YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 1.71737e+01 2.04001e-01 30 2000 3 1.93670e+01 1.11127e+00 128 2000 4 2.13276e+01 9.80351e-01 117 2000 5 2.51780e+01 1.86939e+00 224 2000 6 2.68304e+01 5.84105e-01 69 2000 7 2.97175e+01 1.10098e+00 96 2000 8 2.93732e+01 1.13110e+00 80 2000 9 2.80808e+01 2.41897e-01 64 2000 10 2.46548e+01 7.35583e-01 238 2000 11 2.27733e+01 1.56868e+00 176 2000 12 1.82304e+01 1.02782e+00 184 2001 1 1.59796e+01 7.94422e-01 91 2001 2 1.71176e+01 6.06666e-01 73 2001 3 1.73950e+01 1.11420e+00 130 2001 4 1.99911e+01 1.67996e+00 164 2001 5 2.30609e+01 1.69812e+00 176 2001 6 2.59243e+01 1.10175e+00 60 2001 7 3.02228e+01 3.26793e-01 32 2001 8 2.88593e+01 1.25394e+00 176 2001 9 2.74379e+01 1.44365e+00 106 2001 10 2.45395e+01 1.46802e+00 144 2001 11 2.13649e+01 8.65671e-01 226 2001 12 2.04718e+01 1.26191e+00 183 2002 1 1.66882e+01 7.69563e-01 76 2002 2 1.66572e+01 6.02579e-01 107 2002 3 1.81295e+01 1.13343e+00 48 2002 4 2.31938e+01 2.10181e+00 128 2002 5 2.58543e+01 9.25406e-01 214 2002 6 2.73407e+01 9.20001e-01 127 2002 7 2.90864e+01 1.52146e+00 439 2002 8 2.92730e+01 7.42735e-01 537 2002 9 2.87788e+01 1.09495e+00 479 2002 10 2.78582e+01 1.26865e+00 699 2002 11 2.34638e+01 2.22605e+00 665 2002 12 1.81339e+01 1.48581e+00 471 2003 1 1.55590e+01 9.93760e-01 596 2003 2 1.52011e+01 5.96918e-01 317 2003 3 1.89621e+01 1.89553e+00 275 2003 4 2.04946e+01 1.55199e+00 618 2003 5 2.60665e+01 1.24278e+00 698 2003 6 2.77506e+01 1.47620e+00 518 2003 7 2.95227e+01 1.03783e+00 390 2003 8 2.86651e+01 9.90094e-01 487 2003 9 2.86816e+01 1.01801e+00 502 2003 10 2.53667e+01 9.86232e-01 677 2003 11 2.30002e+01 1.29571e+00 775 2003 12 1.84259e+01 1.70718e+00 506 2004 1 1.59689e+01 6.69607e-01 522 2004 2 1.45476e+01 1.16101e+00 169 2004 3 1.71137e+01 1.35445e+00 681 2004 4 1.96971e+01 1.62885e+00 649 2004 5 2.48435e+01 2.11284e+00 965 2004 6 2.87612e+01 1.08201e+00 583 2004 7 2.96412e+01 1.13507e+00 547 2004 8 2.94059e+01 1.32717e+00 660 2004 9 2.76147e+01 1.45938e+00 528 2004 10 2.55965e+01 1.25527e+00 658 2004 11 2.33299e+01 1.55211e+00 546 2004 12 1.86604e+01 1.85113e+00 640 2005 1 1.60260e+01 8.22393e-01 367 2005 2 1.58967e+01 6.83239e-01 344 2005 3 1.64460e+01 9.75438e-01 454 2005 4 1.94867e+01 1.17891e+00 686 2005 5 2.43596e+01 2.12715e+00 734 2005 6 2.77125e+01 1.38936e+00 614 2005 7 2.93777e+01 1.76219e+00 578 2005 8 2.97988e+01 1.63837e+00 593 2005 9 2.84662e+01 1.10226e+00 790 2005 10 2.65128e+01 1.43958e+00 762 2005 11 2.23811e+01 1.09004e+00 703 2005 12 1.77052e+01 1.75587e+00 540 2006 1 1.61983e+01 9.52670e-01 434 2006 2 1.59806e+01 7.51785e-01 490 2006 3 1.79856e+01 8.81398e-01 614 2006 4 2.16180e+01 2.10905e+00 737 2006 5 2.42992e+01 1.26241e+00 860 2006 6 2.76188e+01 1.35346e+00 717 2006 7 2.94632e+01 1.27762e+00 546 2006 8 3.04126e+01 1.00075e+00 707 2006 9 2.92849e+01 1.10835e+00 670 2006 10 2.65160e+01 1.57505e+00 816 2006 11 2.14950e+01 1.64481e+00 692 2006 12 1.79653e+01 1.21759e+00 387 2007 1 1.69809e+01 8.33003e-01 351 2007 2 1.58018e+01 5.31863e-01 325 2007 3 1.73930e+01 1.11651e+00 652 2007 4 2.02506e+01 1.57491e+00 537 2007 5 2.33321e+01 1.16818e+00 955 2007 6 2.64910e+01 1.72567e+00 623 2007 7 2.93733e+01 1.61456e+00 511 2007 8 3.01890e+01 1.45366e+00 694 2007 9 2.91652e+01 1.29938e+00 637 2007 10 2.72295e+01 7.60183e-01 512 2007 11 2.21882e+01 1.72214e+00 860 2007 12 1.93555e+01 1.13865e+00 466 2008 1 1.68559e+01 1.37276e+00 408 2008 2 1.67936e+01 1.18569e+00 518 2008 3 1.78078e+01 1.26726e+00 552 2008 4 2.09334e+01 1.19637e+00 781 2008 5 2.43062e+01 1.94081e+00 732 2008 6 2.81580e+01 1.16114e+00 649 2008 7 2.91514e+01 1.38958e+00 504 2008 8 2.87056e+01 8.97725e-01 413 2008 9 2.78972e+01 1.02141e+00 649 2008 10 2.52834e+01 1.27548e+00 855 2008 11 2.07378e+01 1.49737e+00 675 2008 12 1.78361e+01 6.11316e-01 530 2009 1 1.68776e+01 1.41563e+00 618 2009 2 1.58072e+01 7.29008e-01 592 2009 3 1.78187e+01 1.37514e+00 620 2009 4 2.06056e+01 1.60921e+00 625 2009 5 2.51601e+01 1.81423e+00 616 2009 6 2.76813e+01 1.39048e+00 707 2009 7 2.86108e+01 9.56162e-01 597 2009 8 2.95368e+01 1.05482e+00 591 2009 9 2.86547e+01 7.10079e-01 556 2009 10 2.69022e+01 1.65479e+00 722 2009 11 2.21530e+01 1.24378e+00 410 2009 12 1.83610e+01 1.20672e+00 150 2010 1 1.53952e+01 1.09354e+00 481 2010 2 1.44726e+01 6.66340e-01 393 2010 3 1.52679e+01 9.68355e-01 453 2010 4 2.00349e+01 1.48210e+00 534 2010 5 2.53871e+01 2.27127e+00 812 2010 6 3.01116e+01 1.52892e+00 701 2010 7 2.94769e+01 1.14396e+00 638 2010 8 2.94756e+01 1.46982e+00 383 2010 9 2.92470e+01 9.51930e-01 627 2010 10 2.61417e+01 1.14803e+00 1030 2010 11 2.21967e+01 1.09095e+00 806 2010 12 1.80120e+01 2.23617e+00 699 2011 1 1.40384e+01 6.30349e-01 455 2011 2 1.36999e+01 7.99852e-01 210 2011 3 1.75440e+01 1.68148e+00 517 2011 4 2.21772e+01 1.52599e+00 882 2011 5 2.54067e+01 1.22198e+00 1036 2011 6 2.87449e+01 1.15036e+00 697 2011 7 2.96383e+01 1.06811e+00 538 2011 8 3.03602e+01 9.45425e-01 762 2011 9 2.88982e+01 8.99001e-01 632 2011 10 2.59233e+01 1.71321e+00 779 2011 11 2.11506e+01 1.32374e+00 687 2011 12 1.84295e+01 1.21866e+00 456 2012 1 1.72122e+01 8.17764e-01 613 2012 2 1.70151e+01 1.54653e+00 217 2012 3 2.00785e+01 1.61037e+00 648 2012 4 2.30090e+01 1.06163e+00 895 2012 5 2.58755e+01 1.28231e+00 818 2012 6 2.72408e+01 7.15296e-01 596 2012 7 2.89693e+01 1.49659e+00 555 2012 8 2.90070e+01 1.08668e+00 468 2012 9 2.85891e+01 1.06284e+00 570 2012 10 2.60070e+01 1.46088e+00 703 2012 11 2.10045e+01 1.50745e+00 720 2012 12 1.82097e+01 1.29307e+00 429 2013 1 1.65744e+01 9.87465e-01 260 2013 2 1.70408e+01 9.12366e-01 438 2013 3 1.72777e+01 1.15294e+00 602 2013 4 1.97643e+01 1.75940e+00 481 2013 5 2.39907e+01 1.92152e+00 671 2013 6 2.75512e+01 1.77513e+00 665 2013 7 2.85955e+01 1.28960e+00 315 2013 8 2.98746e+01 1.28711e+00 616 2013 9 2.97241e+01 1.31571e+00 712 2013 10 2.64591e+01 1.11058e+00 715 2013 11 2.25708e+01 1.96498e+00 464 2013 12 1.87595e+01 1.19635e+00 511 2014 1 1.56848e+01 1.25001e+00 353 2014 2 1.53553e+01 1.91573e+00 293 2014 3 1.68946e+01 8.23727e-01 462 2014 4 1.95937e+01 1.69351e+00 478 2014 5 2.44105e+01 1.76106e+00 637 2014 6 2.81479e+01 2.09812e+00 668 2014 7 2.93068e+01 8.97981e-01 600 2014 8 2.96063e+01 1.01189e+00 760 2014 9 2.91528e+01 1.23918e+00 314 2014 10 2.66474e+01 1.19297e+00 877 2014 11 2.15819e+01 1.71603e+00 678 2014 12 1.84456e+01 6.88535e-01 530 2015 1 1.58068e+01 1.11414e+00 419 2015 2 1.51834e+01 1.11092e+00 568 2015 3 1.81378e+01 1.63004e+00 346 2015 4 2.20544e+01 2.08558e+00 343 2015 5 2.58512e+01 1.54178e+00 1023 2015 6 2.89562e+01 1.64114e+00 610 2015 7 2.92486e+01 1.55830e+00 514 2015 8 3.00559e+01 1.10728e+00 433 2015 9 2.84635e+01 1.59714e+00 289 2015 10 2.54661e+01 1.00469e+00 655 2015 11 2.36579e+01 1.55026e+00 632 2015 12 2.08270e+01 1.48229e+00 366 2016 1 1.76518e+01 2.03898e+00 459 2016 2 1.64407e+01 7.78533e-01 506 2016 3 1.81416e+01 1.41419e+00 355 2016 4 2.12771e+01 1.20256e+00 589 2016 5 2.49534e+01 1.32319e+00 739 2016 6 2.85025e+01 1.24588e+00 720 2016 7 3.05713e+01 9.59375e-01 749 2016 8 3.01613e+01 1.04220e+00 549 2016 9 2.91856e+01 9.47400e-01 639 2016 10 2.62866e+01 1.50019e+00 732 2016 11 2.27067e+01 1.57514e+00 755 2016 12 1.95162e+01 1.40010e+00 547 2017 1 1.84207e+01 9.26226e-01 439 2017 2 1.87314e+01 1.02685e+00 544 2017 3 1.89319e+01 1.68572e+00 753 2017 4 2.21054e+01 9.35810e-01 654 2017 5 2.50414e+01 1.21270e+00 539 2017 6 2.79140e+01 1.48960e+00 416 2017 7 2.98486e+01 1.38379e+00 572 2017 8 3.02661e+01 1.03641e+00 564 2017 9 2.86481e+01 1.01127e+00 650 2017 10 2.65010e+01 1.22299e+00 787 2017 11 2.27205e+01 1.23353e+00 710 2017 12 1.92326e+01 1.79187e+00 447 2018 1 1.53588e+01 1.15590e+00 443 2018 2 1.72177e+01 1.94962e+00 196 2018 3 1.85450e+01 7.48308e-01 650 2018 4 2.05917e+01 1.25610e+00 496 2018 5 2.42882e+01 2.13532e+00 540 2018 6 2.84565e+01 1.71707e+00 563 2018 7 2.98404e+01 1.25781e+00 599 2018 8 2.99321e+01 1.16827e+00 497 2018 9 2.99663e+01 1.21823e+00 790 2018 10 2.82180e+01 1.60282e+00 730 2018 11 2.29023e+01 1.67852e+00 318 2018 12 1.81383e+01 1.40702e+00 312 2019 1 1.68737e+01 8.13259e-01 473 2019 2 1.65037e+01 2.08822e+00 217 2019 3 1.84289e+01 9.19113e-01 532 2019 4 2.13178e+01 1.17255e+00 462 2019 5 2.64591e+01 1.91962e+00 884 2019 6 2.89172e+01 1.35051e+00 463 2019 7 2.97108e+01 1.21438e+00 433 2019 8 3.00768e+01 7.92096e-01 576 2019 9 2.94854e+01 8.17588e-01 974 2019 10 2.74136e+01 1.59652e+00 621 2019 11 2.16170e+01 2.04214e+00 488 2019 12 1.88349e+01 1.25951e+00 462 2020 1 1.76132e+01 1.12316e+00 497 2020 2 1.66328e+01 6.99863e-01 458 2020 3 2.02187e+01 2.74431e+00 736 2020 4 2.29649e+01 8.41385e-01 492 2020 5 2.44451e+01 1.11798e+00 812 2020 6 2.88537e+01 1.19262e+00 526 2020 7 2.91971e+01 1.31979e+00 511 2020 8 3.06557e+01 9.64267e-01 414 2020 9 2.87090e+01 1.65442e+00 405 2020 10 2.58852e+01 6.75286e-01 599 2020 11 2.36900e+01 1.11480e+00 688 2020 12 1.88840e+01 1.72166e+00 705 2021 1 1.68668e+01 9.96490e-01 455 2021 2 1.63783e+01 1.01802e+00 412 2021 3 1.80546e+01 1.12646e+00 553 2021 4 2.09964e+01 1.46312e+00 659 2021 5 2.49037e+01 1.17794e+00 640 2021 6 2.73224e+01 8.61363e-01 409 2021 7 2.93899e+01 1.13865e+00 445 2021 8 2.98530e+01 1.03686e+00 449 2021 9 2.85888e+01 8.73548e-01 495 2021 10 2.72907e+01 1.02336e+00 608 2021 11 2.24058e+01 1.40628e+00 728 2021 12 1.96219e+01 4.36815e-01 596 2022 1 1.80165e+01 1.53257e+00 690 2022 2 1.62552e+01 1.05700e+00 565 2022 3 1.86511e+01 8.42578e-01 688 2022 4 2.19111e+01 9.92588e-01 544 2022 5 2.59735e+01 1.54454e+00 764 2022 6 2.89017e+01 1.30976e+00 581 2022 7 3.05510e+01 8.70709e-01 553 2022 8 3.10565e+01 1.10990e+00 447 2022 9 2.92869e+01 1.27188e+00 522 2022 10 2.56898e+01 1.25174e+00 804 2022 11 2.27933e+01 1.80971e+00 478 2022 12 1.94453e+01 1.37405e+00 794 2023 1 1.78140e+01 6.93172e-01 640 2023 2 1.84937e+01 8.81558e-01 547 2023 3 2.03483e+01 7.92980e-01 793 2023 4 2.24129e+01 7.04246e-01 512 2023 5 2.50274e+01 1.55117e+00 607 2023 6 2.70303e+01 1.43961e+00 603 2023 7 2.96855e+01 9.71970e-01 638 2023 8 3.06591e+01 1.19882e+00 705 2023 9 3.03616e+01 1.02446e+00 609 2023 10 2.58865e+01 1.23168e+00 746 2023 11 2.31740e+01 1.24655e+00 575 2023 12 1.76315e+01 1.54790e+00 293 2024 1 1.54141e+01 6.47955e-01 324 2024 2 1.54669e+01 5.38305e-01 454 2024 3 1.87843e+01 1.08785e+00 368 2024 4 2.05090e+01 1.75967e-01 48