YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 1.75641e+01 8.07866e-02 11 2000 3 1.95006e+01 7.76176e-01 108 2000 4 2.10604e+01 1.46905e+00 156 2000 5 2.47753e+01 1.55219e+00 166 2000 6 2.70401e+01 1.21335e+00 102 2000 7 2.89871e+01 6.72366e-01 128 2000 8 3.03697e+01 3.35632e-02 16 2000 9 2.72525e+01 6.07165e-01 83 2000 10 2.36830e+01 9.48341e-01 225 2000 11 2.27626e+01 1.64336e+00 148 2000 12 1.64766e+01 1.91187e+00 128 2001 1 1.50268e+01 6.26350e-01 38 2001 2 1.76252e+01 7.79749e-01 69 2001 3 1.79590e+01 1.52848e+00 110 2001 4 2.02342e+01 1.40475e+00 171 2001 5 2.33983e+01 1.56975e+00 272 2001 6 2.61449e+01 1.17695e+00 64 2001 7 2.76381e+01 1.45540e+00 42 2001 8 2.83274e+01 1.27796e+00 176 2001 9 2.68582e+01 1.43407e+00 116 2001 10 2.34395e+01 1.82652e+00 128 2001 11 2.10251e+01 6.69166e-01 196 2001 12 2.02933e+01 1.87336e+00 148 2002 1 1.53216e+01 8.23515e-01 31 2002 2 1.64172e+01 2.33785e-01 64 2002 3 1.58281e+01 8.20411e-01 48 2002 4 2.24814e+01 2.17781e+00 139 2002 5 2.56215e+01 1.06404e+00 192 2002 6 2.69461e+01 1.77947e+00 113 2002 7 2.87554e+01 1.03280e+00 546 2002 8 2.88063e+01 1.30848e+00 486 2002 9 2.85721e+01 9.34049e-01 460 2002 10 2.73206e+01 1.74215e+00 551 2002 11 2.23113e+01 2.06807e+00 508 2002 12 1.67234e+01 1.11554e+00 328 2003 1 1.47838e+01 9.03862e-01 559 2003 2 1.50124e+01 1.27298e+00 273 2003 3 1.93330e+01 1.18710e+00 234 2003 4 2.05112e+01 1.34062e+00 580 2003 5 2.52891e+01 1.44048e+00 673 2003 6 2.75281e+01 1.36286e+00 513 2003 7 2.88349e+01 1.20856e+00 397 2003 8 2.82747e+01 1.08982e+00 537 2003 9 2.83726e+01 1.04329e+00 457 2003 10 2.45742e+01 7.52552e-01 656 2003 11 2.24979e+01 1.29145e+00 839 2003 12 1.70114e+01 1.73571e+00 418 2004 1 1.51644e+01 9.63314e-01 375 2004 2 1.44604e+01 1.09888e+00 208 2004 3 1.77505e+01 1.68074e+00 596 2004 4 2.01575e+01 1.27390e+00 539 2004 5 2.51315e+01 1.67340e+00 912 2004 6 2.83491e+01 1.28720e+00 641 2004 7 2.92231e+01 1.06737e+00 599 2004 8 2.93435e+01 1.12835e+00 598 2004 9 2.77739e+01 1.80529e+00 496 2004 10 2.51578e+01 1.22153e+00 679 2004 11 2.28699e+01 2.21125e+00 560 2004 12 1.74387e+01 2.20547e+00 424 2005 1 1.52625e+01 1.34242e+00 373 2005 2 1.57752e+01 7.77805e-01 320 2005 3 1.70211e+01 1.19798e+00 450 2005 4 1.98658e+01 1.28535e+00 581 2005 5 2.40754e+01 1.97425e+00 842 2005 6 2.74027e+01 1.40958e+00 548 2005 7 2.91447e+01 1.55418e+00 628 2005 8 2.96144e+01 1.49818e+00 551 2005 9 2.84686e+01 1.10942e+00 681 2005 10 2.55979e+01 1.96130e+00 797 2005 11 2.12742e+01 1.67303e+00 521 2005 12 1.71633e+01 1.82168e+00 456 2006 1 1.62545e+01 1.02633e+00 382 2006 2 1.60389e+01 1.14184e+00 369 2006 3 1.82365e+01 1.07893e+00 657 2006 4 2.16420e+01 1.61633e+00 731 2006 5 2.41499e+01 1.17984e+00 825 2006 6 2.76698e+01 1.60114e+00 799 2006 7 2.96709e+01 1.36637e+00 606 2006 8 3.03262e+01 8.84550e-01 723 2006 9 2.90466e+01 1.09086e+00 577 2006 10 2.62287e+01 1.68995e+00 692 2006 11 1.97607e+01 2.05777e+00 615 2006 12 1.72409e+01 1.17104e+00 286 2007 1 1.62845e+01 1.12979e+00 232 2007 2 1.51132e+01 9.93133e-01 415 2007 3 1.82119e+01 1.07116e+00 652 2007 4 2.03570e+01 1.20894e+00 482 2007 5 2.34599e+01 1.00830e+00 821 2007 6 2.71422e+01 1.62927e+00 555 2007 7 2.91533e+01 1.12002e+00 545 2007 8 2.99332e+01 1.19581e+00 662 2007 9 2.87201e+01 1.39457e+00 535 2007 10 2.64694e+01 9.57346e-01 484 2007 11 2.07364e+01 1.45911e+00 758 2007 12 1.90376e+01 1.07728e+00 400 2008 1 1.64633e+01 1.99105e+00 333 2008 2 1.70484e+01 1.13012e+00 473 2008 3 1.80375e+01 1.17526e+00 492 2008 4 2.08840e+01 1.14655e+00 581 2008 5 2.38525e+01 1.64420e+00 740 2008 6 2.81027e+01 9.37175e-01 626 2008 7 2.85595e+01 1.43162e+00 536 2008 8 2.79013e+01 1.03631e+00 480 2008 9 2.76630e+01 1.31454e+00 632 2008 10 2.48120e+01 1.58195e+00 779 2008 11 1.90539e+01 1.73909e+00 628 2008 12 1.71385e+01 9.23706e-01 323 2009 1 1.67183e+01 1.59477e+00 453 2009 2 1.50441e+01 1.10286e+00 537 2009 3 1.78383e+01 1.68922e+00 498 2009 4 2.07601e+01 1.60283e+00 547 2009 5 2.46937e+01 1.07827e+00 655 2009 6 2.64632e+01 9.71797e-01 641 2009 7 2.72891e+01 1.13741e+00 495 2009 8 2.89796e+01 8.45212e-01 490 2009 9 2.79919e+01 1.00752e+00 441 2009 10 2.61949e+01 1.85526e+00 666 2009 11 2.13916e+01 1.11962e+00 507 2009 12 1.66935e+01 1.60701e+00 134 2010 1 1.44906e+01 1.85512e+00 458 2010 2 1.39202e+01 7.12323e-01 422 2010 3 1.56692e+01 1.14691e+00 496 2010 4 2.03459e+01 1.31844e+00 526 2010 5 2.59942e+01 2.22192e+00 750 2010 6 2.93546e+01 1.16845e+00 723 2010 7 2.91247e+01 1.10914e+00 586 2010 8 2.90280e+01 1.46030e+00 357 2010 9 2.89809e+01 1.05680e+00 781 2010 10 2.50949e+01 9.60436e-01 953 2010 11 2.14622e+01 9.67622e-01 729 2010 12 1.62234e+01 2.46631e+00 638 2011 1 1.33251e+01 1.06843e+00 454 2011 2 1.46326e+01 1.17859e+00 181 2011 3 1.84606e+01 1.30655e+00 526 2011 4 2.22071e+01 1.40280e+00 813 2011 5 2.46952e+01 1.33785e+00 969 2011 6 2.85724e+01 1.20111e+00 784 2011 7 2.95769e+01 8.71548e-01 419 2011 8 2.95652e+01 1.34154e+00 815 2011 9 2.82179e+01 6.24608e-01 620 2011 10 2.47465e+01 1.87442e+00 680 2011 11 2.07322e+01 8.96914e-01 448 2011 12 1.73855e+01 7.12348e-01 372 2012 1 1.65772e+01 1.12062e+00 492 2012 2 1.65187e+01 1.10236e+00 166 2012 3 2.03586e+01 1.73762e+00 637 2012 4 2.26055e+01 7.20673e-01 825 2012 5 2.58734e+01 1.34620e+00 833 2012 6 2.67904e+01 1.01832e+00 537 2012 7 2.82859e+01 1.12069e+00 509 2012 8 2.86405e+01 1.30547e+00 458 2012 9 2.76579e+01 1.46140e+00 608 2012 10 2.56965e+01 1.44267e+00 731 2012 11 1.98602e+01 1.38506e+00 619 2012 12 1.87414e+01 1.49108e+00 352 2013 1 1.81039e+01 1.05942e+00 402 2013 2 1.76408e+01 1.00640e+00 314 2013 3 1.67610e+01 1.05600e+00 604 2013 4 1.96404e+01 1.45075e+00 415 2013 5 2.34587e+01 1.81647e+00 673 2013 6 2.74747e+01 1.53232e+00 616 2013 7 2.80156e+01 1.16447e+00 329 2013 8 2.88261e+01 1.49343e+00 537 2013 9 2.93578e+01 9.65482e-01 678 2013 10 2.62203e+01 1.43576e+00 588 2013 11 2.12111e+01 2.71703e+00 364 2013 12 1.83859e+01 1.06533e+00 380 2014 1 1.54366e+01 1.11308e+00 263 2014 2 1.52777e+01 1.29464e+00 256 2014 3 1.72048e+01 1.02941e+00 498 2014 4 2.06517e+01 1.75503e+00 399 2014 5 2.44043e+01 1.37382e+00 611 2014 6 2.77493e+01 1.20594e+00 680 2014 7 2.84455e+01 9.00691e-01 649 2014 8 2.89769e+01 1.28360e+00 754 2014 9 2.89825e+01 1.61073e+00 524 2014 10 2.56055e+01 1.21279e+00 932 2014 11 2.00528e+01 2.29755e+00 619 2014 12 1.72823e+01 9.29277e-01 445 2015 1 1.55199e+01 1.22125e+00 474 2015 2 1.55101e+01 9.87071e-01 478 2015 3 1.83407e+01 1.75202e+00 336 2015 4 2.15421e+01 1.53201e+00 271 2015 5 2.56692e+01 1.97490e+00 810 2015 6 2.89284e+01 1.29568e+00 611 2015 7 2.84825e+01 1.40332e+00 539 2015 8 2.98488e+01 1.45852e+00 610 2015 9 2.81958e+01 1.26150e+00 297 2015 10 2.50715e+01 1.08734e+00 579 2015 11 2.26859e+01 2.28876e+00 558 2015 12 1.97446e+01 9.16754e-01 340 2016 1 1.68803e+01 2.35623e+00 391 2016 2 1.63189e+01 1.28953e+00 444 2016 3 1.83113e+01 1.39056e+00 362 2016 4 2.15328e+01 1.22371e+00 552 2016 5 2.42266e+01 1.37730e+00 646 2016 6 2.80282e+01 1.24240e+00 668 2016 7 3.03163e+01 1.20141e+00 723 2016 8 2.96355e+01 1.13635e+00 604 2016 9 2.90887e+01 7.91214e-01 574 2016 10 2.61845e+01 1.67089e+00 746 2016 11 2.23780e+01 1.53551e+00 620 2016 12 1.91721e+01 1.03144e+00 444 2017 1 1.79133e+01 1.40767e+00 403 2017 2 1.83795e+01 1.03401e+00 560 2017 3 1.91546e+01 1.20406e+00 630 2017 4 2.22835e+01 1.22864e+00 597 2017 5 2.45989e+01 1.03450e+00 557 2017 6 2.80531e+01 1.33405e+00 311 2017 7 2.99597e+01 1.09263e+00 660 2017 8 2.99073e+01 9.87203e-01 488 2017 9 2.83380e+01 1.11091e+00 640 2017 10 2.55433e+01 1.53103e+00 692 2017 11 2.14408e+01 1.25125e+00 643 2017 12 1.81826e+01 1.63664e+00 411 2018 1 1.49252e+01 1.13087e+00 335 2018 2 1.65524e+01 2.55758e+00 120 2018 3 1.92472e+01 1.00162e+00 698 2018 4 2.07720e+01 1.09030e+00 654 2018 5 2.46419e+01 1.91381e+00 705 2018 6 2.76169e+01 1.32911e+00 631 2018 7 2.90546e+01 1.15811e+00 515 2018 8 2.92549e+01 9.50538e-01 505 2018 9 2.99112e+01 8.56978e-01 721 2018 10 2.70643e+01 1.68901e+00 720 2018 11 2.16629e+01 2.03150e+00 302 2018 12 1.78733e+01 1.45233e+00 309 2019 1 1.73426e+01 1.56399e+00 464 2019 2 1.70515e+01 2.16654e+00 191 2019 3 1.82745e+01 1.08638e+00 465 2019 4 2.11497e+01 1.65172e+00 505 2019 5 2.66229e+01 1.92151e+00 880 2019 6 2.82938e+01 1.51998e+00 524 2019 7 2.91996e+01 1.47764e+00 520 2019 8 2.99110e+01 8.77612e-01 509 2019 9 2.93356e+01 9.59588e-01 860 2019 10 2.73059e+01 1.63962e+00 503 2019 11 2.05462e+01 1.87552e+00 565 2019 12 1.80621e+01 1.39579e+00 398 2020 1 1.79330e+01 1.14566e+00 570 2020 2 1.76366e+01 7.94123e-01 437 2020 3 2.12189e+01 2.49424e+00 651 2020 4 2.25860e+01 8.33462e-01 432 2020 5 2.37974e+01 1.38494e+00 681 2020 6 2.85522e+01 1.44121e+00 472 2020 7 2.85558e+01 1.25856e+00 508 2020 8 3.02925e+01 1.18703e+00 432 2020 9 2.85433e+01 1.56759e+00 411 2020 10 2.55654e+01 8.76471e-01 558 2020 11 2.25703e+01 1.48480e+00 755 2020 12 1.77517e+01 1.53859e+00 746 2021 1 1.60418e+01 1.26909e+00 387 2021 2 1.59153e+01 8.99648e-01 389 2021 3 1.80582e+01 1.07875e+00 486 2021 4 2.09419e+01 1.15699e+00 624 2021 5 2.44576e+01 1.35529e+00 740 2021 6 2.72314e+01 1.25505e+00 401 2021 7 2.91282e+01 1.16737e+00 494 2021 8 2.98632e+01 1.05705e+00 508 2021 9 2.81279e+01 7.90548e-01 503 2021 10 2.68239e+01 9.75187e-01 440 2021 11 2.14482e+01 1.10398e+00 724 2021 12 1.93494e+01 8.95117e-01 583 2022 1 1.72417e+01 2.08326e+00 610 2022 2 1.67957e+01 1.32899e+00 547 2022 3 1.91927e+01 8.58173e-01 772 2022 4 2.19429e+01 1.00285e+00 457 2022 5 2.52278e+01 1.26803e+00 744 2022 6 2.89856e+01 1.41891e+00 717 2022 7 2.99152e+01 1.24984e+00 536 2022 8 3.02484e+01 1.07108e+00 537 2022 9 2.88213e+01 1.56638e+00 548 2022 10 2.49362e+01 1.45908e+00 675 2022 11 2.18633e+01 1.89988e+00 470 2022 12 1.83680e+01 2.24545e+00 668 2023 1 1.79964e+01 1.19914e+00 687 2023 2 1.81263e+01 1.20278e+00 608 2023 3 2.05073e+01 1.16341e+00 557 2023 4 2.19893e+01 1.05775e+00 597 2023 5 2.49146e+01 1.68723e+00 638 2023 6 2.68402e+01 1.36408e+00 602 2023 7 2.89968e+01 1.18102e+00 555 2023 8 3.05657e+01 7.95156e-01 760 2023 9 3.01595e+01 9.23208e-01 585 2023 10 2.48312e+01 1.18507e+00 730 2023 11 2.17768e+01 1.38240e+00 482 2023 12 1.61743e+01 1.42013e+00 352 2024 1 1.54780e+01 8.68938e-01 340 2024 2 1.69373e+01 8.15945e-01 468 2024 3 1.90251e+01 1.27666e+00 384 2024 4 1.99978e+01 1.05806e+00 44