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 6.11509e+01 1.56450e-01 258 2002 8 5.90361e+01 5.95626e-01 301 2002 9 5.28711e+01 2.18201e+00 305 2002 10 4.61992e+01 2.63235e+00 886 2002 11 3.86901e+01 1.82214e+00 557 2002 12 3.40483e+01 4.09123e-01 610 2003 1 3.56852e+01 1.08667e+00 640 2003 2 4.22996e+01 2.14170e+00 443 2003 3 5.14760e+01 2.58432e+00 629 2003 4 5.81990e+01 1.38455e+00 514 2003 5 6.13929e+01 6.57483e-01 332 2003 6 6.24157e+01 3.70422e-02 190 2003 7 6.14847e+01 8.28075e-01 171 2003 8 5.86929e+01 9.64535e-01 463 2003 9 5.36884e+01 1.36737e+00 304 2003 10 4.62565e+01 1.74123e+00 499 2003 11 3.65468e+01 1.03626e+00 336 2003 12 3.38911e+01 2.96541e-01 487 2004 1 3.69393e+01 1.29975e+00 558 2004 2 4.32033e+01 2.62859e+00 548 2004 3 5.17791e+01 2.33826e+00 726 2004 4 5.78597e+01 1.24799e+00 538 2004 5 6.15891e+01 7.78857e-01 263 2004 6 6.24503e+01 1.02692e-01 580 2004 7 6.15302e+01 5.17337e-01 498 2004 8 5.80049e+01 1.09336e+00 510 2004 9 5.17914e+01 1.33236e+00 239 2004 10 4.45777e+01 2.42904e+00 599 2004 11 3.66221e+01 1.36565e+00 208 2004 12 3.40460e+01 3.27932e-01 431 2005 1 3.67971e+01 1.41537e+00 705 2005 2 4.39342e+01 1.30771e+00 459 2005 3 5.14039e+01 2.23152e+00 501 2005 4 5.76777e+01 1.45329e+00 390 2005 5 6.17874e+01 4.91690e-01 512 2005 6 6.24847e+01 2.01227e-01 325 2005 7 6.12948e+01 4.78958e-01 347 2005 8 5.88192e+01 1.42184e+00 444 2005 9 5.42907e+01 1.46219e+00 709 2005 10 4.61031e+01 1.97887e+00 416 2005 11 3.79460e+01 2.07729e+00 541 2005 12 3.40614e+01 3.39210e-01 665 2006 1 3.51405e+01 8.90733e-01 522 2006 2 4.44352e+01 2.12332e+00 653 2006 3 5.16250e+01 2.33031e+00 718 2006 4 5.78810e+01 1.28255e+00 731 2006 5 6.14527e+01 5.68814e-01 490 2006 6 6.25593e+01 1.83051e-01 488 2006 7 6.08001e+01 3.93267e-01 370 2006 8 5.83956e+01 1.03860e+00 272 2006 9 5.24146e+01 1.79405e+00 507 2006 10 4.59819e+01 1.54241e+00 502 2006 11 3.73007e+01 1.27465e+00 476 2006 12 3.39524e+01 3.93527e-01 87 2007 1 3.70311e+01 1.65219e+00 685 2007 2 4.41578e+01 2.19002e+00 500 2007 3 5.05007e+01 2.57078e+00 389 2007 4 5.77540e+01 1.51724e+00 512 2007 5 6.11158e+01 5.27760e-01 319 2007 6 6.25196e+01 1.27895e-01 491 2007 7 6.12874e+01 6.42577e-01 558 2007 8 5.90778e+01 1.37655e+00 333 2007 9 5.34676e+01 1.90636e+00 306 2007 10 4.57771e+01 2.50321e+00 278 2007 11 3.80439e+01 1.76020e+00 804 2007 12 3.40688e+01 4.71111e-01 363 2008 1 3.66732e+01 1.91874e+00 343 2008 2 4.37882e+01 2.90557e+00 455 2008 3 5.15857e+01 2.20152e+00 449 2008 4 5.77968e+01 1.55475e+00 292 2008 5 6.15685e+01 5.52746e-01 345 2008 6 6.25110e+01 1.13549e-01 484 2008 7 6.06838e+01 5.01931e-01 270 2008 8 5.92908e+01 1.05803e+00 460 2008 9 5.31620e+01 1.45213e+00 337 2008 10 4.82581e+01 1.23736e+00 316 2008 11 3.71345e+01 1.51125e+00 700 2008 12 3.38442e+01 2.05142e-01 479 2009 1 3.73627e+01 1.78895e+00 491 2009 2 4.35982e+01 1.94893e+00 461 2009 3 5.06155e+01 2.28557e+00 424 2009 4 5.75751e+01 1.53047e+00 486 2009 5 6.12940e+01 5.09035e-01 330 2009 6 6.25597e+01 1.12932e-01 428 2009 7 6.14122e+01 7.87011e-01 334 2009 8 5.88616e+01 1.11114e+00 427 2009 9 5.28777e+01 1.76482e+00 368 2009 10 4.68830e+01 1.92995e+00 730 2009 11 3.74452e+01 1.75661e+00 576 2009 12 3.42140e+01 4.52183e-01 301 2010 1 3.62708e+01 1.70848e+00 516 2010 2 4.45404e+01 2.09854e+00 634 2010 3 5.17263e+01 2.56369e+00 493 2010 4 5.76118e+01 1.58382e+00 456 2010 5 6.14708e+01 5.05900e-01 448 2010 6 6.24382e+01 1.33972e-01 551 2010 7 6.06333e+01 4.65526e-01 256 2010 8 5.89481e+01 1.19496e+00 246 2010 9 5.48283e+01 4.94194e-01 133 2010 10 4.61088e+01 2.41674e+00 685 2010 11 3.86283e+01 2.15824e+00 577 2010 12 3.41435e+01 4.78948e-01 810 2011 1 3.67198e+01 1.99032e+00 400 2011 2 4.29832e+01 2.21399e+00 586 2011 3 5.16410e+01 2.44198e+00 644 2011 4 5.82187e+01 1.36441e+00 476 2011 5 6.15792e+01 4.60869e-01 512 2011 6 6.25867e+01 9.45388e-02 410 2011 7 6.09915e+01 4.52359e-01 405 2011 8 5.88619e+01 9.85229e-01 219 2011 9 5.35245e+01 1.27398e+00 523 2011 10 4.66815e+01 1.33654e+00 240 2011 11 3.92226e+01 1.68772e+00 430 2011 12 3.39998e+01 4.76803e-01 847 2012 1 3.60693e+01 1.39400e+00 681 2012 2 4.46692e+01 1.43103e+00 384 2012 3 5.28365e+01 1.78410e+00 242 2012 4 5.76530e+01 1.28694e+00 524 2012 5 6.12261e+01 4.18412e-01 247 2012 6 6.25452e+01 8.78403e-02 282 2012 7 6.13762e+01 6.01995e-01 329 2012 8 5.88718e+01 1.08309e+00 315 2012 9 5.34797e+01 2.33248e+00 527 2012 10 4.45550e+01 2.44649e+00 358 2012 11 3.82178e+01 1.87965e+00 683 2012 12 3.40920e+01 4.48639e-01 409 2013 1 3.64518e+01 2.07516e+00 256 2013 2 4.35063e+01 2.15451e+00 683 2013 3 5.16451e+01 2.53387e+00 620 2013 4 5.77731e+01 1.11385e+00 309 2013 5 6.13722e+01 3.32411e-01 300 2013 6 6.27017e+01 6.03646e-02 68 2013 7 6.07666e+01 5.26163e-01 252 2013 8 5.96141e+01 8.47385e-01 162 2013 9 5.33896e+01 1.97355e+00 449 2013 10 4.63043e+01 1.98978e+00 393 2013 11 3.80454e+01 1.86109e+00 404 2013 12 3.43825e+01 4.94156e-01 278 2014 1 3.71404e+01 1.33433e+00 501 2014 2 4.37401e+01 2.15898e+00 596 2014 3 5.02358e+01 1.91448e+00 461 2014 4 5.87062e+01 1.26650e+00 581 2014 5 6.11239e+01 7.26252e-01 192 2014 6 6.24313e+01 2.63777e-01 530 2014 7 6.08156e+01 3.64010e-01 393 2014 8 5.92889e+01 8.52384e-01 574 2014 9 5.23835e+01 2.77388e+00 195 2014 10 4.52808e+01 2.43749e+00 604 2014 11 3.77659e+01 1.94751e+00 612 2014 12 3.38837e+01 2.90312e-01 342 2015 1 3.62844e+01 1.82577e+00 635 2015 2 4.42658e+01 2.15525e+00 719 2015 3 5.14938e+01 2.13257e+00 820 2015 4 5.77224e+01 3.66031e-01 195 2015 5 6.15169e+01 5.19517e-01 619 2015 6 6.24420e+01 8.89705e-02 523 2015 7 6.11209e+01 3.88137e-01 341 2015 8 5.90947e+01 9.49525e-01 711 2015 9 5.27865e+01 1.76791e+00 433 2015 10 4.59710e+01 1.52889e+00 368 2015 11 3.88521e+01 1.45072e+00 472 2015 12 3.39068e+01 4.26412e-01 448 2016 1 3.67785e+01 1.93424e+00 198 2016 2 4.52574e+01 2.02408e+00 447 2016 3 5.10833e+01 2.27191e+00 512 2016 4 5.76087e+01 1.32876e+00 513 2016 5 6.16084e+01 4.05915e-01 245 2016 6 6.23462e+01 5.57101e-02 383 2016 7 6.11453e+01 4.99922e-01 560 2016 8 5.91344e+01 1.08197e+00 311 2016 9 5.21524e+01 1.46086e+00 591 2016 10 4.62340e+01 1.69265e+00 491 2016 11 3.75819e+01 2.02007e+00 273 2016 12 3.40039e+01 3.34486e-01 240 2017 1 3.73297e+01 1.29288e+00 242 2017 2 4.41985e+01 1.99798e+00 528 2017 3 5.24316e+01 1.79274e+00 418 2017 4 5.86197e+01 1.21708e+00 261 2017 5 6.13355e+01 6.55652e-01 502 2017 6 6.24430e+01 1.28242e-01 397 2017 7 6.12068e+01 6.79659e-01 378 2017 8 5.92337e+01 8.05699e-01 329 2017 9 5.35334e+01 1.81727e+00 480 2017 10 4.48612e+01 2.31034e+00 381 2017 11 3.86792e+01 1.81957e+00 591 2017 12 3.37924e+01 1.78890e-01 695 2018 1 3.62180e+01 1.71432e+00 632 2018 2 4.33515e+01 1.91369e+00 520 2018 3 5.14637e+01 2.52998e+00 770 2018 4 5.77639e+01 1.39665e+00 512 2018 5 6.05821e+01 3.97555e-03 64 2018 6 6.20370e+01 1.28902e+00 79 2018 7 6.11912e+01 5.06384e-01 525 2018 8 5.87744e+01 1.15521e+00 457 2018 9 5.26134e+01 1.51853e+00 625 2018 10 4.56077e+01 2.27287e+00 439 2018 11 3.87613e+01 1.62077e+00 410 2018 12 3.40536e+01 4.78697e-01 630 2019 1 3.67638e+01 1.54862e+00 648 2019 2 4.35982e+01 2.77609e+00 812 2019 3 5.12609e+01 2.27404e+00 771 2019 4 5.82547e+01 1.51575e+00 633 2019 5 6.18194e+01 5.23457e-01 282 2019 6 6.24697e+01 1.35813e-01 443 2019 7 6.09367e+01 4.21439e-01 598 2019 8 5.88676e+01 9.90727e-01 516 2019 9 5.39996e+01 1.60314e+00 557 2019 10 4.53862e+01 2.11855e+00 718 2019 11 3.76914e+01 1.92920e+00 779 2019 12 3.41128e+01 5.23482e-01 389 2020 1 3.63253e+01 1.67766e+00 771 2020 2 4.44020e+01 2.64990e+00 322 2020 3 5.33489e+01 1.41935e+00 428 2020 4 5.80861e+01 1.65118e+00 395 2020 5 6.11669e+01 7.13439e-01 301 2020 6 6.24836e+01 7.69531e-02 320 2020 7 6.12965e+01 7.17827e-01 548 2020 8 5.84823e+01 1.02955e+00 521 2020 9 5.22453e+01 2.05887e+00 290 2020 10 4.56259e+01 2.72254e+00 431 2020 11 3.62560e+01 1.02595e+00 359 2020 12 3.39223e+01 3.25613e-01 655 2021 1 3.63952e+01 1.51204e+00 559 2021 2 4.43099e+01 2.22788e+00 499 2021 3 5.18012e+01 2.74329e+00 715 2021 4 5.85073e+01 1.17551e+00 358 2021 5 6.09462e+01 7.27247e-01 317 2021 6 6.25416e+01 5.14695e-02 151 2021 7 6.13400e+01 7.63483e-01 395 2021 8 5.88814e+01 1.28134e+00 350 2021 9 5.29716e+01 2.30720e+00 458 2021 10 4.56571e+01 2.74440e+00 424 2021 11 3.73714e+01 2.08875e+00 597 2021 12 3.40508e+01 4.58065e-01 748 2022 1 3.55223e+01 1.28673e+00 507 2022 2 4.42155e+01 2.59378e+00 583 2022 3 5.12802e+01 2.61675e+00 332 2022 4 5.91862e+01 7.58200e-01 155 2022 5 6.13107e+01 5.41900e-01 685 2022 6 6.24216e+01 1.09650e-01 384 2022 7 6.11582e+01 1.27933e+00 147 2022 8 5.87619e+01 1.10087e+00 632 2022 9 5.35715e+01 2.09365e+00 488 2022 10 4.58805e+01 2.87247e+00 522 2022 11 3.78808e+01 2.12241e+00 566 2022 12 3.39147e+01 3.96533e-01 511 2023 1 3.54006e+01 1.04600e+00 564 2023 2 4.42162e+01 2.77744e+00 642 2023 3 5.16683e+01 2.73766e+00 775 2023 4 5.74515e+01 1.50176e+00 495 2023 5 6.11777e+01 5.17742e-01 508 2023 6 6.24460e+01 1.27765e-01 625 2023 7 6.15699e+01 5.91500e-01 339 2023 8 5.94018e+01 9.21261e-01 320 2023 9 5.43801e+01 1.20930e+00 540 2023 10 4.50898e+01 2.70954e+00 399 2023 11 3.73532e+01 1.57340e+00 630 2023 12 3.38267e+01 2.50221e-01 212 2024 1 3.76159e+01 1.94030e+00 293 2024 2 4.37301e+01 2.21985e+00 446 2024 3 5.18796e+01 1.62331e+00 238 2024 4 nan nan 0