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 6.13575e+01 3.66540e-01 320 2002 8 5.89783e+01 8.44353e-01 397 2002 9 5.26278e+01 1.11683e+00 154 2002 10 4.59945e+01 2.44209e+00 1056 2002 11 3.92747e+01 1.81937e+00 660 2002 12 3.45972e+01 4.07675e-01 624 2003 1 3.67688e+01 1.32131e+00 643 2003 2 4.36107e+01 2.25685e+00 930 2003 3 5.17207e+01 2.26340e+00 699 2003 4 5.81028e+01 1.04052e+00 609 2003 5 6.11819e+01 4.74956e-01 717 2003 6 6.18318e+01 1.06830e-01 384 2003 7 6.10088e+01 3.20304e-01 199 2003 8 5.91183e+01 9.98749e-01 478 2003 9 5.37580e+01 1.65338e+00 584 2003 10 4.61911e+01 2.23739e+00 767 2003 11 3.84142e+01 1.38752e+00 486 2003 12 3.44304e+01 2.01114e-01 474 2004 1 3.73200e+01 9.84062e-01 676 2004 2 4.34372e+01 2.54009e+00 729 2004 3 5.26376e+01 1.97104e+00 861 2004 4 5.82024e+01 1.20945e+00 607 2004 5 6.18747e+01 2.57181e-01 289 2004 6 6.19229e+01 1.53196e-01 506 2004 7 6.14402e+01 3.79612e-01 560 2004 8 5.84916e+01 1.11081e+00 760 2004 9 5.23990e+01 1.33115e+00 491 2004 10 4.45858e+01 2.22960e+00 739 2004 11 3.85556e+01 1.79391e+00 843 2004 12 3.46558e+01 3.10878e-01 602 2005 1 3.72071e+01 1.48612e+00 768 2005 2 4.29222e+01 1.61526e+00 647 2005 3 5.23956e+01 2.36334e+00 647 2005 4 5.83404e+01 1.08791e+00 564 2005 5 6.18000e+01 3.50559e-01 312 2005 6 6.18969e+01 1.13488e-01 348 2005 7 6.14624e+01 5.47352e-01 389 2005 8 5.90268e+01 1.26504e+00 621 2005 9 5.39683e+01 2.16488e+00 640 2005 10 4.59289e+01 2.44740e+00 619 2005 11 3.85073e+01 1.87449e+00 770 2005 12 3.47546e+01 3.54737e-01 771 2006 1 3.64760e+01 1.51718e+00 941 2006 2 4.43656e+01 2.31549e+00 606 2006 3 5.16242e+01 2.31148e+00 719 2006 4 5.85261e+01 1.30681e+00 910 2006 5 6.12406e+01 6.26860e-01 512 2006 6 6.19508e+01 1.35125e-01 651 2006 7 6.13383e+01 3.06929e-01 320 2006 8 5.92036e+01 1.06668e+00 338 2006 9 5.30137e+01 1.75983e+00 499 2006 10 4.55540e+01 2.28167e+00 600 2006 11 3.75376e+01 1.53372e+00 487 2006 12 3.43907e+01 2.39533e-01 210 2007 1 3.66041e+01 1.09241e+00 542 2007 2 4.47985e+01 2.52804e+00 448 2007 3 5.16784e+01 2.86440e+00 512 2007 4 5.84161e+01 1.43826e+00 424 2007 5 6.09726e+01 5.49850e-01 599 2007 6 6.19912e+01 1.53237e-01 448 2007 7 6.15709e+01 2.38910e-01 451 2007 8 5.98341e+01 8.22660e-01 403 2007 9 5.31968e+01 1.22709e+00 330 2007 10 4.51962e+01 2.29118e+00 400 2007 11 3.93354e+01 1.64606e+00 767 2007 12 3.45796e+01 3.73986e-01 745 2008 1 3.72144e+01 1.40274e+00 741 2008 2 4.32392e+01 2.39160e+00 830 2008 3 5.16744e+01 2.26388e+00 655 2008 4 5.81534e+01 1.36567e+00 640 2008 5 6.12955e+01 5.01802e-01 496 2008 6 6.19641e+01 1.19944e-01 479 2008 7 6.11612e+01 6.00558e-01 371 2008 8 5.95305e+01 8.96091e-01 383 2008 9 5.27983e+01 1.66481e+00 367 2008 10 4.65759e+01 2.26355e+00 391 2008 11 3.83686e+01 1.77350e+00 788 2008 12 3.45434e+01 2.69216e-01 709 2009 1 3.70821e+01 1.97633e+00 487 2009 2 4.40153e+01 1.77117e+00 692 2009 3 5.10915e+01 1.67526e+00 476 2009 4 5.83231e+01 1.40339e+00 421 2009 5 6.12361e+01 4.92222e-01 664 2009 6 6.18930e+01 4.79776e-02 371 2009 7 6.15079e+01 3.68606e-01 344 2009 8 5.87436e+01 9.53140e-01 316 2009 9 5.39620e+01 2.07385e+00 555 2009 10 4.60541e+01 2.46790e+00 504 2009 11 3.78384e+01 1.63447e+00 466 2009 12 3.46562e+01 2.71359e-01 711 2010 1 3.70447e+01 1.38726e+00 460 2010 2 4.47623e+01 2.39535e+00 320 2010 3 5.25044e+01 2.53355e+00 666 2010 4 5.83041e+01 1.40194e+00 459 2010 5 6.12915e+01 6.18627e-01 550 2010 6 6.18646e+01 9.44331e-02 304 2010 7 6.14504e+01 4.44410e-01 484 2010 8 5.88284e+01 1.15561e+00 493 2010 9 5.45481e+01 1.41836e+00 384 2010 10 4.64213e+01 2.26097e+00 712 2010 11 3.89894e+01 1.63064e+00 641 2010 12 3.47166e+01 3.99371e-01 741 2011 1 3.68222e+01 1.56640e+00 790 2011 2 4.39855e+01 2.39766e+00 1060 2011 3 5.25392e+01 2.53555e+00 705 2011 4 5.80762e+01 1.37906e+00 665 2011 5 6.13491e+01 6.64672e-01 584 2011 6 6.19545e+01 1.17160e-01 456 2011 7 6.12666e+01 3.81038e-01 582 2011 8 5.96005e+01 9.21081e-01 322 2011 9 5.41981e+01 1.69109e+00 626 2011 10 4.68924e+01 1.85038e+00 345 2011 11 3.88940e+01 1.92231e+00 967 2011 12 3.46065e+01 3.11080e-01 728 2012 1 3.68257e+01 1.38056e+00 788 2012 2 4.55554e+01 1.19354e+00 441 2012 3 5.11306e+01 2.40618e+00 505 2012 4 5.75505e+01 1.33268e+00 460 2012 5 6.13033e+01 6.05406e-01 388 2012 6 6.20034e+01 1.58151e-01 269 2012 7 6.08805e+01 5.39157e-01 101 2012 8 5.97052e+01 6.56231e-01 415 2012 9 5.39758e+01 1.48531e+00 411 2012 10 4.57671e+01 1.54380e+00 439 2012 11 3.86215e+01 1.95502e+00 863 2012 12 3.46146e+01 3.42400e-01 710 2013 1 3.71817e+01 1.68431e+00 792 2013 2 4.34507e+01 2.46661e+00 550 2013 3 5.25724e+01 2.46807e+00 546 2013 4 5.83554e+01 1.27560e+00 576 2013 5 6.14357e+01 4.89528e-01 627 2013 6 6.18386e+01 9.03139e-02 320 2013 7 6.10529e+01 3.78337e-01 320 2013 8 5.80273e+01 1.19180e+00 229 2013 9 5.21077e+01 1.56800e+00 383 2013 10 4.54077e+01 2.22405e+00 883 2013 11 3.88141e+01 2.34792e+00 612 2013 12 3.48716e+01 4.62194e-01 473 2014 1 3.74942e+01 1.64846e+00 639 2014 2 4.37080e+01 1.91080e+00 714 2014 3 5.14234e+01 2.06482e+00 747 2014 4 5.83257e+01 1.58121e+00 408 2014 5 6.12121e+01 5.41011e-01 445 2014 6 6.18264e+01 8.66509e-02 320 2014 7 6.13941e+01 5.42870e-01 485 2014 8 5.93483e+01 9.55998e-01 641 2014 9 5.40158e+01 6.90474e-01 181 2014 10 4.61299e+01 2.04832e+00 660 2014 11 3.82985e+01 1.94080e+00 838 2014 12 3.46994e+01 3.17516e-01 662 2015 1 3.77482e+01 1.51981e+00 696 2015 2 4.40194e+01 1.66773e+00 337 2015 3 5.08583e+01 1.75432e+00 888 2015 4 5.77244e+01 1.27223e+00 539 2015 5 6.13973e+01 4.95086e-01 640 2015 6 6.18611e+01 7.23515e-02 448 2015 7 6.13087e+01 5.55432e-01 185 2015 8 5.95281e+01 5.19951e-01 411 2015 9 5.55948e+01 1.57186e+00 384 2015 10 4.61682e+01 1.77157e+00 397 2015 11 3.83018e+01 1.89771e+00 621 2015 12 3.45459e+01 4.10628e-01 368 2016 1 3.60981e+01 1.47113e+00 174 2016 2 4.40611e+01 2.45814e+00 598 2016 3 5.21353e+01 2.00064e+00 448 2016 4 5.83121e+01 1.33566e+00 576 2016 5 6.12887e+01 5.13793e-01 830 2016 6 6.18909e+01 9.70420e-02 517 2016 7 6.13024e+01 5.18471e-01 408 2016 8 5.91172e+01 8.57059e-01 335 2016 9 5.34417e+01 1.76632e+00 472 2016 10 4.59255e+01 1.74159e+00 606 2016 11 3.79378e+01 1.46565e+00 852 2016 12 3.45553e+01 3.07207e-01 563 2017 1 3.75147e+01 1.45443e+00 903 2017 2 4.37727e+01 2.33232e+00 1155 2017 3 5.20400e+01 2.14858e+00 512 2017 4 5.86530e+01 1.63336e+00 324 2017 5 6.13096e+01 5.90816e-01 765 2017 6 6.18013e+01 8.56186e-02 320 2017 7 6.14642e+01 3.78943e-01 500 2017 8 5.87998e+01 1.06902e+00 245 2017 9 5.40847e+01 1.31324e+00 387 2017 10 4.60685e+01 2.87206e+00 262 2017 11 3.86565e+01 2.03762e+00 1006 2017 12 3.45850e+01 3.36019e-01 974 2018 1 3.74102e+01 1.84053e+00 485 2018 2 4.34587e+01 2.15484e+00 808 2018 3 5.22059e+01 2.70298e+00 516 2018 4 5.81036e+01 1.48997e+00 834 2018 5 6.06541e+01 2.89420e-01 254 2018 6 6.18822e+01 1.68730e-01 418 2018 7 6.15412e+01 3.69875e-01 634 2018 8 5.86564e+01 5.44426e-01 281 2018 9 5.35131e+01 1.46454e+00 480 2018 10 4.49231e+01 2.25130e+00 764 2018 11 3.89301e+01 1.41911e+00 432 2018 12 3.46968e+01 3.30163e-01 882 2019 1 3.65413e+01 1.03063e+00 612 2019 2 4.44294e+01 2.31649e+00 818 2019 3 5.18143e+01 2.69008e+00 953 2019 4 5.83235e+01 1.21116e+00 696 2019 5 6.13441e+01 5.40995e-01 637 2019 6 6.19763e+01 1.39319e-01 781 2019 7 6.10734e+01 4.11112e-01 486 2019 8 5.94608e+01 1.11972e+00 362 2019 9 5.44063e+01 1.34126e+00 448 2019 10 4.49023e+01 1.97581e+00 510 2019 11 3.83721e+01 2.03905e+00 655 2019 12 3.48336e+01 4.93927e-01 576 2020 1 3.63657e+01 1.82384e+00 700 2020 2 4.33273e+01 2.11255e+00 432 2020 3 5.27102e+01 2.08813e+00 883 2020 4 5.73015e+01 1.31752e+00 410 2020 5 6.09460e+01 4.55033e-01 449 2020 6 6.18642e+01 9.84179e-02 488 2020 7 6.16314e+01 4.52645e-01 448 2020 8 5.91225e+01 1.25527e+00 848 2020 9 5.30564e+01 2.08481e+00 665 2020 10 4.49427e+01 2.11821e+00 308 2020 11 3.70400e+01 6.84078e-01 246 2020 12 3.45699e+01 2.98146e-01 799 2021 1 3.72245e+01 1.51768e+00 704 2021 2 4.51218e+01 1.82794e+00 660 2021 3 5.15071e+01 2.37383e+00 900 2021 4 5.85368e+01 1.26980e+00 576 2021 5 6.14125e+01 6.04196e-01 823 2021 6 6.19096e+01 8.90539e-02 188 2021 7 6.12966e+01 4.71563e-01 496 2021 8 5.94049e+01 7.96372e-01 499 2021 9 5.18055e+01 1.68834e+00 561 2021 10 4.65024e+01 2.41029e+00 384 2021 11 3.78161e+01 2.07299e+00 474 2021 12 3.45738e+01 2.92587e-01 1099 2022 1 3.63252e+01 1.59379e+00 589 2022 2 4.40512e+01 2.26768e+00 577 2022 3 5.15689e+01 2.55580e+00 458 2022 4 6.00606e+01 1.77546e-01 128 2022 5 6.08115e+01 4.05405e-01 404 2022 6 6.19577e+01 1.15491e-01 176 2022 7 6.15796e+01 2.59531e-01 241 2022 8 5.83608e+01 8.62954e-01 430 2022 9 5.38666e+01 1.97829e+00 655 2022 10 4.58804e+01 3.01831e+00 858 2022 11 3.83085e+01 2.07073e+00 796 2022 12 3.46630e+01 3.30100e-01 707 2023 1 3.60796e+01 1.18398e+00 705 2023 2 4.40644e+01 2.64352e+00 695 2023 3 5.21493e+01 2.23638e+00 824 2023 4 5.82090e+01 1.43858e+00 487 2023 5 6.10722e+01 4.31011e-01 527 2023 6 6.18744e+01 7.12651e-02 584 2023 7 6.15740e+01 5.09521e-01 449 2023 8 5.91378e+01 1.36027e+00 419 2023 9 5.42613e+01 1.98580e+00 618 2023 10 4.65860e+01 1.88193e+00 609 2023 11 3.80699e+01 1.23459e+00 384 2023 12 3.45317e+01 3.59421e-01 384 2024 1 3.66447e+01 1.70532e+00 404 2024 2 4.43903e+01 1.79475e+00 704 2024 3 5.24889e+01 2.29578e+00 625 2024 4 5.61081e+01 9.33934e-03 31