 4 nan nan 0