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 1.09698e+01 1.48967e+00 365 2002 8 7.82534e+00 1.19323e+00 576 2002 9 7.66167e+00 1.63924e+00 640 2002 10 7.09790e+00 1.14535e+00 1117 2002 11 5.71216e+00 1.99347e+00 768 2002 12 5.19613e+00 1.00065e+00 807 2003 1 5.03746e+00 1.04988e+00 850 2003 2 6.91769e+00 5.11409e-01 640 2003 3 8.05291e+00 1.02846e+00 384 2003 4 6.01031e+00 1.37527e+00 651 2003 5 1.00097e+01 9.15881e-01 668 2003 6 8.11968e+00 1.07032e+00 379 2003 7 9.54780e+00 6.98909e-01 576 2003 8 7.28720e+00 1.25279e+00 464 2003 9 5.26974e+00 1.47069e+00 512 2003 10 6.20395e+00 1.16654e+00 894 2003 11 6.21408e+00 1.67220e+00 1035 2003 12 5.67161e+00 1.74958e+00 822 2004 1 6.58908e+00 1.21599e+00 960 2004 2 7.19546e+00 1.34506e+00 832 2004 3 9.57807e+00 7.56708e-01 1023 2004 4 8.85259e+00 1.70180e+00 491 2004 5 1.05132e+01 1.03815e+00 781 2004 6 1.08058e+01 7.05099e-01 827 2004 7 9.77292e+00 1.02055e+00 510 2004 8 7.54671e+00 1.93255e+00 708 2004 9 4.41405e+00 1.19488e+00 383 2004 10 4.63774e+00 1.22068e+00 866 2004 11 6.37827e+00 1.61630e+00 965 2004 12 4.35559e+00 1.94724e+00 448 2005 1 4.99377e+00 1.42689e+00 1088 2005 2 3.81938e+00 1.20302e+00 947 2005 3 5.31001e+00 1.35446e+00 384 2005 4 8.53385e+00 1.82248e+00 896 2005 5 1.00832e+01 8.15602e-01 563 2005 6 7.64025e+00 1.03612e+00 372 2005 7 7.14967e+00 2.51182e+00 452 2005 8 6.28761e+00 1.40521e+00 705 2005 9 3.70440e+00 1.14220e+00 480 2005 10 3.81493e+00 1.13100e+00 685 2005 11 2.67234e+00 8.63091e-01 923 2005 12 4.18817e+00 4.78056e-01 768 2006 1 4.59607e+00 1.37573e+00 592 2006 2 6.40527e+00 1.14952e+00 960 2006 3 8.14652e+00 8.20494e-01 985 2006 4 1.07464e+01 1.01487e+00 814 2006 5 1.06989e+01 7.89985e-01 778 2006 6 9.43278e+00 1.47007e+00 797 2006 7 9.50574e+00 9.03614e-01 576 2006 8 7.92143e+00 1.31389e+00 495 2006 9 7.83762e+00 1.82455e+00 808 2006 10 4.75250e+00 1.41455e+00 950 2006 11 4.60464e+00 1.53421e+00 564 2006 12 5.73697e+00 1.72376e+00 419 2007 1 7.45498e+00 1.12732e+00 696 2007 2 7.64301e+00 1.51171e+00 640 2007 3 1.00905e+01 1.35069e+00 751 2007 4 8.46360e+00 2.12596e+00 673 2007 5 9.57432e+00 1.35487e+00 538 2007 6 9.39236e+00 2.01369e+00 575 2007 7 7.89030e+00 2.17534e+00 635 2007 8 6.34349e+00 1.57148e+00 826 2007 9 6.83820e+00 1.30487e+00 826 2007 10 6.58057e+00 1.98711e+00 704 2007 11 7.68640e+00 1.27823e+00 1024 2007 12 7.44594e+00 2.30338e+00 997 2008 1 7.56317e+00 1.91379e+00 768 2008 2 8.62402e+00 1.95541e+00 816 2008 3 7.86662e+00 2.01882e+00 642 2008 4 1.07481e+01 6.24172e-01 832 2008 5 9.47769e+00 1.16311e+00 647 2008 6 9.79924e+00 1.02197e+00 576 2008 7 9.07612e+00 6.20867e-01 512 2008 8 9.04279e+00 1.06773e+00 258 2008 9 5.90664e+00 1.80311e+00 501 2008 10 6.15116e+00 1.51440e+00 956 2008 11 7.22365e+00 1.56717e+00 1276 2008 12 6.28823e+00 2.15182e+00 1218 2009 1 7.64039e+00 1.76611e+00 881 2009 2 8.71350e+00 2.50605e+00 1110 2009 3 8.46125e+00 2.23209e+00 913 2009 4 9.75314e+00 1.18260e+00 652 2009 5 1.06974e+01 1.07533e+00 642 2009 6 9.62101e+00 6.49755e-01 304 2009 7 9.36582e+00 3.93157e-01 448 2009 8 9.17987e+00 6.00784e-01 663 2009 9 7.54774e+00 1.58814e+00 741 2009 10 8.06507e+00 1.31152e+00 1066 2009 11 7.46826e+00 1.14108e+00 607 2009 12 6.43377e+00 1.77074e+00 344 2010 1 6.19299e+00 1.06116e+00 580 2010 2 5.01041e+00 1.60067e+00 454 2010 3 5.85467e+00 1.41277e+00 1033 2010 4 8.03515e+00 1.05560e+00 622 2010 5 9.63586e+00 8.96894e-01 704 2010 6 1.15737e+01 5.41586e-01 592 2010 7 1.01216e+01 1.13214e+00 384 2010 8 8.59233e+00 1.12664e+00 588 2010 9 7.75365e+00 1.14287e+00 654 2010 10 8.18713e+00 6.78989e-01 1193 2010 11 8.41803e+00 1.03655e+00 960 2010 12 4.92599e+00 1.68189e+00 960 2011 1 7.11116e+00 1.43720e+00 704 2011 2 8.90313e+00 9.23355e-01 903 2011 3 8.96362e+00 1.12233e+00 1152 2011 4 1.01981e+01 1.01503e+00 951 2011 5 9.02784e+00 4.88109e-01 809 2011 6 9.77380e+00 1.02310e+00 640 2011 7 9.90298e+00 8.39511e-01 479 2011 8 9.19201e+00 7.50225e-01 429 2011 9 5.73978e+00 8.37079e-01 344 2011 10 4.34142e+00 1.80404e+00 768 2011 11 6.12293e+00 1.25807e+00 1134 2011 12 7.07703e+00 1.23766e+00 1464 2012 1 7.97578e+00 1.68615e+00 960 2012 2 8.48346e+00 1.08895e+00 768 2012 3 8.48723e+00 9.30273e-01 1133 2012 4 9.11905e+00 1.57299e+00 752 2012 5 8.75629e+00 6.15512e-01 512 2012 6 7.34515e+00 8.50303e-01 250 2012 7 7.82191e+00 1.26970e+00 534 2012 8 9.08308e+00 7.15405e-01 293 2012 9 7.12594e+00 1.35663e+00 533 2012 10 6.47579e+00 1.60622e+00 878 2012 11 7.10884e+00 1.28856e+00 816 2012 12 5.63412e+00 2.08936e+00 652 2013 1 6.55426e+00 1.42113e+00 983 2013 2 6.52470e+00 1.90054e+00 960 2013 3 6.51166e+00 1.46919e+00 832 2013 4 9.77169e+00 9.77338e-01 635 2013 5 7.92733e+00 1.98324e+00 768 2013 6 1.05147e+01 1.44344e+00 576 2013 7 8.01511e+00 1.54277e+00 371 2013 8 8.19849e+00 1.20901e+00 576 2013 9 5.78237e+00 1.07500e+00 741 2013 10 6.02703e+00 1.10465e+00 1020 2013 11 7.48236e+00 3.53626e-01 320 2013 12 6.86875e+00 8.28108e-01 640 2014 1 4.66813e+00 1.57348e+00 768 2014 2 6.60119e+00 9.97263e-01 848 2014 3 6.55532e+00 9.28341e-01 768 2014 4 8.04434e+00 1.95761e+00 582 2014 5 9.07008e+00 6.84704e-01 697 2014 6 9.28087e+00 1.20418e+00 591 2014 7 9.37929e+00 7.59785e-01 351 2014 8 7.22903e+00 1.18872e+00 510 2014 9 5.59102e+00 8.66989e-01 396 2014 10 8.62167e+00 6.49302e-01 960 2014 11 5.93865e+00 8.77388e-01 960 2014 12 6.76055e+00 5.22323e-01 756 2015 1 5.70416e+00 2.00075e+00 653 2015 2 5.56075e+00 8.75533e-01 712 2015 3 7.89850e+00 8.68833e-01 1205 2015 4 9.19185e+00 1.45739e+00 448 2015 5 8.40190e+00 9.02845e-01 1046 2015 6 9.17552e+00 8.16041e-01 640 2015 7 8.04446e+00 6.42965e-01 134 2015 8 7.41577e+00 1.18616e+00 478 2015 9 7.85858e+00 7.71108e-01 296 2015 10 6.14637e+00 7.38885e-01 640 2015 11 5.77589e+00 8.34272e-01 961 2015 12 5.22627e+00 9.57782e-01 388 2016 1 4.09412e+00 2.07553e+00 346 2016 2 4.12480e+00 1.17926e+00 1024 2016 3 7.39322e+00 1.72309e+00 672 2016 4 8.18887e+00 1.48109e+00 870 2016 5 9.01552e+00 1.22565e+00 811 2016 6 9.93334e+00 6.38014e-01 512 2016 7 9.52266e+00 1.45366e+00 449 2016 8 8.56688e+00 1.68404e+00 642 2016 9 6.95230e+00 1.85656e+00 782 2016 10 7.18230e+00 1.24882e+00 1082 2016 11 8.06754e+00 1.04180e+00 1077 2016 12 8.57438e+00 1.04722e+00 989 2017 1 6.26263e+00 2.79310e+00 942 2017 2 6.22233e+00 9.78015e-01 957 2017 3 8.45302e+00 8.09396e-01 1199 2017 4 8.54667e+00 6.00323e-01 704 2017 5 7.49537e+00 1.02092e+00 704 2017 6 9.07519e+00 1.30600e+00 280 2017 7 9.32062e+00 1.87162e+00 396 2017 8 7.24899e+00 1.88184e+00 636 2017 9 4.53471e+00 1.88294e+00 774 2017 10 3.95787e+00 1.16279e+00 832 2017 11 5.87626e+00 8.32087e-01 1146 2017 12 6.36376e+00 1.39887e+00 1032 2018 1 5.41759e+00 1.26576e+00 670 2018 2 7.82070e+00 1.00740e+00 823 2018 3 8.51493e+00 1.96606e+00 1211 2018 4 9.15148e+00 1.16640e+00 1082 2018 5 1.03920e+01 7.92861e-01 393 2018 6 8.11069e+00 1.53919e+00 397 2018 7 7.77852e+00 2.61579e+00 576 2018 8 8.67032e+00 1.47015e+00 768 2018 9 4.69756e+00 2.19989e+00 877 2018 10 6.18890e+00 2.53196e+00 895 2018 11 2.93124e+00 1.55130e+00 396 2018 12 4.70488e+00 1.09602e+00 405 2019 1 5.25279e+00 1.74524e+00 644 2019 2 7.17922e+00 1.30138e+00 822 2019 3 9.17065e+00 1.19836e+00 784 2019 4 9.10146e+00 1.69859e+00 767 2019 5 1.01992e+01 7.13876e-01 704 2019 6 1.03570e+01 1.48533e+00 476 2019 7 8.55803e+00 1.42716e+00 640 2019 8 6.42641e+00 2.99741e+00 210 2019 9 7.90306e+00 9.50726e-01 668 2019 10 7.26294e+00 1.21915e+00 963 2019 11 5.65512e+00 5.36228e-01 638 2019 12 5.55347e+00 7.77104e-01 414 2020 1 6.78344e+00 1.42732e+00 963 2020 2 7.24378e+00 1.42187e+00 668 2020 3 9.79783e+00 1.61404e+00 1017 2020 4 1.01017e+01 1.43087e+00 448 2020 5 9.70930e+00 1.18730e+00 681 2020 6 8.81588e+00 5.95091e-01 512 2020 7 8.49029e+00 1.03157e+00 485 2020 8 9.00711e+00 5.18165e-01 313 2020 9 5.95252e+00 1.15533e+00 512 2020 10 4.31972e+00 1.50132e+00 568 2020 11 4.05928e+00 1.31559e+00 764 2020 12 4.74512e+00 5.22840e-01 768 2021 1 6.32474e+00 1.01497e+00 768 2021 2 7.09400e+00 2.05433e+00 572 2021 3 9.89005e+00 6.99228e-01 836 2021 4 9.32247e+00 7.59530e-01 906 2021 5 8.25119e+00 1.04472e+00 983 2021 6 8.50582e+00 3.93441e-01 192 2021 7 7.37969e+00 1.18524e+00 459 2021 8 6.74539e+00 1.82210e+00 514 2021 9 3.76449e+00 1.03795e+00 601 2021 10 4.30119e+00 1.34486e+00 717 2021 11 6.14872e+00 2.09987e+00 768 2021 12 6.96480e+00 1.56847e+00 1105 2022 1 5.19936e+00 1.66997e+00 801 2022 2 7.03118e+00 1.63157e+00 899 2022 3 8.06778e+00 1.38133e+00 898 2022 4 1.06011e+01 6.41309e-01 384 2022 5 1.12185e+01 7.60681e-01 840 2022 6 9.92047e+00 8.03501e-01 384 2022 7 8.65927e+00 8.59358e-01 587 2022 8 5.77914e+00 5.39274e-01 505 2022 9 5.90518e+00 7.31075e-01 432 2022 10 5.24973e+00 1.90632e+00 1016 2022 11 4.30690e+00 1.01038e+00 631 2022 12 5.37182e+00 1.02401e+00 896 2023 1 7.90142e+00 1.44981e+00 1026 2023 2 8.08642e+00 2.15109e+00 1148 2023 3 8.40846e+00 1.34560e+00 1055 2023 4 9.84627e+00 1.31542e+00 512 2023 5 8.73057e+00 1.14884e+00 854 2023 6 6.40507e+00 1.35854e+00 518 2023 7 6.59465e+00 8.68385e-01 574 2023 8 5.21658e+00 8.85132e-01 497 2023 9 6.50792e+00 1.67705e+00 960 2023 10 6.99128e+00 1.85006e+00 768 2023 11 7.88593e+00 1.88686e+00 809 2023 12 6.74464e+00 2.49449e+00 423 2024 1 6.21764e+00 1.58425e+00 498 2024 2 7.28554e+00 1.56020e+00 730 2024 3 8.90061e+00 1.33034e+00 755 2024 4 nan nan 0