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 1.47917e+00 5.26281e-01 135 2002 8 1.95098e+00 1.63753e+00 295 2002 9 1.88510e+00 1.15152e+00 228 2002 10 1.91583e+00 7.17829e-01 680 2002 11 2.95702e+00 1.50776e+00 964 2002 12 3.41236e+00 1.40853e+00 631 2003 1 6.37813e+00 3.04941e+00 924 2003 2 4.96964e+00 2.84443e+00 620 2003 3 1.79731e+01 8.84996e+00 235 2003 4 1.49714e+01 7.84067e+00 239 2003 5 8.56381e+00 5.25912e+00 53 2003 6 4.69161e+00 3.28201e+00 250 2003 7 9.24669e+00 5.58273e+00 64 2003 8 1.27152e+01 9.25725e+00 124 2003 9 4.05065e+00 2.32754e+00 294 2003 10 3.70399e+00 1.68256e+00 608 2003 11 2.79580e+00 1.68486e+00 986 2003 12 6.48200e+00 4.72956e+00 771 2004 1 5.33771e+00 3.40421e+00 637 2004 2 3.65522e+00 1.41740e+00 185 2004 3 6.68441e+00 5.10386e+00 822 2004 4 6.47410e+00 3.21749e+00 466 2004 5 2.75417e+00 1.16431e+00 513 2004 6 2.42614e+00 6.78389e-01 194 2004 7 2.80126e+00 7.86440e-01 370 2004 8 3.15967e+00 3.73005e+00 304 2004 9 6.91649e+00 3.09138e+00 97 2004 10 1.13091e+01 7.28158e+00 141 2004 11 1.34660e+01 9.06271e+00 402 2004 12 1.10994e+01 6.04529e+00 486 2005 1 8.10606e+00 4.44615e+00 632 2005 2 5.93374e+00 3.04336e+00 516 2005 3 6.61960e+00 4.23344e+00 480 2005 4 9.14921e+00 3.99261e+00 287 2005 5 7.34745e+00 4.74695e+00 208 2005 6 8.69831e+00 4.70161e+00 301 2005 7 1.90426e+01 1.26955e+01 119 2005 8 1.61606e+01 7.80235e+00 163 2005 9 5.18156e+00 1.44802e+00 267 2005 10 5.37495e+00 3.46351e+00 890 2005 11 3.69967e+00 1.30201e+00 849 2005 12 5.60804e+00 3.14486e+00 882 2006 1 7.59448e+00 5.19090e+00 596 2006 2 7.03746e+00 2.91562e+00 451 2006 3 8.57311e+00 4.01950e+00 987 2006 4 4.12561e+00 1.44532e+00 330 2006 5 2.75102e+00 1.58825e+00 453 2006 6 2.05813e+00 1.26406e+00 222 2006 7 1.76127e+00 6.68125e-01 365 2006 8 2.45500e+00 1.46083e+00 228 2006 9 2.81227e+00 9.79003e-01 560 2006 10 3.18369e+00 2.25812e+00 702 2006 11 3.36683e+00 2.66240e+00 822 2006 12 1.96078e+00 2.10086e+00 443 2007 1 2.91989e+00 1.49676e+00 483 2007 2 3.35534e+00 2.95509e+00 735 2007 3 2.10682e+00 1.45646e+00 1130 2007 4 1.95940e+00 8.44166e-01 604 2007 5 1.71890e+00 1.83747e+00 105 2007 6 1.95627e+00 3.88106e-01 93 2007 7 1.80479e+00 8.16774e-01 330 2007 8 3.31555e+00 8.74352e-01 384 2007 9 1.59612e+00 6.35670e-01 232 2007 10 1.97988e+00 1.03336e+00 530 2007 11 1.51734e+00 6.88369e-01 1034 2007 12 2.70807e+00 3.80543e+00 679 2008 1 3.50381e+00 1.95166e+00 789 2008 2 2.33418e+00 1.69741e+00 1065 2008 3 3.07620e+00 1.60869e+00 724 2008 4 5.59595e+00 2.83207e+00 492 2008 5 3.66780e+00 1.71856e+00 427 2008 6 2.21087e+00 1.20251e+00 242 2008 7 1.72449e+00 5.49501e-01 242 2008 8 2.47859e+00 1.19253e+00 125 2008 9 5.89089e+00 5.20544e+00 439 2008 10 3.04568e+00 1.97891e+00 756 2008 11 3.06721e+00 1.67552e+00 823 2008 12 4.45905e+00 1.95429e+00 803 2009 1 4.68441e+00 3.25391e+00 556 2009 2 3.60070e+00 1.49788e+00 1004 2009 3 2.92568e+00 2.03579e+00 869 2009 4 3.17224e+00 1.62378e+00 551 2009 5 8.47646e+00 5.73376e+00 173 2009 6 2.82253e+00 1.30887e+00 175 2009 7 2.37692e+00 1.05417e+00 128 2009 8 3.82043e+00 1.73977e+00 349 2009 9 2.99261e+00 1.63376e+00 301 2009 10 2.32458e+00 1.44698e+00 781 2009 11 1.83497e+00 1.14582e+00 565 2009 12 2.76693e+00 1.53131e+00 232 2010 1 5.59085e+00 2.32534e+00 715 2010 2 1.62794e+01 1.11592e+01 574 2010 3 1.50029e+01 8.40617e+00 536 2010 4 9.38730e+00 5.80751e+00 469 2010 5 6.47497e+00 2.09914e+00 256 2010 6 3.14375e+00 1.58376e+00 378 2010 7 6.69687e+00 7.57406e+00 268 2010 8 2.86455e+00 1.05844e+00 108 2010 9 1.91340e+00 8.62330e-01 519 2010 10 1.93816e+00 9.92500e-01 1358 2010 11 1.56836e+00 8.89126e-01 1109 2010 12 3.06110e+00 2.38609e+00 919 2011 1 3.06187e+00 2.04224e+00 759 2011 2 2.13274e+00 1.99577e+00 607 2011 3 3.10147e+00 2.39279e+00 876 2011 4 2.61264e+00 8.54382e-01 640 2011 5 1.33352e+00 5.35101e-01 463 2011 6 8.99164e-01 6.12783e-01 148 2011 7 1.64912e+00 6.30025e-01 282 2011 8 1.37069e+00 9.83618e-01 470 2011 9 1.15103e+00 5.47578e-01 510 2011 10 1.87868e+00 1.15707e+00 1020 2011 11 1.81194e+00 9.69321e-01 936 2011 12 2.09082e+00 1.39786e+00 780 2012 1 3.11025e+00 2.41005e+00 1073 2012 2 2.93363e+00 1.94276e+00 253 2012 3 1.66071e+00 2.25316e+00 849 2012 4 1.27493e+00 1.58512e+00 702 2012 5 1.14459e+00 5.36100e-01 410 2012 6 1.95431e+00 8.64574e-01 125 2012 7 5.36623e+00 2.78057e+00 73 2012 8 1.19737e+01 1.86626e+00 64 2012 9 1.30612e+01 1.00653e+01 228 2012 10 1.00214e+01 5.42500e+00 668 2012 11 7.30831e+00 3.60181e+00 904 2012 12 5.51428e+00 2.73704e+00 422 2013 1 3.50260e+00 1.89096e+00 478 2013 2 4.40915e+00 1.83250e+00 578 2013 3 4.67458e+00 1.63134e+00 753 2013 4 4.23368e+00 1.60986e+00 453 2013 5 2.98012e+00 1.26618e+00 454 2013 6 4.76220e+00 5.98184e+00 363 2013 7 1.01858e+01 9.25708e+00 165 2013 8 3.27513e+01 9.09330e+00 47 2013 9 1.68066e+01 1.05818e+01 552 2013 10 7.07548e+00 3.53137e+00 761 2013 11 4.97815e+00 3.48980e+00 566 2013 12 3.65004e+00 2.37242e+00 736 2014 1 5.18364e+00 2.31797e+00 544 2014 2 4.90156e+00 2.68607e+00 722 2014 3 7.69256e+00 5.72947e+00 747 2014 4 1.59899e+01 1.27663e+01 220 2014 5 1.62041e+01 8.31134e+00 128 2014 6 1.70125e+01 1.37504e+01 140 2014 7 5.57066e+00 1.58602e+00 513 2014 8 3.73620e+00 1.25048e+00 261 2014 9 4.17261e+00 1.96107e+00 232 2014 10 3.59869e+00 1.46850e+00 1305 2014 11 4.69642e+00 3.03325e+00 866 2014 12 2.43703e+00 1.72138e+00 747 2015 1 3.12699e+00 2.29892e+00 659 2015 2 5.46376e+00 3.17259e+00 729 2015 3 6.30401e+00 5.24278e+00 526 2015 4 4.72432e+00 1.04903e+00 133 2015 5 4.29438e+00 2.96250e+00 483 2015 6 3.44518e+00 1.30059e+00 529 2015 7 4.09735e+00 9.72304e-01 113 2015 8 1.18491e+01 9.00999e+00 182 2015 9 6.96232e+00 3.26761e+00 358 2015 10 3.05535e+00 9.46905e-01 527 2015 11 4.12114e+00 1.57211e+00 515 2015 12 2.58399e+00 1.59191e+00 583 2016 1 4.93323e+00 2.74695e+00 516 2016 2 6.17086e+00 4.28844e+00 1035 2016 3 5.78560e+00 3.07255e+00 811 2016 4 3.66348e+00 1.27936e+00 419 2016 5 3.65093e+00 1.53584e+00 437 2016 6 2.58507e+00 7.67170e-01 434 2016 7 3.40175e+00 2.05931e+00 660 2016 8 1.39349e+01 1.30552e+01 340 2016 9 1.46585e+01 9.77377e+00 482 2016 10 4.69224e+00 2.70095e+00 544 2016 11 2.17756e+00 9.90582e-01 926 2016 12 2.53654e+00 1.30262e+00 740 2017 1 3.84604e+00 2.87341e+00 623 2017 2 3.48241e+00 1.61671e+00 917 2017 3 2.52308e+00 1.25881e+00 747 2017 4 3.58892e+00 2.17456e+00 667 2017 5 2.68563e+00 1.13905e+00 426 2017 6 3.61166e+00 1.94043e+00 170 2017 7 4.31247e+00 2.86904e+00 119 2017 8 6.37669e+00 5.10591e+00 412 2017 9 8.20432e+00 7.38096e+00 314 2017 10 6.66615e+00 3.74728e+00 733 2017 11 3.10461e+00 1.55512e+00 1039 2017 12 2.26567e+00 8.77892e-01 659 2018 1 2.68244e+00 1.46280e+00 856 2018 2 3.09357e+00 8.40303e-01 448 2018 3 3.55716e+00 1.87125e+00 708 2018 4 3.41554e+00 1.96455e+00 526 2018 5 3.69429e+00 1.94573e+00 343 2018 6 5.05307e+00 1.86230e+00 374 2018 7 5.75931e+00 6.74162e+00 104 2018 8 1.27566e+01 9.49261e+00 209 2018 9 7.88748e+00 4.38033e+00 773 2018 10 4.50900e+00 1.72063e+00 917 2018 11 8.06985e+00 6.49196e+00 236 2018 12 8.04417e+00 7.61105e+00 436 2019 1 8.82395e+00 3.98746e+00 352 2019 2 1.24194e+01 5.14816e+00 203 2019 3 1.04225e+01 5.99228e+00 742 2019 4 6.63001e+00 4.57748e+00 384 2019 5 3.01012e+00 7.52251e-01 627 2019 6 7.00439e+00 1.14728e+00 122 2019 7 4.01947e+00 1.55555e+00 324 2019 8 3.52414e+00 1.88446e+00 325 2019 9 3.35905e+00 2.00339e+00 444 2019 10 2.93164e+00 9.41716e-01 510 2019 11 2.02010e+00 9.84644e-01 694 2019 12 5.13183e+00 3.18126e+00 506 2020 1 3.54840e+00 1.42283e+00 579 2020 2 4.03614e+00 2.92211e+00 523 2020 3 2.84436e+00 1.42865e+00 557 2020 4 2.87066e+00 1.05247e+00 484 2020 5 1.56574e+00 6.76120e-01 587 2020 6 2.95229e+00 1.95919e+00 353 2020 7 5.41258e+00 2.81491e+00 210 2020 8 3.99588e+00 1.47221e+00 256 2020 9 5.15965e+00 2.40721e+00 159 2020 10 6.91812e+00 4.79523e+00 370 2020 11 4.42134e+00 3.16328e+00 680 2020 12 3.17740e+00 1.91345e+00 703 2021 1 4.92889e+00 3.73844e+00 514 2021 2 6.24242e+00 4.08526e+00 496 2021 3 4.67188e+00 3.17353e+00 517 2021 4 5.03278e+00 1.78327e+00 527 2021 5 4.07557e+00 1.99608e+00 430 2021 6 2.61828e+00 8.26342e-01 200 2021 7 5.79657e+00 4.85627e+00 42 2021 8 5.52583e+00 2.06885e+00 64 2021 9 1.77220e+01 1.04359e+01 448 2021 10 8.05425e+00 6.57116e+00 492 2021 11 5.66381e+00 2.31210e+00 1013 2021 12 4.16365e+00 1.51182e+00 700 2022 1 5.82443e+00 3.65175e+00 640 2022 2 3.51494e+00 2.08132e+00 815 2022 3 6.32111e+00 5.86473e+00 704 2022 4 1.03974e+01 9.25113e+00 94 2022 5 5.12901e+00 1.62588e+00 419 2022 6 3.82035e+00 1.77496e+00 279 2022 7 2.51596e+00 1.34602e+00 203 2022 8 4.01170e+00 2.15107e+00 553 2022 9 3.15884e+00 1.04981e+00 249 2022 10 2.69926e+00 2.45072e+00 1249 2022 11 3.11545e+00 1.97292e+00 387 2022 12 2.44191e+00 2.12057e+00 1006 2023 1 3.01554e+00 1.63515e+00 712 2023 2 3.29304e+00 1.43352e+00 561 2023 3 3.93495e+00 1.51868e+00 766 2023 4 2.97272e+00 1.37194e+00 366 2023 5 3.69623e+00 2.18875e+00 333 2023 6 2.67224e+00 1.92621e+00 192 2023 7 1.30115e+01 9.92361e+00 244 2023 8 6.14028e+00 3.22519e+00 407 2023 9 8.07213e+00 3.81668e+00 342 2023 10 5.06989e+00 3.17594e+00 609 2023 11 4.29358e+00 2.79248e+00 750 2023 12 4.10748e+00 2.05029e+00 280 2024 1 7.19355e+00 3.44882e+00 391 2024 2 8.46379e+00 4.34740e+00 573 2024 3 8.16942e+00 2.52975e+00 294 2024 4 nan nan 0