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 1.51887e+00 6.82589e-01 271 2002 8 1.46418e+00 3.61304e-01 510 2002 9 1.74008e+00 5.65723e-01 565 2002 10 1.60966e+00 6.17821e-01 676 2002 11 1.69021e+00 5.91844e-01 784 2002 12 1.35725e+00 8.16540e-01 640 2003 1 1.66077e+00 5.02117e-01 896 2003 2 1.56617e+00 4.88913e-01 519 2003 3 1.32409e+01 1.15904e+01 137 2003 4 6.13895e+00 2.50969e+00 64 2003 5 7.07635e+00 7.96186e+00 271 2003 6 4.07579e+00 4.22483e+00 366 2003 7 3.97205e+00 2.58416e+00 192 2003 8 4.57783e+00 4.17670e+00 388 2003 9 3.03417e+00 3.66359e+00 497 2003 10 3.64210e+00 2.02642e+00 952 2003 11 2.66380e+00 3.21577e+00 921 2003 12 1.44557e+00 7.48291e-01 896 2004 1 2.30697e+00 2.23029e+00 832 2004 2 1.36505e+00 4.22612e-01 435 2004 3 2.79654e+00 1.74632e+00 769 2004 4 1.14174e+00 4.35754e-01 448 2004 5 1.00730e+00 4.37025e-01 640 2004 6 1.73652e+00 1.08744e+00 532 2004 7 2.21854e+00 8.55447e-01 444 2004 8 2.46596e+00 1.16752e+00 459 2004 9 3.07635e+00 1.82381e+00 365 2004 10 9.40123e+00 4.65830e+00 183 2004 11 1.78685e+01 1.04378e+01 328 2004 12 1.00836e+01 8.73163e+00 569 2005 1 7.10055e+00 6.95725e+00 802 2005 2 5.38631e+00 3.73183e+00 641 2005 3 2.53762e+00 7.38151e-01 515 2005 4 4.84749e+00 2.39885e+00 433 2005 5 4.59602e+00 2.96964e+00 221 2005 6 4.86179e+00 5.16328e+00 317 2005 7 4.16873e+00 2.96786e+00 512 2005 8 1.19357e+01 1.08175e+01 151 2005 9 4.98601e+00 2.92632e+00 305 2005 10 3.51114e+00 3.72297e+00 1075 2005 11 2.31306e+00 2.22925e+00 1059 2005 12 1.67372e+00 9.54816e-01 1062 2006 1 4.16269e+00 2.25831e+00 768 2006 2 3.82877e+00 4.22933e+00 730 2006 3 4.11881e+00 2.01216e+00 1100 2006 4 3.88710e+00 6.89088e+00 441 2006 5 9.68423e-01 4.01940e-01 566 2006 6 1.50421e+00 6.12063e-01 432 2006 7 1.89879e+00 7.17404e-01 426 2006 8 1.92653e+00 5.47949e-01 380 2006 9 1.61625e+00 7.60997e-01 832 2006 10 1.58946e+00 8.06816e-01 918 2006 11 1.16443e+00 3.75827e-01 952 2006 12 8.23467e-01 3.03269e-01 464 2007 1 6.83515e-01 3.82944e-01 384 2007 2 5.83561e-01 2.70000e-01 698 2007 3 7.42869e-01 4.39570e-01 1151 2007 4 8.44919e-01 5.50658e-01 641 2007 5 4.98407e-01 1.20178e-01 329 2007 6 1.00909e+00 2.47047e-01 448 2007 7 1.23164e+00 4.66849e-01 408 2007 8 1.60813e+00 4.88957e-01 584 2007 9 2.35873e+00 6.59952e-01 579 2007 10 1.76945e+00 7.69022e-01 717 2007 11 1.17940e+00 1.01631e+00 1024 2007 12 1.73442e+00 1.10943e+00 896 2008 1 7.91608e-01 6.14705e-01 601 2008 2 1.16134e+00 7.01093e-01 879 2008 3 5.53798e+00 6.16825e+00 749 2008 4 3.62900e+00 3.92105e+00 659 2008 5 3.21080e+00 1.13212e+00 528 2008 6 3.13990e+00 1.66001e+00 436 2008 7 2.18046e+00 9.72133e-01 418 2008 8 2.30142e+00 1.57592e+00 320 2008 9 5.10124e+00 5.98680e+00 747 2008 10 3.95899e+00 3.14599e+00 947 2008 11 1.13592e+00 4.16823e-01 1076 2008 12 4.18208e+00 6.39415e+00 947 2009 1 2.03120e+00 6.00098e-01 799 2009 2 1.49844e+00 3.59199e-01 1012 2009 3 1.16172e+00 4.09562e-01 1048 2009 4 3.46542e+00 4.06641e+00 528 2009 5 6.46317e+00 7.34609e+00 330 2009 6 1.59559e+00 5.37888e-01 506 2009 7 2.29336e+00 2.14487e+00 192 2009 8 3.72985e+00 2.26585e+00 620 2009 9 3.41356e+00 3.72873e+00 920 2009 10 1.74701e+00 1.22132e+00 825 2009 11 1.13847e+00 5.71421e-01 768 2009 12 1.06840e+00 5.26762e-01 227 2010 1 2.00546e+00 6.91689e-01 960 2010 2 3.01355e+00 9.73729e-01 768 2010 3 4.74329e+00 2.99697e+00 925 2010 4 5.92153e+00 5.60563e+00 221 2010 5 2.69399e+00 2.06361e+00 519 2010 6 2.03057e+00 7.58449e-01 576 2010 7 2.04120e+00 9.81634e-01 439 2010 8 3.69086e+00 2.23566e+00 226 2010 9 2.44609e+00 1.09399e+00 640 2010 10 1.13539e+00 3.94571e-01 1525 2010 11 1.13175e+00 5.67687e-01 1259 2010 12 1.00062e+00 5.70168e-01 1050 2011 1 7.34475e-01 3.18125e-01 649 2011 2 4.94358e-01 1.05855e-01 739 2011 3 5.34193e-01 1.93883e-01 813 2011 4 6.27394e-01 2.22532e-01 887 2011 5 8.09271e-01 3.05664e-01 871 2011 6 8.76132e-01 3.42942e-01 256 2011 7 1.71005e+00 6.79669e-01 337 2011 8 1.36720e+00 5.11298e-01 439 2011 9 1.54662e+00 5.16631e-01 736 2011 10 1.00425e+00 5.04959e-01 1015 2011 11 6.90182e-01 3.46848e-01 1236 2011 12 5.92366e-01 1.87300e-01 1024 2012 1 5.90693e-01 2.75348e-01 896 2012 2 5.89849e-01 1.23801e-01 256 2012 3 6.08908e-01 3.14872e-01 825 2012 4 7.00128e-01 2.35023e-01 912 2012 5 1.02719e+00 4.09658e-01 446 2012 6 1.31517e+00 3.44371e-01 160 2012 7 2.17590e+00 1.06145e+00 448 2012 8 8.80252e+00 5.43634e+00 292 2012 9 1.04047e+01 8.53813e+00 526 2012 10 6.03229e+00 2.77635e+00 640 2012 11 3.59044e+00 3.31003e+00 887 2012 12 3.32563e+00 1.42630e+00 782 2013 1 1.45560e+00 6.40453e-01 622 2013 2 1.08905e+00 2.88598e-01 602 2013 3 1.17964e+00 5.48262e-01 697 2013 4 6.20691e+00 4.49906e+00 577 2013 5 3.24146e+00 1.80851e+00 575 2013 6 4.21076e+00 2.53923e+00 390 2013 7 1.25390e+01 2.99440e+00 48 2013 8 9.59713e+00 7.12031e+00 313 2013 9 1.02499e+01 6.58676e+00 477 2013 10 4.47522e+00 2.77077e+00 891 2013 11 5.98772e+00 4.75819e+00 383 2013 12 2.03153e+00 1.16509e+00 781 2014 1 1.46678e+00 2.31097e-01 504 2014 2 2.61576e+00 2.04159e+00 704 2014 3 6.23712e+00 5.40830e+00 524 2014 4 8.43309e+00 6.32042e+00 317 2014 5 1.16652e+01 5.31397e+00 128 2014 6 1.35785e+01 1.08639e+01 315 2014 7 6.47108e+00 3.67383e+00 629 2014 8 3.17345e+00 1.66620e+00 447 2014 9 7.02076e+00 8.32180e+00 441 2014 10 5.88482e+00 5.09147e+00 1103 2014 11 1.10358e+00 1.33826e+00 1020 2014 12 2.85435e+00 2.79844e+00 530 2015 1 3.77274e+00 7.43727e+00 856 2015 2 3.12638e+00 4.97944e+00 768 2015 3 7.64089e+00 4.55205e+00 395 2015 4 2.24485e+00 1.68541e+00 170 2015 5 2.32189e+00 2.45353e+00 712 2015 6 1.42168e+00 4.81152e-01 436 2015 7 2.19492e+00 1.45500e+00 203 2015 8 3.58795e+00 1.69889e+00 411 2015 9 5.62543e+00 3.96051e+00 265 2015 10 2.49258e+00 2.05572e+00 837 2015 11 3.16133e+00 1.20304e+00 766 2015 12 1.24908e+00 6.30298e-01 497 2016 1 1.67123e+00 8.71381e-01 639 2016 2 2.58450e+00 1.36478e+00 1168 2016 3 2.03900e+00 8.01433e-01 759 2016 4 2.95382e+00 1.64835e+00 480 2016 5 2.44215e+00 9.12222e-01 698 2016 6 1.54439e+00 5.91897e-01 543 2016 7 1.49367e+00 8.18134e-01 790 2016 8 2.50113e+00 2.17016e+00 700 2016 9 3.82675e+00 3.18425e+00 746 2016 10 1.53303e+00 6.51872e-01 958 2016 11 8.57377e-01 3.85839e-01 909 2016 12 9.05783e-01 3.38459e-01 764 2017 1 8.90839e-01 3.50778e-01 631 2017 2 3.02836e+00 1.60418e+00 960 2017 3 1.81793e+00 2.01923e+00 960 2017 4 8.90156e-01 2.59812e-01 798 2017 5 9.74198e-01 3.48486e-01 563 2017 6 1.46413e+00 3.08616e-01 151 2017 7 2.42933e+00 6.25911e-01 313 2017 8 3.91880e+00 2.29597e+00 638 2017 9 4.27379e+00 3.54268e+00 421 2017 10 9.30177e+00 7.01293e+00 317 2017 11 4.36665e+00 4.55618e+00 1143 2017 12 2.03697e+00 1.29024e+00 624 2018 1 9.47220e-01 2.75047e-01 692 2018 2 8.44412e-01 5.85205e-01 701 2018 3 7.77519e-01 2.83369e-01 941 2018 4 1.62952e+00 9.57189e-01 623 2018 5 1.09371e+00 3.89092e-01 482 2018 6 2.25824e+00 1.00581e+00 256 2018 7 5.22708e+00 4.52781e+00 214 2018 8 5.08086e+00 7.66958e+00 528 2018 9 3.56795e+00 2.88527e+00 956 2018 10 3.18066e+00 1.96320e+00 1034 2018 11 1.96066e+00 6.30448e-01 347 2018 12 6.02975e+00 6.50020e+00 714 2019 1 7.85030e+00 4.67266e+00 557 2019 2 7.44099e+00 4.81872e+00 217 2019 3 5.72097e+00 4.41595e+00 799 2019 4 5.45773e+00 6.43979e+00 369 2019 5 1.88188e+00 7.58942e-01 723 2019 6 2.05598e+00 3.55332e-01 102 2019 7 2.42795e+00 1.56528e+00 158 2019 8 4.92772e+00 3.34380e+00 510 2019 9 1.96135e+00 1.54125e+00 824 2019 10 2.29628e+00 9.81416e-01 648 2019 11 1.27226e+00 6.84401e-01 827 2019 12 1.38981e+00 6.03331e-01 627 2020 1 1.02496e+00 5.28539e-01 768 2020 2 1.23342e+00 5.52840e-01 589 2020 3 2.85412e+00 2.92051e+00 756 2020 4 1.93361e+00 8.91190e-01 501 2020 5 2.18744e+00 1.60903e+00 689 2020 6 2.33371e+00 1.27181e+00 457 2020 7 2.23569e+00 2.76870e+00 198 2020 8 4.21456e+00 3.31039e+00 253 2020 9 3.03513e+00 1.75453e+00 260 2020 10 3.83680e+00 2.76452e+00 690 2020 11 3.25557e+00 1.55776e+00 915 2020 12 1.37971e+00 5.89341e-01 832 2021 1 1.51540e+00 8.57617e-01 576 2021 2 3.44102e+00 1.11540e+00 510 2021 3 4.02046e+00 2.34381e+00 235 2021 4 4.96084e+00 3.19726e+00 596 2021 5 2.73065e+00 1.34615e+00 730 2021 6 1.57182e+00 7.47852e-01 192 2021 7 2.52443e+00 1.38029e+00 266 2021 8 4.09611e+00 2.79650e+00 329 2021 9 1.04497e+01 9.43213e+00 493 2021 10 1.00682e+01 8.46376e+00 541 2021 11 2.71790e+00 1.03926e+00 981 2021 12 2.50583e+00 1.42152e+00 638 2022 1 2.33842e+00 1.29401e+00 826 2022 2 1.95861e+00 9.37636e-01 957 2022 3 2.03950e+00 1.01069e+00 891 2022 4 5.18428e+00 3.39093e+00 119 2022 5 3.52691e+00 1.94772e+00 486 2022 6 3.48307e+00 2.86973e+00 400 2022 7 2.26267e+00 1.97065e+00 609 2022 8 2.80263e+00 1.55936e+00 503 2022 9 3.53669e+00 1.21671e+00 259 2022 10 1.52164e+00 1.39108e+00 1224 2022 11 2.64229e+00 1.84482e+00 448 2022 12 1.61544e+00 9.89384e-01 896 2023 1 9.17046e-01 3.08704e-01 992 2023 2 1.42886e+00 4.81803e-01 704 2023 3 2.33176e+00 7.99463e-01 749 2023 4 3.16462e+00 1.68666e+00 384 2023 5 2.07868e+00 6.17743e-01 383 2023 6 1.82602e+00 1.03981e+00 276 2023 7 5.76463e+00 4.91375e+00 544 2023 8 4.38841e+00 2.69164e+00 608 2023 9 3.40353e+00 2.26566e+00 450 2023 10 6.78708e+00 8.55850e+00 631 2023 11 1.17734e+00 3.80834e-01 737 2023 12 1.47063e+00 5.43200e-01 324 2024 1 9.86405e+00 8.13462e+00 538 2024 2 8.55291e+00 7.15686e+00 704 2024 3 5.78408e+00 6.25049e+00 474 2024 4 nan nan 0