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 2.28706e+00 5.19189e-01 192 2002 8 2.69177e+00 7.53061e-01 376 2002 9 1.92528e+00 1.06734e+00 416 2002 10 2.15440e+00 4.10011e-01 931 2002 11 1.94130e+00 3.27754e-01 697 2002 12 1.73946e+00 3.70394e-01 746 2003 1 1.15717e+00 2.92003e-01 1023 2003 2 1.79729e+00 3.94288e-01 552 2003 3 1.86636e+00 5.72318e-01 320 2003 4 2.65290e+00 5.25505e-01 630 2003 5 2.32211e+00 4.82175e-01 361 2003 6 2.11386e+00 3.62469e-01 105 2003 7 2.36979e+00 1.49367e-01 64 2003 8 1.87303e+00 1.42633e+00 183 2003 9 2.00076e+00 8.50411e-01 313 2003 10 1.52770e+00 1.37891e-01 525 2003 11 1.94214e+00 3.52371e-01 888 2003 12 1.97236e+00 3.06987e-01 710 2004 1 1.94181e+00 4.16672e-01 839 2004 2 2.49091e+00 4.34748e-01 469 2004 3 2.45680e+00 4.96882e-01 640 2004 4 2.86864e+00 7.36969e-01 436 2004 5 3.27754e+00 2.34777e-01 410 2004 6 3.14647e+00 4.21253e-01 268 2004 7 2.08817e+00 4.01195e-01 163 2004 8 1.92631e+00 3.30014e-01 179 2004 9 1.55334e+00 5.00461e-01 339 2004 10 1.21727e+00 4.80707e-01 572 2004 11 1.41476e+00 2.26514e-01 725 2004 12 1.24951e+00 4.76809e-01 384 2005 1 1.37728e+00 3.27375e-01 593 2005 2 1.86781e+00 4.14084e-01 689 2005 3 1.92066e+00 4.32889e-01 576 2005 4 2.18340e+00 5.82073e-01 626 2005 5 2.45315e+00 4.90742e-01 358 2005 6 2.04843e+00 4.04650e-01 191 2005 7 3.14032e+00 1.65431e+00 239 2005 8 2.08978e+00 4.54486e-01 350 2005 9 1.81175e+00 5.02420e-01 365 2005 10 1.83832e+00 3.78493e-01 578 2005 11 1.99582e+00 2.40648e-01 780 2005 12 2.04708e+00 3.79630e-01 816 2006 1 2.37153e+00 4.09074e-01 466 2006 2 2.61879e+00 4.37080e-01 896 2006 3 3.32943e+00 4.07854e-01 1070 2006 4 3.21230e+00 3.03148e-01 673 2006 5 2.94635e+00 2.66870e-01 465 2006 6 2.62240e+00 4.39533e-01 493 2006 7 2.64829e+00 3.22230e-01 189 2006 8 2.68784e+00 8.45778e-01 189 2006 9 1.53146e+00 9.28575e-01 591 2006 10 1.64044e+00 3.62303e-01 929 2006 11 2.03692e+00 2.93932e-01 743 2006 12 2.52792e+00 4.38600e-01 387 2007 1 2.51560e+00 3.51204e-01 437 2007 2 2.82636e+00 7.85121e-01 576 2007 3 3.12709e+00 5.62906e-01 658 2007 4 2.68150e+00 6.60286e-01 537 2007 5 3.33341e+00 4.12710e-01 383 2007 6 3.07575e+00 6.17180e-01 176 2007 7 3.01467e+00 3.86124e-01 361 2007 8 2.21183e+00 2.75641e-01 429 2007 9 2.08813e+00 5.03336e-01 448 2007 10 2.18935e+00 3.32765e-01 351 2007 11 2.31222e+00 2.98981e-01 907 2007 12 2.39793e+00 4.01149e-01 997 2008 1 2.09724e+00 6.26876e-01 639 2008 2 2.62109e+00 3.00857e-01 642 2008 3 2.65302e+00 6.64304e-01 590 2008 4 3.01554e+00 3.96876e-01 536 2008 5 2.99123e+00 4.75981e-01 503 2008 6 2.86926e+00 6.54479e-01 480 2008 7 3.14061e+00 3.30737e-01 192 2008 8 2.10696e+00 3.09072e-01 250 2008 9 2.38869e+00 4.49381e-01 304 2008 10 2.40384e+00 5.95234e-01 865 2008 11 2.08821e+00 3.60233e-01 1097 2008 12 2.50541e+00 4.87482e-01 868 2009 1 2.38408e+00 5.36980e-01 850 2009 2 2.41828e+00 6.12538e-01 772 2009 3 3.16572e+00 8.38503e-01 974 2009 4 2.80450e+00 9.53526e-01 271 2009 5 3.10188e+00 4.20459e-01 446 2009 6 3.00537e+00 8.22254e-01 195 2009 7 1.86229e+00 4.05702e-01 384 2009 8 1.88528e+00 4.02314e-01 411 2009 9 1.71049e+00 5.62724e-01 517 2009 10 1.76091e+00 2.83791e-01 675 2009 11 1.42959e+00 3.12675e-01 737 2009 12 1.99567e+00 3.10128e-01 427 2010 1 2.08958e+00 3.81691e-01 576 2010 2 1.48499e+00 3.23836e-01 583 2010 3 1.77061e+00 3.87309e-01 861 2010 4 2.89088e+00 6.34951e-01 623 2010 5 2.62942e+00 5.64056e-01 492 2010 6 3.01430e+00 3.56075e-01 524 2010 7 2.51411e+00 2.25586e-01 98 2010 8 2.20405e+00 2.31966e-01 262 2010 9 2.04898e+00 4.29070e-01 445 2010 10 1.82900e+00 2.93507e-01 1459 2010 11 1.89564e+00 5.72006e-01 1024 2010 12 1.69546e+00 4.84276e-01 1006 2011 1 2.56934e+00 4.44282e-01 648 2011 2 2.86877e+00 6.48004e-01 840 2011 3 2.93724e+00 5.28478e-01 984 2011 4 3.09580e+00 5.21480e-01 775 2011 5 2.90108e+00 4.99979e-01 570 2011 6 2.73554e+00 4.46259e-01 371 2011 7 2.93640e+00 5.30947e-01 255 2011 8 2.33187e+00 6.52070e-01 226 2011 9 2.31711e+00 4.32090e-01 197 2011 10 1.61807e+00 2.08064e-01 671 2011 11 1.50625e+00 2.88565e-01 970 2011 12 2.63995e+00 4.20930e-01 1108 2012 1 2.68089e+00 4.15178e-01 789 2012 2 2.90082e+00 6.51815e-01 622 2012 3 3.01844e+00 5.20720e-01 860 2012 4 3.32374e+00 6.12163e-01 547 2012 5 2.89950e+00 2.87105e-01 384 2012 6 1.21100e+00 1.82884e-01 122 2012 7 1.60964e+00 1.58419e-01 192 2012 8 2.05214e+00 1.98455e-01 192 2012 9 1.92847e+00 4.84982e-01 333 2012 10 1.37590e+00 2.29617e-01 424 2012 11 1.81134e+00 2.85678e-01 648 2012 12 1.78866e+00 4.60247e-01 436 2013 1 2.41093e+00 3.41738e-01 750 2013 2 2.61308e+00 4.36122e-01 759 2013 3 2.56399e+00 4.54549e-01 792 2013 4 2.92557e+00 5.03216e-01 447 2013 5 2.85047e+00 6.21239e-01 578 2013 6 2.44058e+00 5.77321e-01 384 2013 7 1.70475e+00 4.49276e-01 304 2013 8 2.50358e+00 1.04992e+00 359 2013 9 2.12281e+00 8.32831e-01 643 2013 10 2.09712e+00 6.88609e-01 780 2013 11 2.06032e+00 3.50572e-01 72 2013 12 1.89212e+00 3.34954e-01 634 2014 1 2.01125e+00 4.61771e-01 576 2014 2 2.46975e+00 4.81381e-01 704 2014 3 2.80248e+00 4.84454e-01 670 2014 4 2.83907e+00 5.10642e-01 499 2014 5 2.66083e+00 4.89531e-01 501 2014 6 2.73758e+00 5.53502e-01 558 2014 7 2.59687e+00 3.95042e-01 396 2014 8 2.31819e+00 3.59693e-01 504 2014 9 2.32515e+00 3.48206e-01 136 2014 10 1.62925e+00 5.07537e-01 1091 2014 11 1.66695e+00 3.32351e-01 924 2014 12 1.60604e+00 4.33362e-01 610 2015 1 1.66661e+00 3.02139e-01 539 2015 2 1.54436e+00 3.60666e-01 605 2015 3 2.71560e+00 7.04201e-01 495 2015 4 2.80655e+00 4.47117e-01 378 2015 5 2.84808e+00 4.95768e-01 513 2015 6 3.09502e+00 3.82690e-01 433 2015 7 2.45406e+00 3.59618e-01 118 2015 8 1.65326e+00 3.08566e-01 387 2015 9 2.45161e+00 9.73236e-01 283 2015 10 2.22869e+00 1.52534e+00 628 2015 11 1.61160e+00 2.94636e-01 563 2015 12 1.74630e+00 3.32770e-01 257 2016 1 1.69936e+00 3.05661e-01 576 2016 2 1.66116e+00 3.52870e-01 892 2016 3 2.14785e+00 5.59902e-01 448 2016 4 2.77594e+00 4.06098e-01 489 2016 5 2.74226e+00 6.36901e-01 509 2016 6 2.73210e+00 7.83977e-01 320 2016 7 1.82312e+00 5.09137e-01 202 2016 8 2.08260e+00 4.90891e-01 391 2016 9 2.08612e+00 7.14449e-01 725 2016 10 1.70371e+00 5.26474e-01 516 2016 11 1.65425e+00 2.70695e-01 668 2016 12 2.14789e+00 4.93320e-01 826 2017 1 2.19713e+00 4.34602e-01 823 2017 2 2.64644e+00 4.75998e-01 1166 2017 3 3.14482e+00 6.45577e-01 837 2017 4 3.24188e+00 4.76870e-01 549 2017 5 2.56231e+00 8.03907e-01 375 2017 6 2.90751e+00 3.05711e-01 177 2017 7 1.85485e+00 3.32687e-01 192 2017 8 2.28310e+00 8.88991e-01 319 2017 9 1.41272e+00 4.04517e-01 612 2017 10 1.44394e+00 2.69465e-01 515 2017 11 1.94441e+00 3.11819e-01 1038 2017 12 2.40330e+00 3.44845e-01 887 2018 1 1.86135e+00 4.05010e-01 668 2018 2 2.28272e+00 5.06929e-01 592 2018 3 1.84143e+00 4.31808e-01 992 2018 4 2.96065e+00 7.17308e-01 737 2018 5 2.91068e+00 5.23911e-01 355 2018 6 2.71899e+00 6.94614e-01 416 2018 7 2.73487e+00 3.37382e-01 330 2018 8 1.93632e+00 1.46593e+00 329 2018 9 1.69866e+00 2.45204e+00 465 2018 10 1.98236e+00 7.53998e-01 841 2018 11 1.48576e+00 3.83401e-01 482 2018 12 1.85095e+00 4.21122e-01 538 2019 1 1.71988e+00 3.84872e-01 771 2019 2 1.97481e+00 7.57538e-01 604 2019 3 2.56015e+00 6.18344e-01 858 2019 4 2.48539e+00 5.73655e-01 420 2019 5 3.52508e+00 4.93036e-01 604 2019 6 2.69385e+00 5.89030e-01 437 2019 7 2.40451e+00 4.54197e-01 512 2019 8 1.51345e+00 2.72024e-01 147 2019 9 1.90661e+00 4.48736e-01 384 2019 10 2.22282e+00 3.51963e-01 693 2019 11 2.29114e+00 3.16907e-01 542 2019 12 1.95050e+00 4.25869e-01 241 2020 1 1.91742e+00 4.90599e-01 636 2020 2 2.32676e+00 7.75126e-01 576 2020 3 2.78200e+00 6.05868e-01 514 2020 4 2.56321e+00 6.26315e-01 256 2020 5 3.13631e+00 5.11648e-01 742 2020 6 2.60129e+00 4.01273e-01 384 2020 7 2.52413e+00 4.70955e-01 192 2020 8 2.81201e+00 2.79707e-01 256 2020 9 1.93353e+00 3.84066e-01 161 2020 10 1.89240e+00 5.85780e-01 484 2020 11 1.46033e+00 4.06658e-01 631 2020 12 1.61839e+00 5.97482e-01 626 2021 1 1.89693e+00 6.99880e-01 592 2021 2 1.75127e+00 2.78010e-01 595 2021 3 2.63690e+00 6.11419e-01 596 2021 4 2.82786e+00 4.52403e-01 677 2021 5 2.86945e+00 4.45540e-01 702 2021 6 3.00023e+00 2.88939e-01 201 2021 7 2.12973e+00 5.91502e-01 227 2021 8 2.15387e+00 8.48426e-01 373 2021 9 1.79328e+00 8.81422e-01 395 2021 10 2.06058e+00 1.32884e+00 752 2021 11 1.69489e+00 3.72936e-01 857 2021 12 1.95582e+00 3.25852e-01 931 2022 1 1.91213e+00 4.45875e-01 745 2022 2 2.36432e+00 5.27788e-01 1333 2022 3 2.89770e+00 6.48916e-01 831 2022 4 nan nan 0 2022 5 3.04554e+00 4.49194e-01 641 2022 6 3.01082e+00 2.06900e-01 235 2022 7 2.84908e+00 4.56422e-01 303 2022 8 2.04964e+00 2.65552e-01 227 2022 9 2.24688e+00 8.43788e-01 479 2022 10 1.42145e+00 5.52107e-01 857 2022 11 1.76112e+00 3.67163e-01 512 2022 12 1.75718e+00 2.03360e-01 719 2023 1 2.04691e+00 4.01365e-01 832 2023 2 2.26953e+00 4.63555e-01 1035 2023 3 2.38116e+00 5.01244e-01 859 2023 4 3.07578e+00 3.57696e-01 342 2023 5 3.39255e+00 4.16003e-01 512 2023 6 2.66219e+00 4.16548e-01 295 2023 7 2.92432e+00 2.10901e-01 256 2023 8 2.81429e+00 4.45220e-01 384 2023 9 2.16099e+00 2.50469e-01 643 2023 10 2.31453e+00 5.81899e-01 545 2023 11 2.24528e+00 4.73524e-01 754 2023 12 1.77163e+00 4.22641e-01 244 2024 1 1.20429e+00 1.50469e-01 218 2024 2 2.04054e+00 5.79704e-01 673 2024 3 2.48231e+00 4.48455e-01 395 2024 4 nan nan 0