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 3.05268e+01 2.15337e+00 235 2002 8 2.21275e+01 3.26567e+00 307 2002 9 1.91632e+01 3.29828e+00 271 2002 10 1.40211e+01 2.74649e+00 819 2002 11 1.09036e+01 3.15230e+00 317 2002 12 6.64680e+00 8.33895e-01 248 2003 1 1.18028e+01 3.63214e+00 545 2003 2 1.36270e+01 2.44650e+00 768 2003 3 2.03511e+01 3.02606e+00 417 2003 4 1.62773e+01 5.94056e+00 512 2003 5 3.41360e+01 4.55046e+00 462 2003 6 3.17590e+01 8.87851e+00 353 2003 7 3.14460e+01 3.04309e+00 409 2003 8 2.80114e+01 4.68047e+00 336 2003 9 1.59011e+01 4.59073e-01 192 2003 10 1.02920e+01 5.41791e+00 736 2003 11 1.24422e+01 3.10080e+00 954 2003 12 6.03762e+00 2.29753e+00 347 2004 1 1.22432e+01 4.41530e+00 724 2004 2 1.58023e+01 3.52506e+00 707 2004 3 1.70853e+01 4.38537e+00 1088 2004 4 2.01292e+01 5.97040e+00 512 2004 5 1.56278e+01 7.79259e+00 832 2004 6 2.93564e+01 3.45873e+00 419 2004 7 3.26841e+01 4.36457e+00 249 2004 8 2.96929e+01 2.91040e+00 450 2004 9 1.26198e+01 9.21380e+00 423 2004 10 1.29645e+01 2.50997e+00 914 2004 11 1.19115e+01 3.01256e+00 843 2004 12 8.88676e+00 6.90462e+00 571 2005 1 1.05402e+01 3.12385e+00 684 2005 2 1.35420e+01 3.18442e+00 1024 2005 3 1.56313e+01 3.83113e+00 400 2005 4 2.03533e+01 4.74137e+00 561 2005 5 2.24631e+01 1.62264e+00 576 2005 6 3.03559e+01 3.59027e+00 307 2005 7 2.19711e+01 9.62454e+00 641 2005 8 2.11912e+01 9.42724e+00 592 2005 9 2.04108e+01 3.78012e+00 503 2005 10 1.24275e+01 4.07584e+00 269 2005 11 3.82184e+00 1.66976e+00 729 2005 12 5.02335e+00 1.95141e+00 585 2006 1 7.22370e+00 3.62668e+00 512 2006 2 1.60597e+01 6.03699e+00 468 2006 3 2.45539e+01 3.50572e+00 1041 2006 4 2.92608e+01 2.43460e+00 937 2006 5 3.00808e+01 4.07695e+00 544 2006 6 2.97240e+01 3.02090e+00 557 2006 7 3.31163e+01 4.57169e+00 384 2006 8 3.14079e+01 4.17729e+00 476 2006 9 1.64449e+01 5.06652e+00 268 2006 10 1.37632e+01 5.76597e+00 704 2006 11 1.27582e+01 4.67095e+00 558 2006 12 7.25858e+00 2.59876e+00 514 2007 1 8.08216e+00 3.54202e+00 719 2007 2 1.08247e+01 4.35690e+00 521 2007 3 2.20748e+01 4.24657e+00 859 2007 4 2.16416e+01 6.43132e+00 826 2007 5 2.86211e+01 5.94390e+00 890 2007 6 2.63446e+01 4.62173e+00 574 2007 7 3.12756e+01 3.13562e+00 695 2007 8 2.43062e+01 5.55843e+00 645 2007 9 1.77063e+01 3.53399e+00 355 2007 10 1.18596e+01 2.88490e+00 417 2007 11 1.02729e+01 2.29143e+00 744 2007 12 1.02670e+01 2.80227e+00 932 2008 1 1.19890e+01 4.30062e+00 539 2008 2 1.69209e+01 6.09068e+00 768 2008 3 1.12417e+01 5.67944e+00 768 2008 4 2.82196e+01 5.31727e+00 896 2008 5 2.98533e+01 3.11232e+00 520 2008 6 2.88983e+01 2.30243e+00 509 2008 7 2.29065e+01 2.19119e+00 381 2008 8 2.08304e+01 1.63223e+01 125 2008 9 1.64756e+01 4.69693e+00 153 2008 10 1.14997e+01 4.05284e+00 490 2008 11 1.23338e+01 3.21040e+00 1076 2008 12 9.89499e+00 2.87669e+00 668 2009 1 1.10594e+01 4.06004e+00 642 2009 2 1.51203e+01 4.52746e+00 1024 2009 3 1.85213e+01 7.32341e+00 761 2009 4 2.82082e+01 7.63638e+00 514 2009 5 3.06821e+01 4.78750e+00 568 2009 6 2.92713e+01 2.91643e+00 457 2009 7 3.37850e+01 4.73084e+00 287 2009 8 2.72993e+01 2.63481e+00 558 2009 9 2.51650e+01 6.14865e+00 546 2009 10 1.25987e+01 3.67240e+00 754 2009 11 9.75488e+00 2.51763e+00 553 2009 12 8.15102e+00 4.04232e+00 513 2010 1 1.27609e+01 5.27352e+00 374 2010 2 1.36460e+01 6.98351e+00 221 2010 3 1.43102e+01 3.28554e+00 619 2010 4 2.22869e+01 2.13779e+00 512 2010 5 3.61449e+01 3.38519e+00 759 2010 6 3.11779e+01 3.00078e+00 639 2010 7 2.97776e+01 2.08577e+00 323 2010 8 3.38853e+01 1.84000e+00 582 2010 9 2.49942e+01 4.60858e+00 336 2010 10 1.17312e+01 3.58935e+00 1111 2010 11 9.84138e+00 2.38069e+00 724 2010 12 1.22260e+01 3.27171e+00 192 2011 1 1.02963e+01 5.14850e+00 497 2011 2 1.57543e+01 4.23952e+00 1120 2011 3 2.31266e+01 3.89201e+00 1116 2011 4 3.20759e+01 2.39712e+00 811 2011 5 3.56838e+01 2.71540e+00 787 2011 6 3.19143e+01 2.84705e+00 640 2011 7 3.35864e+01 3.02218e+00 577 2011 8 3.17108e+01 4.25566e+00 476 2011 9 2.53358e+01 6.66197e+00 430 2011 10 1.23041e+01 1.16535e+00 180 2011 11 1.06332e+01 4.49670e+00 923 2011 12 1.26604e+01 3.39732e+00 1140 2012 1 1.33624e+01 4.91827e+00 891 2012 2 2.36133e+01 6.42314e+00 439 2012 3 2.27789e+01 4.51121e+00 1069 2012 4 2.27517e+01 4.02800e+00 704 2012 5 2.73001e+01 9.14626e+00 432 2012 6 3.00153e+01 3.04530e+00 386 2012 7 2.93639e+01 2.95050e+00 329 2012 8 2.98923e+01 3.25801e+00 498 2012 9 2.37272e+01 3.31563e+00 474 2012 10 1.73484e+01 8.50871e+00 600 2012 11 1.39561e+01 2.78998e+00 957 2012 12 1.38312e+01 3.95661e+00 538 2013 1 1.41711e+01 3.28316e+00 688 2013 2 1.29677e+01 6.02864e+00 547 2013 3 1.70350e+01 6.00168e+00 611 2013 4 2.70937e+01 3.76719e+00 657 2013 5 3.15469e+01 1.27426e+00 629 2013 6 3.20458e+01 3.14829e+00 514 2013 7 2.83048e+01 1.89463e+00 442 2013 8 2.94909e+01 5.96305e+00 563 2013 9 1.13028e+01 3.08711e+00 339 2013 10 1.75667e+01 3.00325e+00 934 2013 11 8.86200e+00 3.13149e+00 560 2013 12 5.32190e+00 2.43429e+00 624 2014 1 6.86738e+00 3.69640e+00 373 2014 2 1.28735e+01 3.48361e+00 882 2014 3 1.52212e+01 4.50277e+00 704 2014 4 2.56395e+01 4.01598e+00 576 2014 5 2.29161e+01 3.88673e+00 751 2014 6 2.69702e+01 3.98766e+00 356 2014 7 2.59929e+01 2.86329e+00 273 2014 8 2.24025e+01 3.99501e+00 514 2014 9 2.00333e+01 1.93975e+00 135 2014 10 2.00032e+01 4.03435e+00 804 2014 11 1.09515e+01 3.50168e+00 776 2014 12 1.41190e+01 2.25827e+00 928 2015 1 1.26427e+01 3.06559e+00 442 2015 2 1.20827e+01 3.03009e+00 741 2015 3 2.05415e+01 4.67068e+00 891 2015 4 2.60894e+01 2.35832e+00 630 2015 5 2.64988e+01 3.59854e+00 768 2015 6 2.65929e+01 3.52413e+00 407 2015 7 3.08225e+01 1.41116e+00 320 2015 8 1.88451e+01 4.85828e+00 499 2015 9 2.12126e+01 2.64830e+00 247 2015 10 1.15537e+01 1.88760e+00 676 2015 11 1.36389e+01 2.77838e+00 663 2015 12 1.65979e+01 4.91359e+00 581 2016 1 1.00286e+01 2.80184e+00 169 2016 2 9.65506e+00 4.64202e+00 165 2016 3 1.51267e+01 5.42108e+00 448 2016 4 2.55679e+01 3.64086e+00 562 2016 5 2.22128e+01 4.67205e+00 589 2016 6 2.94808e+01 4.07722e+00 659 2016 7 3.11625e+01 3.75482e+00 505 2016 8 2.27298e+01 4.23172e+00 630 2016 9 2.15540e+01 5.57252e+00 661 2016 10 1.09653e+01 4.65006e+00 963 2016 11 1.23836e+01 4.53689e+00 1216 2016 12 1.37516e+01 3.33624e+00 899 2017 1 1.55600e+01 4.11937e+00 585 2017 2 2.10800e+01 5.52856e+00 880 2017 3 2.39283e+01 4.37221e+00 960 2017 4 2.48592e+01 2.04667e+00 646 2017 5 2.57230e+01 3.09873e+00 796 2017 6 2.94015e+01 1.68941e+00 299 2017 7 2.81763e+01 4.41435e+00 324 2017 8 2.47440e+01 4.51746e+00 517 2017 9 1.24963e+01 8.08759e+00 321 2017 10 8.13879e+00 3.39852e+00 683 2017 11 6.49321e+00 2.13970e+00 1001 2017 12 7.14536e+00 3.84321e+00 960 2018 1 7.83898e+00 2.48314e+00 455 2018 2 2.05707e+01 3.32513e+00 1101 2018 3 2.36088e+01 3.73301e+00 1101 2018 4 2.48009e+01 3.00807e+00 1021 2018 5 2.25800e+01 2.14273e+00 320 2018 6 3.46080e+01 3.78376e+00 452 2018 7 2.89210e+01 2.79070e+00 749 2018 8 2.15548e+01 3.48808e+00 482 2018 9 1.19417e+01 7.88646e+00 630 2018 10 1.38900e+01 8.23630e+00 870 2018 11 1.83797e+01 8.59933e+00 468 2018 12 4.32269e+00 1.47646e+00 206 2019 1 4.45379e+00 2.84971e+00 543 2019 2 1.52400e+01 6.81432e+00 960 2019 3 2.94257e+01 4.51139e+00 900 2019 4 3.06219e+01 2.59149e+00 576 2019 5 3.09081e+01 6.86614e+00 772 2019 6 1.86140e+01 3.21481e+00 833 2019 7 2.79853e+01 6.09243e+00 371 2019 8 2.62939e+01 2.86198e+00 310 2019 9 1.09776e+01 4.72190e+00 500 2019 10 1.60087e+01 4.04209e+00 645 2019 11 9.05460e+00 2.98045e+00 815 2019 12 7.62510e+00 1.64597e+00 444 2020 1 7.87937e+00 3.05235e+00 832 2020 2 1.48451e+01 5.41515e+00 853 2020 3 2.38807e+01 3.69183e+00 1271 2020 4 2.64854e+01 2.18925e+00 512 2020 5 2.82576e+01 3.95534e+00 384 2020 6 3.00478e+01 1.58407e+00 416 2020 7 2.91346e+01 3.53332e+00 358 2020 8 3.04193e+01 4.73456e+00 643 2020 9 1.69899e+01 6.01368e+00 194 2020 10 1.17629e+01 2.55012e+00 278 2020 11 7.78852e+00 2.49972e+00 737 2020 12 1.01664e+01 2.27768e+00 556 2021 1 1.34994e+01 3.10383e+00 1083 2021 2 1.88277e+01 4.17600e+00 769 2021 3 2.43681e+01 4.77834e+00 1152 2021 4 2.35341e+01 6.34850e+00 768 2021 5 2.76154e+01 4.40062e+00 679 2021 6 3.05644e+01 4.10768e+00 340 2021 7 1.67039e+01 6.55414e+00 406 2021 8 2.54031e+01 3.73204e+00 344 2021 9 1.61094e+01 4.33819e+00 584 2021 10 1.30652e+01 2.10154e+00 384 2021 11 3.35150e+00 3.57452e+00 753 2021 12 8.34826e+00 6.60674e+00 983 2022 1 1.24019e+01 4.08041e+00 384 2022 2 1.61566e+01 4.05920e+00 834 2022 3 2.13450e+01 9.60563e+00 767 2022 4 2.98024e+01 5.65904e+00 310 2022 5 3.13205e+01 6.62217e+00 583 2022 6 2.77557e+01 5.44511e+00 574 2022 7 3.04004e+01 5.01784e+00 168 2022 8 2.66239e+01 4.14965e+00 477 2022 9 2.21080e+01 2.68927e+00 510 2022 10 4.86806e+00 2.15107e+00 253 2022 11 7.65833e+00 2.52191e+00 458 2022 12 5.57483e+00 5.15815e-01 483 2023 1 1.12436e+01 2.71642e+00 152 2023 2 1.50888e+01 8.74475e+00 1127 2023 3 2.86078e+01 7.80191e+00 982 2023 4 2.90362e+01 8.49207e+00 318 2023 5 2.53711e+01 9.32777e+00 550 2023 6 3.54813e+01 2.20794e+00 309 2023 7 2.73174e+01 8.78328e+00 298 2023 8 2.22620e+01 9.55853e+00 502 2023 9 2.22440e+01 8.74072e+00 504 2023 10 1.13201e+01 3.35041e+00 607 2023 11 1.66307e+01 4.41284e+00 549 2023 12 1.26839e+01 7.41917e+00 549 2024 1 1.80045e+01 6.91953e+00 303 2024 2 1.42700e+01 4.63062e+00 814 2024 3 2.80483e+01 5.38377e+00 743 2024 4 nan nan 0