YEAR MONTH MEAN STDEV COUNT 2002 1 nan nan 0 2002 2 nan nan 0 2002 3 nan nan 0 2002 4 nan nan 0 2002 5 nan nan 0 2002 6 nan nan 0 2002 7 2.18409e+00 5.24501e-01 206 2002 8 2.19008e+00 1.10848e+00 335 2002 9 1.53983e+00 7.73381e-01 424 2002 10 2.26675e+00 6.44943e-01 942 2002 11 2.13127e+00 5.65639e-01 703 2002 12 2.00630e+00 7.43632e-01 471 2003 1 1.78257e+00 6.21629e-01 722 2003 2 3.07586e+00 7.99782e-01 410 2003 3 2.49597e+00 7.19661e-01 255 2003 4 2.94693e+00 8.42311e-01 443 2003 5 3.01524e+00 4.77600e-01 447 2003 6 3.09752e+00 4.42328e-01 122 2003 7 2.74971e+00 7.14076e-01 182 2003 8 3.65160e+00 1.68360e+00 139 2003 9 3.97443e+00 3.39855e+00 144 2003 10 2.43829e+00 1.12366e+00 687 2003 11 2.71807e+00 1.13034e+00 704 2003 12 2.02468e+00 1.08919e+00 685 2004 1 2.75315e+00 8.99750e-01 784 2004 2 2.85449e+00 7.14144e-01 567 2004 3 3.64463e+00 5.88197e-01 663 2004 4 4.23502e+00 4.62265e-01 235 2004 5 3.92909e+00 4.23361e-01 462 2004 6 4.11055e+00 7.19137e-01 403 2004 7 3.41105e+00 7.85330e-01 430 2004 8 1.85337e+00 9.97857e-01 463 2004 9 1.29386e+00 5.84994e-01 167 2004 10 2.33684e+00 1.12680e+00 342 2004 11 2.21408e+00 9.02710e-01 654 2004 12 1.49651e+00 4.17268e-01 318 2005 1 2.26129e+00 6.60580e-01 884 2005 2 1.94313e+00 1.07817e+00 655 2005 3 1.74877e+00 4.09603e-01 334 2005 4 3.01538e+00 7.25289e-01 352 2005 5 3.51975e+00 3.88048e-01 265 2005 6 2.17212e+00 7.41467e-01 261 2005 7 2.57279e+00 1.22018e+00 250 2005 8 2.23484e+00 1.47731e+00 519 2005 9 1.95033e+00 6.56239e-01 446 2005 10 2.51312e+00 8.84564e-01 391 2005 11 1.69528e+00 6.21296e-01 761 2005 12 1.96912e+00 4.12435e-01 711 2006 1 2.07847e+00 3.86527e-01 387 2006 2 2.52943e+00 8.02947e-01 500 2006 3 3.75742e+00 4.40858e-01 846 2006 4 4.57513e+00 5.40630e-01 446 2006 5 4.92467e+00 5.92550e-01 439 2006 6 3.86347e+00 6.54443e-01 400 2006 7 3.10810e+00 5.65340e-01 388 2006 8 2.53563e+00 8.40183e-01 191 2006 9 1.90495e+00 9.87221e-01 375 2006 10 2.32112e+00 1.20703e+00 605 2006 11 2.43061e+00 4.90345e-01 525 2006 12 2.97068e+00 9.01509e-01 320 2007 1 2.97735e+00 7.14552e-01 479 2007 2 3.28246e+00 7.35706e-01 558 2007 3 4.01155e+00 1.16094e+00 469 2007 4 4.35938e+00 6.92173e-01 422 2007 5 4.20349e+00 6.15333e-01 281 2007 6 4.51676e+00 5.19720e-01 250 2007 7 3.55370e+00 6.85765e-01 270 2007 8 2.83645e+00 7.72517e-01 458 2007 9 2.28249e+00 7.05064e-01 671 2007 10 2.48159e+00 6.17133e-01 495 2007 11 3.62695e+00 6.48232e-01 830 2007 12 3.65364e+00 8.90428e-01 819 2008 1 3.71777e+00 1.08514e+00 732 2008 2 3.65602e+00 7.69527e-01 514 2008 3 3.63944e+00 1.10052e+00 441 2008 4 4.03818e+00 5.44966e-01 471 2008 5 4.01730e+00 3.63087e-01 553 2008 6 3.77578e+00 4.32889e-01 377 2008 7 3.66646e+00 1.85898e+00 309 2008 8 2.39948e+00 7.62549e-01 143 2008 9 1.69650e+00 1.10516e+00 457 2008 10 2.59574e+00 1.22854e+00 877 2008 11 3.11741e+00 5.25867e-01 965 2008 12 2.71209e+00 7.40397e-01 961 2009 1 2.65249e+00 7.39230e-01 684 2009 2 3.26325e+00 1.02606e+00 664 2009 3 3.57389e+00 8.57237e-01 708 2009 4 2.71829e+00 1.03587e+00 323 2009 5 3.28193e+00 4.77671e-01 405 2009 6 3.85240e+00 3.60310e-01 170 2009 7 3.18793e+00 5.62034e-01 203 2009 8 2.89384e+00 8.73950e-01 351 2009 9 2.48528e+00 1.54926e+00 653 2009 10 2.23557e+00 5.79743e-01 845 2009 11 3.01682e+00 5.06026e-01 558 2009 12 2.11533e+00 6.35768e-01 397 2010 1 1.59436e+00 4.87174e-01 427 2010 2 2.15037e+00 6.32430e-01 255 2010 3 2.90699e+00 1.00703e+00 359 2010 4 2.82985e+00 9.93519e-01 309 2010 5 3.65394e+00 3.87621e-01 508 2010 6 3.51492e+00 3.24059e-01 368 2010 7 3.79544e+00 5.78308e-01 258 2010 8 2.45216e+00 8.52142e-01 333 2010 9 2.47609e+00 1.10579e+00 467 2010 10 3.49855e+00 6.91859e-01 900 2010 11 3.30807e+00 5.79720e-01 1062 2010 12 1.72638e+00 6.46190e-01 575 2011 1 1.85381e+00 9.21568e-01 380 2011 2 3.67695e+00 9.30239e-01 695 2011 3 4.41691e+00 5.81397e-01 898 2011 4 3.46797e+00 9.74211e-01 542 2011 5 3.48272e+00 5.20193e-01 499 2011 6 3.73177e+00 4.53119e-01 434 2011 7 3.09154e+00 5.56872e-01 344 2011 8 3.87583e+00 9.77630e-01 35 2011 9 2.06469e+00 8.36178e-01 382 2011 10 2.04755e+00 5.93771e-01 378 2011 11 2.32227e+00 8.17491e-01 843 2011 12 2.68792e+00 8.65095e-01 1065 2012 1 3.18168e+00 8.25643e-01 771 2012 2 3.99309e+00 7.66176e-01 471 2012 3 3.51757e+00 6.99077e-01 748 2012 4 4.07135e+00 6.68455e-01 356 2012 5 4.09489e+00 6.57465e-01 378 2012 6 3.82454e+00 2.77915e-01 84 2012 7 2.84568e+00 6.11264e-01 154 2012 8 2.51439e+00 9.17009e-01 187 2012 9 2.44494e+00 7.58543e-01 264 2012 10 1.45179e+00 7.24961e-01 394 2012 11 2.96152e+00 7.15357e-01 853 2012 12 2.59569e+00 6.39273e-01 413 2013 1 2.21335e+00 7.05381e-01 775 2013 2 2.18790e+00 6.85187e-01 798 2013 3 3.07682e+00 7.26542e-01 544 2013 4 3.49741e+00 5.16779e-01 415 2013 5 3.83677e+00 3.70329e-01 432 2013 6 2.69014e+00 5.87602e-01 360 2013 7 2.65656e+00 1.23074e+00 229 2013 8 4.07851e+00 3.35805e+00 177 2013 9 2.50384e+00 1.48615e+00 164 2013 10 2.92616e+00 9.36001e-01 713 2013 11 3.13723e+00 4.47275e-01 373 2013 12 3.24443e+00 4.70199e-01 762 2014 1 2.98085e+00 9.86701e-01 494 2014 2 2.99490e+00 9.70585e-01 648 2014 3 2.98475e+00 1.07887e+00 555 2014 4 4.20982e+00 4.48662e-01 287 2014 5 3.67993e+00 6.28270e-01 433 2014 6 3.83009e+00 3.94967e-01 353 2014 7 3.20046e+00 8.24040e-01 223 2014 8 2.69675e+00 6.93168e-01 444 2014 9 2.03847e+00 6.40076e-01 305 2014 10 2.01152e+00 7.60900e-01 676 2014 11 2.67786e+00 6.63113e-01 750 2014 12 3.12746e+00 5.57766e-01 844 2015 1 2.85956e+00 9.33822e-01 420 2015 2 2.59179e+00 9.51752e-01 719 2015 3 3.44044e+00 7.85500e-01 1011 2015 4 3.81781e+00 5.11432e-01 241 2015 5 4.07168e+00 3.60266e-01 582 2015 6 3.64948e+00 6.18982e-01 434 2015 7 2.44695e+00 7.72106e-01 256 2015 8 2.32641e+00 8.41606e-01 388 2015 9 1.33728e+00 1.07542e-01 45 2015 10 1.50947e+00 5.86492e-01 463 2015 11 2.43237e+00 9.47821e-01 751 2015 12 2.45888e+00 3.48959e-01 256 2016 1 2.25010e+00 9.24267e-01 316 2016 2 1.43713e+00 3.25774e-01 374 2016 3 1.93673e+00 6.82533e-01 266 2016 4 2.79607e+00 4.60657e-01 324 2016 5 3.60559e+00 6.10474e-01 588 2016 6 2.98069e+00 8.06845e-01 401 2016 7 2.62841e+00 6.72298e-01 288 2016 8 2.63049e+00 1.13642e+00 226 2016 9 2.07413e+00 1.19138e+00 404 2016 10 2.21553e+00 6.57561e-01 611 2016 11 2.40294e+00 4.80057e-01 651 2016 12 3.17257e+00 8.63443e-01 820 2017 1 3.17572e+00 8.39867e-01 521 2017 2 2.91303e+00 8.27095e-01 873 2017 3 3.43834e+00 7.08726e-01 609 2017 4 2.83610e+00 4.94560e-01 273 2017 5 2.46916e+00 4.91165e-01 347 2017 6 2.68784e+00 7.94805e-01 168 2017 7 2.93109e+00 6.53656e-01 236 2017 8 2.22852e+00 9.12832e-01 475 2017 9 1.14342e+00 3.71766e-01 277 2017 10 2.74351e+00 1.05558e+00 425 2017 11 2.56777e+00 6.93251e-01 926 2017 12 2.47345e+00 9.12642e-01 745 2018 1 2.44790e+00 9.69815e-01 716 2018 2 2.82214e+00 4.24762e-01 716 2018 3 2.93974e+00 7.13502e-01 718 2018 4 3.74813e+00 4.53723e-01 656 2018 5 4.21657e+00 4.38345e-01 251 2018 6 2.36024e+00 6.41303e-01 306 2018 7 1.86024e+00 5.60473e-01 268 2018 8 3.26452e+00 1.87664e+00 348 2018 9 1.15761e+00 6.00206e-01 594 2018 10 2.00062e+00 1.66900e+00 523 2018 11 1.74083e+00 3.00516e-01 315 2018 12 1.42330e+00 4.52688e-01 380 2019 1 1.57190e+00 4.34481e-01 635 2019 2 2.47251e+00 6.57975e-01 561 2019 3 3.02419e+00 9.10503e-01 571 2019 4 2.66558e+00 7.57198e-01 334 2019 5 3.44302e+00 3.48714e-01 519 2019 6 3.54654e+00 6.31149e-01 282 2019 7 3.09269e+00 7.33014e-01 460 2019 8 3.20033e+00 9.77292e-01 128 2019 9 2.85319e+00 9.31139e-01 545 2019 10 2.60226e+00 8.09697e-01 665 2019 11 2.24528e+00 8.89074e-01 534 2019 12 1.89777e+00 6.84127e-01 464 2020 1 2.46858e+00 9.04457e-01 626 2020 2 2.90083e+00 1.16118e+00 472 2020 3 3.99544e+00 7.83551e-01 538 2020 4 3.62219e+00 8.86840e-01 229 2020 5 4.04052e+00 4.95516e-01 504 2020 6 3.34320e+00 3.19576e-01 392 2020 7 2.94679e+00 7.39616e-01 201 2020 8 2.60357e+00 4.07999e-01 373 2020 9 1.93697e+00 7.71417e-01 350 2020 10 2.36284e+00 1.93170e+00 369 2020 11 1.94667e+00 6.52766e-01 687 2020 12 2.40705e+00 5.16000e-01 461 2021 1 2.96548e+00 7.37334e-01 459 2021 2 2.75306e+00 6.47791e-01 588 2021 3 3.36977e+00 9.14480e-01 408 2021 4 3.41132e+00 3.50872e-01 474 2021 5 3.49992e+00 2.85517e+00 548 2021 6 3.61204e+00 3.38038e-01 200 2021 7 2.79028e+00 6.08954e-01 254 2021 8 2.37628e+00 1.10010e+00 256 2021 9 9.76889e-01 5.09455e-01 101 2021 10 1.67447e+00 1.18931e+00 706 2021 11 2.25406e+00 5.96032e-01 598 2021 12 2.73892e+00 6.39627e-01 841 2022 1 1.70937e+00 6.85925e-01 542 2022 2 2.23212e+00 8.54877e-01 697 2022 3 3.31950e+00 7.72831e-01 649 2022 4 4.05861e+00 4.32121e-01 247 2022 5 4.06528e+00 6.57714e-01 551 2022 6 3.79462e+00 2.74921e-01 159 2022 7 3.12822e+00 7.75753e-01 506 2022 8 2.31988e+00 3.92867e-01 283 2022 9 1.94506e+00 1.15259e+00 409 2022 10 1.34219e+00 1.01310e+00 559 2022 11 1.23206e+00 6.09087e-01 446 2022 12 2.26014e+00 6.71283e-01 752 2023 1 2.36351e+00 6.38224e-01 821 2023 2 1.96774e+00 5.89198e-01 1019 2023 3 2.75907e+00 6.58524e-01 1016 2023 4 3.05291e+00 9.07716e-01 512 2023 5 3.73590e+00 1.04986e+00 603 2023 6 3.70838e+00 1.02639e+00 322 2023 7 2.52628e+00 5.02358e-01 419 2023 8 2.72175e+00 7.65984e-01 441 2023 9 2.13931e+00 5.49151e-01 703 2023 10 2.01236e+00 8.65789e-01 730 2023 11 2.77819e+00 7.09529e-01 835 2023 12 2.19099e+00 1.13461e+00 332 2024 1 2.19969e+00 7.47679e-01 433 2024 2 3.24737e+00 8.47732e-01 779 2024 3 2.61671e+00 6.80453e-01 525 2024 4 nan nan 0