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 1.38121e+01 2.00563e-01 44 2002 8 9.98338e+00 8.57363e-01 477 2002 9 1.04986e+01 5.79264e-01 322 2002 10 8.02974e+00 9.23594e-01 1024 2002 11 5.91164e+00 1.62361e+00 613 2002 12 6.58972e+00 1.73248e+00 768 2003 1 5.56078e+00 1.19269e+00 1122 2003 2 7.83425e+00 1.36714e+00 640 2003 3 1.01757e+01 6.39720e-01 320 2003 4 8.86596e+00 1.34258e+00 704 2003 5 1.12201e+01 1.03326e+00 847 2003 6 1.11599e+01 1.14128e+00 256 2003 7 1.33620e+01 5.77775e-01 419 2003 8 1.08997e+01 1.18123e+00 328 2003 9 8.54512e+00 8.79619e-01 448 2003 10 7.70826e+00 9.61137e-01 960 2003 11 6.46924e+00 1.81408e+00 1191 2003 12 5.64202e+00 1.58321e+00 832 2004 1 7.55892e+00 7.11753e-01 704 2004 2 8.48348e+00 1.41303e+00 499 2004 3 1.17921e+01 9.16901e-01 1085 2004 4 9.68272e+00 2.07594e+00 512 2004 5 1.31883e+01 1.27781e+00 632 2004 6 1.24667e+01 1.12518e+00 681 2004 7 1.34454e+01 2.42230e+00 407 2004 8 1.18485e+01 8.69886e-01 333 2004 9 7.16583e+00 2.75926e+00 367 2004 10 5.89957e+00 1.18030e+00 901 2004 11 8.07366e+00 1.34777e+00 883 2004 12 5.94312e+00 2.20065e+00 477 2005 1 5.10587e+00 2.07259e+00 758 2005 2 5.24071e+00 1.75456e+00 789 2005 3 7.08970e+00 1.30946e+00 413 2005 4 9.83335e+00 1.48658e+00 827 2005 5 1.31197e+01 1.10498e+00 749 2005 6 1.18343e+01 1.23808e+00 384 2005 7 8.25101e+00 3.34827e+00 695 2005 8 7.74608e+00 8.95443e-01 720 2005 9 3.60635e+00 1.46645e+00 448 2005 10 3.62364e+00 9.75831e-01 960 2005 11 3.77328e+00 9.87242e-01 874 2005 12 5.18089e+00 3.65424e-01 833 2006 1 7.27129e+00 2.03048e+00 496 2006 2 7.14630e+00 1.82679e+00 923 2006 3 9.69811e+00 9.96598e-01 1109 2006 4 1.26409e+01 5.55439e-01 705 2006 5 1.34872e+01 1.15835e+00 832 2006 6 1.22475e+01 1.22749e+00 645 2006 7 1.18208e+01 1.24677e+00 571 2006 8 1.13785e+01 1.28733e+00 469 2006 9 7.60448e+00 2.68509e+00 661 2006 10 6.44996e+00 8.42301e-01 891 2006 11 6.62103e+00 2.58087e+00 695 2006 12 6.37316e+00 1.52121e+00 396 2007 1 8.47701e+00 1.35549e+00 704 2007 2 8.91629e+00 1.60568e+00 672 2007 3 1.23985e+01 2.00904e+00 704 2007 4 9.52956e+00 2.89634e+00 921 2007 5 1.10482e+01 1.66389e+00 556 2007 6 1.28076e+01 6.83111e-01 431 2007 7 1.36163e+01 5.93139e-01 561 2007 8 1.27185e+01 8.24342e-01 725 2007 9 9.63430e+00 1.60474e+00 792 2007 10 1.03143e+01 4.27943e-01 582 2007 11 8.69875e+00 1.00555e+00 1024 2007 12 8.72919e+00 2.46640e+00 985 2008 1 8.08686e+00 2.17294e+00 704 2008 2 1.04206e+01 2.25100e+00 704 2008 3 9.85193e+00 2.64979e+00 796 2008 4 1.21152e+01 1.26322e+00 896 2008 5 9.90699e+00 1.25269e+00 680 2008 6 1.38137e+01 7.95901e-01 762 2008 7 1.18733e+01 1.20500e+00 384 2008 8 1.25434e+01 3.84095e-01 163 2008 9 8.40907e+00 1.79640e+00 448 2008 10 9.15374e+00 1.20702e+00 877 2008 11 7.99823e+00 9.99897e-01 1042 2008 12 7.89491e+00 2.48647e+00 1318 2009 1 8.50422e+00 2.18672e+00 816 2009 2 9.81258e+00 2.46024e+00 1024 2009 3 1.07403e+01 2.24579e+00 1152 2009 4 9.70332e+00 1.01290e+00 635 2009 5 1.16538e+01 1.38431e+00 818 2009 6 1.11978e+01 1.12459e+00 252 2009 7 1.42513e+01 5.33911e-01 337 2009 8 1.35122e+01 1.76897e+00 384 2009 9 9.87848e+00 8.43620e-01 502 2009 10 9.26784e+00 1.12105e+00 938 2009 11 7.45302e+00 1.13887e+00 589 2009 12 6.12178e+00 1.84920e+00 301 2010 1 7.97606e+00 1.35466e+00 460 2010 2 6.46800e+00 1.73271e+00 559 2010 3 5.98388e+00 1.46950e+00 955 2010 4 8.72990e+00 2.56148e+00 704 2010 5 1.21027e+01 7.83761e-01 640 2010 6 1.37619e+01 6.97316e-01 708 2010 7 1.30156e+01 7.61971e-01 384 2010 8 1.11790e+01 1.34229e+00 549 2010 9 1.19874e+01 1.11971e+00 846 2010 10 1.00241e+01 1.02875e+00 1408 2010 11 9.03166e+00 9.95215e-01 1147 2010 12 4.98778e+00 1.41416e+00 706 2011 1 8.07948e+00 1.49480e+00 697 2011 2 9.54069e+00 1.17831e+00 704 2011 3 1.04540e+01 1.09728e+00 1069 2011 4 1.05070e+01 1.62064e+00 907 2011 5 7.77751e+00 1.84721e+00 881 2011 6 1.11409e+01 5.90943e-01 565 2011 7 1.37850e+01 1.19618e+00 510 2011 8 1.21928e+01 4.88692e-01 508 2011 9 9.20342e+00 1.31285e+00 384 2011 10 6.36133e+00 1.72684e+00 656 2011 11 8.15847e+00 1.71569e+00 1173 2011 12 7.90151e+00 1.57554e+00 1152 2012 1 7.70841e+00 2.11572e+00 884 2012 2 8.86710e+00 2.01048e+00 677 2012 3 1.12201e+01 1.32550e+00 1029 2012 4 1.02040e+01 6.97646e-01 676 2012 5 1.23604e+01 5.03696e-01 553 2012 6 7.88487e+00 3.55208e+00 192 2012 7 1.11002e+01 7.96606e-01 343 2012 8 1.36225e+01 1.14394e+00 332 2012 9 8.99329e+00 1.49327e+00 448 2012 10 9.36589e+00 1.74634e+00 610 2012 11 7.36119e+00 1.27383e+00 912 2012 12 5.64665e+00 2.34081e+00 644 2013 1 7.96804e+00 2.06959e+00 1023 2013 2 7.96854e+00 1.83406e+00 704 2013 3 8.34455e+00 1.26431e+00 832 2013 4 1.21854e+01 9.04250e-01 640 2013 5 8.43801e+00 1.04203e+00 645 2013 6 1.10824e+01 1.23633e+00 592 2013 7 1.06598e+01 2.05641e+00 202 2013 8 1.10438e+01 1.26693e+00 639 2013 9 9.18878e+00 1.06222e+00 1020 2013 10 7.17547e+00 8.88875e-01 766 2013 11 7.79972e+00 2.18067e+00 511 2013 12 7.05037e+00 5.53883e-01 639 2014 1 4.56046e+00 1.40936e+00 441 2014 2 7.03575e+00 1.17753e+00 759 2014 3 7.44440e+00 1.21390e+00 686 2014 4 9.42476e+00 6.62960e-01 565 2014 5 1.10168e+01 1.40776e+00 774 2014 6 1.18763e+01 1.47137e+00 558 2014 7 1.23922e+01 1.18683e+00 426 2014 8 1.07120e+01 1.05485e+00 704 2014 9 8.45958e+00 1.76563e+00 272 2014 10 8.14092e+00 1.03035e+00 995 2014 11 6.17735e+00 1.82990e+00 937 2014 12 7.02055e+00 7.17022e-01 952 2015 1 5.74213e+00 1.81025e+00 712 2015 2 6.65679e+00 6.45941e-01 640 2015 3 1.10454e+01 1.18025e+00 1160 2015 4 1.13975e+01 6.96039e-01 576 2015 5 8.46079e+00 1.34288e+00 1088 2015 6 1.03267e+01 8.31431e-01 448 2015 7 9.64164e+00 1.07443e+00 262 2015 8 9.61971e+00 1.36070e+00 572 2015 9 9.22500e+00 1.37038e+00 322 2015 10 6.31914e+00 4.79357e-01 731 2015 11 6.84723e+00 7.19002e-01 896 2015 12 7.76359e+00 1.82523e+00 517 2016 1 4.68750e+00 2.31204e+00 424 2016 2 4.47977e+00 1.88282e+00 998 2016 3 8.64231e+00 2.16734e+00 708 2016 4 9.95112e+00 5.71542e-01 768 2016 5 9.26947e+00 1.31435e+00 832 2016 6 1.08715e+01 2.03637e+00 556 2016 7 1.08954e+01 1.28486e+00 650 2016 8 9.97040e+00 1.09566e+00 646 2016 9 9.33117e+00 2.52128e+00 636 2016 10 8.92986e+00 1.44423e+00 896 2016 11 9.20392e+00 8.85026e-01 960 2016 12 9.58284e+00 5.82497e-01 784 2017 1 7.43642e+00 2.82546e+00 832 2017 2 9.69045e+00 1.47713e+00 1208 2017 3 1.07845e+01 1.34059e+00 1109 2017 4 1.17680e+01 9.39087e-01 607 2017 5 8.94633e+00 1.44703e+00 707 2017 6 1.11617e+01 9.71225e-01 256 2017 7 1.26400e+01 1.17364e+00 487 2017 8 9.30985e+00 1.10442e+00 673 2017 9 6.23844e+00 1.81291e+00 909 2017 10 5.70356e+00 1.44671e+00 747 2017 11 6.55746e+00 6.46661e-01 1024 2017 12 7.85127e+00 1.56546e+00 781 2018 1 5.62280e+00 1.42693e+00 625 2018 2 1.05763e+01 1.36329e+00 960 2018 3 1.04540e+01 2.63213e+00 944 2018 4 1.13226e+01 2.17506e+00 929 2018 5 1.28090e+01 1.13665e+00 512 2018 6 1.10685e+01 8.35542e-01 379 2018 7 1.19990e+01 5.71768e-01 512 2018 8 1.16945e+01 1.63703e+00 920 2018 9 8.95788e+00 3.43938e+00 944 2018 10 7.62898e+00 3.45224e+00 1024 2018 11 6.39040e+00 1.62846e+00 590 2018 12 5.71860e+00 2.18924e+00 613 2019 1 6.60744e+00 1.65747e+00 705 2019 2 1.08001e+01 1.18543e+00 768 2019 3 1.04934e+01 1.07356e+00 960 2019 4 1.00240e+01 2.09131e+00 701 2019 5 1.23872e+01 6.86529e-01 1152 2019 6 1.21890e+01 9.03400e-01 534 2019 7 1.04389e+01 1.43416e+00 575 2019 8 8.83369e+00 1.14587e+00 534 2019 9 9.38156e+00 1.38448e+00 760 2019 10 8.14802e+00 1.70163e+00 901 2019 11 6.87638e+00 7.26556e-01 494 2019 12 7.16599e+00 3.11866e-01 341 2020 1 7.21142e+00 1.65489e+00 829 2020 2 8.15033e+00 1.73639e+00 704 2020 3 1.23091e+01 1.99310e+00 832 2020 4 1.30155e+01 1.84085e+00 448 2020 5 1.18027e+01 1.13486e+00 710 2020 6 1.09230e+01 1.07082e+00 418 2020 7 1.00602e+01 1.59249e+00 483 2020 8 1.12883e+01 7.36382e-01 256 2020 9 9.01307e+00 1.40253e+00 354 2020 10 7.27160e+00 8.51942e-01 889 2020 11 5.51067e+00 1.33222e+00 882 2020 12 5.18768e+00 1.01851e+00 768 2021 1 6.99209e+00 1.26788e+00 709 2021 2 9.79865e+00 1.79929e+00 832 2021 3 1.10214e+01 8.36091e-01 861 2021 4 1.05691e+01 1.22782e+00 875 2021 5 1.17635e+01 1.06805e+00 834 2021 6 1.04811e+01 8.88123e-01 320 2021 7 1.00518e+01 2.16171e+00 450 2021 8 1.04246e+01 1.01937e+00 516 2021 9 6.84939e+00 1.35787e+00 577 2021 10 6.76134e+00 1.90824e+00 909 2021 11 6.33428e+00 1.25896e+00 832 2021 12 7.07476e+00 1.61007e+00 896 2022 1 5.30536e+00 1.49352e+00 780 2022 2 8.09464e+00 1.55575e+00 1088 2022 3 8.76504e+00 2.04643e+00 755 2022 4 1.21017e+01 4.74706e-01 384 2022 5 1.33177e+01 1.19440e+00 576 2022 6 1.19093e+01 7.30274e-01 512 2022 7 1.06997e+01 2.27914e+00 490 2022 8 7.47020e+00 7.46427e-01 331 2022 9 7.74367e+00 1.64570e+00 570 2022 10 6.84318e+00 1.38605e+00 1163 2022 11 8.57966e+00 1.31871e+00 870 2022 12 8.58825e+00 7.80950e-01 768 2023 1 9.13281e+00 1.74267e+00 842 2023 2 9.54329e+00 2.56876e+00 1152 2023 3 1.14413e+01 1.22041e+00 960 2023 4 1.25064e+01 1.38481e+00 384 2023 5 1.11489e+01 2.37139e+00 583 2023 6 1.15698e+01 1.10799e+00 624 2023 7 9.66209e+00 1.07321e+00 624 2023 8 5.01458e+00 6.68430e-01 384 2023 9 7.29653e+00 1.66541e+00 606 2023 10 8.92380e+00 1.01492e+00 640 2023 11 8.92950e+00 1.23179e+00 818 2023 12 7.88952e+00 2.31637e+00 332 2024 1 7.73053e+00 9.18834e-01 326 2024 2 8.39824e+00 1.66156e+00 947 2024 3 1.10767e+01 1.33402e+00 489 2024 4 nan nan 0