YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 1.75221e+01 2.08688e-01 48 2000 3 2.02179e+01 1.24653e+00 172 2000 4 2.15995e+01 1.39276e+00 151 2000 5 2.60005e+01 2.00022e+00 208 2000 6 2.78760e+01 1.07312e+00 96 2000 7 2.97073e+01 9.79455e-01 138 2000 8 2.94496e+01 1.79469e-01 48 2000 9 2.55836e+01 1.56988e+00 64 2000 10 2.23805e+01 1.05828e+00 208 2000 11 2.06254e+01 2.87765e+00 144 2000 12 1.45355e+01 1.48816e+00 32 2001 1 1.25658e+01 7.34635e-01 32 2001 2 1.72619e+01 9.42128e-01 48 2001 3 1.61312e+01 2.48130e+00 106 2001 4 2.06663e+01 2.07430e+00 196 2001 5 2.49712e+01 1.08834e+00 201 2001 6 2.65777e+01 8.66413e-01 64 2001 7 2.95398e+01 7.75515e-01 32 2001 8 2.92214e+01 1.33987e+00 174 2001 9 2.61769e+01 1.39126e+00 150 2001 10 2.27521e+01 1.61853e+00 135 2001 11 1.94321e+01 6.61144e-01 159 2001 12 1.88617e+01 1.66401e+00 115 2002 1 nan nan 0 2002 2 1.49474e+01 8.82495e-01 108 2002 3 1.56598e+01 2.79751e+00 48 2002 4 2.38661e+01 1.91404e+00 176 2002 5 2.60699e+01 1.55347e+00 180 2002 6 2.80242e+01 1.47994e+00 128 2002 7 2.92162e+01 2.03052e+00 464 2002 8 2.91382e+01 1.08093e+00 559 2002 9 2.83008e+01 9.09887e-01 433 2002 10 2.66080e+01 1.91168e+00 559 2002 11 2.00099e+01 2.55506e+00 444 2002 12 1.46518e+01 1.01137e+00 234 2003 1 1.20727e+01 1.40927e+00 502 2003 2 1.40850e+01 1.46374e+00 262 2003 3 2.00918e+01 1.77908e+00 283 2003 4 2.13603e+01 2.34475e+00 599 2003 5 2.63059e+01 1.36007e+00 599 2003 6 2.83344e+01 1.74550e+00 435 2003 7 2.91543e+01 1.17495e+00 325 2003 8 2.85050e+01 1.42344e+00 496 2003 9 2.79884e+01 1.53782e+00 535 2003 10 2.33978e+01 1.22501e+00 619 2003 11 2.11049e+01 1.88460e+00 658 2003 12 1.47059e+01 1.72785e+00 367 2004 1 1.31622e+01 1.79633e+00 349 2004 2 1.26172e+01 9.91856e-01 145 2004 3 1.82451e+01 1.84038e+00 618 2004 4 2.05032e+01 1.65565e+00 670 2004 5 2.60711e+01 1.81950e+00 911 2004 6 2.89965e+01 1.45289e+00 668 2004 7 2.95914e+01 1.79771e+00 457 2004 8 2.97084e+01 1.14971e+00 576 2004 9 2.72956e+01 1.95210e+00 517 2004 10 2.48856e+01 1.64041e+00 691 2004 11 2.15369e+01 2.61004e+00 575 2004 12 1.53672e+01 2.01062e+00 319 2005 1 1.36667e+01 1.25675e+00 265 2005 2 1.38100e+01 1.34183e+00 217 2005 3 1.64223e+01 1.83856e+00 506 2005 4 2.04272e+01 9.45794e-01 621 2005 5 2.46491e+01 2.18261e+00 749 2005 6 2.81188e+01 1.17719e+00 640 2005 7 2.97816e+01 1.68399e+00 550 2005 8 2.94003e+01 1.56356e+00 671 2005 9 2.80997e+01 1.15847e+00 701 2005 10 2.43776e+01 2.86952e+00 764 2005 11 1.96897e+01 1.89994e+00 559 2005 12 1.48003e+01 1.69906e+00 359 2006 1 1.45304e+01 1.31061e+00 376 2006 2 1.42942e+01 1.26225e+00 448 2006 3 1.81951e+01 1.13813e+00 662 2006 4 2.27594e+01 1.98813e+00 743 2006 5 2.49903e+01 1.49390e+00 768 2006 6 2.83007e+01 1.30959e+00 788 2006 7 3.01220e+01 1.23604e+00 611 2006 8 3.05391e+01 1.18120e+00 791 2006 9 2.82330e+01 1.64861e+00 694 2006 10 2.44588e+01 2.05525e+00 741 2006 11 1.79902e+01 1.95247e+00 385 2006 12 1.55513e+01 1.43996e+00 253 2007 1 1.38330e+01 1.35777e+00 167 2007 2 1.34994e+01 1.47244e+00 292 2007 3 1.86974e+01 1.70135e+00 675 2007 4 2.05649e+01 2.00388e+00 520 2007 5 2.46315e+01 9.72162e-01 864 2007 6 2.79448e+01 1.45966e+00 516 2007 7 2.93843e+01 1.58160e+00 509 2007 8 3.02295e+01 1.28477e+00 671 2007 9 2.84785e+01 1.68778e+00 644 2007 10 2.59948e+01 1.32533e+00 456 2007 11 1.88015e+01 1.41870e+00 720 2007 12 1.69517e+01 1.29905e+00 339 2008 1 1.31674e+01 1.86204e+00 190 2008 2 1.58188e+01 9.73677e-01 364 2008 3 1.74368e+01 1.76968e+00 593 2008 4 2.16025e+01 1.54651e+00 627 2008 5 2.50669e+01 1.83510e+00 719 2008 6 2.91739e+01 1.13447e+00 651 2008 7 2.90990e+01 1.09351e+00 494 2008 8 2.80695e+01 1.72673e+00 388 2008 9 2.72543e+01 1.97386e+00 624 2008 10 2.35062e+01 2.05180e+00 853 2008 11 1.73460e+01 2.13342e+00 560 2008 12 1.47422e+01 1.42256e+00 342 2009 1 1.38452e+01 2.00339e+00 443 2009 2 1.39180e+01 1.49849e+00 506 2009 3 1.81385e+01 2.45269e+00 479 2009 4 2.15180e+01 2.03245e+00 673 2009 5 2.57796e+01 1.46343e+00 493 2009 6 2.79245e+01 1.44252e+00 655 2009 7 2.87728e+01 1.17801e+00 584 2009 8 2.96262e+01 1.25443e+00 540 2009 9 2.80952e+01 1.08782e+00 560 2009 10 2.47721e+01 2.59170e+00 664 2009 11 1.93196e+01 1.29376e+00 388 2009 12 1.44043e+01 2.25508e+00 145 2010 1 1.13302e+01 2.37577e+00 375 2010 2 1.25071e+01 1.34033e+00 435 2010 3 1.54233e+01 1.90757e+00 380 2010 4 2.18305e+01 1.34813e+00 697 2010 5 2.67561e+01 2.26690e+00 701 2010 6 3.04889e+01 1.23478e+00 713 2010 7 2.98334e+01 1.74277e+00 631 2010 8 2.99647e+01 1.51063e+00 330 2010 9 2.91634e+01 1.28895e+00 740 2010 10 2.40857e+01 1.19667e+00 907 2010 11 1.93151e+01 1.42174e+00 653 2010 12 1.40293e+01 2.96410e+00 476 2011 1 1.11772e+01 1.17639e+00 431 2011 2 1.42505e+01 2.14129e+00 232 2011 3 1.91038e+01 1.47031e+00 497 2011 4 2.31855e+01 1.80825e+00 825 2011 5 2.54173e+01 1.67513e+00 872 2011 6 2.95940e+01 9.75692e-01 641 2011 7 2.99536e+01 1.24686e+00 605 2011 8 3.04890e+01 1.00266e+00 664 2011 9 2.75877e+01 1.00276e+00 634 2011 10 2.35373e+01 1.74077e+00 713 2011 11 1.81709e+01 8.78593e-01 423 2011 12 1.61385e+01 8.34822e-01 294 2012 1 1.51715e+01 1.51406e+00 491 2012 2 1.53097e+01 1.30595e+00 180 2012 3 2.11408e+01 2.22798e+00 654 2012 4 2.31123e+01 1.03923e+00 857 2012 5 2.65362e+01 1.13768e+00 681 2012 6 2.71640e+01 1.38983e+00 540 2012 7 2.95520e+01 1.42412e+00 504 2012 8 2.87819e+01 1.47787e+00 363 2012 9 2.78287e+01 1.57807e+00 520 2012 10 2.45354e+01 2.07268e+00 705 2012 11 1.85419e+01 1.25489e+00 624 2012 12 1.60818e+01 1.80371e+00 292 2013 1 1.52673e+01 1.07654e+00 239 2013 2 1.57826e+01 1.10542e+00 337 2013 3 1.63011e+01 1.49939e+00 665 2013 4 2.12023e+01 1.62473e+00 501 2013 5 2.47824e+01 1.94203e+00 608 2013 6 2.82919e+01 1.43458e+00 502 2013 7 2.79381e+01 1.67317e+00 290 2013 8 2.98436e+01 1.62540e+00 479 2013 9 2.90728e+01 1.69296e+00 825 2013 10 2.44233e+01 1.74093e+00 634 2013 11 1.92746e+01 2.47433e+00 336 2013 12 1.63908e+01 1.55730e+00 252 2014 1 1.25256e+01 1.15243e+00 252 2014 2 1.42817e+01 1.81083e+00 286 2014 3 1.66633e+01 1.58943e+00 458 2014 4 2.03925e+01 1.86934e+00 632 2014 5 2.50595e+01 2.08907e+00 679 2014 6 2.86400e+01 1.53474e+00 600 2014 7 2.93349e+01 8.17373e-01 573 2014 8 2.94974e+01 1.49046e+00 759 2014 9 2.89277e+01 1.36185e+00 441 2014 10 2.46782e+01 1.53678e+00 855 2014 11 1.70315e+01 2.42655e+00 483 2014 12 1.59250e+01 1.24260e+00 423 2015 1 1.38461e+01 1.65118e+00 400 2015 2 1.35834e+01 1.29797e+00 418 2015 3 1.88466e+01 1.91408e+00 451 2015 4 2.28992e+01 2.12402e+00 244 2015 5 2.67021e+01 1.88817e+00 786 2015 6 2.98700e+01 1.26102e+00 564 2015 7 2.97357e+01 1.55858e+00 498 2015 8 3.02495e+01 1.23201e+00 510 2015 9 2.78994e+01 1.52078e+00 370 2015 10 2.38864e+01 1.38796e+00 634 2015 11 2.14870e+01 2.90444e+00 442 2015 12 1.73947e+01 1.05402e+00 255 2016 1 1.43695e+01 1.60543e+00 384 2016 2 1.47401e+01 1.60041e+00 409 2016 3 1.89389e+01 1.83795e+00 410 2016 4 2.19888e+01 1.78490e+00 647 2016 5 2.55302e+01 1.54127e+00 701 2016 6 2.90922e+01 1.33681e+00 681 2016 7 3.10256e+01 1.16756e+00 844 2016 8 3.08402e+01 1.38319e+00 563 2016 9 2.93424e+01 1.09574e+00 654 2016 10 2.56907e+01 1.88336e+00 768 2016 11 2.05884e+01 2.35372e+00 570 2016 12 1.70485e+01 1.56438e+00 291 2017 1 1.57111e+01 1.73156e+00 252 2017 2 1.77206e+01 1.87969e+00 583 2017 3 1.85420e+01 2.15648e+00 649 2017 4 2.33195e+01 1.26665e+00 700 2017 5 2.48489e+01 1.67800e+00 581 2017 6 2.82330e+01 1.83955e+00 345 2017 7 3.01524e+01 1.53460e+00 499 2017 8 2.97859e+01 1.39272e+00 452 2017 9 2.80350e+01 1.49594e+00 647 2017 10 2.47711e+01 2.31096e+00 785 2017 11 1.97645e+01 1.57565e+00 665 2017 12 1.65829e+01 2.12111e+00 352 2018 1 1.14112e+01 1.37748e+00 280 2018 2 1.84517e+01 3.54901e+00 329 2018 3 1.83668e+01 1.52607e+00 601 2018 4 2.13621e+01 1.34805e+00 672 2018 5 2.55013e+01 1.90929e+00 559 2018 6 2.86277e+01 1.45940e+00 370 2018 7 3.01267e+01 1.04428e+00 559 2018 8 2.97015e+01 1.31928e+00 577 2018 9 3.00871e+01 1.22672e+00 728 2018 10 2.69296e+01 2.66466e+00 733 2018 11 1.93436e+01 1.94286e+00 229 2018 12 1.54201e+01 1.81074e+00 280 2019 1 1.48234e+01 1.87301e+00 416 2019 2 1.62743e+01 1.70042e+00 178 2019 3 1.80693e+01 1.80548e+00 441 2019 4 2.21209e+01 1.57634e+00 512 2019 5 2.72599e+01 2.16526e+00 916 2019 6 2.91523e+01 1.31307e+00 450 2019 7 2.99316e+01 1.88378e+00 421 2019 8 3.02341e+01 1.06878e+00 603 2019 9 2.91464e+01 1.11751e+00 997 2019 10 2.69470e+01 2.06525e+00 620 2019 11 1.85082e+01 2.32572e+00 584 2019 12 1.60787e+01 1.00806e+00 365 2020 1 1.53664e+01 1.33730e+00 443 2020 2 1.52160e+01 1.18696e+00 416 2020 3 2.08044e+01 3.38915e+00 516 2020 4 2.30146e+01 9.19223e-01 482 2020 5 2.45284e+01 1.43821e+00 619 2020 6 2.89056e+01 1.48446e+00 465 2020 7 2.95527e+01 1.20335e+00 437 2020 8 3.08629e+01 7.66855e-01 464 2020 9 2.81585e+01 2.20122e+00 424 2020 10 2.52520e+01 1.19444e+00 646 2020 11 2.15770e+01 1.66194e+00 764 2020 12 1.50858e+01 1.54174e+00 726 2021 1 1.39277e+01 1.66434e+00 430 2021 2 1.54016e+01 2.12514e+00 400 2021 3 1.81209e+01 1.22472e+00 510 2021 4 2.10401e+01 1.73005e+00 654 2021 5 2.53304e+01 1.47458e+00 704 2021 6 2.80134e+01 1.11268e+00 377 2021 7 2.96986e+01 1.36453e+00 454 2021 8 2.98264e+01 1.48417e+00 576 2021 9 2.81015e+01 1.28291e+00 521 2021 10 2.52718e+01 1.95090e+00 639 2021 11 1.86998e+01 1.45291e+00 731 2021 12 1.72313e+01 1.14967e+00 411 2022 1 1.48926e+01 2.37424e+00 651 2022 2 1.53416e+01 2.45975e+00 506 2022 3 1.91443e+01 1.04234e+00 638 2022 4 2.28597e+01 1.50161e+00 533 2022 5 2.63165e+01 1.31010e+00 689 2022 6 2.98999e+01 1.47554e+00 643 2022 7 3.06463e+01 1.14919e+00 437 2022 8 3.06591e+01 1.33881e+00 420 2022 9 2.81076e+01 2.06799e+00 608 2022 10 2.32745e+01 1.56344e+00 818 2022 11 2.11378e+01 2.28472e+00 445 2022 12 1.60715e+01 3.19344e+00 731 2023 1 1.47477e+01 8.58751e-01 539 2023 2 1.70595e+01 1.70897e+00 508 2023 3 2.04548e+01 1.97890e+00 580 2023 4 2.25929e+01 1.08756e+00 546 2023 5 2.53740e+01 1.61979e+00 592 2023 6 2.76784e+01 1.65218e+00 528 2023 7 2.99343e+01 1.08327e+00 658 2023 8 3.10653e+01 1.17832e+00 700 2023 9 2.91676e+01 1.31931e+00 614 2023 10 2.37229e+01 1.43825e+00 777 2023 11 2.00616e+01 1.67785e+00 530 2023 12 1.49274e+01 1.52015e+00 377 2024 1 1.33507e+01 9.03018e-01 320 2024 2 1.49358e+01 1.18946e+00 512 2024 3 1.95639e+01 1.19323e+00 436 2024 4 2.04462e+01 2.58145e-01 32