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 8.22067e+00 5.92578e-01 154 2002 8 7.70082e+00 1.14137e+00 553 2002 9 7.17836e+00 1.84059e+00 516 2002 10 7.16860e+00 8.70753e-01 983 2002 11 4.59068e+00 1.67360e+00 650 2002 12 4.47974e+00 1.26637e+00 826 2003 1 4.41084e+00 1.20666e+00 982 2003 2 6.51485e+00 7.48731e-01 658 2003 3 7.47647e+00 6.64912e-01 405 2003 4 7.61377e+00 1.18249e+00 704 2003 5 8.07219e+00 9.05560e-01 768 2003 6 6.68808e+00 1.03361e+00 269 2003 7 9.50700e+00 1.00518e+00 348 2003 8 7.77811e+00 8.69844e-01 518 2003 9 6.45419e+00 1.25601e+00 504 2003 10 6.42476e+00 8.48988e-01 890 2003 11 5.93594e+00 1.84007e+00 1087 2003 12 4.33287e+00 1.33804e+00 852 2004 1 7.20394e+00 1.48577e+00 907 2004 2 6.19503e+00 1.12482e+00 704 2004 3 9.67699e+00 9.53819e-01 960 2004 4 8.26634e+00 1.97205e+00 564 2004 5 1.13531e+01 9.98247e-01 517 2004 6 1.08343e+01 8.72254e-01 819 2004 7 1.04040e+01 1.36862e+00 373 2004 8 8.78276e+00 7.95063e-01 422 2004 9 4.77425e+00 2.16382e+00 385 2004 10 4.71515e+00 1.67926e+00 917 2004 11 5.98867e+00 1.50699e+00 893 2004 12 3.99966e+00 2.00903e+00 448 2005 1 4.42578e+00 1.87244e+00 896 2005 2 3.62897e+00 1.31162e+00 907 2005 3 3.50199e+00 1.11383e+00 448 2005 4 7.94284e+00 1.54691e+00 738 2005 5 1.00871e+01 8.69223e-01 448 2005 6 7.71072e+00 1.09684e+00 576 2005 7 5.76691e+00 1.68945e+00 598 2005 8 6.03753e+00 1.67411e+00 722 2005 9 3.47216e+00 9.66806e-01 539 2005 10 3.37143e+00 9.91683e-01 631 2005 11 3.28239e+00 1.31266e+00 953 2005 12 4.06751e+00 6.02695e-01 832 2006 1 4.65610e+00 1.75326e+00 791 2006 2 5.88413e+00 1.43723e+00 960 2006 3 8.12630e+00 9.28596e-01 1088 2006 4 1.09951e+01 1.16775e+00 896 2006 5 1.08665e+01 8.54417e-01 610 2006 6 9.51871e+00 1.92964e+00 644 2006 7 9.38712e+00 1.21035e+00 365 2006 8 6.76509e+00 8.44311e-01 414 2006 9 6.62245e+00 1.76454e+00 691 2006 10 5.20941e+00 1.13634e+00 1002 2006 11 4.46589e+00 1.09226e+00 640 2006 12 5.51235e+00 1.72755e+00 404 2007 1 6.68860e+00 1.24566e+00 510 2007 2 7.21226e+00 1.47531e+00 768 2007 3 9.80367e+00 1.82136e+00 768 2007 4 8.53182e+00 2.12918e+00 682 2007 5 9.11223e+00 1.12201e+00 597 2007 6 1.00898e+01 1.50350e+00 448 2007 7 9.46459e+00 1.99079e+00 573 2007 8 8.56373e+00 1.11038e+00 652 2007 9 6.81353e+00 2.09979e+00 832 2007 10 8.26518e+00 1.26508e+00 566 2007 11 7.72436e+00 1.35127e+00 993 2007 12 7.62931e+00 2.21188e+00 1151 2008 1 7.21255e+00 2.16408e+00 640 2008 2 9.42587e+00 2.52780e+00 859 2008 3 8.56616e+00 1.73248e+00 636 2008 4 9.73363e+00 1.00289e+00 960 2008 5 7.71256e+00 6.67903e-01 579 2008 6 8.75967e+00 8.35209e-01 704 2008 7 8.51878e+00 1.25844e+00 467 2008 8 8.16982e+00 5.90106e-01 192 2008 9 6.38135e+00 1.80644e+00 448 2008 10 8.63152e+00 1.66008e+00 1020 2008 11 6.56654e+00 1.04243e+00 904 2008 12 6.59281e+00 2.37925e+00 1247 2009 1 7.02072e+00 1.69207e+00 960 2009 2 7.90394e+00 2.37904e+00 1077 2009 3 8.47775e+00 2.27050e+00 1095 2009 4 8.85400e+00 1.39054e+00 576 2009 5 1.02031e+01 8.81509e-01 706 2009 6 8.80837e+00 6.32138e-01 320 2009 7 1.02044e+01 1.05348e+00 448 2009 8 9.46000e+00 1.53625e+00 594 2009 9 8.23840e+00 1.03059e+00 598 2009 10 7.45937e+00 1.28394e+00 871 2009 11 6.65499e+00 7.41147e-01 460 2009 12 5.43658e+00 2.10215e+00 487 2010 1 5.62419e+00 1.04697e+00 466 2010 2 4.55519e+00 1.54166e+00 481 2010 3 4.96821e+00 7.29410e-01 960 2010 4 8.62342e+00 1.87761e+00 740 2010 5 1.02706e+01 6.45059e-01 704 2010 6 1.10401e+01 6.68121e-01 733 2010 7 1.04864e+01 9.03781e-01 256 2010 8 9.41289e+00 1.11519e+00 443 2010 9 8.97218e+00 1.09302e+00 737 2010 10 7.76272e+00 1.01716e+00 1152 2010 11 7.71922e+00 1.12009e+00 1020 2010 12 4.89172e+00 1.37275e+00 835 2011 1 6.79564e+00 1.13858e+00 640 2011 2 7.56131e+00 1.18071e+00 694 2011 3 8.38024e+00 1.59724e+00 1088 2011 4 9.47974e+00 8.51451e-01 1005 2011 5 8.06115e+00 1.00323e+00 731 2011 6 8.92227e+00 1.27711e+00 576 2011 7 9.37220e+00 1.16739e+00 497 2011 8 6.78652e+00 1.63971e+00 340 2011 9 6.18998e+00 5.42006e-01 501 2011 10 5.47054e+00 1.23660e+00 768 2011 11 6.70728e+00 1.56823e+00 1024 2011 12 6.79533e+00 1.21812e+00 1126 2012 1 7.53938e+00 1.89919e+00 860 2012 2 8.20644e+00 1.94454e+00 832 2012 3 9.23836e+00 9.58215e-01 1038 2012 4 8.27564e+00 6.22791e-01 746 2012 5 9.17145e+00 7.71658e-01 548 2012 6 7.99503e+00 5.39559e-01 147 2012 7 8.09367e+00 2.80367e+00 249 2012 8 8.64668e+00 5.81909e-01 238 2012 9 7.50695e+00 7.40726e-01 547 2012 10 6.47008e+00 9.35797e-01 776 2012 11 6.22031e+00 1.14463e+00 798 2012 12 4.45969e+00 1.72654e+00 704 2013 1 6.08222e+00 1.44125e+00 1068 2013 2 5.97041e+00 1.60547e+00 777 2013 3 6.04146e+00 1.44353e+00 896 2013 4 9.02764e+00 1.39602e+00 574 2013 5 7.39054e+00 1.55263e+00 791 2013 6 7.77372e+00 1.10921e+00 627 2013 7 6.57503e+00 8.33625e-01 284 2013 8 6.36105e+00 1.66685e+00 381 2013 9 6.34692e+00 1.20014e+00 1024 2013 10 5.97994e+00 9.35806e-01 861 2013 11 7.04987e+00 7.10249e-01 197 2013 12 6.31769e+00 2.70703e-01 577 2014 1 4.07186e+00 1.56005e+00 563 2014 2 5.38371e+00 9.51238e-01 704 2014 3 5.39746e+00 6.53893e-01 669 2014 4 8.85875e+00 1.29230e+00 475 2014 5 8.69297e+00 9.49003e-01 768 2014 6 9.31999e+00 7.86510e-01 545 2014 7 9.98448e+00 5.59293e-01 230 2014 8 7.63559e+00 9.17369e-01 618 2014 9 6.10507e+00 7.06395e-01 140 2014 10 6.68366e+00 1.26959e+00 1324 2014 11 4.93340e+00 1.41921e+00 832 2014 12 6.58124e+00 7.53535e-01 760 2015 1 5.57907e+00 1.78082e+00 689 2015 2 4.87844e+00 7.52217e-01 640 2015 3 8.17859e+00 1.07425e+00 1119 2015 4 1.02999e+01 7.52723e-01 389 2015 5 8.77339e+00 6.62429e-01 768 2015 6 7.83712e+00 6.22374e-01 384 2015 7 7.15874e+00 1.63020e+00 246 2015 8 6.77268e+00 5.43430e-01 512 2015 9 5.30635e+00 1.38561e+00 399 2015 10 5.72752e+00 6.31014e-01 658 2015 11 5.41074e+00 6.81156e-01 953 2015 12 5.93245e+00 1.24318e+00 520 2016 1 3.79934e+00 2.00942e+00 419 2016 2 3.59300e+00 1.20707e+00 880 2016 3 7.43614e+00 1.70448e+00 630 2016 4 8.46663e+00 1.23173e+00 754 2016 5 8.79748e+00 1.06337e+00 768 2016 6 1.01947e+01 1.50360e+00 449 2016 7 9.59650e+00 7.04730e-01 636 2016 8 7.74525e+00 1.04482e+00 650 2016 9 7.21950e+00 2.04494e+00 898 2016 10 7.32869e+00 2.10786e+00 947 2016 11 7.61780e+00 9.14403e-01 903 2016 12 8.01507e+00 4.57252e-01 918 2017 1 6.92669e+00 2.16475e+00 833 2017 2 7.07371e+00 1.45823e+00 1088 2017 3 8.41471e+00 1.45671e+00 1117 2017 4 8.82332e+00 8.96228e-01 756 2017 5 8.02506e+00 1.44335e+00 689 2017 6 7.70333e+00 8.23294e-01 256 2017 7 9.24246e+00 7.77214e-01 412 2017 8 6.33986e+00 1.07316e+00 510 2017 9 4.62790e+00 1.38450e+00 845 2017 10 4.95714e+00 1.65557e+00 763 2017 11 5.38184e+00 1.14621e+00 988 2017 12 6.03501e+00 1.70735e+00 1074 2018 1 3.86184e+00 1.07243e+00 693 2018 2 9.05800e+00 1.18887e+00 917 2018 3 7.13477e+00 1.81575e+00 1113 2018 4 8.93313e+00 1.39752e+00 978 2018 5 9.95199e+00 1.15026e+00 512 2018 6 9.57953e+00 8.15988e-01 517 2018 7 1.03683e+01 2.22913e+00 406 2018 8 8.72466e+00 6.28034e-01 893 2018 9 4.98575e+00 2.50949e+00 909 2018 10 5.51111e+00 2.38976e+00 1035 2018 11 6.80340e+00 2.68395e+00 487 2018 12 5.14397e+00 1.79873e+00 564 2019 1 5.26514e+00 1.74109e+00 1013 2019 2 8.56724e+00 8.68721e-01 640 2019 3 8.12026e+00 1.10977e+00 832 2019 4 7.94001e+00 2.03931e+00 568 2019 5 1.04231e+01 6.89753e-01 886 2019 6 1.06352e+01 1.06628e+00 513 2019 7 7.57031e+00 9.45267e-01 576 2019 8 7.14290e+00 1.03907e+00 324 2019 9 7.31124e+00 1.35411e+00 707 2019 10 7.07833e+00 1.43480e+00 964 2019 11 5.84295e+00 9.77380e-01 524 2019 12 4.92362e+00 1.12376e+00 347 2020 1 5.94520e+00 1.46718e+00 735 2020 2 7.43954e+00 2.28496e+00 605 2020 3 9.55560e+00 2.01266e+00 960 2020 4 9.40508e+00 1.64435e+00 448 2020 5 9.88805e+00 9.92640e-01 820 2020 6 8.89641e+00 1.11330e+00 424 2020 7 8.60343e+00 4.83945e-01 320 2020 8 8.11874e+00 6.59531e-01 384 2020 9 5.70158e+00 7.28312e-01 320 2020 10 5.36549e+00 1.11055e+00 717 2020 11 4.17318e+00 1.14564e+00 901 2020 12 4.15078e+00 9.55349e-01 705 2021 1 5.90067e+00 1.08253e+00 832 2021 2 7.31381e+00 1.60430e+00 765 2021 3 9.04548e+00 6.66402e-01 757 2021 4 7.73957e+00 7.66321e-01 985 2021 5 9.35880e+00 1.59848e+00 960 2021 6 8.98407e+00 6.94525e-01 268 2021 7 6.31324e+00 1.17125e+00 438 2021 8 6.28531e+00 1.92516e+00 574 2021 9 4.92672e+00 1.51816e+00 639 2021 10 3.93493e+00 1.13450e+00 856 2021 11 5.20191e+00 1.34155e+00 821 2021 12 5.83204e+00 1.18666e+00 1034 2022 1 4.01359e+00 1.31608e+00 781 2022 2 6.92335e+00 1.78693e+00 1089 2022 3 7.98090e+00 1.48144e+00 960 2022 4 9.92638e+00 6.70893e-01 384 2022 5 1.10214e+01 9.11304e-01 737 2022 6 1.03846e+01 8.07077e-01 361 2022 7 8.33589e+00 1.20018e+00 565 2022 8 6.11582e+00 7.33297e-01 418 2022 9 4.77232e+00 5.09098e-01 413 2022 10 5.00147e+00 1.32036e+00 1007 2022 11 5.76688e+00 1.63125e+00 654 2022 12 6.78820e+00 8.63419e-01 960 2023 1 7.62069e+00 2.11261e+00 1008 2023 2 8.07168e+00 2.46676e+00 1120 2023 3 7.89617e+00 1.48218e+00 967 2023 4 9.35681e+00 6.40336e-01 473 2023 5 8.07351e+00 1.89906e+00 721 2023 6 9.08356e+00 8.92265e-01 523 2023 7 6.52655e+00 1.02371e+00 640 2023 8 4.56122e+00 1.30644e+00 444 2023 9 4.85607e+00 1.59834e+00 723 2023 10 7.60378e+00 1.29567e+00 669 2023 11 6.69395e+00 7.73141e-01 752 2023 12 5.40507e+00 1.69300e+00 374 2024 1 5.40155e+00 1.22263e+00 512 2024 2 6.42634e+00 1.78084e+00 966 2024 3 8.80391e+00 1.30343e+00 612 2024 4 nan nan 0