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 2.29632e+01 9.73641e+00 317 2002 8 2.70966e+01 9.43540e+00 512 2002 9 2.47342e+01 5.66521e+00 385 2002 10 2.20212e+01 9.04397e+00 670 2002 11 1.24601e+01 6.14612e+00 671 2002 12 1.25129e+01 5.97120e+00 584 2003 1 1.09695e+01 8.45087e+00 896 2003 2 1.19866e+01 6.58974e+00 496 2003 3 3.01133e+00 1.17153e+00 64 2003 4 1.96542e+01 2.74350e+01 76 2003 5 6.31624e+00 7.13843e+00 258 2003 6 8.94414e+00 6.59972e+00 227 2003 7 1.73751e+01 1.27694e+01 258 2003 8 1.75441e+01 1.62785e+01 406 2003 9 2.29543e+01 1.51445e+01 440 2003 10 1.16572e+01 1.15399e+01 938 2003 11 8.65129e+00 8.18521e+00 1079 2003 12 1.48751e+01 9.37857e+00 749 2004 1 1.17788e+01 7.42234e+00 877 2004 2 1.38461e+01 6.71372e+00 383 2004 3 7.14108e+00 8.10082e+00 742 2004 4 1.35751e+01 5.30914e+00 320 2004 5 1.90930e+01 7.03418e+00 695 2004 6 2.43756e+01 7.33727e+00 483 2004 7 1.71169e+01 1.05262e+01 444 2004 8 2.01992e+01 9.02849e+00 513 2004 9 1.94328e+01 1.97189e+01 164 2004 10 2.84467e-01 2.87557e-01 128 2004 11 1.60543e+00 4.37528e+00 223 2004 12 5.51196e-01 5.41998e-01 380 2005 1 4.79330e+00 5.31017e+00 783 2005 2 2.59070e+00 3.44428e+00 521 2005 3 4.15213e+00 4.54141e+00 447 2005 4 2.02245e+01 3.22271e+01 274 2005 5 3.68033e+01 3.68630e+00 79 2005 6 1.84405e+01 1.33395e+01 315 2005 7 1.68296e+01 6.69742e+00 316 2005 8 2.36876e+00 2.56762e+00 180 2005 9 1.17195e+01 9.88598e+00 320 2005 10 1.64535e+01 1.14225e+01 914 2005 11 9.09459e+00 5.73296e+00 999 2005 12 8.93235e+00 6.43561e+00 1024 2006 1 6.13660e+00 5.90377e+00 586 2006 2 3.92802e+00 4.06062e+00 755 2006 3 8.15238e+00 1.10452e+01 1135 2006 4 5.28417e+00 4.00608e+00 230 2006 5 1.85730e+01 9.20230e+00 493 2006 6 2.20635e+01 8.95093e+00 338 2006 7 1.59765e+01 8.85250e+00 294 2006 8 1.75548e+01 6.22656e+00 502 2006 9 2.21322e+01 6.61617e+00 881 2006 10 2.11003e+01 1.01603e+01 957 2006 11 1.84929e+01 9.62986e+00 762 2006 12 2.17308e+01 9.42953e+00 571 2007 1 2.30953e+01 8.53348e+00 490 2007 2 2.29783e+01 1.04065e+01 723 2007 3 2.09724e+01 9.91234e+00 1024 2007 4 2.55183e+01 1.40435e+01 525 2007 5 2.74385e+01 1.02337e+01 296 2007 6 2.39166e+01 7.96704e+00 320 2007 7 1.49187e+01 7.00440e+00 494 2007 8 2.41118e+01 5.23571e+00 541 2007 9 2.18067e+01 8.52647e+00 544 2007 10 1.97402e+01 7.37891e+00 714 2007 11 1.91551e+01 9.80946e+00 1030 2007 12 1.51585e+01 8.17891e+00 828 2008 1 1.84996e+01 1.06991e+01 768 2008 2 1.95494e+01 9.37989e+00 840 2008 3 2.68091e+00 3.94584e+00 633 2008 4 1.51308e+01 1.42585e+01 670 2008 5 9.35186e+00 7.55222e+00 512 2008 6 2.19562e+01 1.38453e+01 524 2008 7 1.17371e+01 6.83964e+00 405 2008 8 1.33695e+01 7.83869e+00 326 2008 9 2.50619e+01 1.73689e+01 440 2008 10 7.99090e+00 5.80595e+00 985 2008 11 1.35591e+01 9.00776e+00 930 2008 12 6.62806e+00 5.96465e+00 1029 2009 1 1.03070e+01 5.44063e+00 576 2009 2 1.14695e+01 5.45110e+00 907 2009 3 1.62635e+01 8.70051e+00 905 2009 4 1.28030e+01 6.93367e+00 331 2009 5 1.46735e+01 9.13307e+00 207 2009 6 2.36274e+01 1.21424e+01 469 2009 7 2.98401e+01 1.86535e+01 111 2009 8 1.99588e+01 1.12868e+01 539 2009 9 2.28883e+01 1.16242e+01 675 2009 10 1.65722e+01 1.07533e+01 800 2009 11 1.65946e+01 8.47033e+00 826 2009 12 7.84579e+00 5.33499e+00 192 2010 1 9.75189e+00 6.69094e+00 947 2010 2 3.04405e+00 5.12270e+00 689 2010 3 1.96047e+00 1.86726e+00 869 2010 4 2.02933e+00 1.52913e+00 201 2010 5 1.19203e+01 7.60134e+00 497 2010 6 1.74838e+01 3.89184e+00 594 2010 7 1.89985e+01 8.15196e+00 440 2010 8 1.65222e+01 3.79212e+00 257 2010 9 1.79974e+01 9.47132e+00 755 2010 10 1.78457e+01 8.24878e+00 1536 2010 11 1.47267e+01 7.93324e+00 1152 2010 12 1.97167e+01 1.40913e+01 1024 2011 1 1.98842e+01 9.34305e+00 704 2011 2 2.64193e+01 5.50112e+00 704 2011 3 2.73566e+01 8.91865e+00 872 2011 4 2.08627e+01 1.17657e+01 938 2011 5 2.09337e+01 8.53749e+00 701 2011 6 1.91155e+01 9.51143e+00 256 2011 7 2.38906e+01 5.92152e+00 512 2011 8 2.90257e+01 6.49851e+00 305 2011 9 2.09053e+01 8.96140e+00 707 2011 10 2.20235e+01 1.10283e+01 898 2011 11 2.58724e+01 9.23781e+00 985 2011 12 2.58710e+01 8.74736e+00 921 2012 1 3.16967e+01 9.91630e+00 896 2012 2 3.16721e+01 6.64270e+00 297 2012 3 3.12343e+01 1.09371e+01 891 2012 4 2.52713e+01 9.05333e+00 911 2012 5 2.48452e+01 8.35694e+00 441 2012 6 1.60577e+01 8.11557e+00 192 2012 7 1.81213e+01 1.57015e+01 254 2012 8 7.56622e+00 7.96725e+00 256 2012 9 1.09080e+01 8.87349e+00 200 2012 10 9.02075e+00 2.00793e+01 538 2012 11 1.51707e+01 1.09071e+01 832 2012 12 6.32762e+00 4.92956e+00 754 2013 1 1.32301e+01 7.05497e+00 704 2013 2 2.19034e+01 8.22495e+00 448 2013 3 1.04788e+01 9.24701e+00 746 2013 4 5.83082e+00 4.49633e+00 438 2013 5 1.36109e+01 1.24539e+01 462 2013 6 1.74715e+01 1.00221e+01 478 2013 7 4.99328e+00 2.64222e+00 64 2013 8 3.03153e+01 1.66776e+01 227 2013 9 2.33295e+01 1.86656e+01 326 2013 10 1.33816e+01 1.23822e+01 785 2013 11 7.87711e+00 5.71428e+00 320 2013 12 1.03359e+01 5.58643e+00 768 2014 1 5.06387e+00 4.87726e+00 512 2014 2 4.68370e+00 3.43649e+00 656 2014 3 6.12177e+00 7.33255e+00 509 2014 4 1.49667e+00 1.35999e+00 177 2014 5 2.78825e+01 2.89501e+01 94 2014 6 1.72342e+01 2.22114e+01 326 2014 7 1.28562e+01 1.07247e+01 448 2014 8 1.47078e+01 4.76272e+00 342 2014 9 3.94745e+01 1.86332e+01 222 2014 10 7.10827e+00 1.02291e+01 1168 2014 11 1.43323e+01 7.13720e+00 896 2014 12 1.60661e+01 9.73648e+00 779 2015 1 7.24319e+00 7.34737e+00 681 2015 2 8.42697e+00 9.23096e+00 727 2015 3 4.94807e+00 5.75065e+00 419 2015 4 3.84422e+01 3.39674e+01 173 2015 5 1.79563e+01 1.08307e+01 635 2015 6 2.98437e+01 7.70994e+00 266 2015 7 1.79839e+01 4.07133e+00 135 2015 8 1.45306e+01 8.99244e+00 256 2015 9 1.80583e+01 9.55548e+00 134 2015 10 8.64952e+00 6.18507e+00 847 2015 11 8.60844e+00 7.45556e+00 859 2015 12 1.17895e+01 6.44649e+00 456 2016 1 8.66040e+00 7.91857e+00 670 2016 2 5.60922e+00 6.59526e+00 1146 2016 3 8.60472e+00 5.57212e+00 648 2016 4 2.15530e+01 2.37190e+01 383 2016 5 1.25217e+01 8.87681e+00 643 2016 6 1.87438e+01 1.08728e+01 694 2016 7 1.95964e+01 4.50260e+00 820 2016 8 2.03040e+01 7.51651e+00 674 2016 9 1.12715e+01 7.94798e+00 602 2016 10 1.59519e+01 1.14081e+01 1003 2016 11 1.43473e+01 5.60867e+00 960 2016 12 1.90789e+01 7.53315e+00 890 2017 1 1.51921e+01 1.06115e+01 624 2017 2 7.39279e+00 8.40417e+00 757 2017 3 1.39060e+01 1.01794e+01 1024 2017 4 2.23703e+01 5.44366e+00 768 2017 5 2.05355e+01 8.20258e+00 518 2017 6 2.67339e+01 7.21719e+00 277 2017 7 6.49601e+00 7.76075e+00 73 2017 8 1.47387e+01 1.32659e+01 693 2017 9 2.20463e+01 2.35492e+01 328 2017 10 9.68130e+00 1.42391e+01 362 2017 11 8.63302e+00 7.19140e+00 1002 2017 12 1.25017e+01 6.62332e+00 576 2018 1 1.79576e+01 6.65876e+00 704 2018 2 2.36477e+01 8.55175e+00 620 2018 3 2.19111e+01 1.12523e+01 942 2018 4 1.79014e+01 1.10106e+01 640 2018 5 2.31830e+01 1.19032e+01 402 2018 6 1.16339e+01 9.49150e+00 199 2018 7 4.14999e+01 1.53790e+01 126 2018 8 2.54312e+01 1.23881e+01 483 2018 9 2.36051e+01 1.59876e+01 1123 2018 10 1.05830e+01 8.39955e+00 1153 2018 11 1.11873e+01 1.00605e+01 431 2018 12 5.49937e+00 6.26127e+00 503 2019 1 3.24781e+00 4.96867e+00 376 2019 2 8.41705e+00 1.11449e+01 245 2019 3 6.39110e+00 7.61457e+00 821 2019 4 4.85999e+00 5.38750e+00 493 2019 5 1.60536e+01 9.29385e+00 703 2019 6 1.41627e+01 7.43585e+00 260 2019 7 2.55505e+01 8.04652e+00 268 2019 8 2.11149e+01 1.72100e+01 409 2019 9 1.62378e+01 1.09750e+01 896 2019 10 1.61397e+01 1.22083e+01 756 2019 11 1.60780e+01 6.72455e+00 704 2019 12 1.24733e+01 8.58731e+00 466 2020 1 1.58561e+01 7.79695e+00 640 2020 2 1.14915e+01 6.78672e+00 580 2020 3 1.17390e+01 1.19302e+01 626 2020 4 3.89356e+00 3.29170e+00 428 2020 5 9.56571e+00 8.83784e+00 443 2020 6 1.17562e+01 1.17020e+01 273 2020 7 2.74316e+01 1.55185e+01 356 2020 8 1.88463e+00 3.14150e+00 192 2020 9 1.46194e+01 1.61230e+01 355 2020 10 1.02576e+01 8.91662e+00 787 2020 11 2.56787e+00 3.08643e+00 882 2020 12 6.08326e+00 4.77850e+00 866 2021 1 3.94659e+00 3.74758e+00 511 2021 2 2.96312e+00 3.30654e+00 463 2021 3 1.84579e+00 7.40725e+00 155 2021 4 5.31161e+00 8.92525e+00 320 2021 5 7.40191e+00 4.98459e+00 766 2021 6 2.68484e+01 1.23158e+01 192 2021 7 3.12880e+01 1.95878e+01 192 2021 8 3.37668e+01 2.08093e+01 320 2021 9 1.84765e+01 2.55913e+01 328 2021 10 9.97602e+00 1.31752e+01 335 2021 11 4.13845e+00 4.37402e+00 768 2021 12 6.16361e+00 8.86093e+00 768 2022 1 3.20036e+00 3.18718e+00 847 2022 2 1.16114e+01 6.22123e+00 882 2022 3 7.74017e+00 5.91969e+00 899 2022 4 5.43043e+00 1.80413e+00 85 2022 5 9.58412e+00 7.32860e+00 425 2022 6 1.66502e+01 9.21006e+00 382 2022 7 1.90838e+01 8.64851e+00 547 2022 8 2.14931e+01 6.74503e+00 523 2022 9 1.34562e+01 1.06278e+01 221 2022 10 1.11253e+01 6.88972e+00 1156 2022 11 1.25787e+01 7.92512e+00 457 2022 12 1.35346e+01 6.59638e+00 789 2023 1 1.94714e+01 8.90111e+00 850 2023 2 1.87209e+01 8.48607e+00 710 2023 3 1.78832e+01 8.36586e+00 609 2023 4 2.02889e+01 1.22526e+01 384 2023 5 1.83212e+01 1.04085e+01 384 2023 6 2.07463e+01 6.66204e+00 383 2023 7 1.64405e+01 1.13730e+01 510 2023 8 1.90950e+01 1.54003e+01 456 2023 9 1.77388e+01 1.79872e+01 460 2023 10 1.45870e+01 1.02605e+01 638 2023 11 9.48514e+00 6.63328e+00 640 2023 12 9.05393e+00 1.03138e+01 154 2024 1 1.18324e-01 1.65744e-01 291 2024 2 2.22126e+00 3.47168e+00 663 2024 3 8.83223e+00 1.10514e+01 512 2024 4 nan nan 0