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 2.01814e+01 2.53623e+00 165 2002 8 2.38463e+01 7.43523e+00 407 2002 9 2.09437e+01 6.35445e+00 575 2002 10 1.86370e+01 6.92423e+00 720 2002 11 1.37734e+01 5.67768e+00 1023 2002 12 6.93654e+00 3.51142e+00 806 2003 1 5.99892e+00 3.23174e+00 1023 2003 2 1.38537e+01 5.27857e+00 640 2003 3 1.35008e-01 4.88508e-01 81 2003 4 1.20370e+01 1.57898e+01 523 2003 5 1.86373e+01 2.36304e+01 292 2003 6 2.35666e+01 1.80479e+01 363 2003 7 3.13480e+00 9.93524e-01 64 2003 8 1.63034e+01 1.92673e+01 284 2003 9 2.10093e+01 1.24806e+01 576 2003 10 1.33711e+01 8.33970e+00 902 2003 11 1.33864e+01 5.04241e+00 1058 2003 12 9.94640e+00 6.47489e+00 971 2004 1 8.68632e+00 4.05310e+00 580 2004 2 1.93386e+01 2.67792e+00 322 2004 3 8.82568e+00 6.30754e+00 708 2004 4 1.04240e+01 6.04760e+00 666 2004 5 1.26160e+01 4.81463e+00 647 2004 6 1.28366e+01 7.80145e+00 485 2004 7 1.00073e+01 3.36590e+00 375 2004 8 2.06577e+01 6.84557e+00 406 2004 9 1.11043e+01 7.44848e+00 543 2004 10 5.17063e+00 9.01773e+00 259 2004 11 5.51382e-01 1.45066e+00 502 2004 12 7.50375e-01 1.07518e+00 479 2005 1 6.68260e+00 7.04402e+00 763 2005 2 3.35004e+00 3.54121e+00 638 2005 3 6.27383e+00 3.44684e+00 577 2005 4 8.34879e+00 9.86790e+00 256 2005 5 1.65290e+01 1.23053e+01 443 2005 6 1.26009e+01 1.56825e+01 486 2005 7 7.38849e+00 8.40071e+00 396 2005 8 1.14986e+01 1.19214e+01 248 2005 9 1.18869e+01 6.59769e+00 384 2005 10 1.11456e+01 7.64467e+00 928 2005 11 1.46389e+01 4.96152e+00 1216 2005 12 1.47470e+01 4.28124e+00 960 2006 1 1.16382e+01 5.82585e+00 964 2006 2 8.06673e+00 4.80400e+00 832 2006 3 4.57376e+00 3.43068e+00 1032 2006 4 6.36409e+00 5.09109e+00 574 2006 5 2.04857e+01 8.34894e+00 822 2006 6 1.86025e+01 7.27967e+00 346 2006 7 1.81489e+01 8.39345e+00 561 2006 8 2.12684e+01 6.87277e+00 485 2006 9 1.36758e+01 6.18368e+00 643 2006 10 1.84082e+01 7.37998e+00 1132 2006 11 1.94480e+01 4.99494e+00 985 2006 12 1.90142e+01 8.12072e+00 628 2007 1 2.38448e+01 5.96992e+00 571 2007 2 2.11660e+01 5.10554e+00 945 2007 3 2.26895e+01 3.71312e+00 1206 2007 4 2.05347e+01 6.98317e+00 800 2007 5 2.40599e+01 3.26179e+00 381 2007 6 2.33262e+01 3.86541e+00 349 2007 7 1.73149e+01 5.18851e+00 492 2007 8 1.76475e+01 6.12993e+00 512 2007 9 2.14129e+01 5.41492e+00 670 2007 10 2.76692e+01 4.68855e+00 677 2007 11 2.72246e+01 2.58923e+00 1107 2007 12 2.72461e+01 8.39144e+00 797 2008 1 2.84327e+01 5.12974e+00 965 2008 2 3.11894e+01 4.71832e+00 1117 2008 3 1.67250e+01 7.96521e+00 1042 2008 4 1.39513e+01 1.86483e+01 715 2008 5 9.57739e+00 7.25105e+00 740 2008 6 1.74459e+01 1.10337e+01 638 2008 7 2.45760e+01 7.08755e+00 379 2008 8 1.56643e+01 1.54670e+00 189 2008 9 1.30438e+01 9.91363e+00 828 2008 10 1.27903e+01 5.17028e+00 1147 2008 11 1.20866e+01 5.91194e+00 1020 2008 12 5.66736e+00 5.90105e+00 837 2009 1 7.87569e+00 5.64957e+00 704 2009 2 9.23357e+00 3.71241e+00 945 2009 3 1.92261e+01 6.12247e+00 897 2009 4 1.04949e+01 6.78780e+00 679 2009 5 1.50337e+01 1.09868e+01 222 2009 6 2.02780e+01 1.36570e+01 503 2009 7 2.22230e+01 5.70964e+00 282 2009 8 1.33518e+01 8.45436e+00 506 2009 9 1.88635e+01 1.11598e+01 802 2009 10 1.61165e+01 5.84824e+00 949 2009 11 9.91222e+00 5.78253e+00 623 2009 12 8.95947e+00 3.61585e+00 192 2010 1 2.59479e+00 2.35133e+00 800 2010 2 2.72773e+00 5.16063e+00 893 2010 3 2.09103e+00 2.10583e+00 866 2010 4 1.99291e+00 3.25377e+00 553 2010 5 1.66825e+01 1.53413e+01 690 2010 6 1.62625e+01 8.28111e+00 583 2010 7 1.52108e+01 7.59916e+00 456 2010 8 1.95300e+01 3.17717e+00 252 2010 9 1.54957e+01 7.23710e+00 767 2010 10 1.63118e+01 5.09319e+00 1546 2010 11 2.06647e+01 4.54519e+00 1158 2010 12 1.67890e+01 7.60272e+00 1167 2011 1 1.80213e+01 3.26007e+00 768 2011 2 2.46888e+01 3.43776e+00 598 2011 3 1.92057e+01 2.58337e+00 865 2011 4 1.24935e+01 6.18565e+00 943 2011 5 1.59902e+01 9.12137e+00 747 2011 6 2.06001e+01 2.42192e+00 303 2011 7 1.70006e+01 4.28470e+00 320 2011 8 1.99202e+01 6.82505e+00 699 2011 9 2.21836e+01 5.64325e+00 898 2011 10 2.25251e+01 5.99079e+00 1081 2011 11 2.77811e+01 6.01642e+00 1088 2011 12 2.77302e+01 5.06364e+00 1085 2012 1 2.15910e+01 8.55305e+00 1152 2012 2 2.70671e+01 3.09459e+00 278 2012 3 2.52967e+01 6.63608e+00 958 2012 4 2.13172e+01 3.89374e+00 945 2012 5 2.15213e+01 3.54675e+00 576 2012 6 1.20959e+01 7.13941e+00 320 2012 7 8.69950e+00 1.31265e+01 299 2012 8 1.26752e+01 5.18810e+00 304 2012 9 7.18333e+00 7.42934e+00 578 2012 10 8.77535e+00 8.70571e+00 740 2012 11 7.07245e+00 4.83924e+00 1115 2012 12 7.82653e+00 3.31933e+00 512 2013 1 1.41506e+01 7.08619e+00 572 2013 2 1.69160e+01 4.56629e+00 650 2013 3 7.22507e+00 7.50242e+00 868 2013 4 1.46989e+01 1.13241e+01 347 2013 5 7.89119e+00 3.70007e+00 507 2013 6 2.02878e+01 1.03064e+01 378 2013 7 5.33296e+00 1.58730e+00 129 2013 8 2.62098e+01 2.31701e+01 260 2013 9 1.79144e+01 1.70608e+01 634 2013 10 1.30073e+01 1.21721e+01 811 2013 11 1.26345e+01 7.71586e+00 649 2013 12 2.49496e+01 4.91867e+00 856 2014 1 1.39179e+01 3.30406e+00 498 2014 2 5.27359e+00 3.16922e+00 693 2014 3 4.04113e+00 4.16980e+00 838 2014 4 2.99157e+00 2.37920e+00 369 2014 5 1.94910e+01 1.52919e+01 178 2014 6 2.56665e+01 1.99939e+01 325 2014 7 9.67165e+00 7.48395e+00 423 2014 8 2.01767e+01 6.12851e+00 453 2014 9 2.03581e+01 4.92945e+00 448 2014 10 1.37966e+01 7.43660e+00 1342 2014 11 1.77710e+01 5.57320e+00 1024 2014 12 2.16684e+01 9.16330e+00 917 2015 1 1.91535e+01 9.26097e+00 832 2015 2 9.95793e+00 6.61561e+00 824 2015 3 5.69606e+00 6.31946e+00 391 2015 4 4.11805e+00 4.26117e+00 246 2015 5 8.21319e+00 1.22501e+01 722 2015 6 1.71094e+01 1.05688e+01 626 2015 7 2.23105e+01 1.14563e+01 351 2015 8 1.27541e+01 3.49605e+00 423 2015 9 1.16809e+01 7.12869e+00 295 2015 10 1.12962e+01 5.50368e+00 914 2015 11 1.31785e+01 6.47949e+00 786 2015 12 1.60234e+01 5.55051e+00 512 2016 1 1.59835e+01 5.54446e+00 664 2016 2 6.34103e+00 5.53653e+00 1243 2016 3 5.94726e+00 3.57007e+00 705 2016 4 8.69530e+00 1.07270e+01 558 2016 5 9.35793e+00 7.42014e+00 698 2016 6 1.85149e+01 1.03874e+01 575 2016 7 1.25933e+01 7.47052e+00 862 2016 8 1.04595e+01 4.05060e+00 647 2016 9 1.52000e+01 1.09674e+01 893 2016 10 1.49003e+01 8.20637e+00 972 2016 11 2.09503e+01 7.75574e+00 953 2016 12 2.33489e+01 4.69825e+00 805 2017 1 1.98702e+01 7.75454e+00 789 2017 2 1.55613e+01 4.00117e+00 1152 2017 3 1.86515e+01 5.80847e+00 1006 2017 4 1.55401e+01 5.80899e+00 663 2017 5 1.45773e+01 5.81148e+00 523 2017 6 2.25861e+01 8.63316e+00 379 2017 7 1.24104e+01 1.02488e+01 358 2017 8 1.69595e+01 1.01965e+01 512 2017 9 1.30745e+01 9.65673e+00 818 2017 10 4.37950e+00 3.63465e+00 838 2017 11 2.09239e+01 7.37573e+00 1061 2017 12 2.11844e+01 8.15968e+00 704 2018 1 1.58830e+01 4.40544e+00 854 2018 2 1.20882e+01 7.16658e+00 509 2018 3 1.47706e+01 9.02897e+00 906 2018 4 1.28734e+01 6.55850e+00 704 2018 5 9.21382e+00 4.84249e+00 508 2018 6 1.73253e+01 6.25038e+00 349 2018 7 2.39569e+01 1.28439e+01 456 2018 8 1.40618e+01 1.10177e+01 403 2018 9 1.84024e+01 1.43236e+01 960 2018 10 1.17373e+01 9.92624e+00 1000 2018 11 4.13150e+00 2.94396e+00 312 2018 12 3.52983e+00 2.93190e+00 756 2019 1 3.87799e+00 8.25381e+00 755 2019 2 8.27527e+00 8.48485e+00 128 2019 3 4.92787e+00 5.37804e+00 640 2019 4 2.03501e+00 1.39086e+00 441 2019 5 1.13128e+01 7.18826e+00 840 2019 6 1.99831e+01 1.02893e+01 367 2019 7 1.26885e+01 6.98273e+00 316 2019 8 1.41282e+01 1.04729e+01 749 2019 9 1.43089e+01 9.32889e+00 939 2019 10 1.68982e+01 7.37485e+00 754 2019 11 2.03851e+01 5.38844e+00 760 2019 12 1.48191e+01 7.37999e+00 543 2020 1 1.68998e+01 4.33032e+00 640 2020 2 1.70528e+01 6.01282e+00 640 2020 3 1.73211e+01 9.78691e+00 825 2020 4 9.78551e+00 3.47457e+00 518 2020 5 1.45462e+01 6.16171e+00 701 2020 6 8.86626e+00 7.63064e+00 754 2020 7 1.64721e+01 1.49873e+01 330 2020 8 1.23660e+01 5.10211e+00 163 2020 9 8.53076e+00 8.96218e+00 444 2020 10 6.59496e+00 8.95081e+00 780 2020 11 1.10675e+01 8.13271e+00 936 2020 12 7.05569e+00 5.17752e+00 634 2021 1 4.15079e+00 3.91126e+00 607 2021 2 2.43752e+00 2.54914e+00 576 2021 3 2.95791e+00 3.83544e+00 622 2021 4 4.54725e-01 1.14489e+00 420 2021 5 8.96456e+00 8.40653e+00 642 2021 6 1.92573e+01 1.45137e+01 296 2021 7 6.96786e+00 8.85059e+00 234 2021 8 1.32332e+01 2.13811e+01 248 2021 9 1.30307e+01 1.63309e+01 448 2021 10 1.17773e+01 6.91553e+00 322 2021 11 1.63307e+00 2.66156e+00 800 2021 12 8.34249e+00 1.18779e+01 562 2022 1 3.15364e+00 3.11204e+00 894 2022 2 5.68537e+00 4.85183e+00 632 2022 3 7.11089e+00 5.46634e+00 848 2022 4 6.85526e+00 3.63770e+00 137 2022 5 1.33294e+01 1.33680e+01 496 2022 6 1.93659e+01 7.66448e+00 570 2022 7 1.55134e+01 1.39686e+01 256 2022 8 2.18336e+01 5.62274e+00 573 2022 9 2.06527e+01 7.83834e+00 435 2022 10 9.27477e+00 7.00284e+00 1302 2022 11 1.87396e+01 5.02214e+00 485 2022 12 1.88724e+01 6.16314e+00 993 2023 1 2.04855e+01 4.45031e+00 896 2023 2 2.09692e+01 4.84914e+00 576 2023 3 1.56965e+01 5.19054e+00 763 2023 4 1.76192e+01 8.12998e+00 318 2023 5 1.86014e+01 8.01688e+00 448 2023 6 2.37807e+01 5.21961e+00 506 2023 7 2.25819e+01 2.74444e+00 192 2023 8 2.00585e+01 8.49214e+00 465 2023 9 1.00506e+01 9.00023e+00 631 2023 10 1.33997e+01 6.76960e+00 646 2023 11 1.17403e+01 8.72906e+00 628 2023 12 4.50096e+00 4.04242e+00 256 2024 1 1.41700e+00 1.23203e+00 448 2024 2 4.78469e+00 5.78976e+00 431 2024 3 9.63677e+00 1.05513e+01 412 2024 4 nan nan 0