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 2.71186e+00 5.20869e-01 102 2002 8 2.15082e+00 6.73270e-01 409 2002 9 2.23463e+00 7.70699e-01 425 2002 10 2.21837e+00 8.52780e-01 797 2002 11 2.83461e+00 1.47196e+00 768 2002 12 2.04544e+00 1.16313e+00 704 2003 1 2.85231e+00 6.72078e-01 995 2003 2 2.25254e+00 6.51992e-01 512 2003 3 1.38933e+01 1.25769e+01 163 2003 4 2.71541e+01 8.46029e+00 106 2003 5 8.54915e+00 1.03551e+01 257 2003 6 6.55100e+00 5.57756e+00 273 2003 7 1.05344e+01 8.02667e+00 175 2003 8 8.28386e+00 5.05963e+00 272 2003 9 4.04822e+00 3.90536e+00 408 2003 10 4.40860e+00 1.90850e+00 960 2003 11 3.66335e+00 2.42255e+00 967 2003 12 2.41202e+00 1.02562e+00 896 2004 1 2.92370e+00 2.11110e+00 788 2004 2 2.17243e+00 5.29919e-01 448 2004 3 3.95920e+00 2.27707e+00 772 2004 4 2.01119e+00 7.53716e-01 468 2004 5 1.88036e+00 7.06959e-01 566 2004 6 2.98783e+00 2.65438e+00 416 2004 7 2.66408e+00 7.13962e-01 369 2004 8 2.47836e+00 7.23493e-01 425 2004 9 1.11315e+01 7.91742e+00 285 2004 10 2.21075e+01 1.28527e+01 155 2004 11 1.98696e+01 8.12353e+00 241 2004 12 1.42381e+01 9.40048e+00 556 2005 1 8.23405e+00 6.17914e+00 791 2005 2 6.00057e+00 2.38512e+00 635 2005 3 4.45534e+00 2.45587e+00 504 2005 4 1.09109e+01 6.96622e+00 510 2005 5 9.95869e+00 7.05604e+00 220 2005 6 7.45944e+00 5.02061e+00 400 2005 7 2.01955e+01 1.24846e+01 236 2005 8 1.48757e+01 1.09657e+01 209 2005 9 6.35301e+00 3.56573e+00 310 2005 10 3.81506e+00 3.56528e+00 848 2005 11 2.08165e+00 5.90947e-01 1001 2005 12 2.86246e+00 2.03766e+00 971 2006 1 9.13581e+00 8.34021e+00 634 2006 2 1.02530e+01 7.96032e+00 573 2006 3 7.23786e+00 4.92940e+00 1032 2006 4 2.90019e+00 2.92672e+00 332 2006 5 1.45522e+00 8.50200e-01 489 2006 6 1.86524e+00 6.73257e-01 406 2006 7 2.60565e+00 6.85560e-01 253 2006 8 2.79287e+00 9.88414e-01 279 2006 9 2.36691e+00 7.57254e-01 835 2006 10 1.97029e+00 6.64289e-01 825 2006 11 1.84213e+00 9.17842e-01 839 2006 12 9.38795e-01 3.04699e-01 576 2007 1 1.23052e+00 9.96928e-01 384 2007 2 1.12750e+00 7.53623e-01 758 2007 3 1.31083e+00 6.07582e-01 1086 2007 4 1.23240e+00 6.16989e-01 572 2007 5 1.45622e+00 6.34127e-01 166 2007 6 1.46728e+00 7.17883e-01 323 2007 7 1.85101e+00 8.69552e-01 320 2007 8 3.22812e+00 7.34896e-01 432 2007 9 3.54916e+00 7.44597e-01 547 2007 10 2.04590e+00 8.58808e-01 641 2007 11 1.59425e+00 1.44752e+00 970 2007 12 1.59975e+00 1.60819e+00 815 2008 1 1.56292e+00 1.30884e+00 640 2008 2 2.09506e+00 9.01667e-01 769 2008 3 9.47531e+00 8.00736e+00 773 2008 4 4.14799e+00 1.79022e+00 496 2008 5 4.85433e+00 2.01287e+00 491 2008 6 4.45483e+00 4.50855e+00 391 2008 7 2.51640e+00 1.07053e+00 429 2008 8 2.48747e+00 9.04887e-01 265 2008 9 1.07514e+01 1.11744e+01 507 2008 10 4.25000e+00 1.95097e+00 854 2008 11 1.65626e+00 8.88925e-01 1024 2008 12 5.30698e+00 3.53715e+00 900 2009 1 3.46181e+00 2.51842e+00 646 2009 2 2.48633e+00 1.30924e+00 960 2009 3 1.85481e+00 9.88099e-01 887 2009 4 7.21167e+00 9.58358e+00 454 2009 5 8.94204e+00 6.93206e+00 177 2009 6 2.17117e+00 8.25935e-01 189 2009 7 1.10014e+01 7.29580e+00 63 2009 8 6.24292e+00 2.91673e+00 512 2009 9 5.69598e+00 4.65304e+00 770 2009 10 2.63971e+00 1.31081e+00 757 2009 11 1.75136e+00 1.06335e+00 675 2009 12 1.81110e+00 1.07710e+00 198 2010 1 3.30398e+00 1.87972e+00 896 2010 2 5.56150e+00 2.18351e+00 704 2010 3 7.83730e+00 3.41417e+00 896 2010 4 1.80200e+01 1.30200e+01 224 2010 5 3.76298e+00 2.15407e+00 600 2010 6 3.93820e+00 2.90595e+00 576 2010 7 5.15246e+00 2.48284e+00 354 2010 8 3.58311e+00 7.84782e-01 150 2010 9 3.64992e+00 1.66002e+00 573 2010 10 1.92913e+00 7.02445e-01 1472 2010 11 1.61114e+00 8.77458e-01 1242 2010 12 1.86702e+00 1.24447e+00 986 2011 1 1.34962e+00 8.88613e-01 699 2011 2 1.01785e+00 5.84679e-01 769 2011 3 1.26026e+00 8.03440e-01 781 2011 4 1.44779e+00 8.90819e-01 903 2011 5 1.29263e+00 5.59871e-01 768 2011 6 1.29690e+00 2.35112e-01 256 2011 7 1.89798e+00 5.42959e-01 294 2011 8 1.76024e+00 7.28610e-01 528 2011 9 1.99483e+00 7.00746e-01 675 2011 10 1.65377e+00 1.00105e+00 899 2011 11 1.11212e+00 6.44110e-01 1116 2011 12 1.08105e+00 5.80071e-01 1024 2012 1 1.16768e+00 6.54336e-01 960 2012 2 1.28083e+00 8.06234e-01 293 2012 3 1.32197e+00 7.56774e-01 890 2012 4 1.08123e+00 6.93751e-01 898 2012 5 1.41146e+00 3.34059e-01 339 2012 6 2.46196e+00 5.79747e-01 192 2012 7 3.58278e+00 1.30250e+00 312 2012 8 1.55879e+01 9.28467e+00 351 2012 9 1.24972e+01 9.80300e+00 461 2012 10 7.31799e+00 3.46375e+00 540 2012 11 4.11499e+00 3.36007e+00 928 2012 12 4.87341e+00 3.05294e+00 620 2013 1 2.60536e+00 1.77459e+00 700 2013 2 2.16057e+00 6.58525e-01 576 2013 3 2.27670e+00 2.05784e+00 667 2013 4 1.05395e+01 7.82377e+00 389 2013 5 3.58869e+00 1.41803e+00 384 2013 6 1.00136e+01 6.06326e+00 374 2013 7 1.72626e+01 5.47959e+00 64 2013 8 1.70377e+01 1.02448e+01 57 2013 9 1.79554e+01 9.97741e+00 605 2013 10 5.70292e+00 3.20681e+00 901 2013 11 4.93756e+00 3.19183e+00 435 2013 12 2.55675e+00 1.51360e+00 641 2014 1 2.71816e+00 9.51904e-01 512 2014 2 4.56808e+00 4.51623e+00 704 2014 3 6.47485e+00 3.54072e+00 520 2014 4 1.53703e+01 1.18928e+01 139 2014 5 1.39649e+01 4.91563e+00 128 2014 6 1.86308e+01 1.22455e+01 238 2014 7 1.03304e+01 6.90338e+00 607 2014 8 3.55640e+00 1.10612e+00 334 2014 9 5.77969e+00 2.73637e+00 291 2014 10 5.17818e+00 4.30382e+00 1296 2014 11 1.75736e+00 8.12943e-01 1024 2014 12 1.90373e+00 1.85467e+00 538 2015 1 2.22559e+00 2.23958e+00 828 2015 2 1.82461e+00 7.51726e-01 768 2015 3 9.79357e+00 7.57439e+00 415 2015 4 6.39985e+00 3.74912e+00 84 2015 5 3.62069e+00 1.48496e+00 589 2015 6 3.28963e+00 1.24582e+00 319 2015 7 3.92211e+00 1.89202e+00 128 2015 8 6.51586e+00 2.76740e+00 415 2015 9 7.30038e+00 3.18524e+00 203 2015 10 2.68562e+00 1.44510e+00 841 2015 11 5.01360e+00 1.78468e+00 671 2015 12 2.28842e+00 1.27899e+00 465 2016 1 2.45206e+00 1.71607e+00 502 2016 2 4.55672e+00 3.12995e+00 1216 2016 3 4.35951e+00 2.71832e+00 704 2016 4 3.80192e+00 2.42069e+00 384 2016 5 3.18035e+00 1.49257e+00 700 2016 6 1.81809e+00 5.98460e-01 516 2016 7 2.68209e+00 1.31186e+00 762 2016 8 4.27807e+00 3.34545e+00 766 2016 9 5.89742e+00 3.68126e+00 799 2016 10 2.78282e+00 1.89162e+00 945 2016 11 1.09073e+00 4.86586e-01 925 2016 12 1.59317e+00 6.78637e-01 768 2017 1 1.75994e+00 1.50077e+00 576 2017 2 3.19875e+00 1.72232e+00 956 2017 3 2.53770e+00 1.78694e+00 856 2017 4 1.72767e+00 6.25575e-01 630 2017 5 1.65495e+00 5.36800e-01 450 2017 6 1.88660e+00 1.00614e+00 284 2017 7 3.90849e+00 8.53600e-01 109 2017 8 5.59986e+00 2.69841e+00 635 2017 9 7.57917e+00 8.87526e+00 600 2017 10 8.41885e+00 4.33748e+00 294 2017 11 4.05658e+00 5.12590e+00 1239 2017 12 2.05621e+00 1.03854e+00 684 2018 1 1.61263e+00 5.89651e-01 617 2018 2 3.34788e+00 2.37182e+00 576 2018 3 1.99624e+00 1.23323e+00 841 2018 4 2.08687e+00 6.81025e-01 567 2018 5 2.00119e+00 7.31779e-01 386 2018 6 2.75819e+00 8.56088e-01 256 2018 7 6.88938e+00 5.67638e+00 275 2018 8 1.07643e+01 8.94329e+00 301 2018 9 6.40887e+00 6.12745e+00 769 2018 10 3.85275e+00 2.45586e+00 1022 2018 11 3.48724e+00 1.51344e+00 298 2018 12 7.42311e+00 6.22723e+00 719 2019 1 1.49286e+01 1.06789e+01 433 2019 2 2.69993e+01 1.03965e+01 158 2019 3 6.71453e+00 6.06345e+00 605 2019 4 4.87758e+00 1.53982e+00 386 2019 5 2.53773e+00 8.43621e-01 750 2019 6 2.01336e+00 2.28485e-01 64 2019 7 2.51535e+00 1.54698e+00 258 2019 8 6.45502e+00 8.51118e+00 221 2019 9 2.85331e+00 1.31543e+00 692 2019 10 3.77660e+00 1.44014e+00 702 2019 11 1.68852e+00 8.38267e-01 896 2019 12 2.60645e+00 1.22698e+00 466 2020 1 2.08058e+00 9.61460e-01 612 2020 2 1.79663e+00 7.35972e-01 516 2020 3 2.86069e+00 3.44531e+00 566 2020 4 3.05878e+00 1.43187e+00 418 2020 5 3.34288e+00 4.03908e+00 887 2020 6 2.68458e+00 7.89738e-01 443 2020 7 2.69304e+00 8.40860e-01 297 2020 8 6.87820e+00 4.18699e+00 249 2020 9 5.01530e+00 1.68713e+00 275 2020 10 6.10452e+00 4.88119e+00 805 2020 11 4.83328e+00 3.89194e+00 944 2020 12 2.05206e+00 1.20571e+00 711 2021 1 3.90805e+00 1.59801e+00 428 2021 2 5.37342e+00 2.40526e+00 592 2021 3 5.18312e+00 4.66805e+00 501 2021 4 5.04503e+00 1.89669e+00 475 2021 5 4.26689e+00 3.25787e+00 645 2021 6 2.63490e+00 6.91200e-01 210 2021 7 5.10605e+00 3.23371e+00 116 2021 8 1.20052e+01 1.01164e+01 145 2021 9 2.23092e+01 1.08319e+01 294 2021 10 6.09600e+00 4.39689e+00 555 2021 11 3.27809e+00 1.03713e+00 960 2021 12 3.59734e+00 3.45896e+00 754 2022 1 4.09959e+00 2.45497e+00 920 2022 2 3.39619e+00 2.63082e+00 899 2022 3 3.16396e+00 2.34342e+00 878 2022 4 1.08077e+01 2.64605e+00 64 2022 5 6.26900e+00 6.98966e+00 309 2022 6 4.54336e+00 2.24071e+00 370 2022 7 5.07354e+00 4.43053e+00 383 2022 8 1.02595e+01 9.83382e+00 441 2022 9 7.57479e+00 6.86103e+00 384 2022 10 1.59906e+00 1.79167e+00 1183 2022 11 3.26174e+00 2.39091e+00 516 2022 12 2.24761e+00 1.14915e+00 870 2023 1 1.79012e+00 8.36191e-01 867 2023 2 1.65687e+00 5.97491e-01 576 2023 3 5.41402e+00 4.77655e+00 768 2023 4 4.41210e+00 1.51325e+00 384 2023 5 2.77573e+00 1.20924e+00 342 2023 6 1.64998e+00 8.60827e-01 208 2023 7 7.28368e+00 1.03813e+01 436 2023 8 8.24973e+00 8.89243e+00 317 2023 9 9.84194e+00 9.91443e+00 388 2023 10 3.08948e+00 1.62730e+00 594 2023 11 1.91193e+00 9.85807e-01 675 2023 12 3.44601e+00 1.52132e+00 272 2024 1 1.39296e+01 7.48742e+00 637 2024 2 9.91655e+00 7.72682e+00 654 2024 3 8.12436e+00 5.55335e+00 453 2024 4 nan nan 0