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 9.64067e-01 3.64969e-01 244 2002 8 9.74080e-01 2.51064e-01 518 2002 9 1.49206e+00 5.98521e-01 463 2002 10 1.19721e+00 3.53175e-01 808 2002 11 1.16439e+00 4.08140e-01 806 2002 12 9.64311e-01 3.75529e-01 615 2003 1 1.39207e+00 4.60572e-01 909 2003 2 9.33878e-01 3.89356e-01 512 2003 3 5.00353e+00 3.90979e+00 203 2003 4 4.55649e+00 3.53864e+00 186 2003 5 7.16852e+00 7.61589e+00 128 2003 6 2.56771e+00 3.95759e+00 345 2003 7 4.28215e+00 4.27144e+00 194 2003 8 3.40247e+00 4.13334e+00 387 2003 9 2.60255e+00 1.62936e+00 623 2003 10 3.13409e+00 2.78389e+00 987 2003 11 1.44241e+00 7.79587e-01 1151 2003 12 1.19146e+00 5.53718e-01 832 2004 1 1.47167e+00 2.83520e+00 834 2004 2 9.52749e-01 3.88905e-01 384 2004 3 1.90574e+00 2.72366e+00 790 2004 4 6.70698e-01 2.81045e-01 547 2004 5 6.93994e-01 2.69791e-01 651 2004 6 1.20874e+00 8.17844e-01 479 2004 7 1.46911e+00 4.13495e-01 448 2004 8 1.57028e+00 1.66955e+00 548 2004 9 4.31960e+00 5.15858e+00 277 2004 10 1.21891e+01 1.05176e+01 371 2004 11 1.64503e+01 1.06677e+01 414 2004 12 8.49241e+00 8.04973e+00 554 2005 1 5.96160e+00 6.96676e+00 751 2005 2 3.31853e+00 1.68574e+00 693 2005 3 1.90090e+00 6.47892e-01 512 2005 4 3.26670e+00 2.02337e+00 586 2005 5 8.25855e+00 1.16669e+01 431 2005 6 4.57762e+00 2.55097e+00 439 2005 7 9.50532e+00 6.66788e+00 467 2005 8 6.91236e+00 6.32528e+00 164 2005 9 5.62814e+00 2.95263e+00 380 2005 10 2.32360e+00 1.37787e+00 960 2005 11 1.07214e+00 3.34006e-01 1133 2005 12 9.05666e-01 4.59145e-01 1073 2006 1 2.35993e+00 1.06609e+00 704 2006 2 2.29379e+00 1.49038e+00 704 2006 3 2.85003e+00 1.96640e+00 1004 2006 4 1.13634e+00 9.83691e-01 353 2006 5 6.71298e-01 3.12511e-01 576 2006 6 9.31313e-01 4.15900e-01 466 2006 7 1.02780e+00 5.22515e-01 384 2006 8 1.32522e+00 7.53004e-01 422 2006 9 1.53399e+00 2.19731e+00 615 2006 10 1.00584e+00 5.58997e-01 1007 2006 11 7.01292e-01 3.27196e-01 942 2006 12 4.60721e-01 1.85593e-01 513 2007 1 4.34057e-01 1.98477e-01 419 2007 2 4.12950e-01 2.06272e-01 700 2007 3 4.94202e-01 2.35654e-01 1199 2007 4 5.94921e-01 4.65160e-01 851 2007 5 6.08058e-01 3.35328e-01 256 2007 6 6.60764e-01 2.09439e-01 505 2007 7 1.02904e+00 3.92341e-01 452 2007 8 1.35337e+00 5.22542e-01 587 2007 9 2.12644e+00 4.96008e-01 550 2007 10 1.03826e+00 5.18520e-01 760 2007 11 5.22870e-01 2.18821e-01 1216 2007 12 5.93156e-01 5.42930e-01 754 2008 1 4.77694e-01 3.41759e-01 640 2008 2 6.32877e-01 3.46583e-01 925 2008 3 2.10693e+00 2.27064e+00 710 2008 4 2.69419e+00 2.10692e+00 789 2008 5 2.22323e+00 8.06852e-01 584 2008 6 2.62633e+00 1.74490e+00 391 2008 7 1.47653e+00 1.07017e+00 541 2008 8 1.26405e+00 3.92977e-01 327 2008 9 3.20790e+00 2.29277e+00 496 2008 10 2.19626e+00 2.05040e+00 1001 2008 11 7.84449e-01 4.70731e-01 1086 2008 12 2.04526e+00 7.43592e-01 940 2009 1 1.83385e+00 6.03912e-01 704 2009 2 9.47106e-01 3.69744e-01 1061 2009 3 5.97582e-01 3.74385e-01 884 2009 4 1.28548e+00 9.39127e-01 478 2009 5 4.35179e+00 3.15191e+00 273 2009 6 9.73546e-01 3.56144e-01 398 2009 7 8.42338e-01 3.48605e-01 215 2009 8 2.78687e+00 1.61289e+00 461 2009 9 1.79353e+00 1.63215e+00 789 2009 10 9.10657e-01 4.19969e-01 790 2009 11 6.46145e-01 2.98746e-01 709 2009 12 8.10110e-01 4.27972e-01 215 2010 1 1.66574e+00 7.45028e-01 896 2010 2 2.95002e+00 1.58918e+00 749 2010 3 3.63202e+00 1.07111e+00 832 2010 4 5.20712e+00 4.06534e+00 289 2010 5 1.97785e+00 1.15880e+00 576 2010 6 1.50126e+00 1.27465e+00 587 2010 7 2.06515e+00 8.52926e-01 386 2010 8 2.35505e+00 1.38225e+00 293 2010 9 1.41362e+00 7.32854e-01 602 2010 10 8.23319e-01 4.01889e-01 1598 2010 11 5.13640e-01 3.69158e-01 1105 2010 12 6.90704e-01 6.01670e-01 1133 2011 1 4.68266e-01 2.03518e-01 633 2011 2 4.56082e-01 1.27612e-01 768 2011 3 3.83162e-01 1.88225e-01 867 2011 4 3.96082e-01 1.96914e-01 967 2011 5 4.89373e-01 1.93011e-01 857 2011 6 6.57198e-01 6.16374e-01 250 2011 7 1.21878e+00 5.96517e-01 383 2011 8 1.43009e+00 3.94377e+00 446 2011 9 8.33474e-01 3.12726e-01 768 2011 10 6.31423e-01 4.66286e-01 1059 2011 11 3.82719e-01 1.93402e-01 1151 2011 12 4.15154e-01 1.43281e-01 1066 2012 1 4.56441e-01 2.74409e-01 1143 2012 2 3.61101e-01 1.44947e-01 317 2012 3 3.99952e-01 1.80859e-01 893 2012 4 4.69986e-01 1.47826e-01 894 2012 5 6.16689e-01 1.90313e-01 446 2012 6 1.32192e+00 9.08003e-01 255 2012 7 5.62243e+00 6.03439e+00 469 2012 8 7.98900e+00 7.01793e+00 370 2012 9 8.51132e+00 5.14027e+00 411 2012 10 4.72734e+00 3.75246e+00 807 2012 11 2.61522e+00 1.96111e+00 1042 2012 12 2.68948e+00 2.10413e+00 765 2013 1 1.28190e+00 9.08193e-01 704 2013 2 7.15826e-01 2.21245e-01 704 2013 3 7.21695e-01 3.61803e-01 768 2013 4 3.92944e+00 4.11795e+00 479 2013 5 2.26092e+00 1.70219e+00 543 2013 6 3.49459e+00 1.95744e+00 557 2013 7 8.18838e+00 2.48439e+00 64 2013 8 1.44622e+01 1.20473e+01 399 2013 9 1.25687e+01 9.73700e+00 749 2013 10 4.12861e+00 3.08122e+00 1090 2013 11 2.41196e+00 1.51460e+00 338 2013 12 8.37898e-01 4.16935e-01 574 2014 1 7.29650e-01 2.07191e-01 512 2014 2 2.65133e+00 2.78904e+00 737 2014 3 3.51439e+00 2.29955e+00 637 2014 4 7.26140e+00 7.32273e+00 329 2014 5 1.21937e+01 1.12737e+01 189 2014 6 8.12970e+00 7.30781e+00 216 2014 7 4.22463e+00 1.96356e+00 640 2014 8 1.71125e+00 7.58327e-01 482 2014 9 5.94056e+00 5.92018e+00 359 2014 10 3.23400e+00 2.68590e+00 1381 2014 11 6.33351e-01 2.79863e-01 1088 2014 12 1.08644e+00 1.14972e+00 645 2015 1 6.65091e-01 5.95759e-01 830 2015 2 7.00110e-01 4.90631e-01 782 2015 3 6.43064e+00 4.42527e+00 438 2015 4 2.59047e+00 2.80566e+00 187 2015 5 1.39235e+00 5.68725e-01 723 2015 6 1.27063e+00 4.92126e-01 387 2015 7 1.82039e+00 9.26267e-01 294 2015 8 3.99103e+00 2.33611e+00 459 2015 9 4.33408e+00 5.25827e+00 317 2015 10 1.22713e+00 8.96887e-01 869 2015 11 1.80614e+00 1.05578e+00 814 2015 12 7.74442e-01 4.02906e-01 470 2016 1 8.81091e-01 3.93848e-01 640 2016 2 1.42769e+00 8.53476e-01 1263 2016 3 1.62317e+00 9.14168e-01 823 2016 4 1.92431e+00 1.15229e+00 384 2016 5 1.45375e+00 7.55347e-01 784 2016 6 8.71019e-01 3.29021e-01 560 2016 7 1.15172e+00 8.70363e-01 883 2016 8 1.89879e+00 2.00217e+00 693 2016 9 2.85855e+00 1.51399e+00 876 2016 10 7.59144e-01 4.22731e-01 1099 2016 11 3.78566e-01 1.38268e-01 1136 2016 12 4.83010e-01 1.75922e-01 887 2017 1 6.62949e-01 4.44969e-01 698 2017 2 1.10514e+00 9.62348e-01 1088 2017 3 8.31316e-01 7.94275e-01 1010 2017 4 6.59021e-01 3.68137e-01 786 2017 5 7.75365e-01 2.87266e-01 562 2017 6 9.70947e-01 4.50841e-01 342 2017 7 1.69468e+00 4.57467e-01 193 2017 8 3.06882e+00 1.61074e+00 599 2017 9 3.05946e+00 2.77818e+00 617 2017 10 6.61341e+00 4.91734e+00 448 2017 11 1.64306e+00 1.63958e+00 1338 2017 12 8.45141e-01 3.65554e-01 703 2018 1 5.29884e-01 1.95927e-01 640 2018 2 6.30353e-01 4.33551e-01 567 2018 3 6.33905e-01 3.11542e-01 988 2018 4 8.60962e-01 3.69299e-01 659 2018 5 7.63033e-01 4.41902e-01 528 2018 6 1.45990e+00 9.24831e-01 320 2018 7 5.20737e+00 4.49980e+00 192 2018 8 3.58820e+00 5.47864e+00 381 2018 9 2.78910e+00 3.00968e+00 778 2018 10 3.11355e+00 4.35870e+00 1290 2018 11 1.63645e+00 3.32914e-01 286 2018 12 3.47008e+00 3.79156e+00 735 2019 1 5.43388e+00 3.42031e+00 708 2019 2 7.45374e+00 4.60402e+00 318 2019 3 4.11690e+00 4.27767e+00 771 2019 4 2.98564e+00 1.53497e+00 416 2019 5 1.36384e+00 7.36256e-01 930 2019 6 1.31951e+00 8.40365e-01 247 2019 7 1.96585e+00 2.43536e+00 352 2019 8 5.25914e+00 4.81786e+00 558 2019 9 8.24023e-01 3.69849e-01 820 2019 10 1.17310e+00 5.11175e-01 695 2019 11 7.00905e-01 6.16424e-01 896 2019 12 7.56826e-01 3.61101e-01 576 2020 1 6.24407e-01 2.83114e-01 769 2020 2 7.47591e-01 4.27116e-01 576 2020 3 1.08818e+00 8.90321e-01 753 2020 4 1.10711e+00 5.43106e-01 587 2020 5 1.13644e+00 9.34002e-01 837 2020 6 1.36038e+00 6.30258e-01 510 2020 7 1.15719e+00 8.11913e-01 256 2020 8 2.15415e+00 1.66672e+00 172 2020 9 3.82599e+00 4.36559e+00 390 2020 10 4.15131e+00 5.00926e+00 884 2020 11 2.36702e+00 1.78129e+00 1065 2020 12 6.00356e-01 3.49994e-01 869 2021 1 9.59310e-01 4.22589e-01 704 2021 2 2.39294e+00 9.58474e-01 493 2021 3 2.85518e+00 2.02162e+00 385 2021 4 3.59595e+00 3.86463e+00 594 2021 5 1.85005e+00 1.08755e+00 791 2021 6 9.91488e-01 4.63093e-01 318 2021 7 2.72246e+00 1.13350e+00 132 2021 8 1.38905e+01 1.18892e+01 238 2021 9 1.03498e+01 7.62531e+00 575 2021 10 7.45487e+00 9.10860e+00 655 2021 11 2.49345e+00 1.59229e+00 951 2021 12 2.11977e+00 9.75253e-01 640 2022 1 1.66013e+00 1.03652e+00 896 2022 2 1.14952e+00 6.81922e-01 984 2022 3 1.24892e+00 7.73501e-01 828 2022 4 5.08835e+00 4.92728e+00 114 2022 5 2.31050e+00 1.38686e+00 576 2022 6 2.37456e+00 2.79035e+00 551 2022 7 2.35723e+00 1.44716e+00 341 2022 8 3.51313e+00 3.21437e+00 492 2022 9 3.44135e+00 2.88111e+00 364 2022 10 7.17423e-01 3.71823e-01 1213 2022 11 1.22495e+00 9.72627e-01 511 2022 12 7.05001e-01 3.83158e-01 916 2023 1 6.19940e-01 2.73223e-01 902 2023 2 8.29115e-01 2.99867e-01 681 2023 3 1.67159e+00 1.00891e+00 767 2023 4 1.96330e+00 7.25469e-01 384 2023 5 1.60053e+00 7.52641e-01 322 2023 6 6.61903e-01 3.45536e-01 246 2023 7 4.28164e+00 7.21188e+00 529 2023 8 3.90836e+00 2.56988e+00 648 2023 9 3.30334e+00 2.70354e+00 587 2023 10 2.40961e+00 1.87065e+00 697 2023 11 7.04359e-01 3.57398e-01 711 2023 12 1.72417e+00 1.98196e+00 320 2024 1 6.04790e+00 4.67374e+00 592 2024 2 4.30882e+00 3.35987e+00 576 2024 3 3.74827e+00 1.11069e+00 325 2024 4 nan nan 0