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 3.27630e+01 5.01602e+00 214 2002 8 2.55430e+01 1.93246e+00 468 2002 9 1.86416e+01 6.25181e+00 593 2002 10 1.22213e+01 3.67564e+00 1110 2002 11 9.94359e+00 6.63670e+00 620 2002 12 8.01722e+00 3.97160e+00 769 2003 1 1.14013e+01 3.36234e+00 879 2003 2 1.19404e+01 2.90839e+00 561 2003 3 1.55726e+01 2.23732e+00 408 2003 4 1.25887e+01 4.46251e+00 576 2003 5 2.69781e+01 5.02559e+00 866 2003 6 2.95351e+01 4.93153e+00 268 2003 7 3.15651e+01 3.45913e+00 439 2003 8 2.61084e+01 5.25306e+00 368 2003 9 9.33373e+00 5.83199e+00 509 2003 10 1.14355e+01 6.83363e+00 834 2003 11 1.17301e+01 6.30563e+00 922 2003 12 5.35758e+00 3.80741e+00 837 2004 1 1.24557e+01 4.13519e+00 896 2004 2 1.87149e+01 5.28598e+00 623 2004 3 2.81751e+01 4.25952e+00 1022 2004 4 1.72222e+01 5.22583e+00 562 2004 5 2.83239e+01 4.37856e+00 896 2004 6 3.17256e+01 5.65366e+00 632 2004 7 2.89912e+01 6.91609e+00 581 2004 8 1.96562e+01 4.97736e+00 451 2004 9 1.01475e+01 4.53899e+00 403 2004 10 5.27911e+00 1.98125e+00 1112 2004 11 1.01000e+01 5.36812e+00 1088 2004 12 6.16719e+00 4.89314e+00 454 2005 1 7.86600e+00 4.21031e+00 967 2005 2 8.61138e+00 7.80420e+00 960 2005 3 1.69356e+01 5.88957e+00 393 2005 4 2.54866e+01 4.98572e+00 757 2005 5 2.91111e+01 3.23880e+00 646 2005 6 2.16634e+01 3.78480e+00 448 2005 7 1.83707e+01 1.01858e+01 598 2005 8 1.17434e+01 5.66174e+00 810 2005 9 2.05974e+00 2.18369e+00 415 2005 10 2.23867e+00 2.11596e+00 874 2005 11 1.93277e+00 2.76836e+00 1047 2005 12 2.67811e+00 2.16102e+00 791 2006 1 8.61537e+00 5.97916e+00 681 2006 2 1.23425e+01 6.48820e+00 768 2006 3 2.07828e+01 2.75478e+00 1033 2006 4 2.81819e+01 2.38196e+00 890 2006 5 2.76332e+01 2.91598e+00 786 2006 6 2.33188e+01 5.25989e+00 887 2006 7 2.62712e+01 3.75386e+00 574 2006 8 3.34707e+01 2.74206e+00 400 2006 9 2.26118e+01 7.64243e+00 776 2006 10 4.00548e+00 2.24221e+00 955 2006 11 7.02193e+00 3.93653e+00 755 2006 12 7.56000e+00 4.70408e+00 448 2007 1 1.38697e+01 3.75961e+00 641 2007 2 1.11954e+01 4.41768e+00 704 2007 3 2.58349e+01 5.76338e+00 576 2007 4 1.46690e+01 8.83158e+00 829 2007 5 2.31611e+01 4.80164e+00 645 2007 6 3.04567e+01 8.57808e+00 531 2007 7 2.95404e+01 3.87721e+00 438 2007 8 2.42370e+01 6.04807e+00 758 2007 9 1.45972e+01 5.55928e+00 778 2007 10 8.85610e+00 4.11144e+00 818 2007 11 1.07241e+01 3.06995e+00 1087 2007 12 1.19390e+01 6.43478e+00 1067 2008 1 1.19403e+01 4.91371e+00 624 2008 2 2.00872e+01 5.37991e+00 832 2008 3 1.73676e+01 1.09242e+01 704 2008 4 2.53500e+01 4.54903e+00 961 2008 5 2.73104e+01 5.06293e+00 640 2008 6 3.09877e+01 1.84619e+00 634 2008 7 2.85027e+01 6.53967e+00 501 2008 8 1.98988e+01 3.56479e+00 320 2008 9 7.42984e+00 7.13288e+00 330 2008 10 4.17219e+00 2.60162e+00 729 2008 11 1.00748e+01 3.25967e+00 1024 2008 12 9.57062e+00 6.35112e+00 1090 2009 1 1.25735e+01 6.43169e+00 832 2009 2 2.08717e+01 6.02788e+00 1099 2009 3 2.02741e+01 9.44917e+00 1152 2009 4 2.13583e+01 7.74350e+00 675 2009 5 3.07046e+01 2.85351e+00 590 2009 6 3.46048e+01 4.86768e+00 268 2009 7 3.22113e+01 4.55639e+00 334 2009 8 3.10382e+01 3.75852e+00 602 2009 9 2.26445e+01 5.06472e+00 697 2009 10 1.61847e+01 4.08662e+00 957 2009 11 1.11060e+01 4.40358e+00 417 2009 12 5.38893e+00 3.45789e+00 385 2010 1 9.65441e+00 4.61468e+00 496 2010 2 8.51363e+00 4.28129e+00 352 2010 3 1.08578e+01 6.48629e+00 1008 2010 4 2.05026e+01 2.06090e+00 767 2010 5 2.76010e+01 3.71106e+00 751 2010 6 3.10218e+01 2.89608e+00 832 2010 7 2.97701e+01 2.70530e+00 523 2010 8 2.66373e+01 3.12479e+00 761 2010 9 2.17715e+01 3.31850e+00 667 2010 10 1.88295e+01 2.78524e+00 1216 2010 11 1.28207e+01 1.85062e+00 964 2010 12 3.18882e+00 3.00918e+00 792 2011 1 9.81729e+00 2.75926e+00 538 2011 2 1.54380e+01 3.65548e+00 878 2011 3 2.00216e+01 2.55631e+00 1085 2011 4 1.90806e+01 6.38037e+00 859 2011 5 1.89997e+01 3.60023e+00 960 2011 6 2.19530e+01 3.60327e+00 600 2011 7 3.25241e+01 4.10897e+00 524 2011 8 2.66982e+01 2.76002e+00 293 2011 9 1.01514e+01 1.98533e+00 340 2011 10 8.41235e+00 5.92436e+00 767 2011 11 9.01916e+00 3.34286e+00 1075 2011 12 1.12284e+01 4.04017e+00 1014 2012 1 7.26055e+00 2.50982e+00 969 2012 2 1.61664e+01 4.77862e+00 594 2012 3 1.80177e+01 3.30565e+00 1163 2012 4 2.70418e+01 3.61653e+00 768 2012 5 2.38017e+01 2.67008e+00 512 2012 6 2.58084e+01 9.19828e+00 320 2012 7 2.56588e+01 6.85346e+00 468 2012 8 3.11769e+01 2.65982e+00 468 2012 9 2.34873e+01 1.09596e+00 407 2012 10 2.28264e+01 6.40177e+00 860 2012 11 1.35181e+01 2.35213e+00 952 2012 12 1.05170e+01 6.73890e+00 768 2013 1 1.11956e+01 3.63721e+00 860 2013 2 1.50982e+01 5.23384e+00 896 2013 3 1.93328e+01 6.60186e+00 882 2013 4 2.81718e+01 2.82419e+00 528 2013 5 1.32859e+01 5.16663e+00 721 2013 6 2.64438e+01 3.41459e+00 475 2013 7 2.75547e+01 6.31686e+00 292 2013 8 2.37871e+01 3.64708e+00 538 2013 9 1.43471e+01 6.79371e+00 686 2013 10 6.46348e+00 3.79845e+00 983 2013 11 1.10263e+01 2.88978e+00 320 2013 12 8.92630e+00 3.42397e+00 576 2014 1 3.80451e+00 2.53225e+00 449 2014 2 1.34799e+01 4.03085e+00 684 2014 3 1.73471e+01 3.70325e+00 704 2014 4 1.92248e+01 3.82001e+00 576 2014 5 2.51822e+01 3.47599e+00 892 2014 6 2.73782e+01 4.61724e+00 869 2014 7 2.70464e+01 2.47925e+00 283 2014 8 2.03081e+01 5.28894e+00 560 2014 9 1.33897e+01 2.07118e+00 320 2014 10 1.38204e+01 3.26113e+00 1056 2014 11 6.71175e+00 3.14125e+00 887 2014 12 6.36498e+00 1.80400e+00 688 2015 1 4.87066e+00 2.81105e+00 625 2015 2 9.72698e+00 3.01007e+00 896 2015 3 2.06027e+01 3.17355e+00 1024 2015 4 2.21560e+01 3.47407e+00 448 2015 5 8.21844e+00 3.55274e+00 1091 2015 6 2.20188e+01 3.33092e+00 640 2015 7 1.98483e+01 3.53679e+00 256 2015 8 2.22181e+01 4.76754e+00 612 2015 9 1.71575e+01 2.22771e+00 277 2015 10 1.09315e+01 3.16236e+00 634 2015 11 1.10503e+01 3.83426e+00 828 2015 12 1.35142e+01 4.10362e+00 198 2016 1 4.31333e+00 4.13407e+00 301 2016 2 6.89067e+00 5.68413e+00 896 2016 3 2.22329e+01 8.67272e+00 672 2016 4 2.00016e+01 3.43436e+00 959 2016 5 1.56372e+01 6.20846e+00 743 2016 6 3.00795e+01 5.62322e+00 640 2016 7 3.48576e+01 4.05256e+00 710 2016 8 2.21820e+01 4.82693e+00 640 2016 9 1.99201e+01 2.41433e+00 766 2016 10 1.71080e+01 4.90506e+00 1088 2016 11 1.67131e+01 3.30038e+00 1264 2016 12 1.70892e+01 2.24151e+00 917 2017 1 1.25136e+01 9.20643e+00 1154 2017 2 1.42247e+01 6.14795e+00 896 2017 3 2.17310e+01 4.70636e+00 1150 2017 4 2.62421e+01 2.24082e+00 576 2017 5 2.29756e+01 6.20784e+00 640 2017 6 2.60789e+01 4.74664e+00 238 2017 7 3.22632e+01 4.66035e+00 365 2017 8 2.32636e+01 3.12652e+00 450 2017 9 6.85974e+00 1.13339e+01 781 2017 10 3.18113e+00 1.33991e+00 768 2017 11 7.81929e+00 2.45331e+00 1019 2017 12 9.11455e+00 4.55484e+00 973 2018 1 8.18010e+00 3.62522e+00 607 2018 2 2.40722e+01 2.77406e+00 816 2018 3 2.39503e+01 4.46729e+00 1164 2018 4 2.19764e+01 5.70638e+00 1024 2018 5 2.85072e+01 4.55623e+00 398 2018 6 2.44576e+01 5.47223e+00 384 2018 7 1.85393e+01 7.19227e+00 402 2018 8 2.37159e+01 2.21137e+00 677 2018 9 1.61313e+01 5.40669e+00 831 2018 10 1.52823e+01 7.29717e+00 896 2018 11 1.58732e+01 8.28406e+00 575 2018 12 3.70449e+00 3.92809e+00 704 2019 1 7.13891e+00 4.53149e+00 896 2019 2 1.76027e+01 3.30628e+00 717 2019 3 1.96143e+01 4.26681e+00 838 2019 4 1.72125e+01 5.32922e+00 687 2019 5 2.55575e+01 2.97578e+00 943 2019 6 2.71336e+01 5.10221e+00 659 2019 7 1.94487e+01 6.35117e+00 691 2019 8 2.36121e+01 6.47466e+00 386 2019 9 1.28939e+01 3.14216e+00 830 2019 10 8.89829e+00 4.57117e+00 979 2019 11 3.70932e+00 2.56925e+00 573 2019 12 1.18715e+01 5.33414e+00 458 2020 1 1.29243e+01 6.29338e+00 718 2020 2 1.89963e+01 7.06128e+00 728 2020 3 2.92361e+01 3.05443e+00 905 2020 4 3.31992e+01 6.47525e+00 512 2020 5 2.65067e+01 6.35780e+00 576 2020 6 2.69150e+01 3.69746e+00 639 2020 7 2.68280e+01 7.01259e+00 301 2020 8 2.44275e+01 3.83189e+00 422 2020 9 1.30666e+01 5.23290e+00 345 2020 10 1.29162e+01 3.26332e+00 545 2020 11 5.68915e+00 4.76218e+00 721 2020 12 3.57666e+00 2.48436e+00 768 2021 1 8.29684e+00 3.55795e+00 768 2021 2 1.79873e+01 8.76600e+00 631 2021 3 2.25860e+01 3.07671e+00 909 2021 4 2.37078e+01 4.46633e+00 896 2021 5 2.64782e+01 4.15293e+00 1005 2021 6 2.58691e+01 5.39108e+00 373 2021 7 1.92396e+01 1.01862e+01 490 2021 8 2.21038e+01 8.47548e+00 640 2021 9 1.27582e+01 2.63995e+00 513 2021 10 1.02495e+01 5.44052e+00 707 2021 11 7.00853e+00 4.94466e+00 759 2021 12 1.61032e+01 3.82434e+00 884 2022 1 1.27287e+01 9.17360e+00 792 2022 2 1.24491e+01 5.90036e+00 1069 2022 3 1.64684e+01 4.67811e+00 885 2022 4 2.96568e+01 1.97649e+00 384 2022 5 3.23445e+01 2.81901e+00 832 2022 6 2.98313e+01 4.02656e+00 653 2022 7 2.34148e+01 3.33780e+00 534 2022 8 1.16256e+01 5.97947e+00 575 2022 9 1.30459e+01 2.78827e+00 448 2022 10 4.51329e+00 3.92165e+00 1244 2022 11 1.05543e+01 2.61696e+00 765 2022 12 9.07839e+00 1.76480e+00 869 2023 1 1.66739e+01 5.01267e+00 960 2023 2 1.40791e+01 8.15996e+00 1155 2023 3 2.84079e+01 5.48118e+00 1088 2023 4 3.23095e+01 4.98442e+00 384 2023 5 2.35462e+01 7.68095e+00 704 2023 6 2.97604e+01 3.73081e+00 527 2023 7 1.92613e+01 1.02445e+01 664 2023 8 5.91266e+00 3.69886e+00 550 2023 9 1.12480e+01 8.07099e+00 687 2023 10 1.21930e+01 3.53184e+00 657 2023 11 1.66498e+01 3.94577e+00 704 2023 12 8.65428e+00 5.94744e+00 445 2024 1 1.27067e+01 4.38725e+00 426 2024 2 1.72268e+01 4.68888e+00 832 2024 3 2.62664e+01 4.28041e+00 637 2024 4 nan nan 0