YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 1.75316e+01 4.88048e-02 32 2000 3 1.95298e+01 1.04332e+00 160 2000 4 2.15122e+01 6.94322e-01 128 2000 5 2.50448e+01 1.82301e+00 188 2000 6 2.68658e+01 6.22725e-01 128 2000 7 2.92407e+01 1.18988e+00 170 2000 8 2.97346e+01 4.08561e-01 49 2000 9 2.74726e+01 4.72022e-01 112 2000 10 2.44588e+01 1.29493e+00 256 2000 11 2.24573e+01 1.81117e+00 169 2000 12 1.78649e+01 1.24765e+00 160 2001 1 1.49130e+01 8.22464e-01 120 2001 2 1.73481e+01 3.50432e-01 80 2001 3 1.73242e+01 1.19485e+00 107 2001 4 2.01763e+01 1.69584e+00 181 2001 5 2.38535e+01 1.43768e+00 192 2001 6 2.59319e+01 5.05723e-01 48 2001 7 2.86836e+01 1.42560e+00 22 2001 8 2.88866e+01 1.05539e+00 164 2001 9 2.77305e+01 6.24413e-01 135 2001 10 2.48021e+01 1.66217e+00 144 2001 11 2.13582e+01 6.35451e-01 215 2001 12 1.99602e+01 2.13652e+00 151 2002 1 1.66564e+01 9.12387e-01 80 2002 2 1.68026e+01 6.27618e-01 108 2002 3 1.92680e+01 8.21513e-01 32 2002 4 2.26871e+01 2.36217e+00 144 2002 5 2.58562e+01 9.30203e-01 175 2002 6 2.73091e+01 6.87721e-01 144 2002 7 2.89728e+01 1.26310e+00 468 2002 8 2.90184e+01 1.02165e+00 544 2002 9 2.86064e+01 1.00254e+00 451 2002 10 2.77131e+01 1.40427e+00 651 2002 11 2.30343e+01 2.35020e+00 598 2002 12 1.77514e+01 1.17584e+00 444 2003 1 1.49877e+01 1.42755e+00 658 2003 2 1.53684e+01 6.40809e-01 281 2003 3 1.90673e+01 1.44788e+00 306 2003 4 2.07935e+01 1.69235e+00 599 2003 5 2.56894e+01 1.36396e+00 692 2003 6 2.80189e+01 1.63894e+00 520 2003 7 2.92432e+01 1.38104e+00 361 2003 8 2.87504e+01 7.97213e-01 450 2003 9 2.86368e+01 8.30412e-01 492 2003 10 2.49605e+01 1.10979e+00 650 2003 11 2.29586e+01 1.27462e+00 825 2003 12 1.82186e+01 1.92927e+00 501 2004 1 1.54593e+01 8.73395e-01 395 2004 2 1.47860e+01 9.15541e-01 201 2004 3 1.71646e+01 1.44621e+00 570 2004 4 1.96368e+01 1.27359e+00 714 2004 5 2.49334e+01 2.04727e+00 902 2004 6 2.85659e+01 1.17045e+00 645 2004 7 2.96703e+01 1.22434e+00 581 2004 8 2.96214e+01 1.15605e+00 529 2004 9 2.78228e+01 1.66452e+00 495 2004 10 2.56269e+01 1.23476e+00 696 2004 11 2.33006e+01 1.72581e+00 607 2004 12 1.85302e+01 1.53140e+00 522 2005 1 1.60386e+01 1.03946e+00 415 2005 2 1.57543e+01 9.26864e-01 335 2005 3 1.68505e+01 1.05146e+00 489 2005 4 1.96971e+01 1.23842e+00 670 2005 5 2.43409e+01 1.91395e+00 771 2005 6 2.78126e+01 1.38555e+00 640 2005 7 2.96213e+01 1.39118e+00 669 2005 8 2.98690e+01 1.61840e+00 638 2005 9 2.82789e+01 1.29749e+00 759 2005 10 2.63327e+01 1.30736e+00 731 2005 11 2.22688e+01 1.16649e+00 655 2005 12 1.77328e+01 1.77145e+00 578 2006 1 1.61566e+01 8.69284e-01 374 2006 2 1.59783e+01 7.59970e-01 430 2006 3 1.78301e+01 9.66777e-01 696 2006 4 2.16790e+01 2.12113e+00 793 2006 5 2.40740e+01 1.53984e+00 781 2006 6 2.74641e+01 1.39226e+00 737 2006 7 2.95075e+01 1.52493e+00 598 2006 8 3.03557e+01 1.08904e+00 748 2006 9 2.92493e+01 1.08886e+00 633 2006 10 2.65108e+01 1.60405e+00 750 2006 11 2.13819e+01 1.52945e+00 731 2006 12 1.81167e+01 9.99340e-01 403 2007 1 1.70284e+01 1.55365e+00 337 2007 2 1.53463e+01 1.26354e+00 413 2007 3 1.77241e+01 1.16781e+00 690 2007 4 2.04030e+01 1.34720e+00 583 2007 5 2.33877e+01 1.20634e+00 848 2007 6 2.65299e+01 1.89148e+00 662 2007 7 2.91017e+01 1.28578e+00 537 2007 8 3.02051e+01 1.27254e+00 653 2007 9 2.91994e+01 1.34637e+00 606 2007 10 2.70844e+01 9.93984e-01 504 2007 11 2.20394e+01 1.48773e+00 857 2007 12 1.97297e+01 1.27245e+00 482 2008 1 1.71048e+01 9.52393e-01 444 2008 2 1.70034e+01 1.13398e+00 526 2008 3 1.82805e+01 1.03415e+00 549 2008 4 2.10479e+01 9.44240e-01 699 2008 5 2.42254e+01 1.48098e+00 629 2008 6 2.83170e+01 9.48799e-01 591 2008 7 2.86815e+01 1.78003e+00 577 2008 8 2.83927e+01 1.58169e+00 517 2008 9 2.79598e+01 1.04216e+00 619 2008 10 2.52380e+01 1.16169e+00 784 2008 11 2.08809e+01 1.30374e+00 614 2008 12 1.75245e+01 9.72080e-01 558 2009 1 1.65413e+01 1.18659e+00 634 2009 2 1.56713e+01 7.38288e-01 612 2009 3 1.76643e+01 1.30269e+00 594 2009 4 2.07224e+01 1.58456e+00 602 2009 5 2.49856e+01 1.48157e+00 569 2009 6 2.71581e+01 1.18725e+00 702 2009 7 2.80960e+01 1.07457e+00 695 2009 8 2.95563e+01 1.17843e+00 425 2009 9 2.84362e+01 7.99925e-01 580 2009 10 2.69801e+01 1.43430e+00 622 2009 11 2.20401e+01 1.25705e+00 421 2009 12 1.73335e+01 1.72595e+00 222 2010 1 1.47381e+01 1.17048e+00 485 2010 2 1.39506e+01 1.15921e+00 446 2010 3 1.50820e+01 1.46524e+00 435 2010 4 2.01076e+01 1.44666e+00 536 2010 5 2.62929e+01 2.37131e+00 751 2010 6 3.01549e+01 1.25437e+00 704 2010 7 2.93903e+01 1.20749e+00 685 2010 8 2.94809e+01 1.56349e+00 299 2010 9 2.93644e+01 1.29973e+00 673 2010 10 2.59313e+01 1.29210e+00 1024 2010 11 2.24051e+01 1.16651e+00 727 2010 12 1.76774e+01 2.41454e+00 761 2011 1 1.40853e+01 7.39049e-01 471 2011 2 1.40290e+01 8.48229e-01 224 2011 3 1.75281e+01 1.74493e+00 535 2011 4 2.22050e+01 1.65512e+00 896 2011 5 2.50885e+01 1.30335e+00 959 2011 6 2.87985e+01 1.31186e+00 783 2011 7 2.97333e+01 1.39804e+00 559 2011 8 2.99242e+01 9.45813e-01 726 2011 9 2.86400e+01 1.06581e+00 624 2011 10 2.58235e+01 1.63703e+00 864 2011 11 2.11877e+01 1.21421e+00 739 2011 12 1.85253e+01 1.15309e+00 499 2012 1 1.74775e+01 6.85472e-01 627 2012 2 1.70360e+01 1.23729e+00 232 2012 3 2.02727e+01 1.56762e+00 661 2012 4 2.28237e+01 1.03104e+00 833 2012 5 2.56499e+01 1.48466e+00 822 2012 6 2.70951e+01 1.14385e+00 616 2012 7 2.89761e+01 1.28535e+00 456 2012 8 2.89051e+01 1.24772e+00 379 2012 9 2.81979e+01 1.32407e+00 562 2012 10 2.62612e+01 1.31451e+00 753 2012 11 2.11681e+01 1.31487e+00 718 2012 12 1.79643e+01 1.44889e+00 408 2013 1 1.65605e+01 1.43104e+00 399 2013 2 1.75349e+01 7.67729e-01 398 2013 3 1.72172e+01 9.45777e-01 596 2013 4 1.99616e+01 1.28486e+00 490 2013 5 2.34126e+01 1.82902e+00 645 2013 6 2.74215e+01 1.44871e+00 555 2013 7 2.84780e+01 1.48784e+00 363 2013 8 2.97964e+01 1.25973e+00 439 2013 9 2.95419e+01 1.13076e+00 697 2013 10 2.66145e+01 1.00105e+00 658 2013 11 2.23904e+01 2.05798e+00 406 2013 12 1.86075e+01 1.55720e+00 460 2014 1 1.57381e+01 1.29289e+00 391 2014 2 1.57365e+01 1.31165e+00 289 2014 3 1.69826e+01 6.96607e-01 496 2014 4 1.98833e+01 2.05081e+00 570 2014 5 2.50119e+01 1.64055e+00 627 2014 6 2.82045e+01 1.71173e+00 692 2014 7 2.88003e+01 1.29893e+00 648 2014 8 2.96936e+01 1.10819e+00 654 2014 9 2.89417e+01 1.27737e+00 315 2014 10 2.63053e+01 1.23874e+00 879 2014 11 2.14080e+01 1.84788e+00 631 2014 12 1.80090e+01 1.14936e+00 506 2015 1 1.56096e+01 1.53558e+00 414 2015 2 1.55196e+01 1.08447e+00 506 2015 3 1.79803e+01 1.46867e+00 367 2015 4 2.18234e+01 2.10563e+00 261 2015 5 2.58919e+01 1.61524e+00 937 2015 6 2.89398e+01 1.50900e+00 673 2015 7 2.90499e+01 1.65144e+00 530 2015 8 3.03058e+01 1.16176e+00 545 2015 9 2.85724e+01 1.13579e+00 284 2015 10 2.51839e+01 1.24922e+00 658 2015 11 2.31545e+01 1.80560e+00 576 2015 12 2.05114e+01 1.02106e+00 401 2016 1 1.79879e+01 1.90050e+00 424 2016 2 1.64151e+01 1.05455e+00 527 2016 3 1.84731e+01 1.13985e+00 414 2016 4 2.13447e+01 1.46037e+00 645 2016 5 2.49806e+01 1.50711e+00 680 2016 6 2.83056e+01 1.14140e+00 732 2016 7 3.05452e+01 1.05987e+00 718 2016 8 3.03070e+01 1.25510e+00 618 2016 9 2.93166e+01 9.86224e-01 588 2016 10 2.62829e+01 1.51344e+00 875 2016 11 2.25373e+01 1.72255e+00 747 2016 12 1.96639e+01 1.12572e+00 575 2017 1 1.82631e+01 1.08504e+00 436 2017 2 1.86366e+01 1.14387e+00 604 2017 3 1.91954e+01 1.13554e+00 655 2017 4 2.21144e+01 9.05609e-01 655 2017 5 2.48412e+01 1.20683e+00 539 2017 6 2.78652e+01 1.72652e+00 440 2017 7 2.99945e+01 1.77598e+00 603 2017 8 2.99634e+01 1.45014e+00 524 2017 9 2.86277e+01 1.10965e+00 602 2017 10 2.62983e+01 1.08964e+00 876 2017 11 2.27381e+01 1.23383e+00 751 2017 12 1.93390e+01 1.58272e+00 426 2018 1 1.53393e+01 7.85732e-01 471 2018 2 1.67090e+01 1.83393e+00 156 2018 3 1.88533e+01 8.88688e-01 706 2018 4 2.04545e+01 1.41928e+00 542 2018 5 2.44066e+01 1.95786e+00 568 2018 6 2.83758e+01 1.50569e+00 592 2018 7 3.00799e+01 1.16629e+00 515 2018 8 2.96439e+01 1.06913e+00 515 2018 9 3.00693e+01 1.13252e+00 720 2018 10 2.79592e+01 1.69769e+00 755 2018 11 2.22842e+01 1.93359e+00 321 2018 12 1.77452e+01 2.06237e+00 346 2019 1 1.66890e+01 8.99445e-01 524 2019 2 1.67176e+01 1.64018e+00 200 2019 3 1.81693e+01 1.38495e+00 570 2019 4 2.10735e+01 1.57309e+00 496 2019 5 2.63198e+01 2.30907e+00 952 2019 6 2.89102e+01 1.57854e+00 433 2019 7 2.95617e+01 1.41141e+00 450 2019 8 3.00446e+01 9.00949e-01 485 2019 9 2.95707e+01 8.78826e-01 963 2019 10 2.75538e+01 1.38528e+00 662 2019 11 2.17210e+01 1.91033e+00 543 2019 12 1.88958e+01 1.14219e+00 436 2020 1 1.73261e+01 5.48985e-01 468 2020 2 1.64895e+01 7.53621e-01 413 2020 3 2.03039e+01 2.85036e+00 659 2020 4 2.25339e+01 1.00981e+00 465 2020 5 2.42102e+01 1.33086e+00 738 2020 6 2.84441e+01 1.40088e+00 542 2020 7 2.89950e+01 1.12326e+00 463 2020 8 3.06328e+01 1.05862e+00 385 2020 9 2.89102e+01 1.45719e+00 428 2020 10 2.55963e+01 7.05857e-01 666 2020 11 2.36858e+01 1.12445e+00 814 2020 12 1.89755e+01 1.47453e+00 641 2021 1 1.65328e+01 1.04415e+00 406 2021 2 1.65658e+01 1.01730e+00 405 2021 3 1.78541e+01 1.05952e+00 512 2021 4 2.10007e+01 1.48651e+00 720 2021 5 2.47164e+01 1.31196e+00 719 2021 6 2.74994e+01 9.82412e-01 408 2021 7 2.95526e+01 1.09187e+00 391 2021 8 3.01927e+01 7.90324e-01 446 2021 9 2.85642e+01 7.87872e-01 560 2021 10 2.70019e+01 1.12636e+00 649 2021 11 2.23124e+01 1.27508e+00 701 2021 12 1.91276e+01 5.57311e-01 542 2022 1 1.76752e+01 1.41995e+00 658 2022 2 1.63029e+01 8.65666e-01 489 2022 3 1.87321e+01 8.26619e-01 643 2022 4 2.16624e+01 9.41704e-01 506 2022 5 2.58695e+01 1.48415e+00 754 2022 6 2.91294e+01 1.34820e+00 641 2022 7 3.04556e+01 1.05936e+00 609 2022 8 3.06517e+01 1.25227e+00 495 2022 9 2.93221e+01 1.26285e+00 505 2022 10 2.60450e+01 1.29848e+00 782 2022 11 2.28213e+01 1.56744e+00 425 2022 12 1.96055e+01 1.31517e+00 764 2023 1 1.83893e+01 1.08532e+00 725 2023 2 1.85790e+01 1.03653e+00 557 2023 3 2.04498e+01 1.07709e+00 714 2023 4 2.20489e+01 8.72866e-01 566 2023 5 2.51081e+01 1.45930e+00 597 2023 6 2.69748e+01 1.37799e+00 586 2023 7 2.95018e+01 1.24559e+00 587 2023 8 3.07129e+01 1.29330e+00 580 2023 9 3.02982e+01 1.04654e+00 646 2023 10 2.57128e+01 1.25386e+00 783 2023 11 2.29913e+01 1.42042e+00 574 2023 12 1.74189e+01 1.24116e+00 320 2024 1 1.53118e+01 8.71173e-01 349 2024 2 1.53731e+01 1.02647e+00 524 2024 3 1.83658e+01 1.12462e+00 454 2024 4 2.03570e+01 7.27460e-02 32