YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 1.85982e+01 5.69818e-01 48 2000 3 2.03702e+01 9.24062e-01 198 2000 4 2.13957e+01 1.28767e+00 141 2000 5 2.60038e+01 1.86928e+00 169 2000 6 2.77740e+01 8.52244e-01 93 2000 7 2.93249e+01 9.63552e-01 96 2000 8 2.95023e+01 7.89289e-01 66 2000 9 2.51994e+01 2.27915e+00 80 2000 10 2.26738e+01 8.21268e-01 119 2000 11 2.14876e+01 2.74197e+00 96 2000 12 1.61110e+01 1.57793e-02 10 2001 1 1.18050e+01 5.64564e-01 48 2001 2 1.76824e+01 2.08287e+00 89 2001 3 1.50897e+01 1.12321e+00 86 2001 4 2.15030e+01 2.54128e+00 173 2001 5 2.53281e+01 1.25050e+00 208 2001 6 2.62316e+01 1.83622e+00 59 2001 7 2.93573e+01 8.76247e-01 56 2001 8 2.99468e+01 6.55497e-01 176 2001 9 2.55811e+01 2.33887e+00 136 2001 10 2.17560e+01 1.87975e+00 137 2001 11 1.95762e+01 1.06397e+00 160 2001 12 1.91861e+01 1.85866e+00 128 2002 1 1.71467e+01 1.48892e+00 18 2002 2 1.51550e+01 2.62844e+00 120 2002 3 1.67762e+01 4.81838e+00 26 2002 4 2.38706e+01 1.89211e+00 168 2002 5 2.56987e+01 2.43953e+00 196 2002 6 2.88402e+01 1.36826e-01 78 2002 7 2.94851e+01 1.43096e+00 434 2002 8 2.85761e+01 1.44849e+00 467 2002 9 2.81160e+01 1.29949e+00 439 2002 10 2.59976e+01 2.43005e+00 498 2002 11 1.92985e+01 2.22978e+00 351 2002 12 1.39737e+01 1.18618e+00 132 2003 1 1.15699e+01 1.53785e+00 384 2003 2 1.45125e+01 1.43881e+00 240 2003 3 2.03138e+01 2.31639e+00 282 2003 4 2.18561e+01 2.44945e+00 624 2003 5 2.64995e+01 1.46034e+00 611 2003 6 2.84097e+01 1.71270e+00 475 2003 7 2.95214e+01 1.29455e+00 403 2003 8 2.88566e+01 1.37414e+00 452 2003 9 2.76182e+01 1.49606e+00 457 2003 10 2.31322e+01 1.27166e+00 576 2003 11 2.10981e+01 2.05987e+00 688 2003 12 1.43632e+01 1.36922e+00 180 2004 1 1.31393e+01 9.62591e-01 233 2004 2 1.25301e+01 1.46789e+00 144 2004 3 1.84031e+01 2.38248e+00 687 2004 4 2.05423e+01 2.31068e+00 718 2004 5 2.63904e+01 1.69673e+00 863 2004 6 2.93069e+01 1.19576e+00 474 2004 7 3.00718e+01 1.43585e+00 516 2004 8 2.98168e+01 1.45855e+00 493 2004 9 2.67747e+01 1.89782e+00 482 2004 10 2.44612e+01 1.90074e+00 592 2004 11 2.11723e+01 2.85233e+00 394 2004 12 1.52090e+01 2.04787e+00 207 2005 1 1.27678e+01 2.21220e+00 252 2005 2 1.36701e+01 1.82833e+00 236 2005 3 1.64951e+01 2.10473e+00 465 2005 4 2.05129e+01 1.20608e+00 625 2005 5 2.51724e+01 2.14465e+00 768 2005 6 2.84463e+01 1.39504e+00 622 2005 7 3.01116e+01 1.51865e+00 613 2005 8 2.96835e+01 1.95032e+00 688 2005 9 2.76029e+01 1.46017e+00 621 2005 10 2.46071e+01 2.36047e+00 577 2005 11 2.01471e+01 1.97986e+00 394 2005 12 1.42667e+01 1.64639e+00 200 2006 1 1.45119e+01 1.99223e+00 327 2006 2 1.43007e+01 1.58649e+00 382 2006 3 1.85034e+01 1.49559e+00 663 2006 4 2.32341e+01 2.06804e+00 765 2006 5 2.49275e+01 1.95940e+00 789 2006 6 2.81499e+01 1.17357e+00 671 2006 7 2.98101e+01 1.82050e+00 545 2006 8 3.03534e+01 9.94864e-01 669 2006 9 2.79483e+01 1.78310e+00 618 2006 10 2.37034e+01 2.22806e+00 674 2006 11 1.78814e+01 1.63417e+00 292 2006 12 1.60444e+01 1.95210e+00 163 2007 1 1.28862e+01 1.82534e+00 188 2007 2 1.32311e+01 1.94881e+00 377 2007 3 1.91548e+01 2.22993e+00 677 2007 4 2.13872e+01 2.32327e+00 494 2007 5 2.43657e+01 1.43094e+00 740 2007 6 2.83266e+01 1.70206e+00 617 2007 7 2.96837e+01 1.58677e+00 453 2007 8 3.00697e+01 1.47192e+00 742 2007 9 2.80635e+01 1.73322e+00 618 2007 10 2.51259e+01 1.76067e+00 474 2007 11 1.78084e+01 1.73727e+00 673 2007 12 1.67467e+01 1.73710e+00 235 2008 1 1.37406e+01 2.30791e+00 145 2008 2 1.58951e+01 1.59725e+00 406 2008 3 1.73273e+01 2.01043e+00 617 2008 4 2.20616e+01 1.75326e+00 643 2008 5 2.51765e+01 2.06190e+00 691 2008 6 2.90242e+01 1.41979e+00 706 2008 7 2.91474e+01 1.55515e+00 544 2008 8 2.86889e+01 1.64421e+00 436 2008 9 2.69072e+01 2.22597e+00 617 2008 10 2.31127e+01 2.24480e+00 731 2008 11 1.59984e+01 2.56167e+00 484 2008 12 1.47669e+01 1.84706e+00 271 2009 1 1.38804e+01 2.39029e+00 330 2009 2 1.38347e+01 1.97596e+00 445 2009 3 1.88219e+01 2.55416e+00 505 2009 4 2.17952e+01 2.20692e+00 673 2009 5 2.62889e+01 1.51695e+00 541 2009 6 2.92766e+01 1.36801e+00 653 2009 7 2.87529e+01 1.33037e+00 536 2009 8 2.95801e+01 1.56960e+00 569 2009 9 2.80210e+01 9.92808e-01 552 2009 10 2.59970e+01 2.64133e+00 474 2009 11 1.85325e+01 1.35475e+00 316 2009 12 1.36227e+01 2.19462e+00 147 2010 1 1.22219e+01 3.04905e+00 315 2010 2 1.14902e+01 1.55016e+00 379 2010 3 1.57563e+01 1.94589e+00 503 2010 4 2.21113e+01 1.31468e+00 661 2010 5 2.72001e+01 2.14176e+00 721 2010 6 3.08946e+01 1.12954e+00 750 2010 7 2.98820e+01 1.59962e+00 618 2010 8 3.00516e+01 1.30835e+00 311 2010 9 2.87834e+01 1.42036e+00 640 2010 10 2.36557e+01 1.33282e+00 889 2010 11 1.90847e+01 1.71757e+00 578 2010 12 1.35750e+01 2.41208e+00 277 2011 1 1.10572e+01 1.57272e+00 380 2011 2 1.53430e+01 3.12661e+00 324 2011 3 1.93128e+01 1.85297e+00 542 2011 4 2.33592e+01 2.07415e+00 852 2011 5 2.57312e+01 2.27972e+00 966 2011 6 2.95705e+01 1.35468e+00 696 2011 7 2.97545e+01 1.28928e+00 627 2011 8 3.04975e+01 1.10027e+00 738 2011 9 2.74515e+01 1.08727e+00 670 2011 10 2.24644e+01 1.85655e+00 740 2011 11 1.73289e+01 1.21306e+00 484 2011 12 1.52649e+01 1.31081e+00 252 2012 1 1.50845e+01 2.11087e+00 453 2012 2 1.65772e+01 8.92303e-01 158 2012 3 2.18380e+01 2.35940e+00 686 2012 4 2.30602e+01 1.69525e+00 823 2012 5 2.67542e+01 1.46755e+00 809 2012 6 2.71668e+01 1.35350e+00 496 2012 7 2.96817e+01 1.33113e+00 502 2012 8 2.86638e+01 1.26210e+00 426 2012 9 2.74951e+01 1.85961e+00 485 2012 10 2.43625e+01 2.05318e+00 608 2012 11 1.79676e+01 1.46190e+00 591 2012 12 1.64669e+01 2.08692e+00 282 2013 1 1.49025e+01 1.61119e+00 303 2013 2 1.49084e+01 1.72552e+00 292 2013 3 1.54007e+01 2.11050e+00 579 2013 4 2.12700e+01 1.57779e+00 547 2013 5 2.53273e+01 2.48051e+00 593 2013 6 2.83949e+01 1.42329e+00 511 2013 7 2.88191e+01 1.95450e+00 288 2013 8 2.99572e+01 1.74165e+00 554 2013 9 2.89634e+01 1.72768e+00 675 2013 10 2.36549e+01 2.44484e+00 625 2013 11 1.89816e+01 2.57791e+00 335 2013 12 1.60731e+01 2.59355e+00 283 2014 1 1.19317e+01 1.37637e+00 228 2014 2 1.46989e+01 1.87301e+00 300 2014 3 1.72403e+01 1.62698e+00 486 2014 4 2.12341e+01 2.11008e+00 581 2014 5 2.58095e+01 1.64624e+00 628 2014 6 2.86485e+01 1.97959e+00 589 2014 7 2.94534e+01 1.39899e+00 608 2014 8 2.99235e+01 1.15243e+00 721 2014 9 2.84946e+01 1.75639e+00 394 2014 10 2.43852e+01 1.85304e+00 779 2014 11 1.59461e+01 2.18139e+00 315 2014 12 1.49600e+01 1.46418e+00 374 2015 1 1.37938e+01 1.11789e+00 362 2015 2 1.31518e+01 1.51701e+00 425 2015 3 1.91936e+01 2.66407e+00 477 2015 4 2.37376e+01 1.79322e+00 368 2015 5 2.68840e+01 1.95004e+00 911 2015 6 3.01364e+01 1.08277e+00 557 2015 7 2.92051e+01 2.07933e+00 507 2015 8 2.99157e+01 1.34487e+00 594 2015 9 2.74777e+01 2.11057e+00 311 2015 10 2.36288e+01 1.84229e+00 539 2015 11 2.14082e+01 3.72561e+00 440 2015 12 1.66013e+01 1.57343e+00 191 2016 1 1.28555e+01 1.31900e+00 303 2016 2 1.41154e+01 1.80027e+00 431 2016 3 1.87623e+01 1.71218e+00 416 2016 4 2.23647e+01 2.09488e+00 623 2016 5 2.61381e+01 1.78009e+00 733 2016 6 2.90649e+01 1.48726e+00 663 2016 7 3.11620e+01 1.15876e+00 758 2016 8 3.04245e+01 1.17553e+00 529 2016 9 2.90477e+01 1.37829e+00 635 2016 10 2.47334e+01 1.74725e+00 699 2016 11 1.98256e+01 2.83796e+00 614 2016 12 1.73384e+01 1.30458e+00 268 2017 1 1.50532e+01 2.67978e+00 237 2017 2 1.79510e+01 2.11745e+00 556 2017 3 1.89243e+01 2.89730e+00 638 2017 4 2.34135e+01 1.69293e+00 634 2017 5 2.47685e+01 1.98681e+00 538 2017 6 2.83282e+01 2.04233e+00 367 2017 7 3.04745e+01 1.43000e+00 428 2017 8 2.97642e+01 1.66557e+00 556 2017 9 2.80339e+01 1.75031e+00 592 2017 10 2.41501e+01 2.92947e+00 811 2017 11 1.93750e+01 1.64419e+00 611 2017 12 1.61152e+01 2.92308e+00 337 2018 1 1.14633e+01 1.90580e+00 286 2018 2 2.04386e+01 3.11437e+00 373 2018 3 1.80263e+01 2.07787e+00 561 2018 4 2.15028e+01 1.34002e+00 579 2018 5 2.59422e+01 1.81401e+00 591 2018 6 2.95703e+01 1.64791e+00 494 2018 7 3.02123e+01 1.12528e+00 463 2018 8 3.00098e+01 1.07826e+00 466 2018 9 3.02019e+01 1.29440e+00 797 2018 10 2.61391e+01 2.64251e+00 779 2018 11 1.88914e+01 2.75622e+00 184 2018 12 1.54229e+01 1.84836e+00 262 2019 1 1.40341e+01 2.05982e+00 432 2019 2 1.64216e+01 2.73989e+00 253 2019 3 1.79374e+01 2.00940e+00 531 2019 4 2.20366e+01 1.99840e+00 552 2019 5 2.79088e+01 1.98944e+00 871 2019 6 2.94372e+01 1.22268e+00 406 2019 7 2.97042e+01 1.34767e+00 464 2019 8 3.01773e+01 1.01227e+00 520 2019 9 2.90044e+01 1.40842e+00 790 2019 10 2.58525e+01 2.45445e+00 599 2019 11 1.75305e+01 1.88540e+00 540 2019 12 1.54459e+01 1.75714e+00 337 2020 1 1.48120e+01 2.05829e+00 486 2020 2 1.48300e+01 1.47625e+00 418 2020 3 2.15533e+01 4.06616e+00 601 2020 4 2.29321e+01 1.20417e+00 596 2020 5 2.46749e+01 1.52963e+00 624 2020 6 2.90398e+01 1.33486e+00 543 2020 7 3.01636e+01 1.17310e+00 436 2020 8 3.09462e+01 9.89785e-01 449 2020 9 2.79749e+01 2.21085e+00 328 2020 10 2.48362e+01 1.56134e+00 654 2020 11 2.08360e+01 2.15161e+00 669 2020 12 1.37870e+01 1.67102e+00 545 2021 1 1.38764e+01 1.71494e+00 432 2021 2 1.48999e+01 2.47065e+00 455 2021 3 1.82956e+01 1.74472e+00 556 2021 4 2.09428e+01 2.25665e+00 656 2021 5 2.53742e+01 1.98044e+00 600 2021 6 2.78645e+01 1.64912e+00 387 2021 7 2.95755e+01 1.27349e+00 433 2021 8 2.98569e+01 1.26577e+00 377 2021 9 2.78232e+01 1.23799e+00 533 2021 10 2.50378e+01 2.24641e+00 623 2021 11 1.76578e+01 1.75869e+00 683 2021 12 1.67466e+01 1.87228e+00 537 2022 1 1.41944e+01 2.85239e+00 627 2022 2 1.57696e+01 2.95884e+00 523 2022 3 1.91211e+01 1.50467e+00 664 2022 4 2.30969e+01 1.79528e+00 465 2022 5 2.65379e+01 1.49738e+00 716 2022 6 2.98236e+01 1.40624e+00 645 2022 7 3.03822e+01 1.37789e+00 536 2022 8 3.08669e+01 1.50458e+00 499 2022 9 2.81689e+01 1.92768e+00 453 2022 10 2.26418e+01 1.91787e+00 903 2022 11 2.08822e+01 2.87493e+00 479 2022 12 1.66313e+01 3.66884e+00 668 2023 1 1.44078e+01 1.44288e+00 616 2023 2 1.73153e+01 2.47563e+00 512 2023 3 1.98271e+01 2.81774e+00 584 2023 4 2.26880e+01 1.29130e+00 494 2023 5 2.54248e+01 1.93709e+00 623 2023 6 2.79366e+01 2.07765e+00 549 2023 7 3.05939e+01 1.16097e+00 574 2023 8 3.11225e+01 9.74762e-01 695 2023 9 2.88324e+01 1.69428e+00 637 2023 10 2.27916e+01 1.68321e+00 686 2023 11 1.99749e+01 1.71460e+00 428 2023 12 1.38839e+01 1.53919e+00 398 2024 1 1.31728e+01 1.42898e+00 324 2024 2 1.51096e+01 1.29325e+00 480 2024 3 1.96954e+01 1.15229e+00 477 2024 4 2.12048e+01 8.70503e-01 48