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 2.10886e+01 1.37731e+00 128 2002 8 2.23580e+01 6.39568e+00 452 2002 9 1.94080e+01 6.07185e+00 567 2002 10 1.73232e+01 6.36787e+00 786 2002 11 1.44622e+01 4.98775e+00 998 2002 12 7.73567e+00 4.27909e+00 768 2003 1 6.58286e+00 3.51558e+00 953 2003 2 1.61477e+01 4.25241e+00 640 2003 3 1.35934e-01 5.80838e-01 106 2003 4 9.83191e+00 1.41820e+01 514 2003 5 1.35054e+01 1.51298e+01 189 2003 6 2.05620e+01 1.56205e+01 434 2003 7 7.49778e+00 4.74289e+00 98 2003 8 1.45491e+01 1.67152e+01 308 2003 9 1.97058e+01 1.37790e+01 610 2003 10 1.45227e+01 8.20934e+00 1073 2003 11 1.37232e+01 4.71868e+00 1062 2003 12 8.62226e+00 4.69975e+00 953 2004 1 1.11061e+01 5.61021e+00 717 2004 2 1.82622e+01 3.83536e+00 239 2004 3 1.02489e+01 5.82165e+00 773 2004 4 1.22214e+01 5.98520e+00 668 2004 5 1.16896e+01 4.69897e+00 686 2004 6 1.39909e+01 6.28638e+00 401 2004 7 1.08319e+01 3.87073e+00 328 2004 8 2.27532e+01 8.85472e+00 540 2004 9 1.12847e+01 8.39950e+00 454 2004 10 3.23096e-03 6.12888e-03 177 2004 11 5.78899e-01 1.98627e+00 510 2004 12 7.98675e-01 1.16960e+00 477 2005 1 6.97949e+00 7.04000e+00 566 2005 2 3.73517e+00 2.99639e+00 502 2005 3 6.11080e+00 2.79565e+00 680 2005 4 8.16472e+00 9.79562e+00 256 2005 5 1.94832e+01 1.13599e+01 477 2005 6 1.48978e+01 1.50127e+01 448 2005 7 7.31355e+00 6.68062e+00 393 2005 8 1.66140e+01 5.05045e+00 77 2005 9 8.98510e+00 6.71894e+00 384 2005 10 1.15696e+01 7.71491e+00 924 2005 11 1.43037e+01 4.67322e+00 1152 2005 12 1.48132e+01 4.78576e+00 991 2006 1 1.15630e+01 5.17620e+00 960 2006 2 8.42447e+00 5.45143e+00 832 2006 3 4.78682e+00 5.00678e+00 1150 2006 4 5.34107e+00 4.70887e+00 646 2006 5 1.93850e+01 7.82165e+00 797 2006 6 1.62187e+01 7.80521e+00 380 2006 7 1.75759e+01 7.47303e+00 512 2006 8 1.92971e+01 7.17146e+00 506 2006 9 1.31422e+01 5.14899e+00 636 2006 10 1.76567e+01 6.91092e+00 1029 2006 11 2.03247e+01 4.73144e+00 845 2006 12 1.80481e+01 7.91724e+00 614 2007 1 2.36886e+01 6.27615e+00 557 2007 2 2.16436e+01 5.14316e+00 954 2007 3 2.20070e+01 3.24228e+00 1215 2007 4 1.85931e+01 7.43928e+00 826 2007 5 2.41094e+01 3.33943e+00 444 2007 6 2.14600e+01 4.10228e+00 454 2007 7 1.90223e+01 5.78286e+00 548 2007 8 1.59624e+01 7.58018e+00 543 2007 9 2.09523e+01 4.48506e+00 611 2007 10 2.66710e+01 5.57304e+00 723 2007 11 2.68821e+01 2.60949e+00 1091 2007 12 2.60204e+01 9.19294e+00 776 2008 1 2.82607e+01 5.78951e+00 1021 2008 2 2.97123e+01 5.52990e+00 1088 2008 3 1.58614e+01 7.60051e+00 1009 2008 4 1.26156e+01 1.73484e+01 506 2008 5 9.34496e+00 6.82438e+00 640 2008 6 1.89854e+01 1.15814e+01 710 2008 7 2.22212e+01 7.30973e+00 375 2008 8 1.38840e+01 1.32999e+00 192 2008 9 1.32658e+01 9.82372e+00 783 2008 10 1.26166e+01 5.22890e+00 1049 2008 11 1.43086e+01 5.28463e+00 988 2008 12 6.97254e+00 5.87923e+00 810 2009 1 7.58211e+00 4.78671e+00 667 2009 2 9.95794e+00 3.65121e+00 992 2009 3 1.95232e+01 6.55372e+00 880 2009 4 9.84686e+00 6.41942e+00 741 2009 5 1.10738e+01 7.52964e+00 180 2009 6 1.85130e+01 1.21726e+01 512 2009 7 2.06118e+01 7.86645e+00 302 2009 8 1.29354e+01 7.47389e+00 512 2009 9 1.89440e+01 9.64991e+00 838 2009 10 1.66541e+01 5.68726e+00 916 2009 11 1.35379e+01 4.78256e+00 577 2009 12 1.36486e+01 4.64145e+00 192 2010 1 2.90842e+00 2.24640e+00 851 2010 2 2.74811e+00 5.21111e+00 791 2010 3 2.30714e+00 2.40339e+00 959 2010 4 2.02935e+00 2.93667e+00 505 2010 5 1.34024e+01 1.44513e+01 647 2010 6 1.65932e+01 8.84375e+00 665 2010 7 1.34062e+01 8.83448e+00 467 2010 8 2.17192e+01 8.36000e+00 444 2010 9 1.66721e+01 6.15011e+00 781 2010 10 1.57557e+01 5.49492e+00 1588 2010 11 2.03486e+01 5.76206e+00 1213 2010 12 1.78308e+01 7.89290e+00 1078 2011 1 1.84307e+01 3.50402e+00 765 2011 2 2.34697e+01 3.43234e+00 576 2011 3 1.85768e+01 2.74403e+00 1018 2011 4 1.26435e+01 5.78832e+00 1001 2011 5 1.55801e+01 8.48304e+00 699 2011 6 1.95654e+01 1.96961e+00 313 2011 7 1.45232e+01 5.08719e+00 431 2011 8 1.92579e+01 6.23794e+00 702 2011 9 2.16708e+01 6.57842e+00 874 2011 10 2.20213e+01 6.13966e+00 1096 2011 11 2.76651e+01 4.90771e+00 1145 2011 12 2.78960e+01 4.12008e+00 1031 2012 1 2.20212e+01 8.32244e+00 1153 2012 2 2.85891e+01 3.76406e+00 346 2012 3 2.49459e+01 6.26865e+00 943 2012 4 2.20865e+01 4.74860e+00 948 2012 5 1.93887e+01 3.79789e+00 640 2012 6 1.30194e+01 7.33092e+00 396 2012 7 8.08333e+00 1.05657e+01 442 2012 8 1.48710e+01 9.62687e+00 250 2012 9 7.60998e+00 6.67573e+00 609 2012 10 8.44426e+00 9.55948e+00 878 2012 11 7.84588e+00 5.25830e+00 1191 2012 12 6.94022e+00 3.15964e+00 512 2013 1 1.40693e+01 7.43578e+00 595 2013 2 1.62779e+01 5.21499e+00 576 2013 3 7.30960e+00 7.61279e+00 928 2013 4 1.64276e+01 1.02618e+01 278 2013 5 8.02272e+00 3.66217e+00 484 2013 6 2.08417e+01 1.20314e+01 303 2013 7 9.10251e+00 4.57086e+00 192 2013 8 1.78032e+01 1.67990e+01 396 2013 9 1.42356e+01 1.57391e+01 587 2013 10 1.46043e+01 1.15359e+01 744 2013 11 1.33060e+01 8.33124e+00 588 2013 12 2.59491e+01 4.17570e+00 896 2014 1 1.51001e+01 3.78245e+00 576 2014 2 5.59712e+00 3.07464e+00 704 2014 3 4.31246e+00 4.11446e+00 827 2014 4 3.38580e+00 2.44702e+00 336 2014 5 2.18567e+01 2.28718e+01 126 2014 6 1.96635e+01 1.15403e+01 264 2014 7 1.29637e+01 9.02097e+00 475 2014 8 1.98260e+01 6.57437e+00 459 2014 9 2.01697e+01 7.00327e+00 486 2014 10 1.28520e+01 7.15005e+00 1403 2014 11 1.80780e+01 5.43299e+00 1022 2014 12 2.10405e+01 8.99684e+00 887 2015 1 2.00106e+01 1.00737e+01 820 2015 2 1.20806e+01 8.67918e+00 942 2015 3 4.58935e+00 5.57407e+00 453 2015 4 2.92126e+00 2.41472e+00 191 2015 5 1.23764e+01 1.50180e+01 833 2015 6 1.69661e+01 8.67513e+00 525 2015 7 2.10295e+01 1.23060e+01 313 2015 8 1.05270e+01 3.95688e+00 448 2015 9 1.11627e+01 7.83461e+00 357 2015 10 1.07963e+01 5.98808e+00 933 2015 11 1.21922e+01 6.68394e+00 835 2015 12 1.60592e+01 5.81280e+00 512 2016 1 1.73980e+01 5.58785e+00 640 2016 2 6.99961e+00 5.52875e+00 1216 2016 3 5.80199e+00 4.63699e+00 756 2016 4 8.93749e+00 1.12759e+01 509 2016 5 9.74226e+00 9.91026e+00 731 2016 6 1.47402e+01 6.43851e+00 507 2016 7 1.43638e+01 7.77079e+00 907 2016 8 1.04920e+01 5.97481e+00 716 2016 9 1.33466e+01 1.05541e+01 881 2016 10 1.54785e+01 7.96292e+00 957 2016 11 2.08784e+01 7.32308e+00 957 2016 12 2.34810e+01 5.70934e+00 790 2017 1 2.11226e+01 7.39950e+00 701 2017 2 1.60967e+01 3.62292e+00 1145 2017 3 1.71421e+01 5.78160e+00 1021 2017 4 1.51521e+01 4.92430e+00 704 2017 5 1.46261e+01 3.82312e+00 487 2017 6 2.02242e+01 7.48783e+00 383 2017 7 1.53151e+01 9.73843e+00 256 2017 8 1.58789e+01 9.68534e+00 582 2017 9 1.32056e+01 7.73731e+00 750 2017 10 4.60241e+00 3.16494e+00 879 2017 11 2.10848e+01 7.52395e+00 1073 2017 12 2.18919e+01 7.18678e+00 705 2018 1 1.68295e+01 4.84709e+00 890 2018 2 1.39360e+01 7.34802e+00 508 2018 3 1.66595e+01 8.40528e+00 933 2018 4 1.19973e+01 6.93418e+00 738 2018 5 9.93631e+00 3.84627e+00 501 2018 6 1.40212e+01 6.29949e+00 406 2018 7 2.19082e+01 1.54258e+01 374 2018 8 1.11151e+01 9.05169e+00 557 2018 9 1.68713e+01 1.21876e+01 953 2018 10 1.21072e+01 1.03724e+01 1064 2018 11 5.01399e+00 2.21093e+00 256 2018 12 4.19131e+00 3.28340e+00 643 2019 1 5.74893e+00 1.15644e+01 818 2019 2 1.20638e+01 1.21823e+01 128 2019 3 4.95282e+00 5.18024e+00 748 2019 4 2.26356e+00 2.00649e+00 498 2019 5 7.40516e+00 4.90944e+00 744 2019 6 1.91105e+01 7.96854e+00 348 2019 7 1.32180e+01 6.64158e+00 369 2019 8 1.28775e+01 8.14716e+00 698 2019 9 1.33385e+01 8.12208e+00 907 2019 10 1.67958e+01 6.33501e+00 818 2019 11 2.09741e+01 5.55606e+00 768 2019 12 1.69351e+01 7.55759e+00 500 2020 1 1.63226e+01 6.04023e+00 640 2020 2 1.79475e+01 6.58076e+00 637 2020 3 1.54940e+01 8.43151e+00 698 2020 4 8.78887e+00 4.23923e+00 581 2020 5 1.39178e+01 6.09116e+00 754 2020 6 7.55714e+00 7.08013e+00 712 2020 7 1.40266e+01 1.30175e+01 328 2020 8 1.10243e+01 2.79742e+00 186 2020 9 1.41210e+01 1.79405e+01 517 2020 10 7.56248e+00 1.00575e+01 625 2020 11 1.09930e+01 9.27592e+00 1034 2020 12 8.14869e+00 5.42346e+00 652 2021 1 3.40605e+00 3.37327e+00 631 2021 2 2.90163e+00 2.23292e+00 514 2021 3 4.01902e+00 3.63283e+00 533 2021 4 2.85620e-01 7.93307e-01 527 2021 5 7.96899e+00 7.87407e+00 661 2021 6 1.99678e+01 1.50588e+01 256 2021 7 9.54606e+00 9.00801e+00 159 2021 8 2.04649e+00 3.00058e+00 228 2021 9 9.44583e+00 1.39641e+01 539 2021 10 8.80416e+00 7.92312e+00 518 2021 11 2.31388e+00 3.89875e+00 733 2021 12 7.63169e+00 1.10349e+01 530 2022 1 3.43904e+00 3.51987e+00 929 2022 2 7.38540e+00 6.25443e+00 771 2022 3 6.90374e+00 5.51487e+00 931 2022 4 5.03634e+00 3.63351e+00 134 2022 5 8.17379e+00 9.82225e+00 424 2022 6 1.81121e+01 7.72346e+00 580 2022 7 1.23049e+01 1.31606e+01 288 2022 8 1.92170e+01 6.23648e+00 628 2022 9 1.91160e+01 9.95766e+00 405 2022 10 9.45043e+00 5.98902e+00 1333 2022 11 1.73613e+01 6.27351e+00 524 2022 12 2.02717e+01 6.46611e+00 973 2023 1 2.06454e+01 5.02502e+00 928 2023 2 1.91762e+01 4.72421e+00 638 2023 3 1.55650e+01 5.47480e+00 741 2023 4 2.05059e+01 5.51503e+00 320 2023 5 1.82024e+01 7.85524e+00 448 2023 6 2.25781e+01 4.99700e+00 412 2023 7 2.20031e+01 1.77790e+00 256 2023 8 1.65047e+01 9.94520e+00 681 2023 9 8.95470e+00 7.71041e+00 576 2023 10 1.30437e+01 5.98144e+00 739 2023 11 1.19086e+01 7.57598e+00 774 2023 12 5.03059e+00 3.75575e+00 305 2024 1 1.96634e+00 1.76338e+00 448 2024 2 5.44717e+00 6.73669e+00 448 2024 3 1.12603e+01 1.10676e+01 448 2024 4 nan nan 0