YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 1.67500e+01 7.67856e-02 25 2000 3 1.92140e+01 1.16287e+00 165 2000 4 2.15844e+01 7.48723e-01 136 2000 5 2.51836e+01 2.00716e+00 240 2000 6 2.74033e+01 1.08400e+00 113 2000 7 2.92973e+01 1.18396e+00 121 2000 8 2.84326e+01 1.34627e+00 44 2000 9 2.77780e+01 8.63107e-01 76 2000 10 2.44248e+01 9.41472e-01 261 2000 11 2.25441e+01 1.70585e+00 144 2000 12 1.78004e+01 9.43817e-01 193 2001 1 1.54817e+01 4.83271e-01 64 2001 2 1.66106e+01 1.22395e+00 89 2001 3 1.75718e+01 1.04093e+00 130 2001 4 2.01724e+01 1.71208e+00 144 2001 5 2.35487e+01 1.36964e+00 208 2001 6 2.69458e+01 5.87719e-01 64 2001 7 2.91985e+01 7.15354e-01 64 2001 8 2.99972e+01 9.80605e-01 80 2001 9 2.74635e+01 1.16033e+00 94 2001 10 2.41213e+01 1.42163e+00 188 2001 11 2.12684e+01 7.37481e-01 246 2001 12 2.02720e+01 1.53184e+00 148 2002 1 1.65298e+01 7.53577e-01 82 2002 2 1.66189e+01 4.86902e-01 83 2002 3 1.88118e+01 7.96985e-01 52 2002 4 2.23469e+01 2.53852e+00 143 2002 5 2.58573e+01 7.47034e-01 240 2002 6 2.79447e+01 1.23709e+00 103 2002 7 2.86259e+01 1.95327e+00 444 2002 8 2.90952e+01 8.50594e-01 534 2002 9 2.87125e+01 1.10613e+00 600 2002 10 2.79243e+01 1.41051e+00 658 2002 11 2.34327e+01 2.20620e+00 608 2002 12 1.78417e+01 1.30377e+00 437 2003 1 1.51058e+01 1.31847e+00 635 2003 2 1.50190e+01 8.27956e-01 303 2003 3 1.86373e+01 1.41293e+00 299 2003 4 2.11170e+01 1.62277e+00 630 2003 5 2.59852e+01 1.55078e+00 737 2003 6 2.79901e+01 1.09188e+00 400 2003 7 2.96335e+01 8.40901e-01 351 2003 8 2.89779e+01 1.06479e+00 601 2003 9 2.83478e+01 9.87652e-01 464 2003 10 2.53462e+01 9.94973e-01 778 2003 11 2.32699e+01 1.16768e+00 780 2003 12 1.79935e+01 1.81866e+00 434 2004 1 1.56097e+01 7.74507e-01 480 2004 2 1.42711e+01 1.39299e+00 176 2004 3 1.77233e+01 1.47683e+00 595 2004 4 1.97617e+01 1.43470e+00 641 2004 5 2.48672e+01 1.96708e+00 904 2004 6 2.87998e+01 1.25292e+00 598 2004 7 2.98074e+01 1.30788e+00 542 2004 8 2.96997e+01 9.01837e-01 564 2004 9 2.77564e+01 1.63928e+00 568 2004 10 2.54437e+01 1.26512e+00 726 2004 11 2.33219e+01 1.52854e+00 626 2004 12 1.85181e+01 1.96695e+00 639 2005 1 1.56375e+01 1.31329e+00 384 2005 2 1.49939e+01 9.60951e-01 325 2005 3 1.64576e+01 1.19345e+00 408 2005 4 1.95982e+01 8.44542e-01 645 2005 5 2.43106e+01 1.97624e+00 758 2005 6 2.75826e+01 1.30813e+00 586 2005 7 2.95859e+01 1.50225e+00 639 2005 8 3.04620e+01 1.51577e+00 588 2005 9 2.84010e+01 1.17884e+00 819 2005 10 2.67266e+01 1.49701e+00 758 2005 11 2.25108e+01 1.11905e+00 640 2005 12 1.72038e+01 2.04701e+00 496 2006 1 1.58514e+01 6.18033e-01 427 2006 2 1.55422e+01 1.07595e+00 452 2006 3 1.80239e+01 1.22184e+00 653 2006 4 2.15855e+01 2.07819e+00 707 2006 5 2.43776e+01 1.18246e+00 898 2006 6 2.73640e+01 1.11372e+00 742 2006 7 2.94343e+01 1.32681e+00 585 2006 8 3.04571e+01 1.10804e+00 742 2006 9 2.96003e+01 1.11272e+00 642 2006 10 2.64726e+01 1.52221e+00 783 2006 11 2.08783e+01 1.59673e+00 551 2006 12 1.76077e+01 1.10068e+00 297 2007 1 1.63073e+01 1.32497e+00 325 2007 2 1.57098e+01 6.13064e-01 351 2007 3 1.77696e+01 1.11420e+00 692 2007 4 2.02985e+01 9.65915e-01 474 2007 5 2.34406e+01 1.14835e+00 986 2007 6 2.63658e+01 1.87545e+00 680 2007 7 2.92830e+01 1.41376e+00 571 2007 8 3.02868e+01 1.31482e+00 619 2007 9 2.94504e+01 1.33952e+00 616 2007 10 2.69230e+01 1.17853e+00 569 2007 11 2.22107e+01 1.42626e+00 843 2007 12 1.93291e+01 9.22064e-01 542 2008 1 1.62988e+01 1.38874e+00 412 2008 2 1.64503e+01 1.28890e+00 381 2008 3 1.74913e+01 1.28859e+00 577 2008 4 2.09691e+01 1.11978e+00 772 2008 5 2.44485e+01 1.74998e+00 707 2008 6 2.81363e+01 1.38430e+00 570 2008 7 2.94876e+01 1.55981e+00 419 2008 8 2.82882e+01 1.49190e+00 441 2008 9 2.80568e+01 9.28168e-01 701 2008 10 2.50879e+01 1.33655e+00 839 2008 11 2.03000e+01 1.64678e+00 633 2008 12 1.71088e+01 1.16067e+00 562 2009 1 1.64072e+01 1.21772e+00 668 2009 2 1.57145e+01 8.92937e-01 532 2009 3 1.71928e+01 1.46773e+00 533 2009 4 2.08158e+01 1.57235e+00 629 2009 5 2.48849e+01 1.54991e+00 656 2009 6 2.79338e+01 1.18387e+00 675 2009 7 2.86078e+01 1.21307e+00 645 2009 8 2.97365e+01 1.44222e+00 613 2009 9 2.89587e+01 6.91766e-01 490 2009 10 2.70612e+01 1.82282e+00 725 2009 11 2.18194e+01 1.52822e+00 479 2009 12 1.84925e+01 1.64881e+00 134 2010 1 1.41470e+01 1.81146e+00 424 2010 2 1.41034e+01 6.61310e-01 387 2010 3 1.51188e+01 1.39099e+00 450 2010 4 2.00164e+01 1.28545e+00 561 2010 5 2.56720e+01 1.86147e+00 816 2010 6 2.97934e+01 1.46574e+00 656 2010 7 2.94357e+01 1.45718e+00 572 2010 8 2.96944e+01 1.62835e+00 358 2010 9 2.92403e+01 1.06851e+00 727 2010 10 2.60929e+01 1.00410e+00 1136 2010 11 2.22023e+01 1.24221e+00 858 2010 12 1.76887e+01 2.04331e+00 669 2011 1 1.39137e+01 7.72413e-01 407 2011 2 1.39279e+01 7.75767e-01 195 2011 3 1.77657e+01 1.41366e+00 474 2011 4 2.25102e+01 1.42938e+00 932 2011 5 2.56333e+01 1.46717e+00 1043 2011 6 2.88911e+01 9.59597e-01 703 2011 7 2.98496e+01 1.39569e+00 511 2011 8 3.05676e+01 6.93625e-01 664 2011 9 2.88052e+01 1.05094e+00 690 2011 10 2.58732e+01 1.79858e+00 761 2011 11 2.11923e+01 8.72875e-01 639 2011 12 1.88463e+01 8.43124e-01 483 2012 1 1.69121e+01 7.78254e-01 599 2012 2 1.72595e+01 6.02453e-01 132 2012 3 2.01078e+01 1.62430e+00 705 2012 4 2.30143e+01 1.02471e+00 929 2012 5 2.59811e+01 1.39085e+00 841 2012 6 2.73339e+01 8.68127e-01 543 2012 7 2.90606e+01 1.52118e+00 550 2012 8 2.94138e+01 9.89722e-01 498 2012 9 2.86126e+01 9.75457e-01 669 2012 10 2.61615e+01 1.56740e+00 694 2012 11 2.09546e+01 1.22290e+00 660 2012 12 1.83733e+01 1.32189e+00 384 2013 1 1.62976e+01 6.95757e-01 262 2013 2 1.69398e+01 8.57673e-01 426 2013 3 1.68909e+01 1.11744e+00 654 2013 4 1.97455e+01 1.75938e+00 522 2013 5 2.38298e+01 2.00338e+00 705 2013 6 2.72555e+01 1.84722e+00 663 2013 7 2.87574e+01 1.34509e+00 385 2013 8 2.98632e+01 1.12600e+00 687 2013 9 2.99139e+01 1.27902e+00 666 2013 10 2.64757e+01 1.02891e+00 684 2013 11 2.21792e+01 2.12883e+00 467 2013 12 1.86997e+01 1.02235e+00 415 2014 1 1.55211e+01 5.80537e-01 276 2014 2 1.48324e+01 1.42376e+00 334 2014 3 1.70483e+01 8.90912e-01 510 2014 4 2.06641e+01 1.86085e+00 541 2014 5 2.44476e+01 1.82578e+00 665 2014 6 2.82741e+01 1.76389e+00 687 2014 7 2.95879e+01 1.16107e+00 646 2014 8 2.98178e+01 9.42707e-01 749 2014 9 2.93638e+01 1.25946e+00 361 2014 10 2.67041e+01 1.45274e+00 807 2014 11 2.11177e+01 1.80748e+00 620 2014 12 1.82802e+01 6.63480e-01 501 2015 1 1.60680e+01 1.12662e+00 432 2015 2 1.47389e+01 1.19362e+00 454 2015 3 1.81791e+01 1.84628e+00 411 2015 4 2.22393e+01 1.69657e+00 349 2015 5 2.60710e+01 1.31530e+00 1041 2015 6 2.94829e+01 1.55187e+00 603 2015 7 2.92088e+01 1.64296e+00 539 2015 8 3.00799e+01 8.75736e-01 333 2015 9 2.83313e+01 1.09867e+00 277 2015 10 2.56418e+01 8.96928e-01 681 2015 11 2.38246e+01 1.65395e+00 629 2015 12 2.02827e+01 8.70703e-01 404 2016 1 1.73563e+01 1.90372e+00 393 2016 2 1.59196e+01 8.06288e-01 488 2016 3 1.80410e+01 1.23260e+00 379 2016 4 2.13441e+01 1.29368e+00 558 2016 5 2.51467e+01 1.24626e+00 763 2016 6 2.87171e+01 1.09835e+00 642 2016 7 3.06415e+01 1.04791e+00 758 2016 8 3.03317e+01 1.06327e+00 659 2016 9 2.92734e+01 9.12930e-01 603 2016 10 2.60640e+01 1.46694e+00 795 2016 11 2.25823e+01 1.88147e+00 738 2016 12 1.94945e+01 8.10772e-01 515 2017 1 1.81913e+01 1.11094e+00 475 2017 2 1.82524e+01 1.35649e+00 493 2017 3 1.90531e+01 1.46489e+00 680 2017 4 2.22063e+01 8.94446e-01 707 2017 5 2.49394e+01 1.24046e+00 624 2017 6 2.77980e+01 1.44115e+00 388 2017 7 3.01015e+01 1.19290e+00 417 2017 8 3.02810e+01 9.78854e-01 543 2017 9 2.86087e+01 1.19480e+00 656 2017 10 2.64814e+01 1.18267e+00 827 2017 11 2.24458e+01 1.27889e+00 772 2017 12 1.88530e+01 1.69462e+00 446 2018 1 1.48516e+01 9.15255e-01 432 2018 2 1.72402e+01 2.60282e+00 267 2018 3 1.83700e+01 1.03029e+00 688 2018 4 2.07018e+01 1.16107e+00 500 2018 5 2.43093e+01 1.63936e+00 567 2018 6 2.83369e+01 1.60953e+00 505 2018 7 2.98414e+01 1.37410e+00 531 2018 8 2.98526e+01 1.24183e+00 482 2018 9 3.01333e+01 8.45153e-01 791 2018 10 2.81013e+01 1.76694e+00 759 2018 11 2.28522e+01 1.64626e+00 343 2018 12 1.81179e+01 2.25082e+00 327 2019 1 1.66060e+01 1.51771e+00 458 2019 2 1.76165e+01 1.85814e+00 221 2019 3 1.84769e+01 1.25261e+00 477 2019 4 2.15149e+01 1.66853e+00 518 2019 5 2.63609e+01 1.98049e+00 863 2019 6 2.88149e+01 1.37216e+00 526 2019 7 2.94220e+01 1.80735e+00 332 2019 8 3.01576e+01 9.93352e-01 485 2019 9 2.96141e+01 1.00944e+00 925 2019 10 2.75225e+01 1.51282e+00 646 2019 11 2.19454e+01 2.12277e+00 507 2019 12 1.89524e+01 9.91516e-01 524 2020 1 1.73366e+01 1.15246e+00 617 2020 2 1.59412e+01 9.20383e-01 430 2020 3 2.03513e+01 2.69965e+00 661 2020 4 2.33119e+01 6.71550e-01 470 2020 5 2.43456e+01 1.13335e+00 747 2020 6 2.87337e+01 1.26264e+00 584 2020 7 2.92530e+01 1.00867e+00 538 2020 8 3.08410e+01 9.46409e-01 306 2020 9 2.85378e+01 1.63877e+00 364 2020 10 2.59803e+01 7.03645e-01 741 2020 11 2.33150e+01 1.31077e+00 739 2020 12 1.83928e+01 1.83897e+00 750 2021 1 1.62811e+01 5.90735e-01 440 2021 2 1.63969e+01 8.65615e-01 421 2021 3 1.81765e+01 9.97863e-01 575 2021 4 2.14658e+01 1.48025e+00 686 2021 5 2.49382e+01 1.15175e+00 724 2021 6 2.74943e+01 9.72925e-01 402 2021 7 2.94227e+01 1.21730e+00 472 2021 8 2.99472e+01 7.69076e-01 443 2021 9 2.87867e+01 7.04647e-01 526 2021 10 2.72956e+01 9.25463e-01 525 2021 11 2.21789e+01 1.31225e+00 718 2021 12 1.96718e+01 4.20690e-01 638 2022 1 1.82865e+01 1.61957e+00 673 2022 2 1.63106e+01 1.35622e+00 654 2022 3 1.87088e+01 7.29178e-01 673 2022 4 2.20833e+01 9.62554e-01 545 2022 5 2.59301e+01 1.39100e+00 765 2022 6 2.86851e+01 1.35845e+00 647 2022 7 3.07622e+01 8.65482e-01 622 2022 8 3.07020e+01 1.30776e+00 457 2022 9 2.93600e+01 1.46160e+00 474 2022 10 2.56493e+01 1.59690e+00 779 2022 11 2.24852e+01 1.76215e+00 503 2022 12 1.92687e+01 1.56511e+00 811 2023 1 1.70650e+01 6.33647e-01 640 2023 2 1.82225e+01 8.55274e-01 608 2023 3 2.05798e+01 8.03732e-01 727 2023 4 2.26511e+01 8.88633e-01 474 2023 5 2.52668e+01 1.39563e+00 664 2023 6 2.70614e+01 1.22552e+00 625 2023 7 2.97407e+01 1.11032e+00 744 2023 8 3.07564e+01 1.19530e+00 792 2023 9 3.02158e+01 1.05053e+00 611 2023 10 2.57131e+01 1.18155e+00 656 2023 11 2.29107e+01 1.15637e+00 475 2023 12 1.75007e+01 1.59032e+00 281 2024 1 1.54072e+01 6.52301e-01 288 2024 2 1.55816e+01 8.04343e-01 475 2024 3 1.91069e+01 1.15325e+00 368 2024 4 2.07072e+01 3.44710e-01 32