YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 1.65856e+01 8.90905e-02 32 2000 3 1.97501e+01 1.32238e+00 163 2000 4 2.16267e+01 1.54657e+00 163 2000 5 2.53899e+01 1.98360e+00 205 2000 6 2.77133e+01 7.38591e-01 88 2000 7 2.93089e+01 1.00247e+00 92 2000 8 2.95040e+01 5.98028e-01 84 2000 9 2.75845e+01 7.84396e-01 64 2000 10 2.34441e+01 1.19894e+00 207 2000 11 2.18767e+01 2.07201e+00 144 2000 12 1.54701e+01 1.69895e+00 89 2001 1 1.25712e+01 9.66631e-02 32 2001 2 1.71099e+01 9.33611e-01 58 2001 3 1.66373e+01 1.52832e+00 142 2001 4 2.02887e+01 1.86804e+00 194 2001 5 2.41626e+01 1.60319e+00 174 2001 6 2.77930e+01 8.38190e-01 80 2001 7 2.95379e+01 8.92561e-01 52 2001 8 2.90943e+01 5.99927e-01 138 2001 9 2.73342e+01 1.34963e+00 66 2001 10 2.31155e+01 1.47215e+00 175 2001 11 2.01813e+01 4.99030e-01 190 2001 12 1.94290e+01 1.87022e+00 152 2002 1 1.43852e+01 3.10673e-01 32 2002 2 1.49232e+01 1.00195e+00 84 2002 3 1.79107e+01 1.70272e+00 38 2002 4 2.37036e+01 2.19317e+00 128 2002 5 2.60005e+01 1.21747e+00 194 2002 6 2.78798e+01 8.32992e-01 142 2002 7 2.88592e+01 1.65546e+00 468 2002 8 2.91764e+01 1.22360e+00 540 2002 9 2.84820e+01 1.19682e+00 538 2002 10 2.70977e+01 1.99293e+00 690 2002 11 2.16637e+01 2.74652e+00 550 2002 12 1.58725e+01 1.13289e+00 320 2003 1 1.29580e+01 1.27643e+00 525 2003 2 1.41113e+01 1.35531e+00 213 2003 3 2.02255e+01 1.04225e+00 330 2003 4 2.14802e+01 1.69248e+00 653 2003 5 2.65028e+01 1.35204e+00 672 2003 6 2.80081e+01 1.34639e+00 464 2003 7 2.89217e+01 2.00717e+00 297 2003 8 2.88126e+01 1.50930e+00 509 2003 9 2.84476e+01 1.01144e+00 469 2003 10 2.45400e+01 8.50391e-01 667 2003 11 2.21104e+01 1.61897e+00 753 2003 12 1.58599e+01 1.92462e+00 375 2004 1 1.37744e+01 7.88311e-01 410 2004 2 1.38226e+01 1.13566e+00 176 2004 3 1.80815e+01 1.52369e+00 723 2004 4 2.01630e+01 1.37842e+00 607 2004 5 2.55128e+01 1.85196e+00 926 2004 6 2.91540e+01 1.31036e+00 621 2004 7 2.97329e+01 1.67300e+00 547 2004 8 2.97495e+01 1.31546e+00 525 2004 9 2.74846e+01 1.44692e+00 485 2004 10 2.49990e+01 1.40847e+00 635 2004 11 2.25215e+01 2.18635e+00 538 2004 12 1.62580e+01 2.24489e+00 599 2005 1 1.45491e+01 1.74172e+00 352 2005 2 1.40157e+01 1.05579e+00 282 2005 3 1.61291e+01 1.40320e+00 397 2005 4 2.02074e+01 7.27999e-01 670 2005 5 2.45756e+01 2.06887e+00 795 2005 6 2.86463e+01 1.28630e+00 525 2005 7 2.99195e+01 1.58319e+00 647 2005 8 2.97012e+01 1.94424e+00 463 2005 9 2.83659e+01 8.67201e-01 698 2005 10 2.57551e+01 2.08417e+00 885 2005 11 2.06869e+01 1.61222e+00 547 2005 12 1.55728e+01 2.00237e+00 384 2006 1 1.48872e+01 9.32710e-01 387 2006 2 1.47448e+01 1.29654e+00 438 2006 3 1.81655e+01 1.00613e+00 642 2006 4 2.23794e+01 2.12959e+00 701 2006 5 2.48902e+01 1.39742e+00 807 2006 6 2.81578e+01 1.23673e+00 743 2006 7 2.99713e+01 1.19834e+00 637 2006 8 3.02948e+01 1.07889e+00 698 2006 9 2.86071e+01 1.47268e+00 698 2006 10 2.51757e+01 1.82865e+00 802 2006 11 1.91193e+01 1.89764e+00 525 2006 12 1.62019e+01 1.23475e+00 222 2007 1 1.52533e+01 1.61995e+00 274 2007 2 1.40847e+01 7.04639e-01 324 2007 3 1.79672e+01 1.73550e+00 657 2007 4 2.07150e+01 1.40471e+00 454 2007 5 2.40399e+01 9.52582e-01 972 2007 6 2.73351e+01 1.80279e+00 711 2007 7 2.96444e+01 1.85749e+00 488 2007 8 3.06637e+01 1.23876e+00 664 2007 9 2.89221e+01 1.40683e+00 608 2007 10 2.63329e+01 9.91741e-01 516 2007 11 2.01567e+01 1.82072e+00 811 2007 12 1.79977e+01 1.18959e+00 422 2008 1 1.45582e+01 1.62733e+00 246 2008 2 1.61152e+01 9.44997e-01 349 2008 3 1.77194e+01 1.38977e+00 540 2008 4 2.15093e+01 1.02086e+00 742 2008 5 2.50786e+01 1.52007e+00 713 2008 6 2.84379e+01 1.37427e+00 551 2008 7 2.96391e+01 1.50295e+00 466 2008 8 2.86060e+01 1.23871e+00 387 2008 9 2.78397e+01 1.53728e+00 656 2008 10 2.42624e+01 1.62897e+00 866 2008 11 1.86853e+01 1.62233e+00 602 2008 12 1.58170e+01 8.39883e-01 367 2009 1 1.51717e+01 1.49536e+00 448 2009 2 1.41096e+01 1.12474e+00 482 2009 3 1.74444e+01 2.00765e+00 505 2009 4 2.13352e+01 1.82571e+00 683 2009 5 2.57896e+01 1.16444e+00 626 2009 6 2.80250e+01 1.13524e+00 681 2009 7 2.88303e+01 1.49969e+00 591 2009 8 2.99503e+01 1.36337e+00 473 2009 9 2.85876e+01 9.56704e-01 560 2009 10 2.62039e+01 2.21744e+00 727 2009 11 2.03944e+01 1.25018e+00 470 2009 12 1.57401e+01 1.75058e+00 121 2010 1 1.23723e+01 1.60208e+00 377 2010 2 1.27170e+01 9.32688e-01 415 2010 3 1.46980e+01 2.24160e+00 497 2010 4 2.13736e+01 1.29527e+00 599 2010 5 2.66230e+01 2.19482e+00 820 2010 6 3.01451e+01 1.28832e+00 663 2010 7 2.97302e+01 1.37738e+00 650 2010 8 2.95531e+01 1.63602e+00 404 2010 9 2.92171e+01 1.20077e+00 712 2010 10 2.51216e+01 1.03811e+00 1027 2010 11 2.06498e+01 1.33129e+00 755 2010 12 1.52394e+01 3.01386e+00 568 2011 1 1.16738e+01 9.70996e-01 391 2011 2 1.31546e+01 1.57660e+00 204 2011 3 1.85712e+01 1.24177e+00 554 2011 4 2.33761e+01 1.41727e+00 914 2011 5 2.57015e+01 1.26874e+00 1064 2011 6 2.92310e+01 1.37861e+00 616 2011 7 2.97401e+01 1.32046e+00 510 2011 8 3.06922e+01 9.32843e-01 777 2011 9 2.86730e+01 1.01063e+00 651 2011 10 2.45999e+01 1.86915e+00 701 2011 11 1.94512e+01 1.10477e+00 560 2011 12 1.72267e+01 9.09219e-01 344 2012 1 1.55224e+01 1.06256e+00 537 2012 2 1.61909e+01 1.19489e+00 220 2012 3 2.06865e+01 2.03350e+00 623 2012 4 2.33423e+01 8.41844e-01 875 2012 5 2.64698e+01 1.19637e+00 865 2012 6 2.75722e+01 8.16965e-01 640 2012 7 2.90685e+01 1.44703e+00 594 2012 8 2.87184e+01 1.54043e+00 434 2012 9 2.82536e+01 1.22502e+00 548 2012 10 2.51385e+01 2.04685e+00 730 2012 11 1.92824e+01 1.14002e+00 650 2012 12 1.70898e+01 1.81423e+00 367 2013 1 1.54560e+01 7.75000e-01 307 2013 2 1.62280e+01 1.30339e+00 438 2013 3 1.60392e+01 1.17436e+00 666 2013 4 2.07415e+01 1.87262e+00 501 2013 5 2.44381e+01 1.99461e+00 623 2013 6 2.78672e+01 1.46842e+00 615 2013 7 2.83806e+01 1.95763e+00 244 2013 8 3.02546e+01 1.53972e+00 642 2013 9 2.95221e+01 1.62758e+00 752 2013 10 2.56410e+01 1.61152e+00 734 2013 11 2.06473e+01 1.97654e+00 452 2013 12 1.71641e+01 1.50876e+00 344 2014 1 1.34232e+01 7.47920e-01 223 2014 2 1.49471e+01 2.03268e+00 301 2014 3 1.70575e+01 1.15590e+00 470 2014 4 2.07717e+01 1.72437e+00 525 2014 5 2.51832e+01 1.55309e+00 637 2014 6 2.86567e+01 1.58274e+00 577 2014 7 2.98649e+01 1.29176e+00 582 2014 8 2.97765e+01 1.13884e+00 760 2014 9 2.86762e+01 1.58596e+00 389 2014 10 2.57791e+01 1.57967e+00 836 2014 11 1.86806e+01 2.05813e+00 552 2014 12 1.61454e+01 1.01747e+00 402 2015 1 1.47593e+01 1.15960e+00 434 2015 2 1.38257e+01 1.10819e+00 411 2015 3 1.85996e+01 2.41682e+00 439 2015 4 2.25575e+01 1.87363e+00 317 2015 5 2.65426e+01 1.59477e+00 939 2015 6 2.99236e+01 8.50638e-01 564 2015 7 2.97163e+01 1.21195e+00 417 2015 8 3.00733e+01 1.58058e+00 580 2015 9 2.83530e+01 1.65943e+00 267 2015 10 2.44301e+01 1.18554e+00 634 2015 11 2.24263e+01 2.38142e+00 540 2015 12 1.92028e+01 6.55043e-01 366 2016 1 1.57957e+01 1.91088e+00 382 2016 2 1.44634e+01 1.18177e+00 381 2016 3 1.84985e+01 1.93532e+00 403 2016 4 2.17478e+01 1.91917e+00 547 2016 5 2.56968e+01 1.35761e+00 854 2016 6 2.93660e+01 1.05945e+00 680 2016 7 3.12554e+01 1.06047e+00 767 2016 8 3.03625e+01 1.34390e+00 616 2016 9 2.92553e+01 1.27487e+00 632 2016 10 2.58560e+01 1.68473e+00 696 2016 11 2.15502e+01 2.22431e+00 702 2016 12 1.82182e+01 1.39248e+00 458 2017 1 1.63765e+01 1.39272e+00 320 2017 2 1.77494e+01 1.46082e+00 501 2017 3 1.87452e+01 1.67885e+00 687 2017 4 2.27985e+01 1.28052e+00 727 2017 5 2.50421e+01 1.21107e+00 581 2017 6 2.83603e+01 1.54791e+00 460 2017 7 3.04529e+01 1.30906e+00 402 2017 8 3.04512e+01 1.28232e+00 523 2017 9 2.83679e+01 1.26422e+00 675 2017 10 2.56902e+01 1.80232e+00 901 2017 11 2.08638e+01 1.44811e+00 795 2017 12 1.74610e+01 2.05152e+00 349 2018 1 1.24092e+01 5.95550e-01 343 2018 2 1.82954e+01 2.40728e+00 171 2018 3 1.84696e+01 1.25569e+00 696 2018 4 2.09981e+01 1.36436e+00 557 2018 5 2.48630e+01 1.40049e+00 530 2018 6 2.87386e+01 1.48832e+00 498 2018 7 3.01420e+01 8.08674e-01 525 2018 8 3.01309e+01 1.34489e+00 451 2018 9 3.04947e+01 1.01272e+00 791 2018 10 2.73366e+01 2.05285e+00 764 2018 11 2.08050e+01 1.87336e+00 279 2018 12 1.67634e+01 1.64354e+00 285 2019 1 1.58199e+01 1.36493e+00 417 2019 2 1.65241e+01 2.52542e+00 158 2019 3 1.85784e+01 1.15329e+00 519 2019 4 2.14685e+01 2.22174e+00 542 2019 5 2.70550e+01 2.06051e+00 904 2019 6 2.90573e+01 1.22479e+00 491 2019 7 3.00048e+01 1.15063e+00 458 2019 8 3.01440e+01 1.00615e+00 582 2019 9 2.92931e+01 9.52040e-01 992 2019 10 2.71004e+01 1.79960e+00 608 2019 11 1.94516e+01 2.33670e+00 549 2019 12 1.70757e+01 1.18773e+00 454 2020 1 1.61962e+01 1.19292e+00 486 2020 2 1.55473e+01 8.58075e-01 429 2020 3 2.07841e+01 3.21852e+00 646 2020 4 2.36678e+01 9.99169e-01 514 2020 5 2.47263e+01 1.36954e+00 736 2020 6 2.91795e+01 1.15068e+00 606 2020 7 2.97856e+01 1.23295e+00 556 2020 8 3.09505e+01 1.46896e+00 365 2020 9 2.86835e+01 1.94046e+00 421 2020 10 2.55566e+01 8.62567e-01 677 2020 11 2.24350e+01 1.56203e+00 703 2020 12 1.62321e+01 1.83424e+00 660 2021 1 1.43882e+01 1.18564e+00 448 2021 2 1.59255e+01 1.48841e+00 466 2021 3 1.83590e+01 1.25725e+00 668 2021 4 2.15597e+01 1.21030e+00 640 2021 5 2.53334e+01 1.37571e+00 674 2021 6 2.76720e+01 1.20698e+00 393 2021 7 2.96092e+01 1.09482e+00 330 2021 8 3.02588e+01 9.81127e-01 443 2021 9 2.86867e+01 1.17905e+00 521 2021 10 2.64834e+01 1.43922e+00 606 2021 11 1.98518e+01 1.27058e+00 728 2021 12 1.81643e+01 9.18716e-01 628 2022 1 1.66130e+01 2.03559e+00 632 2022 2 1.51663e+01 1.77444e+00 530 2022 3 1.91171e+01 1.01984e+00 673 2022 4 2.27417e+01 1.10231e+00 515 2022 5 2.64451e+01 1.30084e+00 748 2022 6 2.97590e+01 1.14636e+00 674 2022 7 3.06830e+01 1.05385e+00 565 2022 8 3.09603e+01 1.14113e+00 537 2022 9 2.87122e+01 1.52407e+00 521 2022 10 2.40506e+01 1.25831e+00 843 2022 11 2.16420e+01 2.06529e+00 427 2022 12 1.74907e+01 2.27782e+00 791 2023 1 1.48509e+01 6.18271e-01 583 2023 2 1.67503e+01 1.31508e+00 528 2023 3 2.02969e+01 1.43722e+00 744 2023 4 2.25494e+01 8.74090e-01 506 2023 5 2.53197e+01 1.43726e+00 644 2023 6 2.71850e+01 1.45186e+00 606 2023 7 2.99470e+01 1.23440e+00 778 2023 8 3.13214e+01 9.69576e-01 709 2023 9 2.95441e+01 1.21187e+00 613 2023 10 2.43333e+01 1.27291e+00 772 2023 11 2.11055e+01 1.21756e+00 544 2023 12 1.53476e+01 1.48756e+00 352 2024 1 1.35448e+01 1.06638e+00 340 2024 2 1.51474e+01 7.98017e-01 432 2024 3 1.93565e+01 1.25240e+00 429 2024 4 2.14510e+01 1.42409e-01 48