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 3.01448e+01 2.25895e+00 401 2002 8 2.26875e+01 1.19508e+00 340 2002 9 2.33155e+01 4.98974e+00 308 2002 10 1.48357e+01 4.21923e+00 808 2002 11 8.09040e+00 2.25880e+00 304 2002 12 1.03772e+01 6.40179e-01 214 2003 1 1.40689e+01 5.50585e+00 356 2003 2 1.75614e+01 3.23373e+00 893 2003 3 2.49801e+01 3.74478e+00 585 2003 4 2.72767e+01 4.44673e+00 254 2003 5 3.09686e+01 4.36787e+00 583 2003 6 2.60560e+01 2.22134e+00 256 2003 7 2.46740e+01 2.36489e+00 349 2003 8 2.62561e+01 2.39245e+00 308 2003 9 2.75122e+01 3.15936e+00 337 2003 10 1.36763e+01 7.09149e+00 699 2003 11 1.11469e+01 2.70497e+00 670 2003 12 1.52802e+01 1.43625e-01 64 2004 1 2.14950e+01 2.45355e+00 500 2004 2 2.19708e+01 1.45941e+00 401 2004 3 2.57148e+01 4.25217e+00 880 2004 4 2.42960e+01 5.74841e+00 384 2004 5 2.06679e+01 3.51204e+00 832 2004 6 2.45594e+01 2.34464e+00 672 2004 7 2.89415e+01 1.47551e+00 317 2004 8 2.21953e+01 2.53326e+00 335 2004 9 1.96502e+01 3.27181e-01 64 2004 10 1.67360e+01 2.97631e+00 454 2004 11 7.43899e+00 8.83049e+00 766 2004 12 1.28289e+00 1.79213e+00 660 2005 1 1.95625e+01 3.30947e+00 390 2005 2 2.22888e+01 3.74172e+00 781 2005 3 2.63530e+01 3.17550e+00 250 2005 4 2.47279e+01 4.85236e+00 582 2005 5 2.69296e+01 1.25773e+00 541 2005 6 2.42092e+01 5.31451e+00 381 2005 7 2.67471e+01 7.90795e+00 567 2005 8 2.92796e+01 5.31447e+00 446 2005 9 2.54182e+01 3.29891e+00 395 2005 10 1.01797e+01 7.29185e+00 400 2005 11 2.51796e+00 2.54638e+00 923 2005 12 1.50026e+00 1.35180e+00 850 2006 1 3.36903e+00 2.67813e+00 823 2006 2 1.53394e+01 2.20975e+00 256 2006 3 2.44599e+01 5.22097e+00 512 2006 4 3.25265e+01 4.26186e+00 786 2006 5 2.80145e+01 5.35440e+00 569 2006 6 1.96225e+01 6.43065e+00 683 2006 7 2.43201e+01 2.42806e+00 514 2006 8 2.24644e+01 2.34486e+00 386 2006 9 1.68711e+01 4.07658e+00 311 2006 10 1.49039e+01 2.85123e+00 459 2006 11 9.17963e+00 5.77560e+00 397 2006 12 1.12864e+01 3.63857e+00 192 2007 1 1.87298e+01 5.47876e+00 577 2007 2 1.94549e+01 3.68314e+00 306 2007 3 2.53121e+01 5.56834e+00 808 2007 4 2.32974e+01 4.53549e+00 634 2007 5 2.74927e+01 4.48711e+00 906 2007 6 2.02819e+01 5.66043e+00 320 2007 7 2.58461e+01 4.35605e+00 769 2007 8 2.15908e+01 1.50054e+00 467 2007 9 1.78336e+01 4.57735e+00 197 2007 10 1.46544e+01 3.61300e+00 436 2007 11 1.39046e+01 3.44248e+00 217 2007 12 1.76235e+01 2.76972e+00 480 2008 1 1.58755e+01 2.77836e+00 293 2008 2 2.40956e+01 2.47295e+00 717 2008 3 2.10735e+01 5.84756e+00 385 2008 4 2.79588e+01 4.30762e+00 833 2008 5 3.11498e+01 5.83816e+00 640 2008 6 2.76785e+01 2.66304e+00 625 2008 7 2.53366e+01 3.24588e+00 333 2008 8 2.20616e+01 6.01965e+00 337 2008 9 8.26306e+00 8.72903e+00 82 2008 10 1.43371e+01 3.82867e+00 449 2008 11 1.59140e+01 5.15760e+00 491 2008 12 1.79905e+01 3.05489e+00 322 2009 1 1.79188e+01 2.64858e+00 431 2009 2 2.16545e+01 4.13664e+00 648 2009 3 2.22896e+01 5.06892e+00 677 2009 4 2.64184e+01 4.68807e+00 554 2009 5 3.18220e+01 3.16741e+00 643 2009 6 2.84604e+01 3.02160e+00 334 2009 7 1.54921e+01 3.59965e+00 363 2009 8 1.33513e+01 5.41597e+00 374 2009 9 1.51735e+01 3.02576e+00 738 2009 10 1.20267e+01 5.93327e+00 854 2009 11 1.05202e+01 6.51615e+00 433 2009 12 1.81259e+01 4.50637e-01 34 2010 1 1.95790e+01 4.70548e-01 83 2010 2 1.85701e+01 5.26775e+00 129 2010 3 nan nan 0 2010 4 2.72270e+01 2.05915e+00 638 2010 5 2.89894e+01 1.82959e+00 825 2010 6 2.74614e+01 2.30173e+00 619 2010 7 2.41798e+01 3.45030e+00 512 2010 8 3.03056e+01 3.28327e+00 600 2010 9 2.31986e+01 2.66151e+00 494 2010 10 1.12096e+01 2.13675e+00 458 2010 11 1.23823e+01 3.19556e+00 493 2010 12 1.67509e+01 2.79057e-01 57 2011 1 nan nan 0 2011 2 2.34344e+01 4.80188e+00 826 2011 3 2.91253e+01 4.51913e+00 1065 2011 4 3.02662e+01 1.46793e+00 785 2011 5 2.64253e+01 3.03251e+00 901 2011 6 2.97012e+01 2.40523e+00 654 2011 7 2.94023e+01 2.77233e+00 478 2011 8 2.26692e+01 3.65190e+00 360 2011 9 2.49587e+01 2.03982e+00 448 2011 10 1.71151e+01 2.64634e+00 126 2011 11 2.28110e+01 3.09124e+00 597 2011 12 9.82511e+00 4.02842e+00 891 2012 1 1.80629e+01 3.37340e+00 689 2012 2 1.52790e+01 7.46013e+00 569 2012 3 2.03527e+01 2.74692e+00 437 2012 4 2.78918e+01 2.05046e+00 640 2012 5 2.65286e+01 5.17715e+00 550 2012 6 2.42855e+01 2.00157e+00 256 2012 7 2.47292e+01 3.68479e+00 323 2012 8 2.53749e+01 2.81476e+00 412 2012 9 1.72005e+01 4.42471e+00 543 2012 10 9.98155e+00 5.02570e+00 774 2012 11 1.03797e+01 6.26537e+00 805 2012 12 2.16066e+01 2.22764e+00 294 2013 1 1.65263e+01 3.40390e+00 536 2013 2 2.33592e+01 5.68860e+00 542 2013 3 2.37927e+01 1.53276e+00 240 2013 4 2.82358e+01 3.98046e+00 700 2013 5 2.95704e+01 2.50731e+00 563 2013 6 2.83993e+01 3.75415e+00 459 2013 7 2.71719e+01 2.11759e+00 380 2013 8 2.62439e+01 2.70357e+00 494 2013 9 1.89623e+01 2.05585e+00 513 2013 10 1.91451e+01 3.34737e+00 726 2013 11 1.19930e+01 5.39789e+00 557 2013 12 9.01990e+00 4.68125e+00 660 2014 1 9.49806e+00 1.81031e+00 137 2014 2 2.23006e+01 4.14179e+00 242 2014 3 2.70961e+01 4.20683e+00 622 2014 4 2.77869e+01 5.68002e+00 705 2014 5 2.52249e+01 3.67440e+00 731 2014 6 2.90187e+01 1.86804e+00 558 2014 7 2.84211e+01 1.73498e+00 382 2014 8 1.80025e+01 6.20565e+00 661 2014 9 1.83884e+01 2.52500e+00 145 2014 10 1.91329e+01 3.40428e+00 1000 2014 11 1.93472e+01 5.07941e+00 320 2014 12 2.06484e+01 2.74846e+00 656 2015 1 2.22418e+01 3.16748e+00 450 2015 2 1.92004e+01 9.28288e-01 181 2015 3 2.69518e+01 5.16052e+00 576 2015 4 2.97040e+01 3.27589e+00 599 2015 5 2.64153e+01 2.57287e+00 990 2015 6 2.41912e+01 4.25544e+00 450 2015 7 1.06990e+01 1.30391e+00 130 2015 8 1.95514e+01 2.00893e+00 426 2015 9 2.26930e+01 4.56113e+00 383 2015 10 1.89920e+01 3.63110e+00 567 2015 11 1.81541e+01 3.74879e+00 850 2015 12 2.22129e+01 3.80889e+00 493 2016 1 1.46284e+01 3.37912e+00 116 2016 2 1.63345e+01 3.26122e+00 386 2016 3 1.37809e+01 3.85509e+00 403 2016 4 2.00021e+01 7.33527e+00 526 2016 5 2.64480e+01 3.34180e+00 790 2016 6 2.71405e+01 3.74510e+00 640 2016 7 2.53570e+01 5.21946e+00 609 2016 8 2.47734e+01 2.22086e+00 448 2016 9 1.82505e+01 6.15634e+00 745 2016 10 8.15613e+00 4.40968e+00 1087 2016 11 6.59096e+00 5.95926e+00 1024 2016 12 1.69763e+01 4.33985e+00 896 2017 1 1.83129e+01 3.56289e+00 454 2017 2 2.06182e+01 3.61250e+00 802 2017 3 2.43893e+01 2.24710e+00 715 2017 4 1.93870e+01 6.82136e+00 420 2017 5 1.71360e+01 3.30466e+00 767 2017 6 2.74679e+01 2.52048e+00 208 2017 7 2.29772e+01 1.09433e+01 262 2017 8 2.45826e+01 3.12592e+00 601 2017 9 5.39387e+00 3.13414e+00 319 2017 10 5.63873e+00 3.24067e+00 448 2017 11 1.13605e+01 2.77997e+00 1075 2017 12 7.86657e+00 2.63700e+00 951 2018 1 4.17348e+00 4.00778e+00 296 2018 2 2.41136e+01 3.60617e+00 873 2018 3 2.10215e+01 3.68792e+00 694 2018 4 2.71196e+01 4.08084e+00 823 2018 5 2.26731e+01 3.72723e+00 374 2018 6 3.20633e+01 1.63342e+00 335 2018 7 2.94407e+01 2.70722e+00 525 2018 8 7.22018e+00 9.24391e+00 404 2018 9 8.96865e+00 9.32609e+00 793 2018 10 4.40587e+00 5.22928e+00 831 2018 11 4.14747e+00 3.53995e+00 831 2018 12 6.60070e+00 4.17991e+00 192 2019 1 3.61477e+00 3.76899e+00 107 2019 2 1.38425e+01 6.84037e+00 1152 2019 3 2.45683e+01 4.37189e+00 751 2019 4 2.14429e+01 2.05645e+00 388 2019 5 2.63134e+01 3.12610e+00 652 2019 6 2.45219e+01 5.84731e+00 896 2019 7 9.89829e+00 6.54632e+00 366 2019 8 1.72052e+01 1.43669e+00 367 2019 9 1.46453e+01 3.47084e+00 433 2019 10 1.27507e+01 5.11229e+00 875 2019 11 7.30916e+00 4.66173e+00 504 2019 12 1.78913e+00 9.43873e-01 566 2020 1 1.20100e+01 5.08206e+00 704 2020 2 1.97402e+01 2.47326e+00 207 2020 3 3.09457e+01 4.55570e+00 861 2020 4 2.76511e+01 3.80812e+00 400 2020 5 2.61712e+01 4.62594e+00 576 2020 6 8.03529e+00 2.50598e+00 395 2020 7 1.12023e+01 4.06368e+00 386 2020 8 1.55543e+01 3.42277e+00 555 2020 9 1.94260e+01 3.91168e+00 549 2020 10 8.68938e+00 1.50632e+00 573 2020 11 1.44519e+01 4.35302e+00 576 2020 12 9.16039e+00 3.28783e+00 584 2021 1 1.57836e+01 3.13963e+00 514 2021 2 1.86439e+01 4.18595e+00 576 2021 3 2.70796e+01 3.64810e+00 1000 2021 4 2.66877e+01 5.33327e+00 768 2021 5 2.60751e+01 3.70710e+00 794 2021 6 2.20124e+01 1.87301e+00 276 2021 7 1.44830e+01 6.93495e+00 327 2021 8 6.28470e+00 6.31947e+00 330 2021 9 7.14784e+00 2.00611e+00 422 2021 10 6.86692e+00 3.40470e+00 510 2021 11 4.12772e+00 2.45274e+00 640 2021 12 1.59354e+01 5.37221e+00 850 2022 1 2.09435e+01 7.69060e+00 348 2022 2 2.44108e+01 2.10942e+00 435 2022 3 2.80056e+01 3.84770e+00 579 2022 4 2.52318e+01 2.48237e+00 151 2022 5 2.86552e+01 4.54657e+00 628 2022 6 2.55557e+01 1.63359e+00 541 2022 7 1.59081e+01 1.15698e+01 505 2022 8 2.02603e+01 7.88177e+00 507 2022 9 2.48464e+01 3.85989e+00 497 2022 10 3.02310e+00 3.10912e+00 827 2022 11 5.66397e+00 5.32736e+00 949 2022 12 8.10743e+00 3.81903e+00 901 2023 1 1.20572e+01 1.17263e+00 512 2023 2 4.51318e+00 5.40570e+00 880 2023 3 2.40462e+01 5.98822e+00 765 2023 4 3.15582e+01 7.06670e+00 317 2023 5 3.22166e+01 1.13899e+00 621 2023 6 2.76472e+01 4.07330e+00 425 2023 7 9.52772e+00 5.37673e+00 554 2023 8 1.86530e+01 6.67938e+00 232 2023 9 2.76015e+01 4.11290e+00 601 2023 10 2.14273e+01 4.85367e+00 498 2023 11 2.68390e+01 3.03610e+00 640 2023 12 1.60662e+01 5.12151e+00 300 2024 1 1.60141e+01 6.01003e+00 256 2024 2 2.15544e+01 5.40884e+00 648 2024 3 2.59532e+01 7.26874e+00 587 2024 4 nan nan 0