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 2.77585e+01 3.11058e+00 320 2002 8 1.82910e+01 4.94175e+00 270 2002 9 1.09328e+01 4.13477e+00 120 2002 10 1.07835e+01 2.72397e+00 400 2002 11 5.67358e+00 8.77418e-01 240 2002 12 5.89752e+00 1.47346e+00 270 2003 1 4.76781e+00 2.14201e+00 310 2003 2 1.56421e+01 2.92744e+00 939 2003 3 2.53486e+01 3.91731e+00 908 2003 4 1.82091e+01 1.15975e+01 551 2003 5 3.16445e+01 4.65188e+00 470 2003 6 3.69594e+01 8.68173e-01 209 2003 7 3.48825e+01 5.54237e+00 463 2003 8 2.94940e+01 1.15441e+00 71 2003 9 1.75928e+01 3.99272e+00 269 2003 10 1.35857e+01 8.89229e+00 671 2003 11 1.02907e+01 5.10048e+00 771 2003 12 8.68932e+00 4.06398e+00 192 2004 1 1.14624e+01 3.70676e+00 651 2004 2 1.13064e+01 4.78582e+00 960 2004 3 1.86859e+01 4.73461e+00 967 2004 4 1.89591e+01 7.64827e+00 714 2004 5 2.02388e+01 5.68123e+00 631 2004 6 3.29242e+01 3.95432e+00 643 2004 7 3.62796e+01 1.59642e+00 389 2004 8 2.98596e+01 6.07976e+00 371 2004 9 1.60865e+01 1.00527e+01 400 2004 10 1.37551e+01 4.23172e+00 803 2004 11 1.25185e+01 6.70566e+00 907 2004 12 8.16695e+00 7.37142e+00 385 2005 1 6.87218e+00 3.81061e+00 450 2005 2 8.78401e+00 3.65126e+00 782 2005 3 1.80458e+01 9.72516e+00 602 2005 4 2.52485e+01 5.02986e+00 560 2005 5 2.41812e+01 3.74978e+00 660 2005 6 2.06529e+01 9.40028e+00 320 2005 7 2.07824e+01 1.28651e+01 427 2005 8 2.56975e+01 8.58235e+00 704 2005 9 2.85270e+01 4.65425e+00 417 2005 10 1.12363e+01 5.30456e+00 266 2005 11 3.61852e-01 1.61055e-01 128 2005 12 3.96848e+00 4.39493e-01 191 2006 1 3.65903e+00 4.91615e+00 461 2006 2 1.57285e+01 7.90692e+00 715 2006 3 2.22055e+01 8.19499e+00 960 2006 4 2.63367e+01 6.16725e+00 865 2006 5 2.75357e+01 3.53184e+00 377 2006 6 3.36853e+01 2.84941e+00 719 2006 7 2.86960e+01 2.46319e+00 355 2006 8 2.23844e+01 4.64342e+00 541 2006 9 1.65513e+01 4.85123e+00 467 2006 10 1.08508e+01 3.08393e+00 551 2006 11 8.55443e+00 6.10696e+00 254 2006 12 9.21610e+00 6.69906e+00 281 2007 1 1.18569e+01 7.38225e+00 528 2007 2 4.24838e+00 3.64383e+00 209 2007 3 1.39161e+01 5.22818e+00 863 2007 4 1.41394e+01 9.82762e+00 512 2007 5 2.75354e+01 5.62950e+00 586 2007 6 3.04269e+01 7.07177e+00 351 2007 7 3.21859e+01 2.65938e+00 608 2007 8 2.22699e+01 8.02355e+00 543 2007 9 1.83983e+01 4.77076e+00 322 2007 10 1.27686e+01 5.81591e+00 454 2007 11 1.31517e+01 5.18409e+00 542 2007 12 1.67211e+01 7.16538e+00 543 2008 1 1.27628e+01 4.85467e+00 242 2008 2 2.48460e+01 6.96297e+00 792 2008 3 9.79948e+00 7.08738e+00 576 2008 4 1.96104e+01 7.49118e+00 764 2008 5 2.86719e+01 8.03746e+00 322 2008 6 2.75643e+01 2.46525e+00 346 2008 7 1.96882e+01 7.55947e+00 263 2008 8 2.12499e+01 9.24849e+00 311 2008 9 1.30800e+01 6.81881e+00 304 2008 10 6.97855e+00 1.67573e+00 384 2008 11 6.08070e+00 3.74662e+00 533 2008 12 3.53814e+00 4.81146e+00 295 2009 1 1.00631e+01 6.00973e+00 512 2009 2 9.92340e+00 5.19950e+00 838 2009 3 1.82826e+01 8.72013e+00 656 2009 4 2.07232e+01 1.35249e+01 503 2009 5 2.34221e+01 6.31863e+00 374 2009 6 3.21816e+01 5.60445e+00 362 2009 7 3.57468e+01 1.59363e+00 395 2009 8 2.64527e+01 2.64818e+00 164 2009 9 2.49549e+01 7.38747e+00 486 2009 10 1.28181e+01 4.10686e+00 656 2009 11 6.47335e+00 3.75412e+00 205 2009 12 1.38447e+01 5.79856e+00 384 2010 1 1.37069e+01 1.06039e+01 168 2010 2 7.51156e+00 7.30477e+00 277 2010 3 8.04388e+00 2.32782e+00 353 2010 4 1.88467e+01 7.41213e+00 566 2010 5 3.38396e+01 6.36754e+00 587 2010 6 3.30078e+01 3.42415e+00 743 2010 7 2.83897e+01 3.10118e+00 342 2010 8 3.44858e+01 6.94567e+00 288 2010 9 2.00819e+01 8.75469e+00 377 2010 10 1.09489e+01 6.26211e+00 813 2010 11 1.10994e+01 6.72998e+00 303 2010 12 5.07402e+00 1.94806e-01 64 2011 1 7.11182e+00 5.07633e+00 182 2011 2 1.51258e+01 3.58723e+00 935 2011 3 2.72637e+01 5.88003e+00 803 2011 4 3.23320e+01 1.87006e+00 842 2011 5 3.43934e+01 3.03134e+00 649 2011 6 1.85112e+01 3.05353e+00 400 2011 7 3.77882e+01 5.19082e+00 512 2011 8 2.97520e+01 4.51299e+00 420 2011 9 2.00126e+01 5.82018e+00 505 2011 10 8.86320e+00 2.68930e+00 206 2011 11 8.53399e+00 1.42302e+00 266 2011 12 6.32001e+00 3.71224e+00 778 2012 1 1.01009e+01 3.81931e+00 436 2012 2 2.69039e+01 1.05052e+01 495 2012 3 2.43929e+01 1.05648e+01 764 2012 4 2.00251e+01 1.06842e+01 564 2012 5 2.83310e+01 3.85454e+00 455 2012 6 3.06031e+01 1.52699e+00 206 2012 7 3.07491e+01 4.28310e+00 270 2012 8 3.39022e+01 3.33740e+00 297 2012 9 2.73528e+01 4.41547e+00 506 2012 10 2.50606e+01 7.02612e+00 752 2012 11 2.16793e+00 9.12507e-01 416 2012 12 7.66362e+00 5.26963e+00 585 2013 1 1.48234e+01 4.31498e+00 593 2013 2 1.31343e+01 5.97184e+00 448 2013 3 9.30560e+00 3.93135e+00 690 2013 4 2.51072e+01 4.79012e+00 575 2013 5 3.28450e+01 4.00356e+00 573 2013 6 3.06980e+01 3.36468e+00 295 2013 7 3.15082e+01 9.28153e+00 384 2013 8 2.32339e+01 6.87244e+00 385 2013 9 1.43942e+01 3.38352e+00 231 2013 10 9.58784e+00 2.08098e+00 579 2013 11 6.05610e+00 2.57371e+00 555 2013 12 1.53608e+01 5.96914e+00 320 2014 1 5.72525e+00 2.51249e+00 16 2014 2 1.45884e+01 7.91156e+00 699 2014 3 1.27090e+01 5.74947e+00 727 2014 4 2.09723e+01 5.56701e+00 393 2014 5 1.62861e+01 8.17920e+00 741 2014 6 2.62651e+01 3.59523e+00 594 2014 7 3.24510e+01 5.80117e+00 202 2014 8 2.26505e+01 6.10429e+00 415 2014 9 1.80545e+01 2.68856e+00 195 2014 10 1.16069e+01 8.09126e+00 343 2014 11 9.20905e+00 4.77070e+00 231 2014 12 9.01843e+00 2.92815e+00 538 2015 1 8.32221e+00 2.73495e+00 327 2015 2 5.81423e+00 1.68237e+00 76 2015 3 2.52160e+01 1.02686e+01 720 2015 4 3.03341e+01 1.49663e+00 495 2015 5 2.60189e+01 3.59853e+00 725 2015 6 2.47616e+01 6.75459e+00 259 2015 7 3.31313e+01 4.14833e+00 195 2015 8 2.87548e+01 1.75344e+00 268 2015 9 1.98766e+01 3.97452e+00 547 2015 10 8.78483e+00 3.52641e+00 373 2015 11 7.56568e+00 2.38297e+00 603 2015 12 1.24097e+01 3.22707e+00 375 2016 1 9.22950e+00 4.44848e+00 86 2016 2 1.69964e+01 4.63642e+00 128 2016 3 1.54117e+01 8.14291e+00 531 2016 4 2.73731e+01 3.63966e+00 702 2016 5 2.06861e+01 4.17587e+00 616 2016 6 3.08287e+01 3.43396e+00 451 2016 7 3.28853e+01 2.65810e+00 467 2016 8 2.87773e+01 3.87769e+00 575 2016 9 2.26222e+01 4.04807e+00 749 2016 10 7.70747e+00 2.19995e+00 565 2016 11 3.80134e+00 3.69979e+00 1149 2016 12 6.75429e+00 2.75848e+00 462 2017 1 9.29396e+00 3.73033e+00 288 2017 2 2.11853e+01 4.73699e+00 990 2017 3 2.09899e+01 7.82752e+00 896 2017 4 2.03844e+01 5.54266e+00 576 2017 5 2.55920e+01 2.63464e+00 448 2017 6 2.57074e+01 2.78491e+00 256 2017 7 1.61620e+01 7.77619e+00 185 2017 8 2.28483e+01 6.98137e+00 463 2017 9 1.67008e+01 4.12969e+00 255 2017 10 8.93474e+00 4.70566e+00 454 2017 11 4.95766e+00 1.40986e+00 713 2017 12 7.17254e+00 2.69820e+00 621 2018 1 3.88348e+00 3.50045e+00 253 2018 2 2.17358e+01 3.69729e+00 918 2018 3 1.56710e+01 1.12411e+01 762 2018 4 2.84202e+01 3.24441e+00 679 2018 5 2.42292e+01 8.27437e+00 256 2018 6 3.67861e+01 4.69559e+00 388 2018 7 3.54584e+01 4.55993e+00 446 2018 8 2.05320e+01 1.06983e+01 108 2018 9 1.40760e+01 6.89686e+00 580 2018 10 1.17410e+01 7.80580e+00 942 2018 11 2.07465e+01 3.39454e+00 704 2018 12 6.06464e+00 4.24191e+00 279 2019 1 1.51390e+01 7.47648e+00 513 2019 2 2.06089e+01 1.02123e+01 812 2019 3 2.46593e+01 9.86144e+00 717 2019 4 1.97317e+01 7.55139e+00 532 2019 5 2.00130e+01 1.20247e+01 746 2019 6 2.95967e+01 3.28460e+00 532 2019 7 2.71446e+01 5.87532e+00 463 2019 8 3.05044e+01 4.36797e+00 388 2019 9 3.33179e+00 5.08218e+00 169 2019 10 1.02126e+01 5.58729e+00 566 2019 11 6.04332e+00 1.74067e+00 506 2019 12 1.11665e+01 2.98776e+00 233 2020 1 1.39446e+01 8.37326e+00 403 2020 2 1.04774e+01 6.67505e+00 699 2020 3 1.29537e+01 7.96093e+00 870 2020 4 2.82856e+01 6.50641e+00 448 2020 5 2.48326e+01 5.65488e+00 256 2020 6 3.10365e+01 1.05060e+01 373 2020 7 2.49128e+01 4.85108e+00 253 2020 8 2.46953e+01 6.94684e+00 407 2020 9 1.45703e+01 4.98988e+00 209 2020 10 5.80696e+00 6.01263e+00 165 2020 11 3.31060e+00 9.17920e-01 360 2020 12 6.49027e+00 8.23521e-01 96 2021 1 8.20603e+00 2.13908e+00 196 2021 2 1.87273e+01 5.35618e+00 610 2021 3 1.82813e+01 5.68175e+00 905 2021 4 1.77090e+01 1.04950e+01 687 2021 5 2.39549e+01 7.82989e+00 602 2021 6 2.60514e+01 9.81446e+00 215 2021 7 1.61301e+01 7.22730e+00 435 2021 8 2.84107e+01 3.79993e+00 215 2021 9 1.56977e+01 6.12005e+00 559 2021 10 1.60467e+01 6.72637e+00 218 2021 11 9.38812e+00 5.61464e+00 324 2021 12 1.48056e+01 5.87822e+00 938 2022 1 1.66687e+01 8.27586e+00 329 2022 2 2.23450e+01 5.19083e+00 322 2022 3 1.73192e+01 6.21957e+00 730 2022 4 2.13922e+01 4.04300e+00 320 2022 5 2.38523e+01 5.51802e+00 577 2022 6 2.07073e+01 6.24579e+00 565 2022 7 2.31184e+01 1.17594e+01 199 2022 8 2.86896e+01 2.67335e+00 484 2022 9 2.68130e+01 3.12754e+00 367 2022 10 3.80307e+00 2.76581e+00 314 2022 11 4.90733e+00 3.07753e+00 571 2022 12 4.31680e+00 1.49612e+00 540 2023 1 6.88538e+00 2.04439e+00 247 2023 2 1.48285e+01 7.96211e+00 1081 2023 3 2.31428e+01 1.07783e+01 807 2023 4 2.42857e+01 6.86701e+00 348 2023 5 2.01690e+01 9.60038e+00 577 2023 6 3.84674e+01 3.76396e+00 442 2023 7 3.67393e+01 5.37791e+00 405 2023 8 2.46349e+01 8.70977e+00 424 2023 9 1.81361e+01 4.77157e+00 420 2023 10 1.10359e+01 5.10880e+00 195 2023 11 1.18811e+01 5.91959e+00 609 2023 12 1.12902e+01 5.24588e+00 236 2024 1 1.58440e+01 7.06259e+00 256 2024 2 6.94175e+00 3.33356e+00 675 2024 3 1.97908e+01 1.00946e+01 384 2024 4 2.39218e+01 7.18472e-01 64