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 1.91895e+01 5.56483e+00 285 2002 8 2.49121e+01 6.85209e+00 395 2002 9 1.59804e+01 1.09567e+01 438 2002 10 1.67038e+01 5.21244e+00 809 2002 11 1.23235e+01 5.86068e+00 822 2002 12 1.00030e+01 4.04882e+00 637 2003 1 6.84059e+00 3.90647e+00 1009 2003 2 1.21853e+01 5.47572e+00 530 2003 3 9.45665e-01 6.12357e+00 119 2003 4 2.53194e+00 1.76345e+00 174 2003 5 3.89404e-01 9.86207e-01 123 2003 6 1.57580e+01 1.76171e+01 347 2003 7 1.05927e+01 6.82883e+00 252 2003 8 1.43009e+01 1.09412e+01 398 2003 9 1.88841e+01 7.94258e+00 640 2003 10 1.55732e+01 1.31326e+01 970 2003 11 1.14229e+01 7.31124e+00 1066 2003 12 1.02514e+01 5.41956e+00 839 2004 1 1.19115e+01 5.66162e+00 836 2004 2 1.31385e+01 3.93907e+00 358 2004 3 7.51022e+00 8.91416e+00 878 2004 4 1.11121e+01 6.22259e+00 506 2004 5 1.57386e+01 6.72062e+00 578 2004 6 1.94802e+01 5.10815e+00 414 2004 7 1.04722e+01 5.69727e+00 415 2004 8 1.60697e+01 1.02098e+01 618 2004 9 5.89174e+00 8.08392e+00 365 2004 10 9.89890e+00 1.71804e+01 256 2004 11 8.23918e-01 4.06124e+00 459 2004 12 2.38315e+00 7.14115e+00 476 2005 1 4.60866e+00 6.02959e+00 816 2005 2 1.90944e+00 2.05559e+00 518 2005 3 5.15047e+00 4.07870e+00 523 2005 4 1.10922e+01 1.48505e+01 593 2005 5 1.78245e+01 1.49854e+01 385 2005 6 1.06321e+01 1.05737e+01 568 2005 7 9.35367e+00 1.39367e+01 417 2005 8 7.12989e+00 6.63309e+00 129 2005 9 8.95518e+00 8.03710e+00 510 2005 10 1.35268e+01 8.07782e+00 945 2005 11 1.29841e+01 4.80728e+00 1133 2005 12 1.15950e+01 5.23772e+00 1088 2006 1 5.42460e+00 3.86459e+00 724 2006 2 4.28320e+00 4.90027e+00 768 2006 3 4.70983e+00 6.17267e+00 953 2006 4 6.51680e+00 4.35524e+00 315 2006 5 1.87568e+01 5.93084e+00 506 2006 6 1.84485e+01 5.52508e+00 306 2006 7 1.47448e+01 5.45956e+00 347 2006 8 2.36909e+01 1.08832e+01 327 2006 9 1.56381e+01 6.64814e+00 610 2006 10 1.78795e+01 7.89947e+00 1000 2006 11 1.64529e+01 8.03632e+00 931 2006 12 1.68148e+01 7.91908e+00 576 2007 1 1.75803e+01 4.97752e+00 443 2007 2 2.09507e+01 7.91595e+00 705 2007 3 1.77164e+01 7.88464e+00 1174 2007 4 1.80004e+01 7.67715e+00 684 2007 5 2.21873e+01 4.95872e+00 263 2007 6 2.09537e+01 5.14562e+00 435 2007 7 1.69534e+01 4.18226e+00 512 2007 8 1.73110e+01 1.00012e+01 468 2007 9 1.25740e+01 4.57321e+00 576 2007 10 2.09380e+01 6.01769e+00 778 2007 11 2.57157e+01 4.95065e+00 1273 2007 12 2.30054e+01 1.00160e+01 765 2008 1 2.37495e+01 1.01304e+01 640 2008 2 1.96268e+01 6.73896e+00 1049 2008 3 1.01076e+01 9.61914e+00 748 2008 4 1.13316e+01 1.51412e+01 760 2008 5 9.10599e+00 1.00131e+01 635 2008 6 7.39744e+00 6.24506e+00 407 2008 7 1.96087e+01 1.06609e+01 525 2008 8 1.68667e+01 2.48724e+00 256 2008 9 1.08484e+01 8.48473e+00 573 2008 10 1.11910e+01 7.34463e+00 949 2008 11 1.35746e+01 6.29636e+00 1010 2008 12 6.00754e+00 4.36310e+00 960 2009 1 1.00819e+01 8.60404e+00 832 2009 2 9.66533e+00 4.37004e+00 1029 2009 3 1.71807e+01 6.39070e+00 890 2009 4 9.35651e+00 7.55203e+00 542 2009 5 8.82432e+00 6.70745e+00 261 2009 6 1.26773e+01 1.29608e+01 400 2009 7 2.02394e+01 1.07745e+01 288 2009 8 1.79188e+01 1.11654e+01 584 2009 9 2.04797e+01 1.21121e+01 688 2009 10 2.04350e+01 7.78233e+00 962 2009 11 1.42989e+01 5.65241e+00 762 2009 12 1.13211e+01 7.50449e+00 256 2010 1 6.33157e+00 4.40937e+00 896 2010 2 2.85205e+00 3.68625e+00 775 2010 3 8.65690e-01 9.37974e-01 832 2010 4 2.54853e+00 2.67813e+00 354 2010 5 1.07195e+01 1.19358e+01 489 2010 6 1.79355e+01 5.83530e+00 634 2010 7 1.16503e+01 8.33006e+00 501 2010 8 1.20263e+01 9.88338e+00 366 2010 9 1.76770e+01 1.01024e+01 562 2010 10 1.47945e+01 5.86800e+00 1447 2010 11 1.81266e+01 5.47979e+00 1182 2010 12 1.69178e+01 8.26258e+00 1130 2011 1 2.22321e+01 6.56081e+00 641 2011 2 1.84823e+01 3.82348e+00 768 2011 3 1.86581e+01 5.82001e+00 953 2011 4 1.87358e+01 5.16081e+00 1013 2011 5 1.78032e+01 7.48449e+00 864 2011 6 1.84101e+01 4.22615e+00 256 2011 7 1.66642e+01 5.00143e+00 497 2011 8 2.16786e+01 7.85235e+00 626 2011 9 1.97841e+01 7.27850e+00 749 2011 10 2.00152e+01 8.92008e+00 1017 2011 11 2.74340e+01 8.00552e+00 1028 2011 12 2.83492e+01 5.98496e+00 1048 2012 1 2.31156e+01 9.08750e+00 1090 2012 2 2.32578e+01 4.52231e+00 310 2012 3 2.54952e+01 7.57746e+00 894 2012 4 2.35677e+01 5.50183e+00 973 2012 5 2.37379e+01 5.24479e+00 505 2012 6 1.38303e+01 3.28545e+00 245 2012 7 9.16685e+00 1.13754e+01 367 2012 8 9.73905e+00 1.63743e+01 380 2012 9 2.19616e+00 3.43188e+00 353 2012 10 5.86783e+00 1.23858e+01 775 2012 11 8.19796e+00 5.33586e+00 1054 2012 12 6.03205e+00 5.09884e+00 765 2013 1 1.03788e+01 5.47900e+00 704 2013 2 1.72287e+01 5.03439e+00 660 2013 3 9.64019e+00 5.80968e+00 800 2013 4 1.11902e+01 1.19513e+01 471 2013 5 1.18730e+01 8.99257e+00 582 2013 6 2.16050e+01 1.42865e+01 450 2013 7 8.12719e+00 5.97650e+00 144 2013 8 1.52060e+01 1.89916e+01 249 2013 9 1.20210e+01 1.34136e+01 640 2013 10 1.30662e+01 1.25809e+01 909 2013 11 5.78514e+00 4.17261e+00 528 2013 12 1.25566e+01 8.44870e+00 768 2014 1 1.40303e+01 4.22684e+00 576 2014 2 5.07548e+00 3.58929e+00 732 2014 3 3.71545e+00 2.24972e+00 696 2014 4 4.65303e+00 4.85685e+00 264 2014 5 1.50553e+00 7.52825e+00 133 2014 6 1.98308e+01 1.95781e+01 239 2014 7 1.29892e+01 8.83317e+00 641 2014 8 1.26755e+01 7.52991e+00 373 2014 9 1.73242e+01 1.17137e+01 444 2014 10 1.21029e+01 1.32588e+01 1464 2014 11 1.20640e+01 5.36139e+00 1135 2014 12 1.80812e+01 8.48767e+00 656 2015 1 1.71851e+01 9.82624e+00 792 2015 2 1.94853e+01 7.24476e+00 832 2015 3 6.93716e+00 7.48538e+00 352 2015 4 1.54027e+01 1.00915e+01 177 2015 5 1.19897e+01 1.11807e+01 723 2015 6 1.69249e+01 9.33415e+00 580 2015 7 2.00329e+01 1.57005e+01 317 2015 8 8.99532e+00 6.83222e+00 464 2015 9 9.70747e+00 8.27110e+00 368 2015 10 1.03601e+01 6.56193e+00 837 2015 11 1.03557e+01 8.54009e+00 876 2015 12 1.51123e+01 6.35487e+00 493 2016 1 1.02945e+01 5.66048e+00 640 2016 2 8.69565e+00 5.97227e+00 1253 2016 3 7.29532e+00 4.30724e+00 695 2016 4 1.08917e+01 1.00343e+01 436 2016 5 8.51021e+00 5.99857e+00 677 2016 6 1.40752e+01 5.94467e+00 573 2016 7 1.18457e+01 9.26264e+00 853 2016 8 1.30198e+01 6.93917e+00 674 2016 9 7.29194e+00 6.50375e+00 731 2016 10 1.51365e+01 8.85806e+00 1007 2016 11 2.26994e+01 5.06614e+00 1027 2016 12 2.09306e+01 4.73982e+00 831 2017 1 1.60392e+01 9.56996e+00 640 2017 2 1.26125e+01 6.11294e+00 1083 2017 3 1.68307e+01 7.68559e+00 1064 2017 4 1.31156e+01 5.89425e+00 809 2017 5 1.17273e+01 4.26039e+00 510 2017 6 2.08867e+01 7.07599e+00 279 2017 7 1.74451e+01 1.27624e+01 219 2017 8 1.22006e+01 9.45982e+00 545 2017 9 1.04399e+01 8.73197e+00 670 2017 10 2.20898e+00 3.77505e+00 426 2017 11 1.28850e+01 7.49179e+00 1230 2017 12 1.60000e+01 5.71416e+00 734 2018 1 1.83728e+01 5.56553e+00 640 2018 2 1.97384e+01 6.13123e+00 569 2018 3 1.56783e+01 7.09576e+00 945 2018 4 1.01426e+01 8.42815e+00 574 2018 5 1.19306e+01 8.78238e+00 576 2018 6 1.49785e+01 8.93565e+00 428 2018 7 2.28877e+01 1.62410e+01 207 2018 8 1.65499e+01 1.50332e+01 393 2018 9 2.06799e+01 1.25489e+01 683 2018 10 1.25502e+01 9.45156e+00 1001 2018 11 3.19463e+00 2.66620e+00 326 2018 12 4.08006e+00 3.97305e+00 644 2019 1 1.83679e+00 2.72940e+00 653 2019 2 8.90814e+00 1.15994e+01 333 2019 3 5.26657e+00 6.03271e+00 689 2019 4 2.65327e+00 2.06234e+00 353 2019 5 1.08609e+01 8.36101e+00 840 2019 6 1.76428e+01 5.00738e+00 265 2019 7 1.49830e+01 7.73406e+00 388 2019 8 9.79609e+00 1.41275e+01 565 2019 9 1.77433e+01 7.83193e+00 765 2019 10 1.12771e+01 7.90219e+00 668 2019 11 1.46741e+01 5.94780e+00 878 2019 12 1.45861e+01 7.12225e+00 695 2020 1 1.46636e+01 6.61809e+00 690 2020 2 1.43622e+01 8.04220e+00 578 2020 3 1.16357e+01 1.00836e+01 713 2020 4 6.55054e+00 4.89954e+00 572 2020 5 1.12204e+01 1.16975e+01 806 2020 6 1.14225e+01 6.15793e+00 680 2020 7 1.84219e+01 1.32300e+01 310 2020 8 1.18902e+01 4.34119e+00 119 2020 9 8.94301e+00 1.56219e+01 495 2020 10 7.35778e+00 8.56008e+00 846 2020 11 3.01580e+00 3.73913e+00 833 2020 12 8.81385e+00 5.14778e+00 824 2021 1 4.54039e+00 3.56468e+00 689 2021 2 1.27311e+00 1.01848e+00 558 2021 3 2.13694e+00 3.41143e+00 377 2021 4 7.65529e-01 1.28607e+00 427 2021 5 6.20449e+00 9.73095e+00 660 2021 6 1.53974e+01 5.11340e+00 116 2021 7 6.37146e+00 4.53795e+00 192 2021 8 1.91372e+01 2.83248e+01 222 2021 9 1.18770e+01 1.77622e+01 482 2021 10 1.02927e+01 9.96038e+00 518 2021 11 3.59206e+00 6.40662e+00 938 2021 12 5.66180e+00 8.33864e+00 673 2022 1 3.34276e+00 2.65727e+00 897 2022 2 8.73106e+00 5.11487e+00 977 2022 3 6.94240e+00 4.72498e+00 797 2022 4 1.35120e+01 2.47040e+00 66 2022 5 1.15747e+01 1.22912e+01 546 2022 6 1.22253e+01 5.57891e+00 485 2022 7 1.39518e+01 1.39677e+01 315 2022 8 2.07693e+01 4.93751e+00 395 2022 9 1.80473e+01 1.09150e+01 378 2022 10 1.12992e+01 6.56384e+00 1150 2022 11 1.74735e+01 5.55735e+00 527 2022 12 1.49520e+01 8.14581e+00 960 2023 1 1.76494e+01 6.01605e+00 980 2023 2 1.69912e+01 6.44069e+00 723 2023 3 1.59989e+01 6.09749e+00 715 2023 4 1.84142e+01 7.98434e+00 384 2023 5 1.86341e+01 8.67971e+00 449 2023 6 2.69994e+01 5.76512e+00 267 2023 7 1.88340e+01 8.46421e+00 428 2023 8 2.28715e+01 1.48491e+01 590 2023 9 8.65836e+00 9.08090e+00 511 2023 10 1.17383e+01 8.01797e+00 692 2023 11 1.44286e+01 7.92715e+00 642 2023 12 6.46730e+00 5.17400e+00 318 2024 1 1.84268e+00 2.60533e+00 565 2024 2 5.29617e+00 5.36352e+00 651 2024 3 8.41916e+00 8.59592e+00 320 2024 4 nan nan 0