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 nan nan 0 2002 8 8.12993e+00 1.57790e+01 78 2002 9 4.02257e+01 2.01614e+01 23 2002 10 1.61905e+01 9.73921e+00 845 2002 11 1.46779e+01 6.30429e+00 762 2002 12 2.24885e+01 1.62817e+01 395 2003 1 2.03814e+01 1.00374e+01 427 2003 2 1.32532e+01 1.99680e+00 391 2003 3 2.65251e+01 2.24911e+01 226 2003 4 1.75507e+01 5.06760e+00 397 2003 5 2.07075e+01 9.58562e+00 497 2003 6 1.77344e+01 4.57222e+00 64 2003 7 1.19585e+01 0.00000e+00 1 2003 8 1.68727e+00 1.23677e+00 54 2003 9 nan nan 0 2003 10 2.14466e+01 1.31562e+01 80 2003 11 1.81254e+01 8.51444e+00 405 2003 12 1.50064e+01 6.79039e+00 671 2004 1 1.51389e+01 9.35230e+00 866 2004 2 1.23370e+01 4.81700e+00 614 2004 3 1.92816e+01 1.58657e+01 578 2004 4 8.95477e+00 1.81843e+00 375 2004 5 1.63823e+01 7.02918e+00 446 2004 6 1.06441e+01 2.73480e+00 359 2004 7 1.24324e+01 4.60064e+00 237 2004 8 2.60216e+01 2.04424e+01 55 2004 9 2.66917e+01 1.49333e+01 57 2004 10 2.22818e+01 1.72050e+01 143 2004 11 9.09004e+00 7.90348e+00 406 2004 12 1.40653e+01 1.02876e+01 441 2005 1 1.02208e+01 4.26440e+00 778 2005 2 1.70959e+01 1.08304e+01 765 2005 3 1.79982e+01 5.97140e+00 403 2005 4 1.48559e+01 1.00170e+01 533 2005 5 1.91471e+01 1.66322e+01 335 2005 6 nan nan 0 2005 7 5.59173e+00 3.66187e+00 109 2005 8 2.42572e+01 1.23589e+01 185 2005 9 2.46787e+01 1.81505e+01 339 2005 10 1.42166e+01 6.40180e+00 516 2005 11 1.23945e+01 5.39583e+00 431 2005 12 1.36645e+01 4.06930e+00 727 2006 1 1.08401e+01 3.72342e+00 523 2006 2 1.05957e+01 3.57380e+00 1022 2006 3 8.71060e+00 2.28413e+00 957 2006 4 9.16396e+00 2.51668e+00 432 2006 5 1.42055e+01 7.34284e+00 569 2006 6 1.01617e+01 4.16072e+00 428 2006 7 1.30256e+01 3.88324e+00 232 2006 8 1.24746e+01 5.23984e+00 163 2006 9 4.28793e+01 2.37933e+01 72 2006 10 3.57031e+01 2.52087e+01 122 2006 11 1.42852e+01 9.69521e+00 450 2006 12 1.48403e+01 5.23348e+00 238 2007 1 1.00132e+01 2.26277e+00 442 2007 2 1.09855e+01 3.96771e+00 651 2007 3 1.17944e+01 7.52898e+00 323 2007 4 1.20061e+01 7.48130e+00 366 2007 5 6.02243e+00 9.17013e-01 192 2007 6 9.88540e+00 4.27458e+00 222 2007 7 1.24920e+01 3.82207e+00 384 2007 8 2.92109e+01 1.60568e+01 356 2007 9 1.69776e+01 1.00467e+01 522 2007 10 1.48095e+01 1.18527e+01 366 2007 11 2.25340e+01 1.77401e+01 738 2007 12 1.26057e+01 5.12594e+00 698 2008 1 1.00089e+01 3.18920e+00 693 2008 2 1.07786e+01 5.41538e+00 743 2008 3 6.29440e+00 1.11912e+00 554 2008 4 7.72007e+00 3.01210e+00 402 2008 5 6.61517e+00 2.53182e+00 400 2008 6 7.70409e+00 3.98429e+00 230 2008 7 1.25317e+01 6.74183e+00 313 2008 8 1.26598e+01 2.78260e+00 128 2008 9 2.74064e+00 3.96728e+00 7 2008 10 2.09069e+01 1.40395e+01 531 2008 11 1.52422e+01 6.69182e+00 1027 2008 12 1.08247e+01 3.78093e+00 1130 2009 1 7.49115e+00 1.89572e+00 816 2009 2 6.27646e+00 1.38195e+00 891 2009 3 5.84788e+00 1.98812e+00 675 2009 4 7.00637e+00 1.83933e+00 384 2009 5 1.03348e+01 2.01307e+00 342 2009 6 2.14795e+01 1.06483e+01 128 2009 7 2.62831e+01 1.76888e+01 281 2009 8 1.71466e+01 5.54702e+00 243 2009 9 3.20900e+01 1.87737e+01 110 2009 10 2.73493e+01 1.69906e+01 319 2009 11 1.49995e+01 6.49712e+00 505 2009 12 1.30170e+01 2.37840e+00 384 2010 1 1.13869e+01 4.19994e+00 530 2010 2 7.28476e+00 1.36405e+00 576 2010 3 9.17837e+00 4.51668e+00 688 2010 4 1.86622e+01 9.55144e+00 191 2010 5 1.33553e+01 9.30573e+00 584 2010 6 1.35325e+01 6.21363e+00 458 2010 7 1.79467e+01 2.30998e+01 183 2010 8 1.56431e+01 1.63242e+01 285 2010 9 1.62435e+01 2.23550e+01 96 2010 10 1.81038e+01 1.41075e+01 789 2010 11 1.94374e+01 1.13096e+01 882 2010 12 1.19900e+01 5.67722e+00 1072 2011 1 9.58503e+00 5.06480e+00 577 2011 2 6.20688e+00 1.73447e+00 710 2011 3 5.63523e+00 1.09054e+00 1020 2011 4 6.04308e+00 9.30901e-01 526 2011 5 8.07750e+00 2.93965e+00 552 2011 6 8.17459e+00 2.05127e+00 381 2011 7 2.23455e+01 1.56995e+01 330 2011 8 1.14447e+01 5.18800e+00 120 2011 9 2.49883e+01 1.82797e+01 204 2011 10 1.75011e+01 3.72042e+00 385 2011 11 1.45443e+01 9.14504e+00 740 2011 12 1.40243e+01 9.58042e+00 922 2012 1 8.08941e+00 1.94136e+00 995 2012 2 6.14014e+00 2.42190e+00 759 2012 3 7.73581e+00 3.48480e+00 480 2012 4 1.29896e+01 9.86918e+00 412 2012 5 6.13941e+00 1.75801e+00 435 2012 6 2.55315e+01 4.32146e+00 110 2012 7 1.50377e+01 8.34929e+00 256 2012 8 1.08187e+01 1.08718e+01 148 2012 9 2.07929e+01 1.52038e+01 170 2012 10 2.43680e+01 1.11630e+01 112 2012 11 1.39457e+01 6.23564e+00 739 2012 12 1.29650e+01 8.00499e+00 542 2013 1 1.21821e+01 2.27926e+00 622 2013 2 1.19890e+01 3.56597e+00 827 2013 3 8.94324e+00 5.85809e+00 661 2013 4 8.30200e+00 2.52665e+00 374 2013 5 9.55688e+00 2.66869e+00 573 2013 6 2.39863e+01 2.11610e+01 264 2013 7 2.79693e+01 1.47832e+01 67 2013 8 1.20880e+01 3.30831e+00 32 2013 9 nan nan 0 2013 10 2.23319e+01 1.55801e+01 134 2013 11 1.99613e+01 1.86414e+01 276 2013 12 1.30007e+01 4.20976e+00 568 2014 1 9.81908e+00 3.26792e+00 734 2014 2 1.01530e+01 2.58165e+00 679 2014 3 9.76649e+00 2.42329e+00 714 2014 4 1.07319e+01 5.93139e+00 406 2014 5 1.40922e+01 5.27666e+00 447 2014 6 1.13851e+01 3.05323e+00 285 2014 7 1.27866e+01 5.67561e+00 155 2014 8 1.35791e+01 8.81187e+00 369 2014 9 2.57656e+01 1.80153e+01 184 2014 10 1.31356e+00 2.30876e-01 27 2014 11 2.42797e+01 2.21919e+01 446 2014 12 2.43162e+01 2.16207e+01 622 2015 1 1.15289e+01 3.64323e+00 558 2015 2 1.09657e+01 3.93810e+00 749 2015 3 1.33441e+01 5.26970e+00 686 2015 4 1.35414e+01 2.98512e+00 215 2015 5 1.30713e+01 3.62711e+00 326 2015 6 1.56762e+01 5.90216e+00 318 2015 7 1.69586e+01 3.21674e+00 128 2015 8 2.66779e+01 1.67641e+01 314 2015 9 4.40662e+01 2.20622e+01 37 2015 10 1.90536e+01 1.75118e+01 164 2015 11 1.32751e+01 1.69277e+01 153 2015 12 2.32441e+01 2.22093e+01 156 2016 1 1.74333e+01 1.76632e+01 371 2016 2 2.07892e+01 1.25351e+01 636 2016 3 9.35194e+00 2.11701e+00 383 2016 4 1.22306e+01 7.25255e+00 336 2016 5 1.76487e+01 1.98284e+01 410 2016 6 1.45389e+01 9.24462e+00 319 2016 7 2.26258e+01 1.61283e+01 140 2016 8 1.18266e+01 2.58636e+01 56 2016 9 5.96402e+00 6.09576e+00 133 2016 10 2.07816e+01 1.09041e+01 380 2016 11 2.16918e+01 8.83308e+00 505 2016 12 1.88187e+01 1.06365e+01 629 2017 1 1.57870e+01 7.93339e+00 698 2017 2 1.05913e+01 6.78359e+00 1036 2017 3 7.23941e+00 2.23844e+00 661 2017 4 5.42454e+00 1.41918e+00 299 2017 5 8.66698e+00 2.37606e+00 372 2017 6 nan nan 0 2017 7 3.24204e+01 2.22234e+01 83 2017 8 1.68576e+01 4.62622e+00 80 2017 9 nan nan 0 2017 10 2.59200e+01 7.38682e+00 67 2017 11 1.98371e+01 1.66881e+01 451 2017 12 2.11073e+01 1.36224e+01 899 2018 1 1.27298e+01 7.89912e+00 527 2018 2 1.26704e+01 6.79939e+00 484 2018 3 1.07727e+01 6.16117e+00 978 2018 4 1.05020e+01 8.72698e+00 747 2018 5 1.11994e+01 2.73415e+00 190 2018 6 1.60939e+01 3.41932e+00 72 2018 7 9.01551e+00 1.25338e+01 66 2018 8 nan nan 0 2018 9 nan nan 0 2018 10 3.84590e+01 2.91174e+01 62 2018 11 2.19032e+01 1.83024e+01 284 2018 12 2.34968e+01 1.99645e+01 453 2019 1 1.39005e+01 9.65546e+00 672 2019 2 1.54021e+01 6.41826e+00 453 2019 3 1.45547e+01 5.15852e+00 654 2019 4 1.45398e+01 8.41597e+00 496 2019 5 1.03196e+01 4.29908e+00 465 2019 6 1.16559e+01 3.34038e+00 356 2019 7 1.67070e+01 1.23069e+01 375 2019 8 2.66488e+01 2.44563e+01 32 2019 9 2.75219e+01 1.74397e+01 222 2019 10 2.30878e+01 1.25169e+01 429 2019 11 2.32255e+01 2.30081e+01 336 2019 12 1.52375e+01 1.57568e+01 429 2020 1 1.18190e+01 3.24593e+00 706 2020 2 9.14264e+00 2.76968e+00 681 2020 3 8.90821e+00 2.55501e+00 573 2020 4 9.20776e+00 2.17476e+00 320 2020 5 9.60500e+00 5.20299e+00 512 2020 6 1.67609e+01 4.57901e+00 395 2020 7 3.38397e+01 2.08158e+01 114 2020 8 1.91646e+01 7.32258e+00 335 2020 9 nan nan 0 2020 10 2.74620e+00 2.76344e-01 4 2020 11 2.07332e+01 2.13950e+01 71 2020 12 2.47941e+01 1.73883e+01 317 2021 1 3.33270e+01 2.37880e+01 430 2021 2 1.15485e+01 4.40010e+00 655 2021 3 1.30937e+01 6.90653e+00 384 2021 4 1.34652e+01 6.89652e+00 767 2021 5 1.01528e+01 4.37564e+00 527 2021 6 8.25686e+00 2.80892e+00 82 2021 7 1.90231e+01 8.48472e+00 315 2021 8 2.68049e+01 1.58052e+01 114 2021 9 1.94607e+01 3.70363e+00 66 2021 10 3.70290e+01 2.00266e+01 101 2021 11 3.29589e+01 2.39393e+01 290 2021 12 1.90331e+01 1.35048e+01 830 2022 1 1.26939e+01 4.16038e+00 724 2022 2 1.06952e+01 4.02035e+00 688 2022 3 8.29539e+00 2.59513e+00 634 2022 4 5.49476e+00 6.80507e-01 64 2022 5 1.31195e+01 1.24881e+01 576 2022 6 1.03864e+01 5.80629e+00 166 2022 7 1.37796e+01 3.91957e+00 307 2022 8 2.83432e+01 1.79289e+01 221 2022 9 1.45468e+01 1.01604e+01 186 2022 10 2.83007e+01 1.59896e+01 54 2022 11 1.70523e+01 9.75848e+00 295 2022 12 1.52979e+01 1.77700e+01 466 2023 1 1.17159e+01 6.72235e+00 892 2023 2 1.03550e+01 2.94104e+00 1086 2023 3 8.64076e+00 4.48533e+00 757 2023 4 7.91464e+00 3.30584e+00 434 2023 5 9.59198e+00 4.33218e+00 617 2023 6 1.46147e+01 5.77347e+00 245 2023 7 1.39972e+01 3.77668e+00 256 2023 8 1.24192e+01 5.90022e+00 302 2023 9 1.25171e+01 9.62689e+00 519 2023 10 1.88048e+01 1.28932e+01 248 2023 11 1.76277e+01 1.65205e+01 510 2023 12 1.40429e+01 1.15399e+01 221 2024 1 1.81523e+01 1.28965e+01 263 2024 2 1.34986e+01 6.14312e+00 938 2024 3 1.52268e+01 5.94890e+00 519 2024 4 nan nan 0