YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 1.74191e+01 5.92720e-02 16 2000 3 1.93773e+01 1.09075e+00 130 2000 4 2.11909e+01 5.29443e-01 140 2000 5 2.48282e+01 1.29348e+00 156 2000 6 2.72422e+01 1.33536e+00 152 2000 7 2.91961e+01 1.36553e+00 149 2000 8 2.94377e+01 3.49780e-01 64 2000 9 2.78294e+01 1.17835e+00 151 2000 10 2.41252e+01 1.10811e+00 239 2000 11 2.18576e+01 2.69542e+00 120 2000 12 1.70410e+01 1.36259e+00 94 2001 1 1.53842e+01 5.36657e-01 36 2001 2 1.52007e+01 1.29287e+00 38 2001 3 1.77661e+01 8.97501e-01 80 2001 4 2.04900e+01 2.15967e+00 161 2001 5 2.37621e+01 1.11939e+00 196 2001 6 2.62807e+01 9.07580e-02 28 2001 7 2.87968e+01 6.60310e-01 65 2001 8 2.80548e+01 1.55320e+00 111 2001 9 2.83901e+01 1.22036e+00 160 2001 10 2.36996e+01 1.31077e+00 227 2001 11 2.09295e+01 8.60467e-01 230 2001 12 1.98433e+01 1.22629e+00 149 2002 1 1.64739e+01 6.90293e-01 18 2002 2 1.55465e+01 4.95845e-01 23 2002 3 1.62791e+01 2.28959e+00 48 2002 4 2.23080e+01 1.87909e+00 139 2002 5 2.56735e+01 9.66376e-01 217 2002 6 2.72505e+01 6.72516e-01 203 2002 7 2.91797e+01 1.15009e+00 521 2002 8 2.92896e+01 9.34069e-01 626 2002 9 2.81240e+01 1.35762e+00 497 2002 10 2.73757e+01 1.46636e+00 449 2002 11 2.11092e+01 2.60004e+00 283 2002 12 1.67898e+01 1.19896e+00 311 2003 1 1.58282e+01 1.15711e+00 383 2003 2 1.51800e+01 1.20141e+00 287 2003 3 1.88405e+01 1.51894e+00 332 2003 4 2.08584e+01 1.96946e+00 455 2003 5 2.52276e+01 1.22282e+00 511 2003 6 2.65755e+01 1.94163e+00 369 2003 7 2.82966e+01 1.05277e+00 408 2003 8 2.85148e+01 1.49140e+00 507 2003 9 2.84833e+01 1.00087e+00 541 2003 10 2.42871e+01 1.05473e+00 611 2003 11 2.26370e+01 1.03171e+00 651 2003 12 1.75825e+01 1.39439e+00 245 2004 1 1.52006e+01 7.62870e-01 204 2004 2 1.41966e+01 7.88711e-01 122 2004 3 1.74048e+01 1.39466e+00 446 2004 4 1.97292e+01 1.49235e+00 428 2004 5 2.46531e+01 2.10189e+00 731 2004 6 2.74973e+01 1.40000e+00 464 2004 7 2.89056e+01 1.31753e+00 620 2004 8 2.86492e+01 1.06074e+00 632 2004 9 2.71564e+01 1.65098e+00 557 2004 10 2.49099e+01 1.47093e+00 546 2004 11 2.24047e+01 2.19290e+00 405 2004 12 1.76283e+01 1.95700e+00 344 2005 1 1.55615e+01 1.24368e+00 260 2005 2 1.54715e+01 6.08797e-01 236 2005 3 1.66147e+01 1.19949e+00 371 2005 4 1.99440e+01 1.30088e+00 561 2005 5 2.38208e+01 2.12816e+00 687 2005 6 2.73479e+01 1.26704e+00 594 2005 7 2.90329e+01 1.55710e+00 596 2005 8 2.92133e+01 1.24103e+00 484 2005 9 2.85155e+01 8.90463e-01 815 2005 10 2.58318e+01 1.56940e+00 843 2005 11 2.10852e+01 1.52427e+00 425 2005 12 1.68205e+01 1.33880e+00 330 2006 1 1.59132e+01 8.93771e-01 393 2006 2 1.56880e+01 8.09072e-01 316 2006 3 1.77120e+01 9.48657e-01 474 2006 4 2.11516e+01 2.02401e+00 485 2006 5 2.35841e+01 1.76521e+00 647 2006 6 2.75360e+01 1.74069e+00 660 2006 7 2.94663e+01 1.14010e+00 496 2006 8 2.98831e+01 1.06846e+00 634 2006 9 2.85513e+01 1.05231e+00 597 2006 10 2.56639e+01 1.78734e+00 557 2006 11 1.99796e+01 2.03489e+00 542 2006 12 1.69368e+01 1.14665e+00 178 2007 1 1.61299e+01 8.24300e-01 184 2007 2 1.44440e+01 9.89998e-01 315 2007 3 1.70951e+01 1.56872e+00 485 2007 4 1.99310e+01 1.22518e+00 476 2007 5 2.33407e+01 1.27228e+00 755 2007 6 2.72989e+01 1.54643e+00 582 2007 7 2.75316e+01 1.47487e+00 399 2007 8 2.94418e+01 1.59685e+00 680 2007 9 2.90017e+01 1.02847e+00 593 2007 10 2.59570e+01 1.90604e+00 594 2007 11 2.07380e+01 1.51591e+00 601 2007 12 1.85692e+01 8.97942e-01 351 2008 1 1.64212e+01 1.09154e+00 289 2008 2 1.66878e+01 1.06677e+00 386 2008 3 1.75513e+01 1.09042e+00 448 2008 4 2.06684e+01 1.77074e+00 468 2008 5 2.40951e+01 1.90273e+00 529 2008 6 2.82057e+01 1.62154e+00 640 2008 7 2.80199e+01 1.36097e+00 535 2008 8 2.76445e+01 1.62488e+00 475 2008 9 2.75185e+01 1.17834e+00 613 2008 10 2.43326e+01 1.58709e+00 670 2008 11 1.99315e+01 1.38579e+00 534 2008 12 1.73484e+01 1.10389e+00 231 2009 1 1.62297e+01 1.12196e+00 295 2009 2 1.56243e+01 1.30419e+00 246 2009 3 1.78342e+01 1.77480e+00 419 2009 4 2.10861e+01 1.83810e+00 438 2009 5 2.47194e+01 1.41507e+00 532 2009 6 2.64572e+01 1.34388e+00 653 2009 7 2.74690e+01 1.34797e+00 571 2009 8 2.86686e+01 9.23369e-01 550 2009 9 2.82394e+01 9.92431e-01 526 2009 10 2.61443e+01 2.11589e+00 518 2009 11 2.08199e+01 1.76674e+00 448 2009 12 1.55399e+01 2.21480e+00 143 2010 1 1.42663e+01 9.98948e-01 273 2010 2 1.48021e+01 1.38418e+00 269 2010 3 1.57506e+01 1.31357e+00 352 2010 4 2.07126e+01 1.18427e+00 494 2010 5 2.51991e+01 1.98438e+00 617 2010 6 2.96024e+01 1.39859e+00 731 2010 7 2.93421e+01 1.63118e+00 722 2010 8 2.95701e+01 1.37239e+00 444 2010 9 2.92981e+01 1.10473e+00 714 2010 10 2.49835e+01 1.16772e+00 835 2010 11 2.05192e+01 8.86919e-01 517 2010 12 1.63890e+01 2.11384e+00 532 2011 1 1.37101e+01 1.01744e+00 317 2011 2 1.43908e+01 1.88217e+00 218 2011 3 1.83977e+01 1.46100e+00 428 2011 4 2.22868e+01 1.59098e+00 502 2011 5 2.45403e+01 1.88527e+00 679 2011 6 2.84545e+01 1.15478e+00 663 2011 7 2.94825e+01 1.31660e+00 589 2011 8 2.93618e+01 1.51221e+00 681 2011 9 2.75109e+01 7.33524e-01 660 2011 10 2.43664e+01 1.68256e+00 753 2011 11 2.05249e+01 8.57834e-01 424 2011 12 1.76011e+01 7.45337e-01 240 2012 1 1.62169e+01 1.17274e+00 369 2012 2 1.62559e+01 1.13728e+00 161 2012 3 2.02313e+01 2.25639e+00 529 2012 4 2.22688e+01 7.62146e-01 625 2012 5 2.58765e+01 1.41683e+00 731 2012 6 2.68039e+01 1.02216e+00 573 2012 7 2.82971e+01 1.02784e+00 512 2012 8 2.85141e+01 1.13560e+00 431 2012 9 2.73988e+01 1.31944e+00 609 2012 10 2.49073e+01 1.23340e+00 787 2012 11 1.98815e+01 1.47226e+00 632 2012 12 1.90476e+01 1.19554e+00 367 2013 1 1.67132e+01 1.07536e+00 312 2013 2 1.69325e+01 9.82073e-01 261 2013 3 1.66890e+01 1.50275e+00 496 2013 4 1.96607e+01 1.54100e+00 314 2013 5 2.35351e+01 2.19147e+00 572 2013 6 2.74589e+01 1.06991e+00 490 2013 7 2.82851e+01 9.17543e-01 398 2013 8 2.84466e+01 1.60229e+00 517 2013 9 2.92230e+01 1.37454e+00 695 2013 10 2.52891e+01 2.02164e+00 551 2013 11 2.14278e+01 1.85829e+00 349 2013 12 1.72193e+01 1.35619e+00 186 2014 1 1.42475e+01 7.77395e-01 320 2014 2 1.38398e+01 1.43678e+00 230 2014 3 1.64937e+01 1.26648e+00 359 2014 4 1.99354e+01 1.68818e+00 449 2014 5 2.41646e+01 1.63519e+00 531 2014 6 2.75442e+01 1.30874e+00 633 2014 7 2.72551e+01 1.02169e+00 596 2014 8 2.87293e+01 1.22326e+00 637 2014 9 2.94870e+01 1.20627e+00 500 2014 10 2.59587e+01 1.35428e+00 717 2014 11 1.99395e+01 2.60873e+00 397 2014 12 1.73463e+01 7.20084e-01 386 2015 1 1.58123e+01 8.68048e-01 246 2015 2 1.51494e+01 7.39068e-01 318 2015 3 1.87187e+01 1.89713e+00 274 2015 4 2.21168e+01 1.54261e+00 312 2015 5 2.55378e+01 1.97445e+00 672 2015 6 2.84444e+01 1.47585e+00 642 2015 7 2.78525e+01 1.48774e+00 573 2015 8 2.91966e+01 1.29668e+00 607 2015 9 2.82769e+01 1.29025e+00 484 2015 10 2.47713e+01 1.08669e+00 614 2015 11 2.22846e+01 1.70775e+00 497 2015 12 1.93923e+01 9.71667e-01 332 2016 1 1.61104e+01 1.17214e+00 287 2016 2 1.60994e+01 9.59225e-01 436 2016 3 1.80551e+01 1.38160e+00 342 2016 4 2.10383e+01 1.81436e+00 482 2016 5 2.42297e+01 1.77961e+00 462 2016 6 2.76374e+01 1.39017e+00 532 2016 7 2.95735e+01 1.24554e+00 727 2016 8 2.98374e+01 9.86751e-01 509 2016 9 2.93963e+01 9.52792e-01 635 2016 10 2.63623e+01 1.29979e+00 688 2016 11 2.20450e+01 1.70245e+00 546 2016 12 1.86736e+01 1.23254e+00 363 2017 1 1.76129e+01 1.26254e+00 299 2017 2 1.85967e+01 1.48363e+00 460 2017 3 1.89730e+01 1.46937e+00 518 2017 4 2.22587e+01 1.32888e+00 616 2017 5 2.39816e+01 1.29313e+00 497 2017 6 2.64551e+01 1.65874e+00 287 2017 7 2.87467e+01 1.28861e+00 657 2017 8 2.94514e+01 1.20798e+00 372 2017 9 2.78160e+01 1.28506e+00 549 2017 10 2.61856e+01 1.44780e+00 723 2017 11 2.16102e+01 1.57761e+00 595 2017 12 1.81179e+01 1.60708e+00 255 2018 1 1.53150e+01 9.26502e-01 190 2018 2 1.86813e+01 2.34346e+00 338 2018 3 1.95043e+01 1.45092e+00 549 2018 4 2.06147e+01 7.86308e-01 551 2018 5 2.50329e+01 1.96870e+00 630 2018 6 2.81032e+01 1.18022e+00 599 2018 7 2.86798e+01 1.57398e+00 642 2018 8 2.90760e+01 1.35911e+00 494 2018 9 2.94043e+01 1.17341e+00 715 2018 10 2.73477e+01 1.88480e+00 744 2018 11 2.12100e+01 2.09512e+00 209 2018 12 1.69461e+01 1.27535e+00 275 2019 1 1.66574e+01 1.31204e+00 309 2019 2 1.75605e+01 1.78609e+00 116 2019 3 1.82398e+01 9.05542e-01 413 2019 4 2.07867e+01 1.14636e+00 386 2019 5 2.63987e+01 1.92792e+00 732 2019 6 2.82071e+01 1.22102e+00 646 2019 7 2.93998e+01 1.16667e+00 550 2019 8 2.99908e+01 1.00496e+00 481 2019 9 2.96719e+01 9.66161e-01 788 2019 10 2.77914e+01 2.14141e+00 533 2019 11 2.06762e+01 2.26896e+00 504 2019 12 1.75152e+01 1.49710e+00 384 2020 1 1.65970e+01 1.22484e+00 458 2020 2 1.67038e+01 8.81168e-01 375 2020 3 2.15755e+01 2.85901e+00 528 2020 4 2.15730e+01 8.84871e-01 390 2020 5 2.36631e+01 2.15351e+00 685 2020 6 2.76800e+01 8.91924e-01 536 2020 7 2.85608e+01 1.74172e+00 516 2020 8 2.99879e+01 8.22593e-01 432 2020 9 2.84464e+01 2.04739e+00 442 2020 10 2.51791e+01 9.51209e-01 745 2020 11 2.25873e+01 1.32759e+00 776 2020 12 1.78473e+01 1.83026e+00 680 2021 1 1.53122e+01 7.78040e-01 398 2021 2 1.53828e+01 8.94463e-01 384 2021 3 1.81564e+01 1.39869e+00 380 2021 4 2.05705e+01 1.23042e+00 583 2021 5 2.42789e+01 1.26189e+00 650 2021 6 2.72818e+01 1.09332e+00 412 2021 7 2.92350e+01 1.28433e+00 488 2021 8 3.01138e+01 1.17281e+00 559 2021 9 2.80811e+01 1.14868e+00 512 2021 10 2.58837e+01 1.34871e+00 452 2021 11 2.07425e+01 1.32386e+00 780 2021 12 1.85005e+01 7.36687e-01 549 2022 1 1.61531e+01 1.63050e+00 569 2022 2 1.56479e+01 1.24103e+00 424 2022 3 1.84441e+01 1.01005e+00 678 2022 4 2.15043e+01 1.18330e+00 465 2022 5 2.52062e+01 1.18564e+00 655 2022 6 2.88752e+01 1.24421e+00 676 2022 7 2.98720e+01 1.15725e+00 604 2022 8 3.03054e+01 1.35371e+00 495 2022 9 2.90902e+01 8.86340e-01 680 2022 10 2.47895e+01 1.60156e+00 763 2022 11 2.14118e+01 2.11971e+00 551 2022 12 1.88393e+01 1.68062e+00 512 2023 1 1.76477e+01 8.74936e-01 576 2023 2 1.80442e+01 1.48899e+00 483 2023 3 2.02158e+01 1.67467e+00 346 2023 4 2.18969e+01 9.48254e-01 456 2023 5 2.46602e+01 1.90981e+00 529 2023 6 2.72684e+01 1.52526e+00 577 2023 7 2.87808e+01 1.52125e+00 679 2023 8 3.04203e+01 1.22508e+00 837 2023 9 2.95837e+01 1.00925e+00 628 2023 10 2.50900e+01 1.81094e+00 828 2023 11 2.10690e+01 1.46850e+00 568 2023 12 1.69155e+01 1.36181e+00 401 2024 1 1.47716e+01 7.00697e-01 360 2024 2 1.54584e+01 9.41395e-01 415 2024 3 1.84253e+01 1.09717e+00 423 2024 4 2.04233e+01 7.38186e-01 48