YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 2.19369e+01 6.03273e-01 48 2000 3 2.42275e+01 9.29668e-01 175 2000 4 2.54889e+01 7.34111e-01 131 2000 5 2.63407e+01 1.81638e+00 104 2000 6 2.83719e+01 1.41522e+00 120 2000 7 3.02120e+01 7.03039e-01 128 2000 8 2.87620e+01 1.56139e+00 106 2000 9 3.03422e+01 7.38352e-01 96 2000 10 2.64465e+01 2.85623e+00 88 2000 11 2.36751e+01 9.35562e-01 139 2000 12 2.30097e+01 1.07360e+00 86 2001 1 1.91877e+01 7.98194e-01 22 2001 2 2.27617e+01 1.04090e+00 122 2001 3 2.27881e+01 1.63484e+00 145 2001 4 2.55557e+01 1.33601e+00 176 2001 5 2.55100e+01 1.55705e+00 118 2001 6 2.96254e+01 8.95522e-01 94 2001 7 2.93004e+01 1.81471e+00 134 2001 8 3.05652e+01 1.33688e+00 128 2001 9 2.77123e+01 2.08053e+00 64 2001 10 2.67189e+01 3.93257e-01 45 2001 11 2.38349e+01 8.02644e-01 81 2001 12 2.36977e+01 9.89733e-01 95 2002 1 2.33698e+01 1.44778e+00 135 2002 2 2.25838e+01 8.07763e-01 66 2002 3 2.47763e+01 1.92753e+00 120 2002 4 2.71126e+01 8.65874e-01 160 2002 5 2.82021e+01 8.45779e-01 128 2002 6 2.88358e+01 1.84500e-01 19 2002 7 2.95065e+01 1.32651e+00 424 2002 8 2.97970e+01 1.39640e+00 400 2002 9 2.90688e+01 9.80457e-01 478 2002 10 2.83340e+01 6.87131e-01 830 2002 11 2.48564e+01 2.39438e+00 510 2002 12 2.08437e+01 1.65875e+00 553 2003 1 1.74976e+01 1.86004e+00 435 2003 2 2.24179e+01 1.78579e+00 704 2003 3 2.64615e+01 1.04712e+00 587 2003 4 2.47920e+01 1.54619e+00 562 2003 5 2.83582e+01 1.39257e+00 675 2003 6 2.86603e+01 1.24874e+00 400 2003 7 2.97129e+01 1.13995e+00 485 2003 8 2.95229e+01 8.37678e-01 339 2003 9 2.93752e+01 7.52447e-01 421 2003 10 2.75308e+01 1.17427e+00 645 2003 11 2.40089e+01 9.13940e-01 517 2003 12 1.94420e+01 1.48528e+00 408 2004 1 2.02365e+01 1.08350e+00 612 2004 2 2.17657e+01 1.34520e+00 487 2004 3 2.28166e+01 1.16439e+00 395 2004 4 2.35154e+01 1.33280e+00 713 2004 5 2.66389e+01 1.58840e+00 770 2004 6 3.00765e+01 1.18988e+00 613 2004 7 3.03398e+01 1.34459e+00 608 2004 8 3.03834e+01 1.37634e+00 313 2004 9 2.82478e+01 1.44601e+00 404 2004 10 2.66689e+01 1.03552e+00 609 2004 11 2.37451e+01 1.15969e+00 541 2004 12 2.14836e+01 2.06824e+00 404 2005 1 1.99210e+01 1.81082e+00 640 2005 2 1.98017e+01 1.42877e+00 473 2005 3 2.30318e+01 2.30429e+00 537 2005 4 2.37493e+01 8.79217e-01 774 2005 5 2.64937e+01 1.70805e+00 635 2005 6 2.86756e+01 1.28359e+00 267 2005 7 3.02449e+01 9.50232e-01 691 2005 8 3.07235e+01 1.48655e+00 533 2005 9 2.94891e+01 1.50416e+00 534 2005 10 2.65506e+01 2.70272e+00 376 2005 11 2.36187e+01 1.17814e+00 711 2005 12 2.12770e+01 1.63331e+00 565 2006 1 2.06361e+01 1.66337e+00 472 2006 2 2.10108e+01 1.79464e+00 585 2006 3 2.30547e+01 1.24487e+00 743 2006 4 2.50268e+01 1.65161e+00 734 2006 5 2.67456e+01 1.61262e+00 696 2006 6 2.94960e+01 9.48323e-01 536 2006 7 2.90026e+01 1.19701e+00 341 2006 8 2.98455e+01 1.05524e+00 438 2006 9 2.91514e+01 9.07070e-01 599 2006 10 2.70279e+01 1.53983e+00 670 2006 11 2.21145e+01 2.26060e+00 407 2006 12 2.25011e+01 1.07126e+00 319 2007 1 2.24629e+01 1.34474e+00 469 2007 2 2.04718e+01 1.18823e+00 347 2007 3 2.26873e+01 9.65252e-01 461 2007 4 2.42036e+01 1.18936e+00 679 2007 5 2.60734e+01 1.27392e+00 666 2007 6 2.81494e+01 1.49289e+00 418 2007 7 3.07168e+01 1.07411e+00 520 2007 8 3.03355e+01 1.07029e+00 684 2007 9 2.97143e+01 1.31004e+00 509 2007 10 2.73558e+01 9.29568e-01 416 2007 11 2.35037e+01 1.27942e+00 733 2007 12 2.32839e+01 1.44740e+00 609 2008 1 2.09007e+01 1.13395e+00 484 2008 2 2.33907e+01 1.40111e+00 537 2008 3 2.29918e+01 1.24875e+00 484 2008 4 2.48489e+01 1.36163e+00 748 2008 5 2.74210e+01 1.71254e+00 764 2008 6 2.86029e+01 8.34441e-01 584 2008 7 3.00973e+01 1.32058e+00 475 2008 8 2.98708e+01 1.67803e+00 585 2008 9 2.83269e+01 9.79541e-01 424 2008 10 2.64900e+01 2.23816e+00 453 2008 11 2.17705e+01 1.95730e+00 620 2008 12 2.14845e+01 1.08488e+00 556 2009 1 2.04346e+01 1.85835e+00 642 2009 2 2.05726e+01 2.10653e+00 600 2009 3 2.18361e+01 1.86014e+00 475 2009 4 2.48528e+01 9.62614e-01 659 2009 5 2.72677e+01 1.55010e+00 720 2009 6 2.98267e+01 1.60425e+00 449 2009 7 2.99185e+01 1.21733e+00 583 2009 8 3.05466e+01 7.99903e-01 642 2009 9 2.95444e+01 9.75983e-01 419 2009 10 2.83511e+01 2.17952e+00 727 2009 11 2.47335e+01 2.41661e+00 472 2009 12 2.32318e+01 2.14412e+00 439 2010 1 1.97698e+01 1.65129e+00 295 2010 2 1.94443e+01 1.82225e+00 295 2010 3 1.95820e+01 2.17602e+00 457 2010 4 2.37772e+01 1.38402e+00 508 2010 5 2.79299e+01 1.61312e+00 787 2010 6 3.07882e+01 1.34146e+00 679 2010 7 3.00979e+01 1.11560e+00 409 2010 8 3.09041e+01 1.34539e+00 447 2010 9 2.91264e+01 1.03156e+00 532 2010 10 2.64714e+01 1.10543e+00 689 2010 11 2.31111e+01 1.63170e+00 500 2010 12 1.89134e+01 2.58716e+00 523 2011 1 1.94863e+01 1.53259e+00 514 2011 2 2.19582e+01 1.51986e+00 702 2011 3 2.35434e+01 1.44908e+00 786 2011 4 2.67878e+01 9.92387e-01 792 2011 5 2.72626e+01 8.23203e-01 881 2011 6 2.87854e+01 1.78254e+00 545 2011 7 3.03947e+01 1.35519e+00 493 2011 8 2.93679e+01 1.60226e+00 352 2011 9 2.98352e+01 1.03757e+00 561 2011 10 2.67753e+01 2.11009e+00 319 2011 11 2.36240e+01 9.97437e-01 650 2011 12 2.18803e+01 9.85884e-01 637 2012 1 2.02623e+01 1.85380e+00 500 2012 2 2.26116e+01 1.60170e+00 474 2012 3 2.37203e+01 1.27905e+00 742 2012 4 2.48683e+01 1.39657e+00 593 2012 5 2.70901e+01 1.34471e+00 505 2012 6 2.92398e+01 1.05071e+00 355 2012 7 2.97257e+01 1.38164e+00 558 2012 8 3.02087e+01 1.31685e+00 490 2012 9 2.94803e+01 1.03761e+00 420 2012 10 2.67471e+01 2.31449e+00 530 2012 11 2.20200e+01 1.37204e+00 588 2012 12 2.22053e+01 1.71823e+00 551 2013 1 2.20969e+01 1.11560e+00 566 2013 2 2.21327e+01 1.44242e+00 649 2013 3 2.08688e+01 1.82648e+00 571 2013 4 2.55787e+01 1.64700e+00 593 2013 5 2.69851e+01 1.05893e+00 684 2013 6 2.91973e+01 1.11371e+00 366 2013 7 2.93625e+01 1.36348e+00 469 2013 8 2.96936e+01 9.13495e-01 401 2013 9 2.89545e+01 7.91869e-01 414 2013 10 2.75403e+01 1.42205e+00 711 2013 11 2.48829e+01 1.14762e+00 416 2013 12 2.31992e+01 9.87135e-01 561 2014 1 2.07545e+01 2.02378e+00 442 2014 2 2.39490e+01 1.44374e+00 760 2014 3 2.41351e+01 8.16232e-01 711 2014 4 2.59310e+01 1.70043e+00 602 2014 5 2.67479e+01 1.22459e+00 541 2014 6 2.95958e+01 1.54662e+00 479 2014 7 3.03805e+01 1.08943e+00 516 2014 8 3.11305e+01 1.20723e+00 743 2014 9 2.92722e+01 8.82459e-01 372 2014 10 2.69718e+01 1.61735e+00 684 2014 11 2.29871e+01 1.66637e+00 628 2014 12 2.15965e+01 1.65861e+00 588 2015 1 2.23048e+01 1.82957e+00 446 2015 2 2.02200e+01 1.49568e+00 585 2015 3 2.54692e+01 1.35595e+00 794 2015 4 2.74364e+01 1.76769e+00 788 2015 5 2.76668e+01 1.26266e+00 739 2015 6 3.02507e+01 1.04431e+00 468 2015 7 3.03763e+01 1.04577e+00 542 2015 8 3.04544e+01 1.10003e+00 434 2015 9 3.01446e+01 1.17179e+00 280 2015 10 2.77558e+01 1.50398e+00 454 2015 11 2.67871e+01 2.10799e+00 603 2015 12 2.38992e+01 9.18335e-01 355 2016 1 2.15602e+01 2.33479e+00 139 2016 2 2.08201e+01 1.24450e+00 403 2016 3 2.33680e+01 1.88204e+00 250 2016 4 2.52644e+01 1.03217e+00 685 2016 5 2.73383e+01 1.44009e+00 690 2016 6 2.99802e+01 1.07881e+00 604 2016 7 3.10375e+01 7.78628e-01 580 2016 8 3.09321e+01 1.05125e+00 429 2016 9 3.04853e+01 1.28960e+00 629 2016 10 2.69865e+01 1.56009e+00 419 2016 11 2.34856e+01 1.21466e+00 711 2016 12 2.41987e+01 7.83594e-01 605 2017 1 2.20540e+01 1.27894e+00 605 2017 2 2.29768e+01 1.01363e+00 642 2017 3 2.30580e+01 1.33302e+00 739 2017 4 2.51083e+01 1.27296e+00 409 2017 5 2.76486e+01 1.36899e+00 820 2017 6 2.92723e+01 9.63485e-01 275 2017 7 3.06466e+01 1.24359e+00 634 2017 8 3.09058e+01 1.66493e+00 550 2017 9 2.97346e+01 1.46613e+00 641 2017 10 2.72266e+01 1.71174e+00 494 2017 11 2.45742e+01 9.52568e-01 745 2017 12 2.29743e+01 1.42927e+00 790 2018 1 2.00157e+01 1.30335e+00 334 2018 2 2.40476e+01 1.48770e+00 785 2018 3 2.28637e+01 1.67368e+00 857 2018 4 2.59843e+01 1.10185e+00 830 2018 5 2.59251e+01 1.56371e+00 258 2018 6 2.97249e+01 1.32405e+00 360 2018 7 3.09038e+01 1.00950e+00 535 2018 8 3.03983e+01 1.04150e+00 711 2018 9 3.02370e+01 1.14979e+00 552 2018 10 2.79371e+01 1.24149e+00 772 2018 11 2.59276e+01 1.50735e+00 557 2018 12 2.17136e+01 1.28201e+00 541 2019 1 2.15117e+01 1.82852e+00 615 2019 2 2.38295e+01 1.80019e+00 686 2019 3 2.44916e+01 1.49206e+00 672 2019 4 2.62019e+01 1.03499e+00 778 2019 5 2.82338e+01 1.11811e+00 737 2019 6 3.06233e+01 1.46076e+00 590 2019 7 3.05670e+01 1.05165e+00 523 2019 8 3.07583e+01 9.65899e-01 455 2019 9 2.89149e+01 1.36602e+00 529 2019 10 2.81452e+01 9.19311e-01 669 2019 11 2.53307e+01 2.46231e+00 599 2019 12 2.28455e+01 1.13021e+00 526 2020 1 2.24811e+01 1.22150e+00 557 2020 2 2.31282e+01 1.85989e+00 553 2020 3 2.45748e+01 2.00819e+00 836 2020 4 2.74983e+01 9.85602e-01 663 2020 5 2.69392e+01 1.50531e+00 504 2020 6 2.99126e+01 1.30973e+00 483 2020 7 3.07827e+01 1.39137e+00 531 2020 8 3.08821e+01 1.28460e+00 520 2020 9 2.98522e+01 1.08158e+00 434 2020 10 2.84822e+01 1.22585e+00 520 2020 11 2.51996e+01 1.52055e+00 452 2020 12 2.19704e+01 1.27691e+00 466 2021 1 2.14655e+01 1.21969e+00 551 2021 2 2.32578e+01 2.31034e+00 597 2021 3 2.44323e+01 1.58910e+00 639 2021 4 2.55328e+01 1.74210e+00 653 2021 5 2.72263e+01 1.61878e+00 705 2021 6 2.83472e+01 1.24112e+00 311 2021 7 3.00217e+01 1.20544e+00 628 2021 8 3.09496e+01 1.06611e+00 480 2021 9 2.99276e+01 1.05571e+00 499 2021 10 2.81792e+01 8.12391e-01 542 2021 11 2.33253e+01 1.33762e+00 461 2021 12 2.35681e+01 1.34627e+00 725 2022 1 2.18093e+01 1.70182e+00 447 2022 2 2.27437e+01 1.65335e+00 632 2022 3 2.48173e+01 1.15504e+00 758 2022 4 2.60099e+01 9.91381e-01 356 2022 5 2.82244e+01 1.08525e+00 684 2022 6 2.97964e+01 1.44959e+00 528 2022 7 3.01344e+01 1.13161e+00 688 2022 8 3.04615e+01 9.26872e-01 662 2022 9 3.06151e+01 1.39194e+00 509 2022 10 2.65127e+01 1.26119e+00 573 2022 11 2.64601e+01 6.70064e-01 698 2022 12 2.34970e+01 1.44037e+00 514 2023 1 2.16977e+01 1.77913e+00 871 2023 2 2.40569e+01 1.33084e+00 805 2023 3 2.52979e+01 1.53795e+00 612 2023 4 2.70709e+01 8.31620e-01 480 2023 5 2.80543e+01 1.18252e+00 573 2023 6 2.97660e+01 8.32229e-01 460 2023 7 3.16702e+01 1.34637e+00 374 2023 8 3.09579e+01 1.41436e+00 603 2023 9 3.04730e+01 9.36035e-01 493 2023 10 2.72299e+01 1.92308e+00 573 2023 11 2.51013e+01 1.01432e+00 538 2023 12 2.19361e+01 1.67389e+00 302 2024 1 2.15930e+01 1.96127e+00 299 2024 2 2.08638e+01 1.11838e+00 582 2024 3 2.52351e+01 1.06115e+00 480 2024 4 2.49085e+01 7.17650e-01 54