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 5.64444e+00 5.63941e-01 366 2002 8 5.33296e+00 2.04991e+00 386 2002 9 4.77869e+00 1.02145e+00 676 2002 10 4.31825e+00 9.40800e-01 729 2002 11 2.29043e+00 1.03055e+00 384 2002 12 4.48890e+00 9.40386e-01 576 2003 1 4.84650e+00 3.04343e-01 639 2003 2 4.57065e+00 3.36879e-01 384 2003 3 4.78533e+00 1.71153e+00 649 2003 4 4.52834e+00 7.85484e-01 444 2003 5 6.42773e+00 1.08756e+00 447 2003 6 5.65036e+00 1.81925e+00 393 2003 7 6.49998e+00 1.43168e+00 700 2003 8 6.68052e+00 1.24896e+00 588 2003 9 5.56974e+00 2.04165e+00 950 2003 10 5.45747e+00 1.33858e+00 477 2003 11 4.36281e+00 1.18775e+00 580 2003 12 3.54014e+00 7.93803e-01 704 2004 1 3.86893e+00 9.74563e-01 472 2004 2 5.18941e+00 8.93344e-01 950 2004 3 4.11509e+00 1.04465e+00 638 2004 4 3.28356e+00 1.40160e+00 511 2004 5 4.58952e+00 1.53932e+00 319 2004 6 6.23893e+00 6.66098e-01 553 2004 7 7.75484e+00 8.42526e-01 290 2004 8 6.49003e+00 5.79349e-01 576 2004 9 5.75733e+00 1.26442e+00 765 2004 10 3.86124e+00 1.04681e+00 491 2004 11 4.09499e+00 1.08227e+00 769 2004 12 4.40663e+00 4.26552e-01 417 2005 1 2.71287e+00 1.34471e+00 320 2005 2 4.60243e+00 7.39862e-01 701 2005 3 4.67677e+00 7.70100e-01 887 2005 4 4.56066e+00 2.22860e+00 876 2005 5 3.56544e+00 8.76005e-01 384 2005 6 5.01815e+00 2.43440e+00 448 2005 7 5.44215e+00 1.25578e+00 608 2005 8 5.77854e+00 1.14343e+00 713 2005 9 4.77246e+00 1.54667e+00 1018 2005 10 4.12025e+00 1.09571e+00 448 2005 11 3.71364e+00 1.47912e+00 512 2005 12 4.66531e+00 4.54822e-01 628 2006 1 4.56790e+00 1.13481e+00 752 2006 2 5.08489e+00 9.10296e-01 714 2006 3 4.31281e+00 1.28361e+00 896 2006 4 4.86624e+00 2.00820e+00 640 2006 5 4.91613e+00 1.75519e+00 448 2006 6 6.15963e+00 1.06152e+00 385 2006 7 6.85130e+00 1.02191e+00 473 2006 8 5.76483e+00 1.39007e+00 891 2006 9 5.80844e+00 1.59961e+00 624 2006 10 5.17944e+00 1.29513e+00 810 2006 11 4.26760e+00 1.09277e+00 320 2006 12 4.10000e+00 8.57980e-01 448 2007 1 4.64897e+00 4.47323e-01 511 2007 2 4.80529e+00 1.03136e+00 816 2007 3 4.40407e+00 7.97862e-01 822 2007 4 3.29734e+00 1.12003e+00 412 2007 5 4.31205e+00 9.84553e-01 576 2007 6 4.43983e+00 1.81397e+00 322 2007 7 6.69465e+00 1.28929e+00 615 2007 8 5.70768e+00 1.20857e+00 615 2007 9 5.82515e+00 1.40442e+00 1013 2007 10 3.91706e+00 1.26575e+00 523 2007 11 4.44490e+00 6.56333e-01 665 2007 12 4.93027e+00 7.86194e-01 384 2008 1 5.26731e+00 7.73188e-01 509 2008 2 5.83561e+00 6.57127e-01 571 2008 3 4.99676e+00 9.52270e-01 704 2008 4 4.65126e+00 1.11476e+00 704 2008 5 5.14632e+00 1.05597e+00 512 2008 6 5.47254e+00 1.09029e+00 572 2008 7 6.36795e+00 5.32758e-01 702 2008 8 5.39961e+00 1.54634e+00 896 2008 9 5.63051e+00 2.02040e+00 874 2008 10 4.06592e+00 9.42245e-01 830 2008 11 4.29617e+00 1.44552e+00 559 2008 12 4.55428e+00 4.86046e-01 482 2009 1 5.48845e+00 1.12901e+00 806 2009 2 6.07170e+00 6.45166e-01 578 2009 3 6.24546e+00 1.19358e+00 720 2009 4 3.83076e+00 1.53475e+00 556 2009 5 5.02190e+00 1.97089e+00 356 2009 6 4.50268e+00 1.60170e+00 82 2009 7 5.48039e+00 1.71591e+00 576 2009 8 6.52465e+00 1.07271e+00 691 2009 9 4.49342e+00 2.04077e+00 826 2009 10 5.34493e+00 1.18849e+00 453 2009 11 4.13065e+00 5.09666e-01 448 2009 12 3.60813e+00 8.99070e-01 543 2010 1 4.18008e+00 8.76538e-01 774 2010 2 3.88502e+00 8.43765e-01 704 2010 3 3.86395e+00 7.46367e-01 620 2010 4 4.10371e+00 1.79817e+00 733 2010 5 5.50480e+00 1.33517e+00 833 2010 6 6.12207e+00 6.67577e-01 496 2010 7 6.50176e+00 1.00949e+00 882 2010 8 5.22954e+00 1.16573e+00 728 2010 9 4.64076e+00 1.24207e+00 861 2010 10 3.66742e+00 6.53201e-01 752 2010 11 3.38640e+00 5.89274e-01 369 2010 12 4.27207e+00 5.99763e-01 490 2011 1 4.11390e+00 9.14801e-01 635 2011 2 4.38076e+00 7.25347e-01 689 2011 3 3.95010e+00 9.47525e-01 823 2011 4 5.43938e+00 1.05485e+00 295 2011 5 4.48308e+00 2.05327e+00 294 2011 6 6.19178e+00 9.51756e-01 439 2011 7 6.31515e+00 1.31606e+00 663 2011 8 6.52614e+00 1.67383e+00 825 2011 9 5.49413e+00 1.95998e+00 751 2011 10 4.35683e+00 1.15912e+00 505 2011 11 4.17802e+00 1.40940e+00 588 2011 12 4.90547e+00 3.07040e-01 321 2012 1 5.41741e+00 6.71631e-01 775 2012 2 5.09610e+00 8.28465e-01 730 2012 3 4.99368e+00 1.09865e+00 704 2012 4 6.46009e+00 1.71422e+00 1020 2012 5 5.94587e+00 6.20850e-01 448 2012 6 5.43503e+00 1.55423e+00 641 2012 7 6.00971e+00 9.35614e-01 729 2012 8 5.82387e+00 6.97171e-01 787 2012 9 5.31050e+00 1.99766e+00 770 2012 10 4.07788e+00 8.53339e-01 556 2012 11 3.48502e+00 8.58063e-01 538 2012 12 3.52509e+00 7.27260e-01 448 2013 1 3.84797e+00 6.78528e-01 703 2013 2 3.98938e+00 1.22245e+00 627 2013 3 5.28050e+00 5.36430e-01 283 2013 4 5.46871e+00 2.10035e+00 986 2013 5 5.36795e+00 1.95173e+00 466 2013 6 5.41335e+00 1.88318e+00 479 2013 7 6.50119e+00 7.94497e-01 512 2013 8 4.72255e+00 1.62270e+00 522 2013 9 4.44944e+00 1.17608e+00 1023 2013 10 4.55595e+00 9.99893e-01 576 2013 11 3.57223e+00 6.38029e-01 722 2013 12 4.77157e+00 2.77924e-01 192 2014 1 4.38778e+00 9.12175e-01 645 2014 2 5.45856e+00 5.19064e-01 512 2014 3 4.85126e+00 5.78467e-01 512 2014 4 4.06721e+00 1.12868e+00 565 2014 5 5.75818e+00 1.65556e+00 660 2014 6 5.32574e+00 1.54949e+00 759 2014 7 5.41886e+00 2.26619e+00 565 2014 8 5.82449e+00 1.46714e+00 1072 2014 9 5.36237e+00 1.45605e+00 868 2014 10 5.31292e+00 1.13501e+00 724 2014 11 3.81549e+00 8.43606e-01 431 2014 12 5.00489e+00 4.81507e-01 256 2015 1 4.28343e+00 1.29194e+00 604 2015 2 3.43133e+00 1.19821e+00 413 2015 3 4.65181e+00 1.01768e+00 847 2015 4 8.20480e+00 9.92276e-01 705 2015 5 5.23488e+00 1.88471e+00 511 2015 6 7.12861e+00 1.07601e+00 431 2015 7 5.69266e+00 2.15312e+00 495 2015 8 7.20678e+00 8.85032e-01 837 2015 9 5.72259e+00 1.30611e+00 801 2015 10 3.12968e+00 7.41505e-01 810 2015 11 3.52675e+00 8.84263e-01 828 2015 12 3.27420e+00 7.54800e-01 508 2016 1 4.11468e+00 4.82241e-01 540 2016 2 4.26492e+00 4.38975e-01 704 2016 3 5.97473e+00 1.15070e+00 512 2016 4 4.15440e+00 1.20514e+00 533 2016 5 4.73221e+00 2.09660e+00 305 2016 6 5.98434e+00 1.03931e+00 779 2016 7 6.99372e+00 8.06603e-01 625 2016 8 6.28252e+00 1.39468e+00 1063 2016 9 3.79990e+00 1.29655e+00 588 2016 10 4.21765e+00 1.38762e+00 586 2016 11 3.59317e+00 8.85048e-01 845 2016 12 2.86416e+00 9.43991e-01 585 2017 1 4.21010e+00 7.21046e-01 561 2017 2 5.00956e+00 3.90081e-01 740 2017 3 5.39834e+00 9.68810e-01 918 2017 4 4.76210e+00 1.51405e+00 571 2017 5 2.86633e+00 1.11059e+00 269 2017 6 3.95022e+00 1.47316e+00 636 2017 7 5.46479e+00 1.43851e+00 678 2017 8 4.99665e+00 1.44426e+00 1004 2017 9 3.76633e+00 1.20546e+00 709 2017 10 3.07699e+00 1.20197e+00 822 2017 11 4.01094e+00 5.99673e-01 660 2017 12 5.24626e+00 6.00025e-01 368 2018 1 4.45391e+00 7.64491e-01 671 2018 2 4.82080e+00 4.75440e-01 448 2018 3 3.43108e+00 7.56784e-01 279 2018 4 5.02022e+00 1.51439e+00 636 2018 5 5.46894e+00 1.54562e+00 482 2018 6 5.52469e+00 7.89110e-01 372 2018 7 6.06824e+00 1.11558e+00 656 2018 8 5.76756e+00 1.72480e+00 704 2018 9 5.68035e+00 1.39824e+00 780 2018 10 3.94750e+00 7.06613e-01 618 2018 11 3.46619e+00 2.69095e-01 448 2018 12 4.20653e+00 5.65772e-01 590 2019 1 4.63493e+00 1.07316e+00 656 2019 2 5.04981e+00 1.28699e+00 512 2019 3 6.29788e+00 6.74466e-01 887 2019 4 5.39810e+00 2.53406e+00 666 2019 5 4.53435e+00 1.68645e+00 386 2019 6 5.58018e+00 1.05096e+00 384 2019 7 5.68452e+00 7.19292e-01 879 2019 8 5.60908e+00 1.04777e+00 760 2019 9 3.39264e+00 1.32967e+00 912 2019 10 3.33012e+00 7.82671e-01 330 2019 11 3.56934e+00 9.11223e-01 585 2019 12 4.28250e+00 4.69143e-01 403 2020 1 5.00056e+00 8.30531e-01 832 2020 2 4.89718e+00 1.29021e+00 789 2020 3 3.69168e+00 5.70017e-01 642 2020 4 3.76191e+00 7.93186e-01 438 2020 5 5.41369e+00 1.95911e+00 902 2020 6 5.46836e+00 8.41601e-01 460 2020 7 5.81512e+00 5.42781e-01 623 2020 8 5.72299e+00 3.18980e-01 256 2020 9 6.13500e+00 1.31684e+00 639 2020 10 5.07026e+00 1.59513e+00 704 2020 11 3.04716e+00 1.04789e+00 586 2020 12 2.96319e+00 1.07354e+00 384 2021 1 3.75073e+00 9.36368e-01 570 2021 2 4.91466e+00 7.69325e-01 457 2021 3 4.25282e+00 8.97724e-01 920 2021 4 4.74443e+00 1.52937e+00 958 2021 5 4.67453e+00 1.02704e+00 641 2021 6 5.69889e+00 1.11726e+00 590 2021 7 5.39370e+00 1.59908e+00 537 2021 8 5.85823e+00 8.97384e-01 331 2021 9 5.12894e+00 7.78186e-01 638 2021 10 4.16479e+00 1.17698e+00 704 2021 11 2.89018e+00 1.13761e+00 855 2021 12 3.88704e+00 3.08470e-01 304 2022 1 4.36771e+00 5.61579e-01 475 2022 2 5.76669e+00 7.84721e-01 707 2022 3 5.10013e+00 1.68422e+00 732 2022 4 4.32950e+00 3.29895e-01 191 2022 5 5.62040e+00 1.88143e+00 426 2022 6 5.17821e+00 7.45121e-01 641 2022 7 6.71546e+00 4.28721e-01 1021 2022 8 6.99820e+00 1.21074e+00 960 2022 9 4.15431e+00 1.61453e+00 814 2022 10 4.21203e+00 1.56318e+00 768 2022 11 4.00643e+00 1.09089e+00 885 2022 12 4.48080e+00 5.12250e-01 391 2023 1 5.12951e+00 6.44189e-01 320 2023 2 5.84148e+00 1.50797e+00 448 2023 3 6.23540e+00 1.38637e+00 655 2023 4 5.07720e+00 1.02612e+00 460 2023 5 3.55853e+00 1.67193e+00 728 2023 6 5.57347e+00 9.00252e-01 472 2023 7 4.09342e+00 1.24387e+00 860 2023 8 4.25116e+00 7.07833e-01 641 2023 9 4.65496e+00 1.98924e+00 595 2023 10 4.09205e+00 1.21462e+00 892 2023 11 2.44680e+00 1.09140e+00 624 2023 12 3.20021e+00 9.73391e-01 431 2024 1 3.43153e+00 9.67245e-01 429 2024 2 3.64013e+00 6.92657e-01 832 2024 3 4.43184e+00 9.18429e-01 582 2024 4 nan nan 0