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 4.08536e+00 5.28945e-01 64 2002 8 3.08850e+00 9.55524e-01 547 2002 9 4.91822e+00 1.92126e+00 512 2002 10 3.53005e+00 1.28397e+00 972 2002 11 3.74209e+00 1.02070e+00 741 2002 12 3.73955e+00 7.81272e-01 768 2003 1 4.92063e+00 1.90259e+00 901 2003 2 3.24543e+00 8.22878e-01 549 2003 3 2.49603e+00 5.08103e-01 190 2003 4 2.31116e+00 5.39065e-01 762 2003 5 2.25406e+00 8.29956e-01 451 2003 6 3.13600e+00 9.21314e-01 279 2003 7 5.81075e+00 4.38610e+00 322 2003 8 3.76201e+00 2.48686e+00 252 2003 9 4.08501e+00 1.56348e+00 576 2003 10 4.43103e+00 2.00202e+00 640 2003 11 3.34914e+00 8.16352e-01 1042 2003 12 3.52530e+00 6.22225e-01 577 2004 1 5.19753e+00 1.28557e+00 863 2004 2 3.64807e+00 9.74732e-01 448 2004 3 2.70579e+00 7.57218e-01 802 2004 4 1.72644e+00 2.70160e-01 512 2004 5 1.83890e+00 3.33788e-01 514 2004 6 2.33975e+00 1.52991e+00 496 2004 7 5.01993e+00 3.07795e+00 447 2004 8 5.36023e+00 3.53416e+00 346 2004 9 5.40868e+00 1.41705e+00 256 2004 10 5.83641e+00 3.78158e+00 959 2004 11 4.48212e+00 1.21904e+00 788 2004 12 3.43653e+00 7.27035e-01 393 2005 1 4.94250e+00 1.50112e+00 704 2005 2 6.97460e+00 2.53059e+00 704 2005 3 6.45754e+00 3.15425e+00 441 2005 4 3.44448e+00 1.03697e+00 639 2005 5 3.36233e+00 1.63803e+00 640 2005 6 4.18357e+00 2.65053e+00 292 2005 7 7.30070e+00 8.02379e+00 512 2005 8 7.37993e+00 7.36527e+00 548 2005 9 9.27062e+00 5.14578e+00 449 2005 10 6.38057e+00 4.53687e+00 680 2005 11 4.93473e+00 1.50122e+00 900 2005 12 3.83340e+00 5.82327e-01 824 2006 1 3.31538e+00 4.52271e-01 466 2006 2 2.56472e+00 3.41963e-01 768 2006 3 1.70364e+00 2.86487e-01 960 2006 4 1.38406e+00 3.93730e-01 660 2006 5 1.36326e+00 2.88008e-01 557 2006 6 2.67890e+00 8.26236e-01 508 2006 7 1.97407e+00 4.63968e-01 277 2006 8 3.94087e+00 2.63683e+00 379 2006 9 8.16193e+00 3.85891e+00 645 2006 10 8.02586e+00 2.67839e+00 1100 2006 11 4.28701e+00 1.78543e+00 744 2006 12 2.52531e+00 4.83929e-01 440 2007 1 2.22016e+00 4.36409e-01 488 2007 2 1.53450e+00 2.41407e-01 454 2007 3 1.61981e+00 4.49665e-01 960 2007 4 1.61907e+00 3.91632e-01 688 2007 5 1.73182e+00 4.19728e-01 505 2007 6 2.07663e+00 5.41923e-01 336 2007 7 2.81275e+00 5.83656e-01 429 2007 8 3.39630e+00 6.79270e-01 578 2007 9 3.12183e+00 1.13343e+00 787 2007 10 3.29286e+00 8.62683e-01 763 2007 11 3.01275e+00 7.94111e-01 1024 2007 12 2.78307e+00 7.49112e-01 1116 2008 1 2.29805e+00 3.16477e-01 576 2008 2 1.66043e+00 4.00707e-01 720 2008 3 2.08468e+00 3.34800e-01 350 2008 4 1.88543e+00 4.95632e-01 766 2008 5 2.32886e+00 4.34974e-01 567 2008 6 2.71395e+00 5.13993e-01 614 2008 7 2.76328e+00 3.70895e-01 289 2008 8 2.87701e+00 1.12798e+00 372 2008 9 3.12497e+00 1.21725e+00 609 2008 10 3.37117e+00 8.26718e-01 986 2008 11 3.43160e+00 6.08515e-01 1216 2008 12 2.77173e+00 2.85159e-01 989 2009 1 2.25197e+00 2.70573e-01 840 2009 2 2.35992e+00 2.44200e-01 640 2009 3 2.02175e+00 4.21931e-01 916 2009 4 1.69273e+00 7.68996e-01 512 2009 5 1.45681e+00 3.45702e-01 491 2009 6 1.83403e+00 4.77056e-01 443 2009 7 4.97468e+00 1.37392e+00 272 2009 8 2.94374e+00 6.27401e-01 522 2009 9 3.59572e+00 1.24584e+00 703 2009 10 4.38364e+00 1.91249e+00 1011 2009 11 4.19068e+00 2.06465e+00 640 2009 12 2.69802e+00 3.20875e-01 204 2010 1 2.70698e+00 2.89993e-01 636 2010 2 2.55447e+00 3.18027e-01 273 2010 3 3.24976e+00 8.22304e-01 709 2010 4 2.29855e+00 6.29456e-01 832 2010 5 1.53241e+00 3.48307e-01 586 2010 6 2.15207e+00 6.09241e-01 559 2010 7 2.88934e+00 5.88927e-01 128 2010 8 4.35670e+00 1.21077e+00 406 2010 9 2.91196e+00 6.09289e-01 767 2010 10 2.18182e+00 5.03254e-01 1472 2010 11 2.42924e+00 3.84489e-01 1218 2010 12 2.39816e+00 4.43146e-01 791 2011 1 2.18269e+00 2.86994e-01 652 2011 2 1.50449e+00 4.78094e-01 828 2011 3 1.23061e+00 3.21303e-01 1090 2011 4 1.37037e+00 3.50347e-01 896 2011 5 1.85368e+00 4.57817e-01 824 2011 6 2.32079e+00 3.83708e-01 512 2011 7 3.02899e+00 5.78259e-01 320 2011 8 3.17363e+00 1.03670e+00 262 2011 9 3.89575e+00 6.36710e-01 194 2011 10 4.05165e+00 8.39508e-01 741 2011 11 2.39348e+00 3.86978e-01 1024 2011 12 1.86271e+00 2.52722e-01 1216 2012 1 1.74099e+00 2.68941e-01 853 2012 2 1.55747e+00 2.82937e-01 595 2012 3 1.46909e+00 4.87853e-01 1180 2012 4 1.70009e+00 3.73787e-01 698 2012 5 1.61670e+00 1.98240e-01 406 2012 6 2.49422e+00 9.32564e-01 178 2012 7 4.33627e+00 1.51058e+00 349 2012 8 4.77663e+00 1.66095e+00 314 2012 9 4.40715e+00 7.05254e-01 436 2012 10 3.40058e+00 1.25476e+00 614 2012 11 3.82944e+00 8.27240e-01 837 2012 12 4.84518e+00 4.39680e+00 673 2013 1 3.14430e+00 6.15184e-01 1020 2013 2 2.53773e+00 2.46238e-01 849 2013 3 2.37396e+00 3.46220e-01 576 2013 4 2.19787e+00 4.58581e-01 575 2013 5 1.92675e+00 3.92347e-01 760 2013 6 3.13278e+00 1.47175e+00 407 2013 7 5.51773e+00 1.72688e+00 320 2013 8 3.66797e+00 1.86489e+00 520 2013 9 4.38116e+00 2.34085e+00 956 2013 10 4.81165e+00 3.48102e+00 943 2013 11 3.76975e+00 1.21259e+00 352 2013 12 3.32074e+00 4.96812e-01 582 2014 1 3.57051e+00 1.41358e+00 595 2014 2 3.04386e+00 5.37104e-01 882 2014 3 2.58511e+00 3.13596e-01 640 2014 4 1.94211e+00 3.84755e-01 619 2014 5 2.11492e+00 5.68947e-01 704 2014 6 2.35648e+00 6.40733e-01 638 2014 7 2.81184e+00 1.18801e+00 449 2014 8 4.60346e+00 1.39546e+00 631 2014 9 3.92545e+00 1.12371e+00 208 2014 10 5.01374e+00 1.72127e+00 1124 2014 11 3.60404e+00 8.14815e-01 1016 2014 12 3.43814e+00 9.78943e-01 733 2015 1 2.72451e+00 3.76476e-01 680 2015 2 2.30372e+00 1.73919e-01 678 2015 3 1.73045e+00 4.86737e-01 1088 2015 4 1.41224e+00 4.69299e-01 549 2015 5 2.42759e+00 9.71563e-01 768 2015 6 1.91929e+00 4.57168e-01 469 2015 7 6.23334e+00 2.10136e+00 285 2015 8 4.12284e+00 1.98710e+00 456 2015 9 5.83672e+00 4.12206e+00 521 2015 10 4.46637e+00 2.07698e+00 723 2015 11 4.95312e+00 1.82371e+00 981 2015 12 3.14242e+00 6.73351e-01 530 2016 1 4.38499e+00 1.43923e+00 405 2016 2 3.04608e+00 8.50756e-01 725 2016 3 2.30047e+00 4.37741e-01 511 2016 4 2.46039e+00 5.18311e-01 539 2016 5 1.76858e+00 2.87788e-01 896 2016 6 2.26497e+00 6.22259e-01 390 2016 7 3.98475e+00 1.67929e+00 377 2016 8 4.15975e+00 1.09330e+00 594 2016 9 4.67674e+00 1.94820e+00 851 2016 10 4.46323e+00 2.11461e+00 963 2016 11 2.49949e+00 7.15186e-01 931 2016 12 2.98879e+00 9.88514e-01 1028 2017 1 2.21403e+00 5.48683e-01 728 2017 2 2.24088e+00 4.49269e-01 1115 2017 3 1.78654e+00 3.61557e-01 992 2017 4 1.72900e+00 2.34621e-01 724 2017 5 1.94946e+00 4.29857e-01 558 2017 6 2.70027e+00 3.67715e-01 384 2017 7 5.09677e+00 2.69389e+00 276 2017 8 5.85804e+00 2.36068e+00 642 2017 9 4.80902e+00 1.20142e+00 868 2017 10 4.94995e+00 1.80676e+00 672 2017 11 3.33099e+00 1.19230e+00 871 2017 12 2.74426e+00 4.94957e-01 1037 2018 1 3.92208e+00 4.80688e-01 766 2018 2 2.90660e+00 7.68753e-01 704 2018 3 2.19839e+00 3.41057e-01 1069 2018 4 1.85622e+00 3.93574e-01 957 2018 5 1.48329e+00 4.34072e-01 448 2018 6 1.75650e+00 6.50527e-01 320 2018 7 2.98765e+00 7.84890e-01 470 2018 8 8.02670e+00 5.43903e+00 713 2018 9 9.63510e+00 1.35811e+01 670 2018 10 9.45676e+00 6.78979e+00 1133 2018 11 1.83143e+01 1.58703e+01 475 2018 12 2.65244e+00 4.00791e-01 668 2019 1 2.61413e+00 3.92475e-01 659 2019 2 2.40357e+00 3.78167e-01 832 2019 3 1.69855e+00 3.25304e-01 878 2019 4 1.77713e+00 3.14464e-01 444 2019 5 1.35130e+00 3.46865e-01 843 2019 6 1.97175e+00 3.43784e-01 444 2019 7 3.26015e+00 9.88046e-01 542 2019 8 4.62352e+00 2.86070e+00 336 2019 9 4.32237e+00 3.55476e+00 773 2019 10 2.63802e+00 7.87554e-01 777 2019 11 3.67448e+00 9.27336e-01 477 2019 12 2.46884e+00 1.78398e-01 192 2020 1 2.30889e+00 2.41194e-01 768 2020 2 2.16127e+00 3.10237e-01 515 2020 3 1.46852e+00 3.49313e-01 711 2020 4 1.69129e+00 4.02598e-01 443 2020 5 1.64095e+00 3.25561e-01 762 2020 6 2.48977e+00 6.38039e-01 448 2020 7 2.51811e+00 3.46227e-01 128 2020 8 4.79007e+00 1.76864e+00 310 2020 9 5.09808e+00 1.60259e+00 356 2020 10 4.60372e+00 1.18377e+00 585 2020 11 4.17948e+00 1.08371e+00 773 2020 12 3.30433e+00 5.20856e-01 768 2021 1 3.12428e+00 5.78311e-01 512 2021 2 2.09271e+00 2.75561e-01 514 2021 3 1.82582e+00 2.92013e-01 832 2021 4 1.99719e+00 3.47128e-01 750 2021 5 2.53447e+00 5.13866e-01 746 2021 6 2.23608e+00 8.19758e-01 251 2021 7 5.53357e+00 2.90477e+00 413 2021 8 5.46457e+00 2.31540e+00 510 2021 9 9.76707e+00 5.60161e+00 611 2021 10 7.80026e+00 4.12464e+00 1158 2021 11 4.46810e+00 1.32789e+00 882 2021 12 4.16846e+00 9.64748e-01 891 2022 1 3.28301e+00 5.15694e-01 639 2022 2 2.80471e+00 3.77631e-01 1149 2022 3 1.99479e+00 4.08073e-01 798 2022 4 2.38744e+00 7.13305e-01 320 2022 5 1.99756e+00 6.03613e-01 614 2022 6 2.05440e+00 6.52638e-01 301 2022 7 3.02726e+00 6.85512e-01 469 2022 8 5.09900e+00 1.75057e+00 269 2022 9 6.02518e+00 4.92993e+00 514 2022 10 4.74575e+00 2.10821e+00 1008 2022 11 3.96088e+00 1.21251e+00 646 2022 12 1.03960e+01 6.71472e+00 650 2023 1 3.47278e+00 1.48102e+00 951 2023 2 2.96635e+00 6.42812e-01 960 2023 3 2.67319e+00 7.04797e-01 896 2023 4 1.98496e+00 7.63419e-01 431 2023 5 2.15205e+00 5.58747e-01 504 2023 6 3.94140e+00 8.37440e-01 496 2023 7 3.85645e+00 9.83667e-01 404 2023 8 3.61395e+00 7.32353e-01 314 2023 9 4.70831e+00 1.33718e+00 792 2023 10 3.65586e+00 8.12794e-01 621 2023 11 4.30944e+00 2.79353e+00 693 2023 12 2.67889e+00 2.37709e-01 328 2024 1 2.68313e+00 2.75761e-01 493 2024 2 2.49634e+00 3.78724e-01 704 2024 3 1.92651e+00 2.89587e-01 457 2024 4 nan nan 0