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 1.15925e+01 5.20533e+00 236 2002 8 5.39127e+00 3.90672e+00 417 2002 9 1.22471e+01 9.96594e+00 511 2002 10 4.19861e+00 1.93754e+00 702 2002 11 6.37338e+00 1.21512e+01 437 2002 12 2.58340e+00 6.08042e-01 640 2003 1 1.58358e+00 3.04398e-01 777 2003 2 2.36581e+00 7.17664e-01 630 2003 3 3.54783e+00 1.55795e+00 608 2003 4 8.49323e+00 3.93154e+00 470 2003 5 5.56087e+00 2.20426e+00 270 2003 6 1.63747e+01 1.89952e+01 272 2003 7 1.62219e+01 1.93171e+01 565 2003 8 8.45063e+00 2.53024e+00 208 2003 9 7.50960e+00 7.62625e+00 603 2003 10 8.08894e+00 4.06933e+00 518 2003 11 9.37115e+00 1.32019e+01 503 2003 12 3.38723e+00 8.64738e-01 615 2004 1 1.32075e+00 4.15102e-01 878 2004 2 1.70298e+00 4.17964e-01 729 2004 3 2.91328e+00 1.28496e+00 572 2004 4 2.26488e+01 1.89660e+01 293 2004 5 6.30550e+00 7.34067e+00 144 2004 6 9.37681e+00 9.00015e+00 342 2004 7 3.87311e+00 1.27605e-01 64 2004 8 8.89287e+00 8.49726e+00 506 2004 9 9.25852e+00 1.08769e+01 472 2004 10 6.41048e+00 7.18782e+00 553 2004 11 3.02698e+00 8.31152e-01 841 2004 12 2.31187e+00 5.37004e-01 366 2005 1 2.68370e+00 6.08916e-01 581 2005 2 2.46730e+00 4.70132e-01 507 2005 3 3.64559e+00 1.62186e+00 665 2005 4 1.25142e+01 7.87094e+00 720 2005 5 1.09080e+01 4.75748e+00 303 2005 6 1.85234e+01 1.96196e+01 299 2005 7 2.03073e+01 1.72316e+01 326 2005 8 5.95518e+00 1.77391e+00 326 2005 9 1.33858e+01 1.55331e+01 701 2005 10 1.37144e+01 2.17537e+01 347 2005 11 6.25810e+00 5.76957e+00 557 2005 12 2.59047e+00 5.15564e-01 722 2006 1 2.16711e+00 6.62400e-01 682 2006 2 2.13807e+00 3.84257e-01 612 2006 3 2.42746e+00 6.15522e-01 620 2006 4 4.02389e+00 2.91280e+00 479 2006 5 7.20538e+00 6.91927e+00 130 2006 6 7.77227e+00 6.81608e-01 133 2006 7 5.63348e+01 1.24468e+01 77 2006 8 1.11389e+01 1.55252e+01 502 2006 9 2.01373e+01 1.31525e+01 501 2006 10 4.66959e+00 1.40500e+00 651 2006 11 3.62792e+00 1.66217e+00 288 2006 12 3.34767e+00 1.08341e+00 570 2007 1 2.46150e+00 7.73960e-01 529 2007 2 1.59091e+00 5.72299e-01 645 2007 3 4.59302e+00 7.38390e+00 646 2007 4 8.42065e+00 2.17512e+00 320 2007 5 1.78236e+01 1.61743e+01 397 2007 6 3.04812e+01 3.25428e+01 120 2007 7 7.35705e+00 7.31947e+00 376 2007 8 1.00251e+01 6.79502e+00 423 2007 9 1.13151e+01 7.88412e+00 685 2007 10 9.84896e+00 3.47572e+00 471 2007 11 3.85391e+00 8.65112e-01 540 2007 12 2.41328e+00 1.05974e+00 352 2008 1 2.17666e+00 6.93887e-01 537 2008 2 1.88649e+00 3.49657e-01 430 2008 3 3.64406e+00 2.17621e+00 598 2008 4 1.59943e+01 1.53509e+01 703 2008 5 1.94292e+01 1.91601e+01 164 2008 6 5.31124e+00 2.47987e+00 284 2008 7 6.99414e+00 2.33286e+00 197 2008 8 1.66854e+01 2.03050e+01 649 2008 9 1.03613e+01 1.43958e+01 726 2008 10 7.47613e+00 1.05609e+01 650 2008 11 3.71837e+00 1.17828e+00 545 2008 12 2.46201e+00 8.50572e-01 445 2009 1 1.18079e+00 4.11616e-01 950 2009 2 1.19696e+00 3.76679e-01 641 2009 3 3.58586e+00 6.13919e+00 701 2009 4 2.43842e+01 2.06139e+01 421 2009 5 7.91360e+00 2.96123e+00 180 2009 6 5.31837e+00 2.51174e+00 178 2009 7 1.33102e+01 1.76378e+01 315 2009 8 1.36332e+01 1.58941e+01 349 2009 9 1.13961e+01 8.93399e+00 463 2009 10 2.98231e+00 1.27378e+00 487 2009 11 3.98841e+00 2.52255e+00 514 2009 12 3.52832e+00 2.32386e+00 512 2010 1 1.93130e+00 5.57269e-01 723 2010 2 2.15817e+00 3.70300e-01 446 2010 3 4.33846e+00 2.05439e+00 622 2010 4 1.05664e+01 7.06706e+00 489 2010 5 1.19978e+01 1.35618e+01 562 2010 6 9.79743e+00 1.02742e+01 343 2010 7 6.23439e+00 4.58041e+00 459 2010 8 9.82719e+00 9.69340e+00 516 2010 9 7.28423e+00 3.97556e+00 645 2010 10 7.07367e+00 5.87648e+00 694 2010 11 4.07744e+00 1.01967e+00 528 2010 12 3.03959e+00 5.26165e-01 411 2011 1 2.28048e+00 5.08036e-01 457 2011 2 1.53087e+00 1.92970e-01 530 2011 3 3.76159e+00 1.63773e+00 608 2011 4 9.22016e+00 5.14479e+00 260 2011 5 1.33143e+01 4.14426e+00 207 2011 6 2.03117e+01 3.05374e+01 157 2011 7 1.32443e+01 1.28000e+01 425 2011 8 4.67550e+00 3.52398e+00 632 2011 9 6.42823e+00 3.84707e+00 417 2011 10 5.77622e+00 2.41804e+00 381 2011 11 9.67151e+00 8.18871e+00 587 2011 12 3.95088e+00 1.28193e+00 531 2012 1 2.21680e+00 1.13788e+00 519 2012 2 2.10344e+00 3.20832e-01 703 2012 3 4.55534e+00 4.18162e+00 715 2012 4 4.93833e+00 7.52860e+00 345 2012 5 8.08836e+00 5.23187e+00 320 2012 6 1.48610e+01 1.36303e+01 450 2012 7 6.99363e+00 3.27596e+00 687 2012 8 8.79175e+00 5.41373e+00 565 2012 9 1.24273e+01 1.32525e+01 793 2012 10 1.17488e+01 1.58634e+01 424 2012 11 3.64750e+00 6.30462e-01 618 2012 12 2.61447e+00 5.00498e-01 297 2013 1 2.29848e+00 2.60146e-01 554 2013 2 2.01698e+00 4.33042e-01 582 2013 3 2.74244e+00 4.12449e-01 230 2013 4 4.00214e+00 1.42012e+00 790 2013 5 4.13541e+00 9.06374e-01 263 2013 6 1.62574e+01 1.36376e+01 320 2013 7 6.95244e+00 4.25190e+00 244 2013 8 1.20654e+01 1.04401e+01 416 2013 9 1.14323e+01 1.64078e+01 1209 2013 10 6.15173e+00 9.79586e+00 469 2013 11 7.37986e+00 6.93055e+00 884 2013 12 2.34712e+00 5.30743e-01 535 2014 1 2.39246e+00 5.65377e-01 509 2014 2 2.11885e+00 6.23279e-01 441 2014 3 2.20933e+00 6.38476e-01 450 2014 4 5.61791e+00 1.18990e+01 464 2014 5 1.30120e+01 1.18908e+01 351 2014 6 7.08632e+00 4.65220e+00 469 2014 7 1.03868e+01 1.83565e+01 240 2014 8 7.21161e+00 5.59355e+00 756 2014 9 1.02927e+01 7.82456e+00 768 2014 10 5.14727e+00 3.45757e+00 512 2014 11 3.34432e+00 8.25994e-01 365 2014 12 3.07142e+00 1.24414e+00 246 2015 1 2.08972e+00 4.80263e-01 564 2015 2 2.36021e+00 6.71226e-01 320 2015 3 2.19249e+00 9.76007e-01 749 2015 4 2.35607e+00 8.24612e-01 533 2015 5 1.26623e+01 1.38576e+01 325 2015 6 3.64171e+00 1.22997e+00 319 2015 7 1.03000e+01 4.11853e+00 180 2015 8 6.05223e+00 2.93155e+00 512 2015 9 6.92145e+00 5.26035e+00 843 2015 10 5.63510e+00 3.99654e+00 650 2015 11 4.25807e+00 1.21002e+00 823 2015 12 3.58857e+00 8.94477e-01 465 2016 1 2.66437e+00 7.90893e-01 549 2016 2 2.71128e+00 6.03147e-01 576 2016 3 2.46331e+00 5.84988e-01 569 2016 4 3.77356e+00 1.34380e+00 612 2016 5 5.11708e+00 1.03199e+00 256 2016 6 1.14032e+01 1.99895e+01 390 2016 7 5.00948e+00 2.33752e+00 355 2016 8 7.68909e+00 8.65742e+00 896 2016 9 1.97322e+01 2.30477e+01 489 2016 10 5.97484e+00 7.85303e+00 536 2016 11 7.77121e+00 6.53355e+00 808 2016 12 1.30086e+01 1.18106e+01 575 2017 1 2.93341e+00 1.06081e+00 566 2017 2 2.33646e+00 1.01977e+00 435 2017 3 2.24939e+00 5.85218e-01 809 2017 4 4.70617e+00 3.51989e+00 538 2017 5 2.28316e+01 2.59811e+01 245 2017 6 6.95213e+00 2.28004e+00 149 2017 7 8.16100e+00 1.09449e+01 399 2017 8 1.23413e+01 8.65543e+00 572 2017 9 1.69527e+01 1.84251e+01 522 2017 10 1.10488e+01 5.76105e+00 764 2017 11 5.55202e+00 3.01398e+00 687 2017 12 2.01320e+00 3.01735e-01 475 2018 1 1.84828e+00 4.86085e-01 634 2018 2 2.24017e+00 5.67401e-01 384 2018 3 2.71059e+00 7.79436e-01 407 2018 4 4.12532e+00 2.60571e+00 576 2018 5 1.28101e+01 8.96664e+00 330 2018 6 6.17910e+00 3.27627e+00 423 2018 7 9.07278e+00 1.16034e+01 600 2018 8 1.60061e+01 1.70099e+01 524 2018 9 7.59954e+00 6.87264e+00 288 2018 10 6.18921e+00 4.34973e+00 537 2018 11 3.51210e+00 8.80233e-01 618 2018 12 2.72874e+00 6.31434e-01 982 2019 1 1.92342e+00 9.82792e-01 638 2019 2 1.84916e+00 5.72863e-01 465 2019 3 1.66439e+00 7.93953e-01 628 2019 4 4.21899e+00 1.78354e+00 338 2019 5 8.65060e+00 3.61596e+00 197 2019 6 1.24342e+01 1.38247e+01 355 2019 7 1.12669e+01 8.24518e+00 477 2019 8 1.83171e+01 2.31010e+01 377 2019 9 1.54548e+01 1.22297e+01 707 2019 10 7.82478e+00 2.97662e+00 293 2019 11 5.27253e+00 3.77476e+00 673 2019 12 2.31225e+00 9.54575e-01 516 2020 1 2.31236e+00 8.73056e-01 672 2020 2 2.59337e+00 1.06095e+00 581 2020 3 2.93179e+00 5.59320e-01 620 2020 4 9.98693e+00 7.76663e+00 272 2020 5 9.56009e+00 1.26360e+01 584 2020 6 6.45661e+00 3.44695e+00 309 2020 7 5.37473e+00 2.86349e+00 537 2020 8 5.54421e+00 8.95824e-01 192 2020 9 1.49574e+01 1.42724e+01 592 2020 10 7.48678e+00 8.73083e+00 594 2020 11 5.39540e+00 4.70424e+00 415 2020 12 3.34297e+00 6.46875e-01 304 2021 1 3.10100e+00 6.29159e-01 537 2021 2 2.19757e+00 4.58941e-01 355 2021 3 4.16622e+00 3.74509e+00 1036 2021 4 2.57937e+00 7.68608e-01 518 2021 5 8.27570e+00 4.35317e+00 410 2021 6 9.99530e+00 8.50876e+00 303 2021 7 2.05965e+01 2.31447e+01 156 2021 8 2.23187e+01 2.14988e+01 242 2021 9 1.55431e+01 1.98851e+01 431 2021 10 1.11004e+01 1.07967e+01 607 2021 11 6.58315e+00 6.13019e+00 867 2021 12 5.42793e+00 2.29532e+00 256 2022 1 2.59638e+00 9.54236e-01 490 2022 2 2.15388e+00 7.05018e-01 795 2022 3 2.68813e+00 1.24603e+00 568 2022 4 4.84827e+00 1.06235e+00 255 2022 5 9.18556e+00 4.25286e+00 256 2022 6 7.78513e+00 1.12650e+01 447 2022 7 4.66025e+00 2.06261e+00 625 2022 8 4.98045e+00 1.72398e+00 672 2022 9 2.05709e+01 1.92171e+01 442 2022 10 7.72512e+00 8.97429e+00 943 2022 11 3.07298e+00 1.25205e+00 943 2022 12 3.23404e+00 9.61140e-01 575 2023 1 4.56164e+00 2.26261e+00 315 2023 2 1.93648e+00 6.14310e-01 396 2023 3 2.88294e+00 8.29317e-01 485 2023 4 4.72039e+00 3.47651e+00 506 2023 5 1.52692e+01 1.22258e+01 394 2023 6 3.85481e+00 2.91453e+00 346 2023 7 5.80807e+00 3.10041e+00 396 2023 8 7.90694e+00 4.18212e+00 622 2023 9 9.26932e+00 9.17654e+00 486 2023 10 6.56327e+00 5.10971e+00 630 2023 11 5.80631e+00 2.56450e+00 621 2023 12 4.68000e+00 1.45524e+00 384 2024 1 3.80474e+00 2.51780e+00 464 2024 2 5.32705e+00 6.65342e+00 882 2024 3 3.78309e+00 6.85973e-01 520 2024 4 nan nan 0