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 3.16208e+01 1.09855e+00 127 2002 8 2.58115e+01 2.46617e+00 377 2002 9 1.95955e+01 7.48634e+00 546 2002 10 9.79207e+00 3.76757e+00 1002 2002 11 5.34586e+00 3.20093e+00 595 2002 12 7.30277e+00 3.71056e+00 735 2003 1 9.80335e+00 5.27856e+00 957 2003 2 1.14942e+01 4.21393e+00 640 2003 3 1.77360e+01 3.08914e+00 310 2003 4 1.60249e+01 4.60371e+00 704 2003 5 2.40275e+01 5.11585e+00 749 2003 6 3.20350e+01 8.60657e+00 256 2003 7 3.28309e+01 2.88559e+00 425 2003 8 2.59039e+01 4.28587e+00 295 2003 9 2.11356e+01 6.65686e+00 509 2003 10 1.54610e+01 3.85578e+00 841 2003 11 1.25453e+01 5.12879e+00 1216 2003 12 3.48390e+00 2.18576e+00 767 2004 1 1.23932e+01 2.58788e+00 827 2004 2 1.77391e+01 6.57607e+00 447 2004 3 2.74715e+01 3.79478e+00 992 2004 4 1.59401e+01 6.05623e+00 576 2004 5 3.24238e+01 4.88696e+00 768 2004 6 3.37969e+01 4.45694e+00 825 2004 7 2.88244e+01 6.84365e+00 409 2004 8 2.57354e+01 3.45115e+00 360 2004 9 8.37604e+00 7.70232e+00 384 2004 10 5.03419e+00 1.99348e+00 912 2004 11 1.14714e+01 3.39056e+00 941 2004 12 6.58504e+00 5.24386e+00 512 2005 1 4.42069e+00 5.18907e+00 768 2005 2 1.22623e+01 7.59775e+00 871 2005 3 1.43851e+01 5.08936e+00 384 2005 4 2.19848e+01 4.82606e+00 576 2005 5 3.25347e+01 3.71354e+00 649 2005 6 2.93082e+01 3.34475e+00 320 2005 7 1.61269e+01 1.08302e+01 640 2005 8 8.76157e+00 4.38566e+00 571 2005 9 1.07901e+00 1.57871e+00 387 2005 10 9.07775e-01 8.58793e-01 765 2005 11 1.60222e+00 1.44818e+00 849 2005 12 4.51204e+00 2.49268e+00 924 2006 1 1.03899e+01 6.47133e+00 582 2006 2 1.08980e+01 6.21798e+00 960 2006 3 2.00584e+01 2.67723e+00 1024 2006 4 3.02124e+01 3.67134e+00 862 2006 5 3.00413e+01 3.48166e+00 801 2006 6 2.57401e+01 4.45559e+00 672 2006 7 2.94661e+01 3.81783e+00 503 2006 8 2.84849e+01 5.42237e+00 384 2006 9 2.17544e+01 6.26524e+00 610 2006 10 1.08093e+01 2.83540e+00 893 2006 11 1.03733e+01 6.30846e+00 723 2006 12 6.30357e+00 5.37090e+00 448 2007 1 1.21003e+01 3.03798e+00 641 2007 2 1.43823e+01 6.64635e+00 516 2007 3 2.68212e+01 7.67281e+00 701 2007 4 1.79158e+01 9.15924e+00 901 2007 5 2.35889e+01 5.64020e+00 640 2007 6 2.97631e+01 4.92080e+00 325 2007 7 3.32282e+01 7.07937e+00 589 2007 8 3.17292e+01 3.69093e+00 733 2007 9 1.45609e+01 7.81096e+00 768 2007 10 1.27389e+01 3.41743e+00 655 2007 11 1.22662e+01 3.26995e+00 1007 2007 12 1.48217e+01 6.41005e+00 998 2008 1 1.27869e+01 6.31121e+00 829 2008 2 2.21191e+01 5.65360e+00 736 2008 3 2.00850e+01 1.06776e+01 808 2008 4 2.78490e+01 5.41945e+00 960 2008 5 2.70178e+01 3.66192e+00 707 2008 6 3.34276e+01 1.76036e+00 623 2008 7 3.24712e+01 6.54340e+00 491 2008 8 2.54766e+01 1.35675e+00 158 2008 9 1.50344e+01 7.70096e+00 512 2008 10 1.06102e+01 4.49768e+00 896 2008 11 1.22361e+01 4.36269e+00 949 2008 12 1.28456e+01 7.47099e+00 1176 2009 1 1.18471e+01 7.76381e+00 768 2009 2 2.14688e+01 5.99696e+00 879 2009 3 2.26756e+01 8.40974e+00 1088 2009 4 1.93919e+01 5.83152e+00 651 2009 5 3.36399e+01 3.67720e+00 881 2009 6 3.42720e+01 2.97224e+00 243 2009 7 3.49659e+01 2.08731e+00 262 2009 8 3.04161e+01 5.61782e+00 600 2009 9 2.18825e+01 4.69866e+00 485 2009 10 1.68333e+01 5.35358e+00 854 2009 11 1.10349e+01 5.48634e+00 387 2009 12 5.20008e+00 2.95681e+00 237 2010 1 1.09152e+01 4.37301e+00 388 2010 2 7.36065e+00 4.29781e+00 412 2010 3 8.19508e+00 6.09626e+00 843 2010 4 2.01941e+01 2.87143e+00 798 2010 5 2.77328e+01 4.62194e+00 739 2010 6 3.32059e+01 2.76692e+00 792 2010 7 3.08347e+01 1.43694e+00 338 2010 8 2.80259e+01 2.45212e+00 475 2010 9 2.56105e+01 2.31738e+00 833 2010 10 2.24643e+01 2.98907e+00 1153 2010 11 1.46511e+01 3.68318e+00 1088 2010 12 3.12823e+00 2.34125e+00 804 2011 1 1.14155e+01 2.83888e+00 537 2011 2 1.52511e+01 2.51566e+00 704 2011 3 1.89692e+01 4.30995e+00 991 2011 4 2.14465e+01 4.90755e+00 902 2011 5 1.29796e+01 4.93692e+00 960 2011 6 2.28071e+01 2.93759e+00 613 2011 7 3.41899e+01 2.54146e+00 545 2011 8 2.96257e+01 3.91359e+00 371 2011 9 1.85867e+01 5.94160e+00 412 2011 10 9.10983e+00 5.04076e+00 816 2011 11 1.23130e+01 6.75795e+00 1266 2011 12 1.02748e+01 4.22231e+00 1166 2012 1 1.26524e+01 7.01560e+00 828 2012 2 1.78060e+01 6.26710e+00 700 2012 3 2.55911e+01 3.92778e+00 944 2012 4 2.31234e+01 3.51225e+00 640 2012 5 2.92963e+01 2.01988e+00 512 2012 6 1.86600e+01 1.15179e+01 256 2012 7 2.77184e+01 4.92208e+00 394 2012 8 3.50848e+01 2.86618e+00 444 2012 9 2.59433e+01 3.53785e+00 541 2012 10 2.13934e+01 6.94212e+00 952 2012 11 1.23828e+01 2.86779e+00 967 2012 12 9.33090e+00 6.69715e+00 603 2013 1 1.35477e+01 6.26782e+00 1050 2013 2 1.52546e+01 6.56520e+00 785 2013 3 1.88710e+01 4.88396e+00 832 2013 4 2.76938e+01 2.93423e+00 576 2013 5 1.79294e+01 3.53305e+00 692 2013 6 2.29494e+01 2.64584e+00 473 2013 7 2.61238e+01 2.05258e+00 320 2013 8 2.59608e+01 3.22896e+00 575 2013 9 1.91561e+01 5.26246e+00 819 2013 10 1.11629e+01 3.38274e+00 793 2013 11 1.34973e+01 2.98929e+00 277 2013 12 9.69741e+00 3.86108e+00 507 2014 1 2.60091e+00 1.67368e+00 448 2014 2 1.13710e+01 4.98962e+00 714 2014 3 1.52776e+01 5.08523e+00 663 2014 4 1.88551e+01 2.39387e+00 512 2014 5 2.71437e+01 6.16597e+00 879 2014 6 3.12393e+01 4.68146e+00 642 2014 7 2.86874e+01 5.46315e+00 419 2014 8 2.23497e+01 4.35073e+00 584 2014 9 1.74381e+01 3.21214e+00 171 2014 10 1.30467e+01 3.97625e+00 1004 2014 11 6.45570e+00 2.34284e+00 971 2014 12 6.00297e+00 1.99098e+00 896 2015 1 5.81329e+00 2.64426e+00 640 2015 2 9.96356e+00 3.73429e+00 743 2015 3 2.54595e+01 2.81619e+00 1104 2015 4 2.42890e+01 1.79056e+00 553 2015 5 1.48929e+01 7.26848e+00 1077 2015 6 1.81454e+01 3.49300e+00 565 2015 7 1.71697e+01 3.40152e+00 384 2015 8 2.21303e+01 4.33034e+00 466 2015 9 1.77792e+01 3.44082e+00 256 2015 10 7.29769e+00 1.92642e+00 547 2015 11 1.41922e+01 3.43330e+00 832 2015 12 1.53875e+01 6.38529e+00 749 2016 1 5.38727e+00 5.37910e+00 325 2016 2 6.55348e+00 7.36540e+00 1095 2016 3 1.69421e+01 7.79138e+00 678 2016 4 2.21469e+01 2.67419e+00 832 2016 5 1.70317e+01 7.02157e+00 760 2016 6 3.02520e+01 6.08431e+00 600 2016 7 3.39987e+01 3.46861e+00 483 2016 8 2.05765e+01 4.31023e+00 739 2016 9 2.17248e+01 5.50443e+00 640 2016 10 1.82021e+01 6.68247e+00 928 2016 11 1.76314e+01 2.55004e+00 917 2016 12 1.76163e+01 2.38698e+00 828 2017 1 1.04780e+01 8.09974e+00 771 2017 2 1.80660e+01 6.46737e+00 1164 2017 3 2.30022e+01 5.57552e+00 1234 2017 4 2.84552e+01 3.82737e+00 640 2017 5 2.25748e+01 6.45206e+00 482 2017 6 2.64108e+01 7.56002e+00 256 2017 7 3.40770e+01 4.79383e+00 572 2017 8 2.07881e+01 3.31953e+00 642 2017 9 9.45287e+00 1.11179e+01 828 2017 10 7.37575e+00 3.02274e+00 769 2017 11 6.85277e+00 2.17246e+00 788 2017 12 8.44154e+00 4.76321e+00 793 2018 1 7.86482e+00 6.54134e+00 571 2018 2 2.42616e+01 5.56984e+00 896 2018 3 2.57319e+01 6.01568e+00 1012 2018 4 2.47398e+01 7.32421e+00 994 2018 5 3.00133e+01 3.82760e+00 512 2018 6 2.34309e+01 1.89874e+00 348 2018 7 2.90882e+01 5.17909e+00 448 2018 8 2.58214e+01 3.17446e+00 704 2018 9 1.83277e+01 8.52278e+00 852 2018 10 1.82921e+01 6.96755e+00 1028 2018 11 1.12454e+01 4.60049e+00 509 2018 12 4.71638e+00 4.40243e+00 622 2019 1 6.28901e+00 3.65693e+00 834 2019 2 2.12145e+01 3.64927e+00 727 2019 3 2.19396e+01 3.59435e+00 896 2019 4 1.92708e+01 6.85540e+00 527 2019 5 2.96183e+01 3.59835e+00 1015 2019 6 2.92644e+01 3.77764e+00 497 2019 7 2.28133e+01 2.97632e+00 544 2019 8 1.76171e+01 4.10072e+00 400 2019 9 2.01498e+01 2.34807e+00 704 2019 10 1.36913e+01 6.88716e+00 1146 2019 11 6.04430e+00 2.09352e+00 522 2019 12 1.04781e+01 3.73253e+00 267 2020 1 1.51393e+01 7.13366e+00 764 2020 2 1.66028e+01 4.33410e+00 705 2020 3 2.86599e+01 6.21855e+00 1082 2020 4 3.16893e+01 5.56440e+00 439 2020 5 3.02044e+01 4.38867e+00 726 2020 6 2.92088e+01 4.21268e+00 455 2020 7 2.65067e+01 4.88697e+00 437 2020 8 2.64042e+01 1.68180e+00 320 2020 9 1.52451e+01 3.98657e+00 276 2020 10 1.07246e+01 4.33406e+00 680 2020 11 8.18546e+00 6.15649e+00 1066 2020 12 2.79209e+00 1.20058e+00 730 2021 1 1.01341e+01 3.55090e+00 791 2021 2 1.83748e+01 8.09339e+00 698 2021 3 2.29661e+01 3.72246e+00 935 2021 4 2.47540e+01 5.80005e+00 890 2021 5 2.93167e+01 3.48044e+00 823 2021 6 3.06067e+01 5.12791e+00 301 2021 7 2.29708e+01 8.01974e+00 477 2021 8 2.22737e+01 3.91167e+00 640 2021 9 1.95234e+01 5.44237e+00 547 2021 10 2.09138e+01 4.93686e+00 832 2021 11 6.91739e+00 4.23674e+00 832 2021 12 1.40812e+01 5.81913e+00 896 2022 1 6.98848e+00 6.16834e+00 778 2022 2 1.44611e+01 6.97025e+00 1024 2022 3 1.63065e+01 5.06568e+00 704 2022 4 2.83249e+01 2.85468e+00 384 2022 5 3.28127e+01 4.57647e+00 632 2022 6 3.05528e+01 5.87751e+00 489 2022 7 1.89108e+01 7.46801e+00 392 2022 8 1.69118e+01 3.84869e+00 155 2022 9 1.92304e+01 6.65616e+00 414 2022 10 5.89794e+00 3.43554e+00 1152 2022 11 1.12384e+01 4.43499e+00 587 2022 12 1.00508e+01 2.56606e+00 830 2023 1 1.67929e+01 5.27599e+00 842 2023 2 1.87627e+01 9.51351e+00 1052 2023 3 2.94168e+01 6.46881e+00 965 2023 4 3.46707e+01 4.44172e+00 384 2023 5 2.62807e+01 7.47307e+00 828 2023 6 3.28243e+01 2.76025e+00 533 2023 7 2.02316e+01 8.16872e+00 498 2023 8 6.00816e+00 2.88065e+00 333 2023 9 1.07959e+01 7.52680e+00 662 2023 10 1.48977e+01 3.71509e+00 634 2023 11 1.48870e+01 3.62596e+00 768 2023 12 1.06211e+01 6.10818e+00 312 2024 1 1.29947e+01 7.81726e+00 218 2024 2 1.72468e+01 4.55395e+00 750 2024 3 2.53840e+01 3.21612e+00 556 2024 4 nan nan 0