YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 1.79850e+01 1.99696e-01 35 2000 3 2.06070e+01 1.24763e+00 192 2000 4 2.18437e+01 1.32682e+00 145 2000 5 2.64103e+01 2.04052e+00 176 2000 6 2.77932e+01 9.35738e-01 80 2000 7 2.92315e+01 5.28652e-01 88 2000 8 2.98485e+01 7.27907e-01 98 2000 9 2.61489e+01 1.70948e+00 89 2000 10 2.23519e+01 9.45555e-01 191 2000 11 2.04172e+01 3.16605e+00 96 2000 12 1.23620e+01 9.27383e-03 10 2001 1 1.20927e+01 4.30640e-01 46 2001 2 1.80706e+01 1.63150e+00 77 2001 3 1.59543e+01 1.14677e+00 78 2001 4 2.14304e+01 2.44268e+00 174 2001 5 2.53390e+01 1.50993e+00 208 2001 6 2.73262e+01 6.71301e-01 32 2001 7 3.03266e+01 8.56358e-02 16 2001 8 2.95087e+01 1.38292e+00 173 2001 9 2.66633e+01 2.19517e+00 113 2001 10 2.19702e+01 1.46243e+00 128 2001 11 1.91417e+01 9.80178e-01 158 2001 12 1.88507e+01 2.60539e+00 140 2002 1 nan nan 0 2002 2 1.45887e+01 2.18847e+00 104 2002 3 1.76390e+01 3.40432e+00 64 2002 4 2.48608e+01 2.20983e+00 141 2002 5 2.57469e+01 1.88045e+00 176 2002 6 2.89339e+01 6.55923e-01 80 2002 7 2.93678e+01 1.73925e+00 333 2002 8 2.89008e+01 1.15472e+00 517 2002 9 2.81223e+01 1.07477e+00 500 2002 10 2.65895e+01 1.77632e+00 580 2002 11 1.95116e+01 2.58913e+00 443 2002 12 1.41948e+01 1.11519e+00 204 2003 1 1.17520e+01 1.28227e+00 465 2003 2 1.44748e+01 1.63675e+00 202 2003 3 2.07064e+01 1.87023e+00 353 2003 4 2.13632e+01 2.16446e+00 720 2003 5 2.66844e+01 1.61538e+00 648 2003 6 2.86041e+01 1.66932e+00 518 2003 7 2.97726e+01 1.17294e+00 419 2003 8 2.90572e+01 1.13695e+00 464 2003 9 2.77817e+01 1.15956e+00 545 2003 10 2.36604e+01 1.07104e+00 559 2003 11 2.10971e+01 2.10781e+00 769 2003 12 1.47112e+01 1.63262e+00 217 2004 1 1.26212e+01 1.29433e+00 278 2004 2 1.30740e+01 1.32974e+00 188 2004 3 1.84459e+01 1.99513e+00 668 2004 4 2.04955e+01 2.09383e+00 647 2004 5 2.63815e+01 1.84163e+00 866 2004 6 2.95472e+01 1.14129e+00 522 2004 7 3.01058e+01 1.48227e+00 603 2004 8 2.95192e+01 1.77073e+00 611 2004 9 2.70029e+01 1.86014e+00 502 2004 10 2.48811e+01 1.70483e+00 628 2004 11 2.07117e+01 2.53336e+00 559 2004 12 1.56540e+01 2.48230e+00 301 2005 1 1.37015e+01 2.37477e+00 332 2005 2 1.41952e+01 1.13159e+00 264 2005 3 1.62580e+01 1.90332e+00 450 2005 4 2.05282e+01 1.23030e+00 603 2005 5 2.51918e+01 2.34568e+00 731 2005 6 2.84359e+01 1.55525e+00 594 2005 7 3.03721e+01 1.70534e+00 606 2005 8 3.02267e+01 1.86953e+00 570 2005 9 2.74775e+01 1.22866e+00 681 2005 10 2.42546e+01 2.91518e+00 724 2005 11 1.95479e+01 1.86344e+00 445 2005 12 1.43980e+01 1.82490e+00 276 2006 1 1.45257e+01 1.88690e+00 396 2006 2 1.42255e+01 1.74582e+00 478 2006 3 1.83820e+01 1.54030e+00 761 2006 4 2.30843e+01 1.96034e+00 821 2006 5 2.51229e+01 1.61605e+00 800 2006 6 2.84401e+01 1.29264e+00 736 2006 7 3.00431e+01 1.37706e+00 675 2006 8 3.03304e+01 1.01692e+00 655 2006 9 2.80697e+01 1.46836e+00 655 2006 10 2.38657e+01 2.17515e+00 719 2006 11 1.84257e+01 1.26449e+00 282 2006 12 1.57661e+01 1.68550e+00 168 2007 1 1.40969e+01 1.77548e+00 227 2007 2 1.31562e+01 1.39827e+00 280 2007 3 1.88253e+01 1.72812e+00 732 2007 4 2.09533e+01 2.10684e+00 536 2007 5 2.45480e+01 1.08687e+00 800 2007 6 2.79979e+01 1.79944e+00 560 2007 7 2.98244e+01 1.77682e+00 473 2007 8 3.03837e+01 1.33102e+00 648 2007 9 2.82433e+01 1.73159e+00 513 2007 10 2.54272e+01 1.73285e+00 461 2007 11 1.82848e+01 1.44227e+00 685 2007 12 1.66412e+01 1.69845e+00 244 2008 1 1.25168e+01 2.10108e+00 218 2008 2 1.58029e+01 1.41874e+00 435 2008 3 1.74938e+01 1.51499e+00 597 2008 4 2.16457e+01 1.52276e+00 678 2008 5 2.55071e+01 1.43692e+00 675 2008 6 2.93106e+01 1.21083e+00 648 2008 7 2.93059e+01 1.61527e+00 491 2008 8 2.86844e+01 1.40888e+00 381 2008 9 2.69983e+01 2.19526e+00 656 2008 10 2.30390e+01 2.50390e+00 807 2008 11 1.63389e+01 2.26280e+00 530 2008 12 1.50525e+01 1.51318e+00 296 2009 1 1.37985e+01 2.71692e+00 411 2009 2 1.37759e+01 1.81946e+00 472 2009 3 1.81749e+01 2.69404e+00 490 2009 4 2.18007e+01 1.93078e+00 651 2009 5 2.62128e+01 1.14344e+00 591 2009 6 2.90736e+01 1.41090e+00 668 2009 7 2.88823e+01 1.45285e+00 589 2009 8 2.92130e+01 1.72657e+00 590 2009 9 2.81530e+01 9.58345e-01 602 2009 10 2.50594e+01 3.07574e+00 705 2009 11 1.89881e+01 1.22541e+00 366 2009 12 1.37925e+01 1.95431e+00 91 2010 1 1.17973e+01 2.92908e+00 281 2010 2 1.19871e+01 1.49145e+00 410 2010 3 1.55936e+01 1.99390e+00 497 2010 4 2.19495e+01 1.41030e+00 612 2010 5 2.72281e+01 2.14418e+00 809 2010 6 3.06941e+01 1.50707e+00 759 2010 7 2.98890e+01 1.63906e+00 711 2010 8 3.00873e+01 1.39338e+00 303 2010 9 2.88615e+01 1.32841e+00 693 2010 10 2.40005e+01 1.11522e+00 985 2010 11 1.89529e+01 1.54047e+00 699 2010 12 1.36667e+01 3.13772e+00 374 2011 1 1.06829e+01 1.43951e+00 436 2011 2 1.49512e+01 2.77444e+00 277 2011 3 1.93696e+01 1.93069e+00 582 2011 4 2.35668e+01 1.79301e+00 915 2011 5 2.58176e+01 1.97377e+00 977 2011 6 2.97281e+01 1.36652e+00 644 2011 7 2.97808e+01 1.03046e+00 468 2011 8 3.04402e+01 1.03858e+00 700 2011 9 2.77131e+01 8.40794e-01 663 2011 10 2.27536e+01 1.85038e+00 630 2011 11 1.80963e+01 8.96194e-01 456 2011 12 1.57148e+01 7.52426e-01 271 2012 1 1.49776e+01 1.85473e+00 478 2012 2 1.54370e+01 1.87172e+00 206 2012 3 2.17285e+01 2.23778e+00 692 2012 4 2.30761e+01 1.19842e+00 862 2012 5 2.67181e+01 1.26726e+00 748 2012 6 2.74544e+01 1.08442e+00 522 2012 7 2.98036e+01 1.61338e+00 555 2012 8 2.90299e+01 1.25245e+00 419 2012 9 2.79508e+01 1.34150e+00 550 2012 10 2.36771e+01 2.51503e+00 649 2012 11 1.80632e+01 1.25995e+00 589 2012 12 1.64264e+01 1.96851e+00 300 2013 1 1.48257e+01 1.39428e+00 292 2013 2 1.57277e+01 1.49577e+00 391 2013 3 1.58072e+01 1.68292e+00 593 2013 4 2.10358e+01 2.05904e+00 600 2013 5 2.49878e+01 2.40230e+00 686 2013 6 2.82450e+01 1.47211e+00 564 2013 7 2.79263e+01 2.13186e+00 402 2013 8 3.02277e+01 1.46326e+00 532 2013 9 2.95107e+01 1.77216e+00 753 2013 10 2.43155e+01 2.05744e+00 671 2013 11 1.93976e+01 2.46905e+00 433 2013 12 1.59201e+01 2.11743e+00 229 2014 1 1.22255e+01 1.00072e+00 254 2014 2 1.47325e+01 1.96308e+00 295 2014 3 1.72120e+01 1.71297e+00 508 2014 4 2.11865e+01 1.93970e+00 578 2014 5 2.53579e+01 1.69272e+00 679 2014 6 2.89167e+01 1.78743e+00 652 2014 7 2.97142e+01 1.24425e+00 543 2014 8 2.99631e+01 1.42036e+00 719 2014 9 2.85351e+01 1.69959e+00 352 2014 10 2.44303e+01 1.76817e+00 809 2014 11 1.67733e+01 2.24201e+00 462 2014 12 1.46855e+01 1.32540e+00 324 2015 1 1.38372e+01 1.27025e+00 356 2015 2 1.31872e+01 1.42392e+00 413 2015 3 1.91353e+01 2.82582e+00 460 2015 4 2.33601e+01 1.70979e+00 317 2015 5 2.68506e+01 1.86827e+00 893 2015 6 2.99985e+01 1.20517e+00 553 2015 7 2.99744e+01 1.51397e+00 398 2015 8 3.01743e+01 1.41231e+00 543 2015 9 2.76306e+01 1.98491e+00 333 2015 10 2.37459e+01 1.32306e+00 563 2015 11 2.16968e+01 3.31894e+00 432 2015 12 1.73784e+01 9.94128e-01 266 2016 1 1.37382e+01 1.62174e+00 364 2016 2 1.41477e+01 1.89429e+00 393 2016 3 1.86194e+01 1.62700e+00 413 2016 4 2.22170e+01 1.66090e+00 594 2016 5 2.60421e+01 1.75675e+00 724 2016 6 2.93676e+01 1.29434e+00 605 2016 7 3.12538e+01 1.18838e+00 810 2016 8 3.04280e+01 1.34191e+00 565 2016 9 2.92688e+01 1.08989e+00 646 2016 10 2.50090e+01 1.77271e+00 763 2016 11 2.00047e+01 2.67926e+00 637 2016 12 1.71172e+01 1.42006e+00 329 2017 1 1.57402e+01 1.96378e+00 261 2017 2 1.76867e+01 2.18311e+00 506 2017 3 1.86903e+01 2.31363e+00 681 2017 4 2.32427e+01 1.44775e+00 629 2017 5 2.49037e+01 1.74997e+00 554 2017 6 2.87402e+01 1.68939e+00 370 2017 7 3.05282e+01 1.39285e+00 412 2017 8 3.05337e+01 1.30498e+00 488 2017 9 2.78681e+01 1.66538e+00 652 2017 10 2.45859e+01 2.51953e+00 870 2017 11 1.93841e+01 1.22999e+00 621 2017 12 1.64980e+01 2.64828e+00 325 2018 1 1.13828e+01 1.54629e+00 221 2018 2 1.94809e+01 3.28574e+00 282 2018 3 1.80129e+01 2.04836e+00 668 2018 4 2.12406e+01 1.44857e+00 592 2018 5 2.52414e+01 1.69430e+00 634 2018 6 2.97618e+01 1.49827e+00 476 2018 7 3.00733e+01 1.19527e+00 435 2018 8 3.00873e+01 1.41773e+00 462 2018 9 3.03932e+01 1.16922e+00 761 2018 10 2.64620e+01 2.65534e+00 742 2018 11 1.86411e+01 2.30749e+00 285 2018 12 1.52617e+01 1.73283e+00 250 2019 1 1.47087e+01 2.10941e+00 403 2019 2 1.71160e+01 2.54476e+00 227 2019 3 1.83129e+01 1.55187e+00 495 2019 4 2.19797e+01 1.64915e+00 582 2019 5 2.74688e+01 2.12832e+00 902 2019 6 2.92494e+01 1.13059e+00 464 2019 7 2.97407e+01 1.36447e+00 493 2019 8 3.00971e+01 1.28800e+00 531 2019 9 2.90178e+01 1.16674e+00 846 2019 10 2.60988e+01 2.08506e+00 660 2019 11 1.80185e+01 2.62893e+00 537 2019 12 1.58254e+01 1.39681e+00 354 2020 1 1.52914e+01 1.79732e+00 518 2020 2 1.51085e+01 1.38775e+00 432 2020 3 2.12547e+01 3.79391e+00 594 2020 4 2.35862e+01 9.54965e-01 530 2020 5 2.47340e+01 1.36040e+00 656 2020 6 2.94059e+01 1.18586e+00 495 2020 7 2.99187e+01 1.36593e+00 556 2020 8 3.08520e+01 1.17008e+00 442 2020 9 2.89453e+01 2.32336e+00 386 2020 10 2.52203e+01 1.25933e+00 615 2020 11 2.11461e+01 1.84860e+00 728 2020 12 1.45149e+01 1.51033e+00 675 2021 1 1.34812e+01 1.72696e+00 449 2021 2 1.56406e+01 2.29406e+00 444 2021 3 1.86706e+01 1.51957e+00 569 2021 4 2.15046e+01 1.60864e+00 624 2021 5 2.56558e+01 1.55842e+00 640 2021 6 2.81456e+01 1.60562e+00 357 2021 7 2.96407e+01 1.20152e+00 406 2021 8 3.04320e+01 1.42224e+00 392 2021 9 2.83494e+01 1.09713e+00 574 2021 10 2.52230e+01 2.20889e+00 665 2021 11 1.80187e+01 1.64110e+00 707 2021 12 1.70360e+01 1.51766e+00 541 2022 1 1.49012e+01 2.83212e+00 685 2022 2 1.53147e+01 2.54519e+00 566 2022 3 1.93512e+01 1.09929e+00 748 2022 4 2.30528e+01 1.47692e+00 500 2022 5 2.68942e+01 1.29569e+00 706 2022 6 3.01088e+01 1.39486e+00 605 2022 7 3.03580e+01 1.54608e+00 485 2022 8 3.10699e+01 1.28358e+00 448 2022 9 2.80995e+01 2.13601e+00 454 2022 10 2.27194e+01 1.63588e+00 897 2022 11 2.09922e+01 2.45651e+00 427 2022 12 1.65852e+01 3.46402e+00 787 2023 1 1.44422e+01 1.07612e+00 653 2023 2 1.67269e+01 1.76472e+00 466 2023 3 2.04688e+01 2.42822e+00 617 2023 4 2.29225e+01 9.73430e-01 455 2023 5 2.55111e+01 1.84527e+00 639 2023 6 2.79663e+01 2.01800e+00 483 2023 7 3.04296e+01 1.54731e+00 437 2023 8 3.11018e+01 8.65461e-01 703 2023 9 2.89829e+01 1.37441e+00 596 2023 10 2.31462e+01 1.46851e+00 729 2023 11 1.98306e+01 1.91063e+00 478 2023 12 1.43559e+01 1.56594e+00 387 2024 1 1.32433e+01 1.18752e+00 304 2024 2 1.51522e+01 1.04241e+00 486 2024 3 1.98620e+01 1.03760e+00 427 2024 4 2.12742e+01 2.36620e-01 48