YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 1.78733e+01 4.28788e-01 32 2000 3 2.06638e+01 1.01251e+00 104 2000 4 2.21698e+01 1.57742e+00 113 2000 5 2.60617e+01 2.14974e+00 186 2000 6 2.86423e+01 8.08103e-01 94 2000 7 2.98917e+01 1.07190e+00 116 2000 8 2.94987e+01 8.78527e-01 56 2000 9 2.63552e+01 1.28548e+00 91 2000 10 2.27093e+01 1.46456e+00 199 2000 11 2.08480e+01 2.36445e+00 114 2000 12 1.69152e+01 7.66875e-02 25 2001 1 1.19969e+01 4.05593e-01 16 2001 2 1.79702e+01 8.12006e-01 50 2001 3 1.57677e+01 1.80643e+00 79 2001 4 2.10572e+01 2.19348e+00 152 2001 5 2.52370e+01 1.48035e+00 185 2001 6 2.68452e+01 7.55050e-01 64 2001 7 2.56156e+01 1.14303e-01 16 2001 8 2.86974e+01 1.81480e+00 168 2001 9 2.64505e+01 1.37400e+00 93 2001 10 2.18010e+01 1.65821e+00 130 2001 11 1.99324e+01 8.28059e-01 198 2001 12 1.99882e+01 1.63570e+00 145 2002 1 nan nan 0 2002 2 1.51914e+01 1.00631e+00 85 2002 3 1.72571e+01 3.97977e+00 55 2002 4 2.39473e+01 2.45006e+00 154 2002 5 2.62151e+01 1.23051e+00 124 2002 6 2.82122e+01 9.29006e-01 110 2002 7 2.91401e+01 1.40811e+00 419 2002 8 2.91712e+01 9.64891e-01 533 2002 9 2.86162e+01 8.25792e-01 417 2002 10 2.69278e+01 1.70819e+00 445 2002 11 2.04340e+01 2.31260e+00 336 2002 12 1.48253e+01 1.15563e+00 161 2003 1 1.31028e+01 1.47076e+00 319 2003 2 1.46731e+01 1.57854e+00 247 2003 3 1.94396e+01 1.96785e+00 261 2003 4 2.15334e+01 2.19080e+00 508 2003 5 2.61583e+01 1.14776e+00 564 2003 6 2.79575e+01 1.62530e+00 435 2003 7 2.88874e+01 1.49854e+00 378 2003 8 2.82680e+01 1.43406e+00 405 2003 9 2.76397e+01 1.03584e+00 441 2003 10 2.33548e+01 1.01758e+00 546 2003 11 2.16183e+01 1.75574e+00 602 2003 12 1.50878e+01 1.53079e+00 179 2004 1 1.35017e+01 1.02247e+00 280 2004 2 1.35948e+01 1.19143e+00 155 2004 3 1.81664e+01 2.00717e+00 559 2004 4 2.08520e+01 1.87045e+00 592 2004 5 2.62533e+01 1.93139e+00 801 2004 6 2.87515e+01 1.14010e+00 602 2004 7 2.90764e+01 1.38358e+00 541 2004 8 2.95396e+01 1.28549e+00 515 2004 9 2.70840e+01 2.05762e+00 546 2004 10 2.50549e+01 1.48994e+00 647 2004 11 2.18374e+01 2.50295e+00 519 2004 12 1.68290e+01 1.35128e+00 135 2005 1 1.35342e+01 1.37995e+00 173 2005 2 1.44958e+01 1.30963e+00 243 2005 3 1.67500e+01 1.78958e+00 460 2005 4 2.03136e+01 1.44532e+00 452 2005 5 2.48035e+01 2.38104e+00 727 2005 6 2.80532e+01 1.40124e+00 538 2005 7 2.97086e+01 1.49317e+00 514 2005 8 2.94824e+01 1.66712e+00 567 2005 9 2.78890e+01 1.44784e+00 635 2005 10 2.48474e+01 2.32115e+00 619 2005 11 2.04556e+01 1.64187e+00 326 2005 12 1.54860e+01 2.13710e+00 197 2006 1 1.55758e+01 1.40664e+00 380 2006 2 1.47387e+01 1.42445e+00 315 2006 3 1.86043e+01 1.23096e+00 526 2006 4 2.27586e+01 1.77443e+00 659 2006 5 2.49333e+01 1.90045e+00 709 2006 6 2.81749e+01 1.52250e+00 759 2006 7 2.98294e+01 1.42108e+00 538 2006 8 3.04459e+01 1.21475e+00 680 2006 9 2.85916e+01 1.50989e+00 538 2006 10 2.45468e+01 2.28671e+00 597 2006 11 1.91744e+01 1.51258e+00 285 2006 12 1.64501e+01 1.29819e+00 130 2007 1 1.50246e+01 1.51037e+00 175 2007 2 1.39721e+01 1.47511e+00 307 2007 3 1.90605e+01 1.60886e+00 599 2007 4 2.05698e+01 2.01900e+00 463 2007 5 2.44427e+01 9.55710e-01 711 2007 6 2.76514e+01 1.77058e+00 563 2007 7 2.93704e+01 1.54088e+00 503 2007 8 3.03216e+01 1.17335e+00 561 2007 9 2.81851e+01 1.50259e+00 468 2007 10 2.61131e+01 1.17024e+00 406 2007 11 1.90533e+01 1.23123e+00 484 2007 12 1.74378e+01 1.11103e+00 268 2008 1 1.49962e+01 1.57651e+00 110 2008 2 1.62857e+01 1.33226e+00 403 2008 3 1.79129e+01 1.58030e+00 539 2008 4 2.16933e+01 1.96339e+00 512 2008 5 2.46165e+01 2.23314e+00 618 2008 6 2.87125e+01 1.12475e+00 606 2008 7 2.87207e+01 1.22982e+00 538 2008 8 2.84866e+01 1.24055e+00 376 2008 9 2.75742e+01 1.99429e+00 518 2008 10 2.38060e+01 1.79612e+00 590 2008 11 1.75101e+01 2.01052e+00 429 2008 12 1.57959e+01 1.22461e+00 300 2009 1 1.54685e+01 1.92728e+00 316 2009 2 1.46387e+01 1.72226e+00 389 2009 3 1.79520e+01 2.25087e+00 507 2009 4 2.12391e+01 2.43686e+00 541 2009 5 2.54756e+01 1.37598e+00 575 2009 6 2.81812e+01 1.42202e+00 596 2009 7 2.84529e+01 1.21615e+00 577 2009 8 2.93506e+01 1.39513e+00 430 2009 9 2.81967e+01 1.04730e+00 503 2009 10 2.53733e+01 2.79043e+00 621 2009 11 1.92522e+01 1.42932e+00 272 2009 12 1.35231e+01 2.36553e+00 115 2010 1 1.35684e+01 1.45836e+00 175 2010 2 1.15730e+01 1.75461e+00 208 2010 3 1.51515e+01 1.92747e+00 340 2010 4 2.14561e+01 1.68769e+00 562 2010 5 2.68021e+01 2.22622e+00 747 2010 6 2.99560e+01 1.30829e+00 658 2010 7 2.94570e+01 1.39032e+00 537 2010 8 2.93784e+01 1.41825e+00 352 2010 9 2.90910e+01 1.31216e+00 655 2010 10 2.41527e+01 1.16379e+00 703 2010 11 1.95959e+01 1.41769e+00 525 2010 12 1.43646e+01 2.49476e+00 355 2011 1 1.15307e+01 1.08836e+00 292 2011 2 1.48816e+01 2.47625e+00 162 2011 3 1.91105e+01 1.96408e+00 551 2011 4 2.34232e+01 1.64037e+00 646 2011 5 2.55446e+01 1.92500e+00 869 2011 6 2.93060e+01 1.64635e+00 637 2011 7 2.97570e+01 9.92069e-01 411 2011 8 3.00538e+01 1.03259e+00 753 2011 9 2.75990e+01 9.79077e-01 592 2011 10 2.30327e+01 2.05777e+00 575 2011 11 1.85673e+01 9.25565e-01 368 2011 12 1.60977e+01 7.82295e-01 285 2012 1 1.57767e+01 1.60286e+00 366 2012 2 1.54763e+01 1.54694e+00 79 2012 3 2.13472e+01 2.30090e+00 489 2012 4 2.28498e+01 1.44439e+00 708 2012 5 2.69106e+01 1.47214e+00 803 2012 6 2.71688e+01 1.48231e+00 549 2012 7 2.88472e+01 1.41871e+00 429 2012 8 2.87062e+01 1.07568e+00 402 2012 9 2.78577e+01 1.53961e+00 439 2012 10 2.47126e+01 1.99906e+00 637 2012 11 1.83797e+01 1.40609e+00 506 2012 12 1.68886e+01 1.35672e+00 233 2013 1 1.61848e+01 1.37859e+00 165 2013 2 1.59998e+01 1.51321e+00 293 2013 3 1.63864e+01 1.76198e+00 375 2013 4 2.08670e+01 1.48846e+00 462 2013 5 2.47375e+01 2.25239e+00 491 2013 6 2.81234e+01 1.52270e+00 514 2013 7 2.82777e+01 1.36539e+00 280 2013 8 2.93537e+01 1.48625e+00 479 2013 9 2.89926e+01 1.47612e+00 669 2013 10 2.47338e+01 1.70649e+00 568 2013 11 2.00985e+01 2.29313e+00 372 2013 12 1.69129e+01 1.96120e+00 288 2014 1 1.27312e+01 1.14121e+00 194 2014 2 1.47048e+01 1.41966e+00 247 2014 3 1.70773e+01 1.44582e+00 428 2014 4 2.08198e+01 1.61169e+00 461 2014 5 2.49151e+01 1.94187e+00 546 2014 6 2.84945e+01 1.46342e+00 623 2014 7 2.85240e+01 1.34256e+00 577 2014 8 2.96667e+01 1.02817e+00 604 2014 9 2.88533e+01 1.55571e+00 487 2014 10 2.47416e+01 1.78867e+00 793 2014 11 1.73297e+01 2.38300e+00 338 2014 12 1.56759e+01 1.26049e+00 367 2015 1 1.43197e+01 1.26128e+00 266 2015 2 1.41404e+01 1.23840e+00 412 2015 3 1.88910e+01 2.04717e+00 399 2015 4 2.25313e+01 2.12461e+00 299 2015 5 2.60911e+01 2.01726e+00 772 2015 6 2.94927e+01 1.71182e+00 524 2015 7 2.93796e+01 1.50464e+00 543 2015 8 2.99335e+01 1.02180e+00 528 2015 9 2.78806e+01 1.20378e+00 357 2015 10 2.38209e+01 1.49723e+00 529 2015 11 2.18481e+01 3.01092e+00 544 2015 12 1.75684e+01 8.32941e-01 153 2016 1 1.43572e+01 1.02069e+00 208 2016 2 1.48661e+01 2.03172e+00 393 2016 3 1.88438e+01 1.80296e+00 343 2016 4 2.16168e+01 1.66474e+00 528 2016 5 2.52607e+01 1.39077e+00 624 2016 6 2.89429e+01 1.40125e+00 698 2016 7 3.09187e+01 9.81818e-01 732 2016 8 3.01498e+01 1.50519e+00 587 2016 9 2.89309e+01 1.19863e+00 556 2016 10 2.53095e+01 1.65320e+00 781 2016 11 2.08426e+01 2.21687e+00 442 2016 12 1.78151e+01 1.31965e+00 269 2017 1 1.66339e+01 1.98183e+00 352 2017 2 1.81272e+01 1.67917e+00 479 2017 3 1.88626e+01 2.40631e+00 571 2017 4 2.32716e+01 1.50575e+00 627 2017 5 2.45268e+01 2.04847e+00 463 2017 6 2.77111e+01 1.93042e+00 360 2017 7 3.00145e+01 1.60721e+00 502 2017 8 2.97411e+01 1.12200e+00 474 2017 9 2.78747e+01 1.64286e+00 606 2017 10 2.52372e+01 1.85781e+00 622 2017 11 2.02540e+01 1.60829e+00 607 2017 12 1.72550e+01 2.20808e+00 225 2018 1 1.22588e+01 1.09371e+00 180 2018 2 1.91431e+01 2.88911e+00 227 2018 3 1.88018e+01 1.51425e+00 547 2018 4 2.14563e+01 1.21382e+00 585 2018 5 2.57957e+01 1.81544e+00 596 2018 6 2.84603e+01 1.53073e+00 502 2018 7 2.95314e+01 1.22000e+00 569 2018 8 2.88470e+01 1.57175e+00 381 2018 9 2.98144e+01 1.36311e+00 735 2018 10 2.67117e+01 2.51867e+00 669 2018 11 1.97006e+01 3.06349e+00 231 2018 12 1.55822e+01 1.57607e+00 243 2019 1 1.49151e+01 1.87942e+00 379 2019 2 1.66849e+01 2.11574e+00 205 2019 3 1.81381e+01 1.59293e+00 419 2019 4 2.16127e+01 2.24092e+00 497 2019 5 2.74126e+01 2.24555e+00 855 2019 6 2.85241e+01 1.65951e+00 521 2019 7 2.98384e+01 1.29571e+00 497 2019 8 3.01130e+01 1.19592e+00 457 2019 9 2.94527e+01 1.20024e+00 908 2019 10 2.66608e+01 2.22379e+00 557 2019 11 1.91833e+01 2.10653e+00 464 2019 12 1.64347e+01 1.51476e+00 328 2020 1 1.53623e+01 1.41954e+00 405 2020 2 1.59082e+01 1.46753e+00 438 2020 3 2.17580e+01 3.51256e+00 592 2020 4 2.31441e+01 1.34204e+00 369 2020 5 2.46240e+01 1.62882e+00 579 2020 6 2.89692e+01 1.14134e+00 423 2020 7 2.91026e+01 8.89323e-01 330 2020 8 3.09089e+01 8.01281e-01 410 2020 9 2.85563e+01 2.09930e+00 394 2020 10 2.50301e+01 1.25851e+00 570 2020 11 2.15178e+01 1.70914e+00 731 2020 12 1.57968e+01 1.53125e+00 597 2021 1 1.46118e+01 1.85410e+00 356 2021 2 1.52969e+01 2.07983e+00 336 2021 3 1.85145e+01 1.50214e+00 491 2021 4 2.11881e+01 1.63138e+00 603 2021 5 2.51545e+01 1.85690e+00 708 2021 6 2.82215e+01 1.36551e+00 440 2021 7 2.97301e+01 1.27502e+00 436 2021 8 2.98097e+01 1.28769e+00 441 2021 9 2.78020e+01 1.12525e+00 521 2021 10 2.55057e+01 1.63533e+00 448 2021 11 1.89443e+01 1.63531e+00 647 2021 12 1.79242e+01 1.42719e+00 386 2022 1 1.53626e+01 3.16435e+00 577 2022 2 1.57435e+01 2.22544e+00 487 2022 3 1.93505e+01 1.11299e+00 666 2022 4 2.28833e+01 1.45765e+00 427 2022 5 2.62154e+01 1.34226e+00 653 2022 6 2.98152e+01 1.52614e+00 432 2022 7 3.03376e+01 1.16248e+00 465 2022 8 3.01002e+01 1.62048e+00 417 2022 9 2.81380e+01 2.17089e+00 537 2022 10 2.33776e+01 1.65832e+00 682 2022 11 2.10701e+01 2.20224e+00 417 2022 12 1.69360e+01 3.07400e+00 551 2023 1 1.58079e+01 1.50259e+00 691 2023 2 1.80238e+01 2.07022e+00 563 2023 3 2.02353e+01 1.77884e+00 502 2023 4 2.28980e+01 1.07159e+00 454 2023 5 2.51428e+01 1.71470e+00 557 2023 6 2.77633e+01 1.85951e+00 537 2023 7 3.01056e+01 1.03358e+00 496 2023 8 3.10299e+01 1.09328e+00 588 2023 9 2.90510e+01 1.36638e+00 544 2023 10 2.36654e+01 1.47366e+00 685 2023 11 1.98471e+01 1.71628e+00 436 2023 12 1.43125e+01 1.19814e+00 337 2024 1 1.37773e+01 1.30814e+00 377 2024 2 1.54010e+01 1.31821e+00 484 2024 3 1.95416e+01 1.29036e+00 350 2024 4 2.05102e+01 8.42391e-01 32