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 1.30156e+01 6.89905e+00 192 2002 8 1.82234e+01 9.84780e+00 376 2002 9 9.36665e+00 1.26867e+01 416 2002 10 1.10295e+01 5.52186e+00 931 2002 11 8.34136e+00 4.06155e+00 697 2002 12 6.09733e+00 4.36545e+00 746 2003 1 1.37573e+00 1.75111e+00 1023 2003 2 6.83385e+00 4.58775e+00 552 2003 3 8.06205e+00 6.73166e+00 320 2003 4 1.79294e+01 6.79416e+00 630 2003 5 1.38601e+01 4.55459e+00 361 2003 6 1.05294e+01 4.85826e+00 105 2003 7 1.38710e+01 2.09828e+00 64 2003 8 1.16514e+01 1.57077e+01 183 2003 9 9.79055e+00 1.09258e+01 313 2003 10 3.52575e+00 1.29654e+00 525 2003 11 8.42650e+00 4.23170e+00 888 2003 12 8.70256e+00 3.79709e+00 710 2004 1 8.43734e+00 5.19653e+00 839 2004 2 1.55632e+01 5.99565e+00 469 2004 3 1.51644e+01 6.80010e+00 640 2004 4 2.07001e+01 9.63594e+00 436 2004 5 2.63673e+01 3.11545e+00 410 2004 6 2.45054e+01 5.55907e+00 268 2004 7 1.04301e+01 4.69955e+00 163 2004 8 8.14235e+00 4.13652e+00 179 2004 9 4.45489e+00 5.46021e+00 339 2004 10 2.03908e+00 4.64847e+00 572 2004 11 2.76615e+00 1.85529e+00 725 2004 12 2.68709e+00 3.33358e+00 384 2005 1 2.75373e+00 2.94547e+00 593 2005 2 7.72173e+00 4.74836e+00 689 2005 3 8.42163e+00 4.66946e+00 576 2005 4 1.17555e+01 7.41866e+00 626 2005 5 1.50930e+01 6.64291e+00 358 2005 6 9.86316e+00 4.96204e+00 191 2005 7 2.47534e+01 1.82661e+01 239 2005 8 1.05218e+01 5.07602e+00 350 2005 9 7.19045e+00 6.11604e+00 365 2005 10 7.30371e+00 4.15805e+00 578 2005 11 8.87782e+00 3.12616e+00 780 2005 12 9.68853e+00 4.98947e+00 816 2006 1 1.40144e+01 5.55262e+00 466 2006 2 1.74056e+01 5.95142e+00 896 2006 3 2.69107e+01 5.23346e+00 1070 2006 4 2.54658e+01 3.96576e+00 673 2006 5 2.19159e+01 3.65936e+00 465 2006 6 1.74081e+01 6.02458e+00 493 2006 7 1.77706e+01 4.50622e+00 189 2006 8 1.88850e+01 1.03379e+01 189 2006 9 5.71691e+00 1.04437e+01 591 2006 10 5.14682e+00 3.65390e+00 929 2006 11 9.46257e+00 3.85669e+00 743 2006 12 1.62124e+01 5.93444e+00 387 2007 1 1.60272e+01 4.53535e+00 437 2007 2 2.00041e+01 1.00752e+01 576 2007 3 2.41108e+01 7.32977e+00 658 2007 4 1.83950e+01 8.63062e+00 537 2007 5 2.69436e+01 5.08582e+00 383 2007 6 2.33654e+01 8.06666e+00 176 2007 7 2.27970e+01 5.27725e+00 361 2007 8 1.17371e+01 3.78459e+00 429 2007 9 1.06029e+01 6.00896e+00 448 2007 10 1.15183e+01 4.39855e+00 351 2007 11 1.31158e+01 4.14839e+00 907 2007 12 1.43323e+01 5.51742e+00 997 2008 1 1.08435e+01 7.88320e+00 639 2008 2 1.73959e+01 4.13038e+00 642 2008 3 1.79728e+01 8.77484e+00 590 2008 4 2.27679e+01 5.27900e+00 536 2008 5 2.23761e+01 6.32741e+00 503 2008 6 2.05632e+01 8.64059e+00 480 2008 7 2.44985e+01 4.38287e+00 192 2008 8 1.03353e+01 4.22249e+00 250 2008 9 1.41292e+01 6.12068e+00 304 2008 10 1.43067e+01 7.25557e+00 865 2008 11 1.02398e+01 4.64256e+00 1097 2008 12 1.60202e+01 6.27123e+00 868 2009 1 1.42744e+01 7.17998e+00 850 2009 2 1.47807e+01 7.99007e+00 772 2009 3 2.44194e+01 1.07974e+01 974 2009 4 1.94574e+01 1.20410e+01 271 2009 5 2.39039e+01 5.48047e+00 446 2009 6 2.22140e+01 1.06707e+01 195 2009 7 7.72480e+00 4.17303e+00 384 2009 8 7.85837e+00 4.77610e+00 411 2009 9 6.43554e+00 5.81186e+00 517 2009 10 6.23189e+00 2.76130e+00 675 2009 11 3.14950e+00 2.55739e+00 737 2009 12 9.00832e+00 3.82359e+00 427 2010 1 1.02667e+01 4.93501e+00 576 2010 2 3.58015e+00 3.13069e+00 583 2010 3 6.57057e+00 4.15217e+00 861 2010 4 2.09044e+01 8.43367e+00 623 2010 5 1.74250e+01 7.66272e+00 492 2010 6 2.27921e+01 4.80945e+00 524 2010 7 1.58954e+01 3.17702e+00 98 2010 8 1.16046e+01 3.19998e+00 262 2010 9 9.80354e+00 5.58111e+00 445 2010 10 6.95908e+00 3.42627e+00 1459 2010 11 8.41855e+00 6.65674e+00 1024 2010 12 5.90435e+00 5.57967e+00 1006 2011 1 1.66954e+01 6.06785e+00 648 2011 2 2.05906e+01 8.59543e+00 840 2011 3 2.17529e+01 6.91444e+00 984 2011 4 2.37949e+01 6.97350e+00 775 2011 5 2.11803e+01 6.83316e+00 570 2011 6 1.89337e+01 6.12022e+00 371 2011 7 2.15898e+01 7.09834e+00 255 2011 8 1.36959e+01 8.60414e+00 226 2011 9 1.33296e+01 5.76085e+00 197 2011 10 4.51321e+00 2.12111e+00 671 2011 11 3.68467e+00 2.69743e+00 970 2011 12 1.77190e+01 5.69549e+00 1108 2012 1 1.82216e+01 5.66321e+00 789 2012 2 2.12229e+01 8.49996e+00 622 2012 3 2.27382e+01 6.94832e+00 860 2012 4 2.66190e+01 6.41116e+00 547 2012 5 2.12519e+01 3.87459e+00 384 2012 6 1.35560e+00 1.05427e+00 122 2012 7 4.33618e+00 1.64364e+00 192 2012 8 9.57377e+00 2.58148e+00 192 2012 9 8.42364e+00 6.20596e+00 333 2012 10 2.49384e+00 1.52022e+00 424 2012 11 6.74466e+00 3.30966e+00 648 2012 12 7.04426e+00 4.84173e+00 436 2013 1 1.45032e+01 4.72646e+00 750 2013 2 1.73151e+01 5.86784e+00 759 2013 3 1.65950e+01 6.24791e+00 792 2013 4 2.14541e+01 6.62096e+00 447 2013 5 2.03093e+01 8.07433e+00 578 2013 6 1.51242e+01 7.65357e+00 384 2013 7 6.07851e+00 4.74079e+00 304 2013 8 1.51157e+01 1.29776e+01 359 2013 9 1.17825e+01 9.58592e+00 643 2013 10 1.07908e+01 8.57676e+00 780 2013 11 9.89452e+00 4.41365e+00 72 2013 12 7.78900e+00 3.99717e+00 634 2014 1 9.49958e+00 5.65064e+00 576 2014 2 1.53009e+01 6.59262e+00 704 2014 3 1.98279e+01 6.57268e+00 670 2014 4 2.02884e+01 6.85183e+00 499 2014 5 1.78672e+01 6.66065e+00 501 2014 6 1.89828e+01 7.61152e+00 558 2014 7 1.70389e+01 5.45276e+00 396 2014 8 1.32513e+01 4.78740e+00 504 2014 9 1.33091e+01 4.76272e+00 136 2014 10 5.12161e+00 6.20603e+00 1091 2014 11 5.29529e+00 3.49990e+00 924 2014 12 4.98790e+00 4.61101e+00 610 2015 1 5.23081e+00 3.02805e+00 539 2015 2 4.28060e+00 3.18057e+00 605 2015 3 1.85138e+01 9.40233e+00 495 2015 4 1.99549e+01 6.16812e+00 378 2015 5 2.04092e+01 6.65305e+00 513 2015 6 2.38603e+01 5.10647e+00 433 2015 7 1.50796e+01 5.04000e+00 118 2015 8 5.11993e+00 3.13956e+00 387 2015 9 1.53496e+01 1.25348e+01 283 2015 10 1.16083e+01 1.37657e+01 628 2015 11 4.67178e+00 2.90710e+00 563 2015 12 6.05796e+00 4.05952e+00 257 2016 1 5.60185e+00 3.04904e+00 576 2016 2 5.36263e+00 3.36051e+00 892 2016 3 1.13258e+01 7.14746e+00 448 2016 4 1.95447e+01 5.62517e+00 489 2016 5 1.89733e+01 8.53869e+00 509 2016 6 1.86710e+01 1.02999e+01 320 2016 7 7.41347e+00 6.09550e+00 202 2016 8 1.02764e+01 6.46149e+00 391 2016 9 1.13547e+01 7.51619e+00 725 2016 10 5.91868e+00 6.31490e+00 516 2016 11 5.03708e+00 2.67186e+00 668 2016 12 1.10506e+01 6.61265e+00 826 2017 1 1.17960e+01 5.51867e+00 823 2017 2 1.77339e+01 6.48507e+00 1166 2017 3 2.42572e+01 8.23879e+00 837 2017 4 2.56836e+01 5.82212e+00 549 2017 5 1.64418e+01 1.06490e+01 375 2017 6 2.13736e+01 4.23746e+00 177 2017 7 7.17061e+00 4.43185e+00 192 2017 8 1.31496e+01 1.15850e+01 319 2017 9 3.39278e+00 3.08009e+00 612 2017 10 3.11335e+00 2.29240e+00 515 2017 11 8.33994e+00 3.92248e+00 1038 2017 12 1.44065e+01 4.73637e+00 887 2018 1 7.55165e+00 4.87950e+00 668 2018 2 1.28996e+01 6.69160e+00 592 2018 3 7.39898e+00 5.20569e+00 992 2018 4 2.16780e+01 8.05174e+00 737 2018 5 2.12314e+01 6.85181e+00 355 2018 6 1.86518e+01 9.24451e+00 416 2018 7 1.89625e+01 4.67307e+00 330 2018 8 9.25609e+00 1.22113e+01 329 2018 9 4.81242e+00 1.40129e+01 465 2018 10 9.47586e+00 8.99965e+00 841 2018 11 3.84898e+00 2.74239e+00 482 2018 12 7.65811e+00 4.28778e+00 538 2019 1 6.00138e+00 4.19028e+00 771 2019 2 1.00281e+01 8.77858e+00 604 2019 3 1.65429e+01 8.18766e+00 858 2019 4 1.54744e+01 7.70434e+00 420 2019 5 2.92863e+01 6.12771e+00 604 2019 6 1.85692e+01 7.70289e+00 437 2019 7 1.44199e+01 6.25048e+00 512 2019 8 3.72910e+00 2.08289e+00 147 2019 9 7.90771e+00 5.20870e+00 384 2019 10 1.19716e+01 4.71345e+00 693 2019 11 1.28329e+01 4.37466e+00 542 2019 12 8.61451e+00 5.36874e+00 241 2020 1 8.48634e+00 5.78806e+00 636 2020 2 1.36324e+01 1.00168e+01 576 2020 3 1.98191e+01 7.78145e+00 514 2020 4 1.67596e+01 8.31771e+00 256 2020 5 2.42663e+01 6.53924e+00 742 2020 6 1.70652e+01 5.49944e+00 384 2020 7 1.60281e+01 6.45217e+00 192 2020 8 2.00959e+01 3.87696e+00 256 2020 9 8.08349e+00 5.13789e+00 161 2020 10 8.67262e+00 5.91804e+00 484 2020 11 3.64722e+00 4.05162e+00 631 2020 12 5.83787e+00 6.23704e+00 626 2021 1 8.60680e+00 8.61077e+00 592 2021 2 6.02019e+00 3.27491e+00 595 2021 3 1.76403e+01 8.29335e+00 596 2021 4 2.01737e+01 6.11246e+00 677 2021 5 2.07755e+01 6.10895e+00 702 2021 6 2.26470e+01 3.97497e+00 201 2021 7 1.11909e+01 7.03348e+00 227 2021 8 1.17573e+01 1.06533e+01 373 2021 9 8.24005e+00 9.96461e+00 395 2021 10 9.43290e+00 1.13614e+01 752 2021 11 5.66295e+00 4.05329e+00 857 2021 12 8.50889e+00 4.06526e+00 931 2022 1 8.26119e+00 5.39085e+00 745 2022 2 1.41113e+01 6.85825e+00 1333 2022 3 2.11403e+01 8.61468e+00 831 2022 4 nan nan 0 2022 5 2.31160e+01 5.83730e+00 641 2022 6 2.28165e+01 2.78944e+00 235 2022 7 2.04461e+01 6.11568e+00 303 2022 8 9.61528e+00 3.29878e+00 227 2022 9 1.30620e+01 1.02645e+01 479 2022 10 4.05930e+00 4.03951e+00 857 2022 11 6.28580e+00 4.50624e+00 512 2022 12 5.97681e+00 2.28195e+00 719 2023 1 9.65629e+00 5.33558e+00 832 2023 2 1.26475e+01 6.23938e+00 1035 2023 3 1.42300e+01 6.60853e+00 859 2023 4 2.36266e+01 4.83382e+00 342 2023 5 2.77133e+01 5.34889e+00 512 2023 6 1.79701e+01 5.80019e+00 295 2023 7 2.16360e+01 2.91975e+00 256 2023 8 2.00147e+01 6.06552e+00 384 2023 9 1.10744e+01 3.25521e+00 643 2023 10 1.32660e+01 7.47319e+00 545 2023 11 1.25546e+01 5.87438e+00 754 2023 12 6.56131e+00 5.10406e+00 244 2024 1 1.25025e+00 8.38311e-01 218 2024 2 1.00503e+01 7.19491e+00 673 2024 3 1.55013e+01 6.10065e+00 395 2024 4 nan nan 0