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 6.20069e+01 3.08725e-01 401 2002 8 5.88293e+01 7.98944e-01 340 2002 9 5.33269e+01 1.98445e+00 308 2002 10 4.52164e+01 2.35741e+00 808 2002 11 3.89105e+01 2.12151e+00 304 2002 12 3.41524e+01 2.01752e-01 214 2003 1 3.60746e+01 7.96800e-01 356 2003 2 4.29290e+01 1.97345e+00 893 2003 3 5.02094e+01 2.45484e+00 585 2003 4 5.85405e+01 7.88323e-01 254 2003 5 6.12658e+01 6.24300e-01 583 2003 6 6.24905e+01 8.74469e-02 256 2003 7 6.17003e+01 4.75928e-01 349 2003 8 5.91357e+01 9.55589e-01 308 2003 9 5.25755e+01 1.36354e+00 337 2003 10 4.42568e+01 1.83430e+00 699 2003 11 3.82316e+01 1.35911e+00 670 2003 12 3.37358e+01 6.02815e-03 64 2004 1 3.52374e+01 1.42893e+00 500 2004 2 4.32879e+01 2.89725e+00 401 2004 3 5.24645e+01 2.03959e+00 880 2004 4 5.90558e+01 1.19464e+00 384 2004 5 6.15767e+01 5.27846e-01 832 2004 6 6.24647e+01 1.36125e-01 672 2004 7 6.19780e+01 4.83634e-01 317 2004 8 5.84645e+01 1.14331e+00 335 2004 9 5.63674e+01 8.71055e-03 64 2004 10 4.27701e+01 1.13968e+00 454 2004 11 3.70675e+01 1.82217e+00 766 2004 12 3.37271e+01 6.84165e-01 660 2005 1 3.77217e+01 8.75714e-01 390 2005 2 4.33292e+01 2.43037e+00 781 2005 3 5.26857e+01 1.08196e+00 250 2005 4 5.81117e+01 1.60603e+00 582 2005 5 6.15904e+01 4.13675e-01 541 2005 6 6.25923e+01 1.42015e-01 381 2005 7 6.17026e+01 7.58859e-01 567 2005 8 5.96340e+01 8.51627e-01 446 2005 9 5.30023e+01 7.98274e-01 395 2005 10 4.46409e+01 2.60582e+00 400 2005 11 3.78144e+01 1.98474e+00 923 2005 12 3.38771e+01 3.91033e-01 850 2006 1 3.58100e+01 1.83460e+00 852 2006 2 4.57545e+01 5.05159e-01 256 2006 3 5.17193e+01 1.29088e+00 512 2006 4 5.80635e+01 1.40780e+00 786 2006 5 6.12812e+01 7.00282e-01 569 2006 6 6.25834e+01 1.89314e-01 683 2006 7 6.19848e+01 3.75421e-01 514 2006 8 5.87054e+01 1.08093e+00 386 2006 9 5.25807e+01 1.48886e+00 311 2006 10 4.53750e+01 1.44791e+00 459 2006 11 3.66633e+01 1.70083e+00 397 2006 12 3.37848e+01 6.18334e-01 192 2007 1 3.54814e+01 8.82680e-01 577 2007 2 4.39740e+01 2.40267e+00 306 2007 3 5.22912e+01 2.42631e+00 808 2007 4 5.81363e+01 1.51147e+00 634 2007 5 6.13052e+01 5.77396e-01 906 2007 6 6.25047e+01 4.11605e-01 320 2007 7 6.20818e+01 3.66944e-01 769 2007 8 5.88591e+01 1.38276e+00 467 2007 9 5.39334e+01 2.31790e+00 197 2007 10 4.59523e+01 1.35367e+00 436 2007 11 3.58688e+01 1.84645e+00 217 2007 12 3.39945e+01 3.75290e-01 480 2008 1 3.73937e+01 1.58490e+00 293 2008 2 4.16222e+01 1.97280e+00 717 2008 3 5.27195e+01 2.20067e+00 385 2008 4 5.78898e+01 1.58408e+00 833 2008 5 6.14118e+01 6.96178e-01 640 2008 6 6.25293e+01 1.38019e-01 625 2008 7 6.17075e+01 7.67681e-01 333 2008 8 5.90670e+01 1.49178e+00 337 2008 9 5.44716e+01 3.26260e+00 82 2008 10 4.51823e+01 1.61119e+00 449 2008 11 3.60791e+01 1.27104e+00 491 2008 12 3.37601e+01 2.52439e-01 322 2009 1 3.56287e+01 1.75971e+00 431 2009 2 4.48778e+01 1.63347e+00 648 2009 3 5.17288e+01 1.65089e+00 677 2009 4 5.84282e+01 1.59988e+00 554 2009 5 6.11666e+01 4.85275e-01 643 2009 6 6.26544e+01 6.87011e-02 334 2009 7 6.20916e+01 3.34547e-01 363 2009 8 5.93013e+01 1.15885e+00 374 2009 9 5.26882e+01 2.30866e+00 738 2009 10 4.56756e+01 2.53197e+00 854 2009 11 3.68770e+01 1.33340e+00 433 2009 12 3.37376e+01 2.89209e-01 34 2010 1 3.74833e+01 1.87646e-01 83 2010 2 4.07090e+01 3.38051e-01 129 2010 3 nan nan 0 2010 4 5.77028e+01 1.21578e+00 638 2010 5 6.13003e+01 6.15294e-01 825 2010 6 6.24091e+01 2.03683e-01 619 2010 7 6.17422e+01 5.11143e-01 512 2010 8 5.89306e+01 1.12013e+00 600 2010 9 5.28657e+01 1.28890e+00 494 2010 10 4.56281e+01 3.46770e+00 458 2010 11 3.84726e+01 1.79941e+00 500 2010 12 3.36544e+01 5.83324e-03 57 2011 1 nan nan 0 2011 2 4.40468e+01 2.61911e+00 826 2011 3 5.13592e+01 2.38582e+00 1065 2011 4 5.83506e+01 1.38135e+00 785 2011 5 6.13132e+01 6.16015e-01 901 2011 6 6.26047e+01 1.39178e-01 654 2011 7 6.16728e+01 4.62959e-01 478 2011 8 5.94876e+01 9.39772e-01 360 2011 9 5.29533e+01 9.10912e-01 448 2011 10 4.84033e+01 8.62986e-01 126 2011 11 3.65566e+01 1.18276e+00 597 2011 12 3.35925e+01 2.14150e-01 891 2012 1 3.70565e+01 1.29987e+00 689 2012 2 4.39277e+01 2.49303e+00 569 2012 3 5.08255e+01 2.78814e+00 437 2012 4 5.71488e+01 1.07742e+00 640 2012 5 6.15599e+01 5.81334e-01 550 2012 6 6.26325e+01 1.19122e-01 256 2012 7 6.19248e+01 6.77309e-01 323 2012 8 5.97486e+01 9.56923e-01 412 2012 9 5.30761e+01 2.53842e+00 543 2012 10 4.54903e+01 1.79571e+00 774 2012 11 3.78582e+01 1.98970e+00 805 2012 12 3.39253e+01 3.98148e-01 294 2013 1 3.62643e+01 1.53677e+00 536 2013 2 4.40310e+01 1.96089e+00 542 2013 3 5.43127e+01 1.16016e+00 240 2013 4 5.80335e+01 1.12959e+00 700 2013 5 6.16000e+01 5.20517e-01 563 2013 6 6.25657e+01 1.13198e-01 459 2013 7 6.15165e+01 4.30105e-01 380 2013 8 5.92307e+01 1.05816e+00 494 2013 9 5.13722e+01 1.81962e+00 513 2013 10 4.43067e+01 2.38656e+00 726 2013 11 3.78169e+01 1.89548e+00 557 2013 12 3.37174e+01 3.77256e-01 660 2014 1 3.39182e+01 3.51222e-01 137 2014 2 4.56194e+01 1.87357e+00 242 2014 3 5.03239e+01 2.06049e+00 622 2014 4 5.82382e+01 1.58957e+00 705 2014 5 6.13709e+01 5.25604e-01 731 2014 6 6.25101e+01 1.17239e-01 558 2014 7 6.18815e+01 3.63414e-01 382 2014 8 5.86764e+01 1.33714e+00 661 2014 9 5.27096e+01 1.54735e+00 145 2014 10 4.54102e+01 2.31717e+00 1000 2014 11 3.77489e+01 5.02425e-01 320 2014 12 3.37066e+01 2.50342e-01 656 2015 1 3.50808e+01 1.12717e+00 450 2015 2 4.35249e+01 2.26878e-01 181 2015 3 5.03776e+01 1.54468e+00 576 2015 4 5.70136e+01 1.26761e+00 599 2015 5 6.12891e+01 5.38323e-01 990 2015 6 6.24766e+01 7.70701e-02 450 2015 7 6.24492e+01 3.41573e-02 130 2015 8 5.84177e+01 9.59602e-01 426 2015 9 5.29764e+01 1.92739e+00 383 2015 10 4.48397e+01 1.88140e+00 567 2015 11 3.75971e+01 2.05084e+00 850 2015 12 3.37001e+01 3.83007e-01 493 2016 1 3.48445e+01 8.33104e-01 116 2016 2 4.40649e+01 1.37793e+00 386 2016 3 5.12085e+01 2.50633e+00 403 2016 4 5.86976e+01 1.42228e+00 526 2016 5 6.14520e+01 5.76882e-01 790 2016 6 6.23583e+01 1.66165e-01 640 2016 7 6.19276e+01 5.31870e-01 609 2016 8 5.92654e+01 8.00230e-01 448 2016 9 5.23225e+01 2.06199e+00 745 2016 10 4.52795e+01 2.16039e+00 1087 2016 11 3.76146e+01 1.84779e+00 1024 2016 12 3.36571e+01 3.64322e-01 896 2017 1 3.61779e+01 9.55640e-01 454 2017 2 4.38767e+01 2.17119e+00 802 2017 3 5.20090e+01 2.23675e+00 715 2017 4 5.80970e+01 1.40954e+00 420 2017 5 6.16514e+01 4.89954e-01 767 2017 6 6.24627e+01 9.42314e-02 208 2017 7 6.20362e+01 7.28468e-01 262 2017 8 5.91770e+01 1.09869e+00 665 2017 9 5.17690e+01 9.22788e-01 319 2017 10 4.50668e+01 1.91395e+00 448 2017 11 3.77125e+01 1.77005e+00 1075 2017 12 3.36686e+01 3.37194e-01 951 2018 1 3.61935e+01 9.17633e-01 296 2018 2 4.41392e+01 1.77380e+00 873 2018 3 5.19265e+01 2.98184e+00 694 2018 4 5.80022e+01 1.62865e+00 823 2018 5 6.07013e+01 2.86739e-01 374 2018 6 6.24593e+01 1.89877e-01 335 2018 7 6.20323e+01 3.28109e-01 525 2018 8 5.86491e+01 1.07145e+00 404 2018 9 5.20704e+01 2.24045e+00 793 2018 10 4.45036e+01 2.22165e+00 831 2018 11 3.78745e+01 1.52364e+00 831 2018 12 3.41339e+01 3.71884e-01 192 2019 1 3.74394e+01 1.29139e+00 109 2019 2 4.35647e+01 2.33346e+00 1152 2019 3 5.11092e+01 2.30459e+00 751 2019 4 5.72358e+01 1.29531e+00 388 2019 5 6.13687e+01 5.33504e-01 652 2019 6 6.25021e+01 1.69148e-01 896 2019 7 6.16619e+01 7.82046e-01 366 2019 8 5.86495e+01 1.29991e+00 367 2019 9 5.16833e+01 1.24824e+00 433 2019 10 4.45575e+01 2.60336e+00 875 2019 11 3.70778e+01 2.17777e+00 504 2019 12 3.36733e+01 2.41205e-01 566 2020 1 3.48263e+01 9.12651e-01 704 2020 2 4.38484e+01 2.19865e+00 207 2020 3 5.22202e+01 1.69894e+00 861 2020 4 5.68848e+01 1.42198e+00 400 2020 5 6.13685e+01 5.82150e-01 576 2020 6 6.24897e+01 5.80203e-02 395 2020 7 6.15855e+01 5.28101e-01 386 2020 8 5.89963e+01 1.15629e+00 555 2020 9 5.29218e+01 1.99679e+00 549 2020 10 4.46514e+01 2.26111e+00 573 2020 11 3.65974e+01 1.64662e+00 576 2020 12 3.34937e+01 1.55102e-01 584 2021 1 3.63726e+01 1.80481e+00 514 2021 2 4.43586e+01 1.94987e+00 576 2021 3 5.14492e+01 2.43127e+00 1000 2021 4 5.83105e+01 1.57920e+00 768 2021 5 6.15555e+01 6.15445e-01 794 2021 6 6.23912e+01 2.11288e-01 276 2021 7 6.17058e+01 5.03152e-01 327 2021 8 5.92024e+01 5.93078e-01 330 2021 9 5.05925e+01 1.32283e+00 422 2021 10 4.59141e+01 1.74073e+00 510 2021 11 3.66770e+01 1.94155e+00 640 2021 12 3.37153e+01 3.32015e-01 850 2022 1 3.46105e+01 6.98720e-01 348 2022 2 4.51521e+01 2.05448e+00 435 2022 3 5.10989e+01 2.60833e+00 579 2022 4 5.92604e+01 2.34609e-01 151 2022 5 6.10355e+01 5.79104e-01 628 2022 6 6.25413e+01 1.47985e-01 541 2022 7 6.20256e+01 8.23029e-01 505 2022 8 5.87553e+01 1.11710e+00 507 2022 9 5.32064e+01 2.15515e+00 497 2022 10 4.42066e+01 2.40018e+00 827 2022 11 3.77125e+01 2.11749e+00 949 2022 12 3.39297e+01 3.26381e-01 901 2023 1 3.51466e+01 1.62995e+00 512 2023 2 4.37677e+01 2.51533e+00 880 2023 3 5.15330e+01 2.63370e+00 765 2023 4 5.72390e+01 1.28636e+00 317 2023 5 6.13999e+01 5.15334e-01 621 2023 6 6.25672e+01 5.97053e-02 425 2023 7 6.19765e+01 5.81123e-01 554 2023 8 5.86001e+01 1.26313e+00 232 2023 9 5.35115e+01 1.77468e+00 601 2023 10 4.47934e+01 2.90981e+00 498 2023 11 3.79317e+01 1.68290e+00 640 2023 12 3.37134e+01 3.41573e-01 300 2024 1 3.79258e+01 3.91416e-01 256 2024 2 4.46408e+01 2.73481e+00 648 2024 3 5.23105e+01 2.03480e+00 587 2024 4 nan nan 0