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 1.25982e+01 3.52962e+00 322 2002 8 1.52022e+01 3.08876e+00 344 2002 9 1.06487e+01 5.32349e+00 464 2002 10 7.96069e+00 4.75796e+00 1178 2002 11 5.24247e+00 4.11273e+00 933 2002 12 3.38752e+00 1.88442e+00 512 2003 1 3.48850e+00 2.76163e+00 613 2003 2 1.04537e+01 4.67396e+00 640 2003 3 1.18350e+01 6.70512e+00 352 2003 4 1.15657e+01 5.34416e+00 734 2003 5 1.27666e+01 2.40554e+00 455 2003 6 1.44985e+01 4.47031e+00 186 2003 7 1.22289e+01 3.83581e+00 382 2003 8 1.51405e+01 5.20460e+00 484 2003 9 1.08784e+01 7.82024e+00 468 2003 10 9.12011e+00 6.79595e+00 1081 2003 11 5.74571e+00 6.24735e+00 1009 2003 12 5.18697e+00 4.52376e+00 855 2004 1 7.96014e+00 4.90761e+00 981 2004 2 8.52064e+00 5.57893e+00 688 2004 3 1.63463e+01 5.23105e+00 1266 2004 4 2.04494e+01 3.36509e+00 384 2004 5 2.07371e+01 2.68580e+00 511 2004 6 1.92445e+01 6.15612e+00 572 2004 7 1.31813e+01 3.39534e+00 498 2004 8 8.49965e+00 4.05289e+00 610 2004 9 8.15718e-01 8.92922e-01 292 2004 10 4.03813e+00 4.95687e+00 985 2004 11 7.87116e+00 9.57173e+00 990 2004 12 2.37694e+00 2.49958e+00 651 2005 1 5.14514e+00 4.38570e+00 949 2005 2 5.00036e+00 3.62608e+00 958 2005 3 4.81605e+00 4.25984e+00 320 2005 4 4.32465e+00 2.49889e+00 576 2005 5 1.58990e+01 3.43313e+00 469 2005 6 1.32621e+01 2.80185e+00 128 2005 7 9.39604e+00 5.83681e+00 539 2005 8 1.11248e+01 4.68994e+00 571 2005 9 5.82002e+00 7.70020e+00 581 2005 10 4.83025e+00 7.29735e+00 655 2005 11 2.69442e+00 2.61709e+00 1049 2005 12 7.55771e-01 9.48188e-01 704 2006 1 2.19737e+00 2.41042e+00 534 2006 2 6.48783e+00 5.65805e+00 676 2006 3 1.29442e+01 5.22872e+00 942 2006 4 2.13466e+01 4.66765e+00 607 2006 5 2.26220e+01 4.68497e+00 704 2006 6 1.74815e+01 3.33016e+00 705 2006 7 1.40265e+01 2.95763e+00 512 2006 8 1.22284e+01 6.42973e+00 436 2006 9 1.04607e+01 5.14490e+00 704 2006 10 3.75906e+00 3.17126e+00 1016 2006 11 5.26222e+00 4.94650e+00 616 2006 12 9.76026e+00 3.52807e+00 485 2007 1 6.18675e+00 4.72052e+00 555 2007 2 1.08367e+01 4.95637e+00 512 2007 3 1.28977e+01 6.55513e+00 666 2007 4 1.47491e+01 6.99160e+00 486 2007 5 2.43305e+01 6.14193e+00 250 2007 6 1.74142e+01 4.35149e+00 501 2007 7 1.50225e+01 3.79786e+00 653 2007 8 1.31329e+01 4.54285e+00 737 2007 9 9.19155e+00 2.82767e+00 829 2007 10 7.29639e+00 4.03062e+00 549 2007 11 1.61786e+01 6.73351e+00 1038 2007 12 1.13973e+01 5.76463e+00 1324 2008 1 1.02665e+01 6.19318e+00 581 2008 2 1.43438e+01 6.88827e+00 873 2008 3 1.16418e+01 6.21700e+00 526 2008 4 1.82224e+01 7.85275e+00 883 2008 5 1.76288e+01 3.92678e+00 582 2008 6 1.81427e+01 3.39293e+00 511 2008 7 1.56045e+01 3.55227e+00 370 2008 8 7.02028e+00 3.82103e+00 339 2008 9 8.33273e+00 4.77016e+00 675 2008 10 4.51707e+00 3.89050e+00 980 2008 11 6.85160e+00 5.45292e+00 1270 2008 12 4.80005e+00 3.94772e+00 1268 2009 1 9.33725e+00 6.88411e+00 832 2009 2 8.98763e+00 6.79254e+00 774 2009 3 1.72783e+01 7.59137e+00 647 2009 4 1.29733e+01 6.90798e+00 432 2009 5 2.03792e+01 5.86774e+00 640 2009 6 1.89109e+01 2.03241e+00 320 2009 7 1.21624e+01 4.82773e+00 444 2009 8 1.29180e+01 2.30775e+00 440 2009 9 1.09270e+01 3.87567e+00 713 2009 10 8.12872e+00 6.47843e+00 1101 2009 11 6.96366e+00 5.83788e+00 800 2009 12 2.73787e+00 2.05119e+00 465 2010 1 2.60121e+00 3.51815e+00 644 2010 2 1.92736e+00 1.39589e+00 150 2010 3 1.13684e+01 8.37360e+00 465 2010 4 1.70872e+01 4.81831e+00 473 2010 5 1.76963e+01 4.03151e+00 666 2010 6 2.20472e+01 4.45792e+00 884 2010 7 1.43427e+01 3.97695e+00 543 2010 8 9.58027e+00 4.29608e+00 576 2010 9 6.10854e+00 3.65748e+00 561 2010 10 1.03861e+01 2.80190e+00 1030 2010 11 1.19533e+01 5.10009e+00 1088 2010 12 1.39806e+00 2.51779e+00 762 2011 1 2.82386e+00 3.95496e+00 617 2011 2 1.52205e+01 6.76779e+00 1001 2011 3 1.68178e+01 5.67348e+00 1135 2011 4 1.36632e+01 5.77954e+00 726 2011 5 1.97226e+01 4.48252e+00 532 2011 6 1.40103e+01 5.48317e+00 524 2011 7 1.22967e+01 3.88872e+00 436 2011 8 8.88996e+00 6.10186e+00 384 2011 9 4.69258e+00 3.18832e+00 535 2011 10 1.59395e+00 1.75185e+00 360 2011 11 2.32887e+00 2.88543e+00 724 2011 12 4.52868e+00 3.39490e+00 1205 2012 1 8.55178e+00 5.43398e+00 1208 2012 2 1.37383e+01 6.17690e+00 616 2012 3 1.48960e+01 5.81135e+00 1151 2012 4 1.79133e+01 4.69051e+00 677 2012 5 1.86746e+01 4.10611e+00 472 2012 6 1.20937e+01 4.26842e+00 285 2012 7 1.35311e+01 4.83689e+00 444 2012 8 1.19832e+01 2.73121e+00 430 2012 9 9.69781e+00 6.32473e+00 478 2012 10 4.12706e+00 3.35486e+00 839 2012 11 5.75584e+00 4.41588e+00 817 2012 12 4.57534e+00 4.35147e+00 766 2013 1 5.57837e+00 3.98169e+00 969 2013 2 3.69143e+00 2.91279e+00 889 2013 3 8.11628e+00 5.56465e+00 832 2013 4 1.50099e+01 6.34567e+00 672 2013 5 1.62579e+01 3.75724e+00 640 2013 6 1.58347e+01 5.60407e+00 570 2013 7 8.44695e+00 3.30533e+00 341 2013 8 9.06112e+00 7.59176e+00 377 2013 9 1.22979e+01 7.29742e+00 753 2013 10 1.17256e+01 6.46404e+00 886 2013 11 5.40264e+00 4.54771e+00 306 2013 12 8.45326e+00 2.85274e+00 640 2014 1 7.80420e+00 6.20787e+00 665 2014 2 1.18854e+01 6.10749e+00 775 2014 3 9.10132e+00 5.89124e+00 805 2014 4 1.64980e+01 6.52847e+00 431 2014 5 1.04807e+01 5.04700e+00 572 2014 6 6.34434e+00 2.96324e+00 446 2014 7 1.36133e+01 4.11410e+00 372 2014 8 7.13949e+00 2.80904e+00 433 2014 9 8.84732e+00 4.59600e+00 447 2014 10 8.11522e+00 6.17838e+00 1162 2014 11 3.97815e+00 3.78744e+00 872 2014 12 1.20020e+01 4.05037e+00 802 2015 1 8.85534e+00 5.21233e+00 576 2015 2 5.68089e+00 6.16415e+00 731 2015 3 1.75673e+01 5.59236e+00 1147 2015 4 2.14189e+01 2.90878e+00 443 2015 5 1.52521e+01 4.89591e+00 917 2015 6 1.85013e+01 2.99334e+00 605 2015 7 1.16756e+01 2.08583e+00 256 2015 8 8.88673e+00 3.91257e+00 448 2015 9 8.47991e+00 3.93262e+00 315 2015 10 8.43163e+00 6.51383e+00 622 2015 11 6.24711e+00 4.06213e+00 968 2015 12 9.28267e+00 3.37788e+00 407 2016 1 6.40854e+00 5.35363e+00 384 2016 2 2.30821e+00 1.94067e+00 712 2016 3 5.52734e+00 4.33576e+00 497 2016 4 8.93789e+00 4.18378e+00 580 2016 5 1.77808e+01 3.49369e+00 826 2016 6 1.62996e+01 4.75927e+00 532 2016 7 1.34330e+01 4.32008e+00 571 2016 8 1.23577e+01 6.69196e+00 444 2016 9 1.16945e+01 5.61782e+00 779 2016 10 4.53348e+00 4.17910e+00 871 2016 11 4.21366e+00 3.79962e+00 970 2016 12 1.12257e+01 2.56022e+00 768 2017 1 7.23406e+00 6.74965e+00 806 2017 2 9.56258e+00 5.25272e+00 831 2017 3 1.45725e+01 7.46619e+00 893 2017 4 9.76626e+00 6.51706e+00 541 2017 5 1.54560e+01 6.05758e+00 707 2017 6 1.21474e+01 2.40632e+00 195 2017 7 1.52066e+01 3.65994e+00 320 2017 8 8.55761e+00 4.22195e+00 512 2017 9 5.68749e+00 7.65766e+00 930 2017 10 7.47736e+00 7.88125e+00 581 2017 11 2.73058e+00 3.68843e+00 932 2017 12 1.92858e+00 1.69554e+00 1247 2018 1 3.16750e+00 3.69980e+00 704 2018 2 9.57592e+00 4.49516e+00 966 2018 3 1.12837e+01 7.20937e+00 1086 2018 4 1.67688e+01 3.83845e+00 934 2018 5 1.82527e+01 4.60888e+00 286 2018 6 9.60449e+00 1.55767e+00 320 2018 7 8.83102e+00 6.26630e+00 418 2018 8 3.53723e+00 4.32870e+00 213 2018 9 5.94262e+00 7.46430e+00 677 2018 10 5.79543e+00 7.44520e+00 768 2018 11 1.19537e+00 1.49626e+00 515 2018 12 7.32773e-01 7.80620e-01 573 2019 1 2.28935e+00 2.72605e+00 555 2019 2 1.25203e+01 7.03290e+00 751 2019 3 1.27414e+01 7.24892e+00 887 2019 4 1.32332e+01 7.03940e+00 503 2019 5 2.52303e+01 2.95293e+00 682 2019 6 2.58060e+01 6.71352e+00 598 2019 7 1.85350e+01 2.81012e+00 384 2019 8 1.65830e+01 4.77752e+00 395 2019 9 1.05256e+01 4.33218e+00 348 2019 10 1.20299e+01 7.49508e+00 814 2019 11 1.52616e+00 1.37733e+00 738 2019 12 7.19746e+00 6.04892e+00 758 2020 1 9.25318e+00 6.04286e+00 832 2020 2 1.08982e+01 7.41119e+00 896 2020 3 1.80093e+01 7.86374e+00 1073 2020 4 1.72772e+01 8.22702e+00 448 2020 5 2.15835e+01 6.36131e+00 576 2020 6 1.57549e+01 2.14711e+00 436 2020 7 1.43279e+01 3.82294e+00 384 2020 8 1.41349e+01 3.07260e+00 425 2020 9 9.46551e+00 5.02920e+00 346 2020 10 1.20366e+01 5.47941e+00 588 2020 11 2.24391e+00 2.22245e+00 679 2020 12 9.67308e-01 2.02041e+00 600 2021 1 4.63815e+00 4.83596e+00 649 2021 2 7.24197e+00 4.06757e+00 850 2021 3 1.14801e+01 6.34526e+00 828 2021 4 1.63971e+01 4.00789e+00 829 2021 5 1.31024e+01 5.23982e+00 865 2021 6 1.99829e+01 5.43836e+00 128 2021 7 1.41483e+01 4.59155e+00 391 2021 8 1.35512e+01 4.09230e+00 330 2021 9 8.66003e+00 5.15880e+00 607 2021 10 8.10836e+00 6.84312e+00 915 2021 11 3.78413e+00 2.58627e+00 725 2021 12 6.11494e+00 3.81650e+00 1047 2022 1 4.20292e+00 2.97083e+00 701 2022 2 9.47161e+00 6.21761e+00 1054 2022 3 1.33226e+01 5.55557e+00 1013 2022 4 1.27098e+01 4.04809e+00 384 2022 5 1.53217e+01 4.07144e+00 576 2022 6 1.89691e+01 4.16311e+00 512 2022 7 2.31487e+01 6.44030e+00 322 2022 8 1.15271e+01 5.22108e+00 640 2022 9 5.65840e+00 4.67894e+00 486 2022 10 1.58069e+00 3.14894e+00 882 2022 11 1.25683e+00 1.97830e+00 768 2022 12 2.72826e+00 2.93876e+00 938 2023 1 4.10573e+00 4.35832e+00 802 2023 2 5.95430e+00 4.76140e+00 1152 2023 3 3.32356e+00 4.54045e+00 840 2023 4 1.45636e+01 6.23987e+00 527 2023 5 1.28070e+01 4.28823e+00 649 2023 6 1.45198e+01 3.97740e+00 388 2023 7 8.91244e+00 7.36276e+00 482 2023 8 1.09168e+01 4.17372e+00 343 2023 9 1.05926e+01 4.59865e+00 704 2023 10 7.34743e+00 5.70647e+00 854 2023 11 6.04217e+00 6.08304e+00 903 2023 12 1.10503e+01 9.18246e+00 315 2024 1 7.02221e+00 4.43583e+00 153 2024 2 1.15160e+01 6.72772e+00 821 2024 3 1.27136e+01 5.91287e+00 609 2024 4 nan nan 0