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 6.16017e+01 3.52940e-01 342 2002 8 5.88482e+01 8.47175e-01 382 2002 9 5.34694e+01 1.79137e+00 263 2002 10 4.60948e+01 2.22615e+00 1054 2002 11 3.95110e+01 1.88106e+00 768 2002 12 3.44960e+01 3.72560e-01 767 2003 1 3.64331e+01 1.02675e+00 618 2003 2 4.38806e+01 2.35459e+00 959 2003 3 5.16030e+01 2.01827e+00 783 2003 4 5.85646e+01 7.32949e-01 510 2003 5 6.12297e+01 4.68063e-01 704 2003 6 6.24349e+01 8.43185e-02 384 2003 7 6.13724e+01 3.78155e-01 283 2003 8 5.87800e+01 1.09264e+00 451 2003 9 5.34852e+01 1.84565e+00 622 2003 10 4.60279e+01 2.44172e+00 654 2003 11 3.81513e+01 1.39575e+00 533 2003 12 3.43142e+01 1.35957e-01 449 2004 1 3.71956e+01 1.29093e+00 709 2004 2 4.35630e+01 2.51137e+00 802 2004 3 5.22687e+01 2.05557e+00 731 2004 4 5.84178e+01 1.20873e+00 696 2004 5 6.18366e+01 5.86452e-01 300 2004 6 6.23831e+01 1.63424e-01 355 2004 7 6.16621e+01 5.22834e-01 366 2004 8 5.80101e+01 8.49060e-01 628 2004 9 5.15427e+01 1.00216e+00 356 2004 10 4.48252e+01 2.34552e+00 755 2004 11 3.85184e+01 1.77736e+00 792 2004 12 3.45549e+01 3.05571e-01 727 2005 1 3.70188e+01 1.58021e+00 832 2005 2 4.31479e+01 1.77754e+00 642 2005 3 5.22433e+01 2.39803e+00 599 2005 4 5.84376e+01 1.12748e+00 572 2005 5 6.15918e+01 6.44574e-01 463 2005 6 6.25043e+01 1.23020e-01 306 2005 7 6.18320e+01 5.19751e-01 367 2005 8 5.87455e+01 1.32943e+00 599 2005 9 5.40146e+01 1.83415e+00 662 2005 10 4.62690e+01 2.75350e+00 370 2005 11 3.85580e+01 1.93757e+00 759 2005 12 3.46649e+01 3.28828e-01 779 2006 1 3.64481e+01 1.48297e+00 883 2006 2 4.50119e+01 2.64693e+00 399 2006 3 5.16622e+01 2.34221e+00 640 2006 4 5.85051e+01 1.34994e+00 749 2006 5 6.13132e+01 6.87003e-01 441 2006 6 6.25333e+01 1.32344e-01 530 2006 7 6.16345e+01 3.61971e-01 448 2006 8 5.89575e+01 1.08070e+00 268 2006 9 5.27910e+01 2.02657e+00 378 2006 10 4.52709e+01 2.19404e+00 516 2006 11 3.70910e+01 1.33656e+00 498 2006 12 3.44302e+01 3.32590e-01 256 2007 1 3.68020e+01 1.07189e+00 482 2007 2 4.51478e+01 2.58262e+00 454 2007 3 5.09754e+01 2.60148e+00 500 2007 4 5.85306e+01 1.39461e+00 524 2007 5 6.10990e+01 5.14672e-01 649 2007 6 6.25159e+01 4.47637e-02 403 2007 7 6.18551e+01 2.94991e-01 454 2007 8 5.97368e+01 8.67843e-01 397 2007 9 5.23070e+01 1.50636e+00 392 2007 10 4.53678e+01 2.58971e+00 325 2007 11 3.89705e+01 1.63404e+00 749 2007 12 3.44606e+01 3.59857e-01 691 2008 1 3.68342e+01 1.59625e+00 795 2008 2 4.30648e+01 2.22476e+00 814 2008 3 5.18183e+01 2.16122e+00 679 2008 4 5.76759e+01 1.87374e+00 691 2008 5 6.14316e+01 5.65274e-01 576 2008 6 6.25254e+01 8.99320e-02 370 2008 7 6.15130e+01 6.44385e-01 448 2008 8 5.95125e+01 7.57022e-01 320 2008 9 5.31735e+01 1.49195e+00 291 2008 10 4.65351e+01 1.95664e+00 475 2008 11 3.80119e+01 1.74074e+00 924 2008 12 3.44685e+01 3.22902e-01 675 2009 1 3.73362e+01 1.92812e+00 688 2009 2 4.44626e+01 2.01502e+00 634 2009 3 5.09755e+01 1.64294e+00 516 2009 4 5.78056e+01 1.14691e+00 409 2009 5 6.13160e+01 4.74941e-01 689 2009 6 6.25206e+01 4.24142e-02 315 2009 7 6.17913e+01 4.30551e-01 320 2009 8 5.89128e+01 1.36979e+00 311 2009 9 5.31208e+01 2.09280e+00 711 2009 10 4.65064e+01 2.24739e+00 672 2009 11 3.79325e+01 1.56922e+00 532 2009 12 3.45611e+01 2.77711e-01 694 2010 1 3.73711e+01 1.42369e+00 574 2010 2 4.43481e+01 2.07753e+00 363 2010 3 5.25609e+01 2.34005e+00 704 2010 4 5.85793e+01 1.29590e+00 405 2010 5 6.14139e+01 6.22243e-01 586 2010 6 6.24064e+01 1.87264e-01 522 2010 7 6.15580e+01 4.77342e-01 342 2010 8 5.91682e+01 1.04676e+00 376 2010 9 5.43136e+01 1.44683e+00 348 2010 10 4.61262e+01 2.28963e+00 783 2010 11 3.87677e+01 1.22614e+00 546 2010 12 3.46513e+01 3.69315e-01 681 2011 1 3.68313e+01 1.53709e+00 858 2011 2 4.42802e+01 2.39308e+00 1076 2011 3 5.25505e+01 2.20047e+00 769 2011 4 5.81099e+01 1.31893e+00 760 2011 5 6.13261e+01 6.69127e-01 617 2011 6 6.25826e+01 1.13673e-01 514 2011 7 6.15704e+01 3.27928e-01 484 2011 8 5.92653e+01 1.08929e+00 340 2011 9 5.38260e+01 1.42226e+00 533 2011 10 4.70553e+01 1.99773e+00 386 2011 11 3.87995e+01 2.11893e+00 879 2011 12 3.44900e+01 2.76368e-01 687 2012 1 3.67859e+01 1.36659e+00 770 2012 2 4.59816e+01 1.13358e+00 354 2012 3 5.07691e+01 2.06108e+00 553 2012 4 5.75324e+01 1.30796e+00 518 2012 5 6.13989e+01 6.11923e-01 384 2012 6 6.25727e+01 1.10533e-01 256 2012 7 6.14452e+01 4.08576e-01 217 2012 8 5.94674e+01 8.00814e-01 533 2012 9 5.37141e+01 1.25914e+00 384 2012 10 4.64144e+01 1.87720e+00 496 2012 11 3.83589e+01 2.00355e+00 832 2012 12 3.45018e+01 3.09010e-01 550 2013 1 3.69375e+01 1.47098e+00 660 2013 2 4.37658e+01 2.51245e+00 515 2013 3 5.30017e+01 2.33612e+00 496 2013 4 5.83616e+01 1.23895e+00 643 2013 5 6.15604e+01 4.89572e-01 553 2013 6 6.24716e+01 7.92236e-02 262 2013 7 6.14333e+01 4.61366e-01 342 2013 8 5.81595e+01 1.51536e+00 238 2013 9 5.17075e+01 1.57785e+00 404 2013 10 4.57773e+01 2.32487e+00 897 2013 11 3.88449e+01 2.11652e+00 698 2013 12 3.47690e+01 4.56309e-01 494 2014 1 3.74140e+01 1.63636e+00 608 2014 2 4.39631e+01 1.93386e+00 793 2014 3 5.13329e+01 2.01001e+00 756 2014 4 5.85497e+01 1.49470e+00 389 2014 5 6.13751e+01 5.56767e-01 495 2014 6 6.24131e+01 7.05920e-02 256 2014 7 6.17732e+01 4.95820e-01 416 2014 8 5.91514e+01 9.50648e-01 665 2014 9 5.32080e+01 1.73546e+00 255 2014 10 4.56388e+01 2.24634e+00 698 2014 11 3.82407e+01 2.02667e+00 968 2014 12 3.46230e+01 3.05192e-01 586 2015 1 3.77355e+01 1.69965e+00 731 2015 2 4.41771e+01 1.94649e+00 442 2015 3 5.10209e+01 2.00393e+00 960 2015 4 5.75669e+01 1.28060e+00 469 2015 5 6.14785e+01 5.06194e-01 637 2015 6 6.24737e+01 1.05596e-01 633 2015 7 6.14486e+01 4.36047e-01 170 2015 8 5.90964e+01 6.99089e-01 368 2015 9 5.53090e+01 1.68573e+00 357 2015 10 4.55892e+01 2.04556e+00 350 2015 11 3.80527e+01 1.83326e+00 695 2015 12 3.44875e+01 3.98211e-01 387 2016 1 3.62176e+01 1.47906e+00 183 2016 2 4.42028e+01 2.36504e+00 544 2016 3 5.16146e+01 2.17762e+00 503 2016 4 5.85166e+01 1.29744e+00 645 2016 5 6.13815e+01 5.37942e-01 784 2016 6 6.23477e+01 1.63332e-01 451 2016 7 6.16241e+01 5.19895e-01 512 2016 8 5.88665e+01 8.63750e-01 307 2016 9 5.28549e+01 1.81474e+00 533 2016 10 4.58408e+01 1.77271e+00 578 2016 11 3.82369e+01 1.54013e+00 812 2016 12 3.44465e+01 3.07634e-01 639 2017 1 3.74402e+01 1.34737e+00 891 2017 2 4.40216e+01 2.35965e+00 1081 2017 3 5.21114e+01 2.06079e+00 601 2017 4 5.85551e+01 1.52705e+00 477 2017 5 6.14119e+01 5.85574e-01 830 2017 6 6.24255e+01 9.14252e-02 384 2017 7 6.18316e+01 4.59412e-01 549 2017 8 5.88726e+01 1.18970e+00 267 2017 9 5.37805e+01 1.31694e+00 300 2017 10 4.54185e+01 2.69281e+00 240 2017 11 3.86384e+01 1.97590e+00 990 2017 12 3.45087e+01 3.43427e-01 1088 2018 1 3.69643e+01 1.78756e+00 388 2018 2 4.36578e+01 2.11091e+00 824 2018 3 5.17111e+01 2.77434e+00 762 2018 4 5.83126e+01 1.47762e+00 742 2018 5 6.05098e+01 8.68636e-02 128 2018 6 6.23894e+01 1.34654e-01 408 2018 7 6.18733e+01 4.52243e-01 554 2018 8 5.88387e+01 1.08265e+00 384 2018 9 5.20684e+01 1.15271e+00 416 2018 10 4.46099e+01 2.26012e+00 689 2018 11 3.86544e+01 1.41922e+00 688 2018 12 3.47277e+01 3.86083e-01 820 2019 1 3.62857e+01 9.69106e-01 649 2019 2 4.42045e+01 2.42147e+00 1120 2019 3 5.16918e+01 2.58736e+00 1015 2019 4 5.83667e+01 1.27930e+00 688 2019 5 6.12802e+01 5.97223e-01 689 2019 6 6.24687e+01 1.90396e-01 759 2019 7 6.12998e+01 3.90486e-01 404 2019 8 5.92874e+01 1.16757e+00 357 2019 9 5.41438e+01 1.44780e+00 386 2019 10 4.55037e+01 2.43851e+00 514 2019 11 3.83981e+01 2.08832e+00 670 2019 12 3.47452e+01 4.83988e-01 598 2020 1 3.60917e+01 1.65401e+00 740 2020 2 4.36576e+01 2.68501e+00 487 2020 3 5.23025e+01 2.10354e+00 1034 2020 4 5.78995e+01 1.40259e+00 389 2020 5 6.12289e+01 5.22294e-01 594 2020 6 6.24536e+01 8.70250e-02 435 2020 7 6.17550e+01 5.26661e-01 516 2020 8 5.90823e+01 1.23359e+00 795 2020 9 5.29036e+01 2.11936e+00 491 2020 10 4.55947e+01 2.13750e+00 299 2020 11 3.69119e+01 6.15465e-01 311 2020 12 3.44454e+01 2.87670e-01 908 2021 1 3.71735e+01 1.58074e+00 640 2021 2 4.44945e+01 2.16522e+00 774 2021 3 5.10215e+01 2.32850e+00 715 2021 4 5.85883e+01 1.27569e+00 576 2021 5 6.14977e+01 6.21012e-01 753 2021 6 6.21112e+01 3.00385e-01 91 2021 7 6.15460e+01 6.01375e-01 424 2021 8 5.92934e+01 9.05729e-01 434 2021 9 5.18150e+01 1.77061e+00 700 2021 10 4.62351e+01 2.51209e+00 329 2021 11 3.74604e+01 1.99424e+00 493 2021 12 3.44947e+01 3.06423e-01 1019 2022 1 3.65270e+01 1.59474e+00 699 2022 2 4.39612e+01 2.10763e+00 620 2022 3 5.16052e+01 2.51374e+00 491 2022 4 5.96743e+01 7.80006e-01 174 2022 5 6.08853e+01 4.22985e-01 448 2022 6 6.25708e+01 1.02856e-01 157 2022 7 6.19563e+01 4.56777e-01 346 2022 8 5.80964e+01 8.26127e-01 434 2022 9 5.35666e+01 2.03177e+00 659 2022 10 4.60472e+01 3.03279e+00 702 2022 11 3.87203e+01 1.97913e+00 626 2022 12 3.46154e+01 3.34428e-01 819 2023 1 3.59958e+01 1.25576e+00 965 2023 2 4.42373e+01 2.44209e+00 808 2023 3 5.21378e+01 2.17689e+00 790 2023 4 5.81411e+01 1.41040e+00 507 2023 5 6.11053e+01 4.07940e-01 574 2023 6 6.24875e+01 8.33763e-02 643 2023 7 6.17160e+01 5.51878e-01 420 2023 8 5.90582e+01 1.33532e+00 406 2023 9 5.39513e+01 1.99436e+00 606 2023 10 4.62315e+01 1.76592e+00 671 2023 11 3.87448e+01 1.23586e+00 297 2023 12 3.44397e+01 3.51595e-01 384 2024 1 3.66640e+01 1.79684e+00 308 2024 2 4.45714e+01 1.78186e+00 732 2024 3 5.21054e+01 2.32938e+00 588 2024 4 5.61465e+01 4.33083e-03 8