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 6.22200e+01 0.00000e+00 4 2002 8 nan nan 0 2002 9 5.14982e+01 9.83419e-01 131 2002 10 4.92266e+01 1.42563e+00 71 2002 11 3.63590e+01 2.00282e+00 192 2002 12 3.38780e+01 6.21371e-01 835 2003 1 3.49658e+01 1.53429e+00 745 2003 2 4.29774e+01 2.31658e+00 1024 2003 3 5.10683e+01 1.19323e+00 384 2003 4 5.73149e+01 7.35982e-01 139 2003 5 6.03222e+01 9.03041e-03 66 2003 6 6.24380e+01 0.00000e+00 2 2003 7 6.15569e+01 5.16625e-02 50 2003 8 nan nan 0 2003 9 5.40615e+01 1.81849e+00 250 2003 10 4.53123e+01 3.60590e+00 346 2003 11 3.71406e+01 1.61462e+00 828 2003 12 3.27866e+01 9.02305e-01 541 2004 1 3.46349e+01 5.50808e-01 183 2004 2 4.60878e+01 1.69788e-01 29 2004 3 5.54020e+01 3.76737e-01 123 2004 4 5.71196e+01 2.84202e-01 84 2004 5 nan nan 0 2004 6 6.29241e+01 9.41465e-01 41 2004 7 6.28380e+01 0.00000e+00 2 2004 8 5.88659e+01 6.11309e-01 106 2004 9 5.08781e+01 4.85475e-01 110 2004 10 4.36713e+01 2.07435e+00 653 2004 11 3.78298e+01 1.53586e+00 896 2004 12 3.44022e+01 7.36140e-01 355 2005 1 3.54338e+01 1.11303e+00 852 2005 2 4.14999e+01 2.02348e+00 339 2005 3 5.28305e+01 1.41635e+00 141 2005 4 5.50886e+01 1.29156e+00 74 2005 5 6.03599e+01 3.66691e-01 206 2005 6 6.32487e+01 7.47767e-03 33 2005 7 6.27580e+01 4.01045e-01 20 2005 8 6.02589e+01 1.61913e+00 39 2005 9 5.17881e+01 1.31926e+00 101 2005 10 4.66432e+01 1.37680e-01 64 2005 11 3.84116e+01 1.82991e+00 728 2005 12 3.32818e+01 7.74544e-01 915 2006 1 3.59590e+01 1.61339e+00 576 2006 2 4.48452e+01 9.40099e-01 448 2006 3 5.09512e+01 2.17596e+00 240 2006 4 5.86703e+01 1.29251e+00 304 2006 5 6.01101e+01 1.14971e+00 192 2006 6 6.01835e+01 8.93336e-01 19 2006 7 6.03515e+01 2.08644e-01 101 2006 8 5.87491e+01 8.68765e-03 16 2006 9 5.29762e+01 2.09825e+00 12 2006 10 4.12994e+01 1.85415e+00 64 2006 11 3.69929e+01 1.41729e+00 600 2006 12 3.35807e+01 4.11513e-01 455 2007 1 3.58013e+01 1.36164e+00 874 2007 2 3.94864e+01 9.92847e-02 64 2007 3 5.05345e+01 9.49484e-01 40 2007 4 nan nan 0 2007 5 6.01214e+01 2.15696e-01 55 2007 6 6.33946e+01 6.28051e-02 118 2007 7 6.18858e+01 4.39334e-01 242 2007 8 5.91626e+01 1.11036e+00 416 2007 9 5.26660e+01 1.36511e+00 341 2007 10 4.50819e+01 3.41850e+00 244 2007 11 3.81418e+01 1.71143e+00 862 2007 12 3.39077e+01 6.24144e-01 1035 2008 1 3.70350e+01 1.49338e+00 667 2008 2 4.20313e+01 2.31563e+00 259 2008 3 4.72809e+01 1.16070e-01 67 2008 4 nan nan 0 2008 5 6.16769e+01 4.37228e-01 319 2008 6 6.25487e+01 6.99212e-01 172 2008 7 6.09875e+01 5.01118e-01 132 2008 8 5.91432e+01 8.06335e-01 180 2008 9 5.16505e+01 1.29138e-01 42 2008 10 4.56779e+01 1.60187e+00 181 2008 11 3.73166e+01 1.92207e+00 1068 2008 12 3.35696e+01 6.02645e-01 791 2009 1 3.51544e+01 7.89376e-01 337 2009 2 4.01656e+01 3.03018e+00 97 2009 3 5.39013e+01 2.35317e-02 9 2009 4 5.55501e+01 4.09660e-01 128 2009 5 6.04008e+01 8.99591e-01 130 2009 6 6.18490e+01 3.10975e-01 57 2009 7 6.14574e+01 1.56540e-01 87 2009 8 6.02078e+01 9.10813e-01 294 2009 9 5.42995e+01 1.72333e+00 345 2009 10 4.54485e+01 2.09334e+00 479 2009 11 3.68034e+01 1.30696e+00 549 2009 12 3.37583e+01 6.81249e-01 739 2010 1 3.69493e+01 1.15852e-02 3 2010 2 3.85660e+01 2.34706e-02 7 2010 3 5.10038e+01 6.50481e-02 64 2010 4 5.47104e+01 3.11307e-02 40 2010 5 5.90929e+01 6.46083e-01 88 2010 6 6.23721e+01 2.01234e-01 31 2010 7 6.14248e+01 7.62822e-01 573 2010 8 5.95448e+01 8.96562e-02 64 2010 9 5.12817e+01 1.76620e-01 18 2010 10 4.40605e+01 1.83030e+00 813 2010 11 3.80605e+01 1.75284e+00 876 2010 12 3.31745e+01 7.62231e-01 519 2011 1 nan nan 0 2011 2 nan nan 0 2011 3 5.15403e+01 1.97701e+00 73 2011 4 5.68646e+01 9.57153e-01 178 2011 5 6.06479e+01 1.96653e-01 149 2011 6 6.14919e+01 1.49574e-01 85 2011 7 6.14135e+01 2.31241e-02 4 2011 8 nan nan 0 2011 9 5.49160e+01 0.00000e+00 2 2011 10 4.34912e+01 1.58480e+00 145 2011 11 3.77512e+01 1.37549e+00 915 2011 12 3.38152e+01 5.76930e-01 1229 2012 1 3.59972e+01 1.75336e+00 850 2012 2 4.50484e+01 1.81415e+00 467 2012 3 5.11937e+01 1.93043e+00 585 2012 4 5.57663e+01 9.65635e-01 127 2012 5 6.09075e+01 3.57184e-01 128 2012 6 6.33565e+01 1.80578e-01 66 2012 7 6.13932e+01 4.63725e-01 12 2012 8 nan nan 0 2012 9 5.27319e+01 2.60625e+00 189 2012 10 4.37369e+01 3.64942e-01 67 2012 11 3.81904e+01 1.58001e+00 900 2012 12 3.36154e+01 7.97523e-01 533 2013 1 3.60986e+01 1.41154e+00 876 2013 2 4.20665e+01 2.21905e+00 343 2013 3 5.40100e+01 0.00000e+00 1 2013 4 5.82827e+01 7.43051e-01 128 2013 5 nan nan 0 2013 6 nan nan 0 2013 7 6.02964e+01 3.59169e-02 11 2013 8 5.78942e+01 2.26036e-01 60 2013 9 nan nan 0 2013 10 4.29963e+01 3.73934e-02 7 2013 11 3.71145e+01 1.99786e+00 670 2013 12 3.40349e+01 4.12300e-01 757 2014 1 3.63249e+01 1.46769e+00 727 2014 2 4.18379e+01 1.50489e+00 603 2014 3 5.19281e+01 3.86028e+00 38 2014 4 5.39172e+01 1.02052e-01 16 2014 5 6.12819e+01 9.87424e-01 198 2014 6 6.32779e+01 8.59731e-02 370 2014 7 6.11879e+01 2.67184e-01 71 2014 8 5.89610e+01 1.14917e+00 536 2014 9 5.49828e+01 1.60084e-03 5 2014 10 4.35307e+01 1.81254e+00 123 2014 11 3.77243e+01 2.19994e+00 893 2014 12 3.39787e+01 3.65034e-01 781 2015 1 3.59479e+01 1.43944e+00 704 2015 2 4.10699e+01 1.53150e+00 316 2015 3 5.20101e+01 6.41066e-01 117 2015 4 6.01270e+01 2.30904e-02 64 2015 5 6.04917e+01 2.86938e-01 68 2015 6 6.29207e+01 2.16814e-01 83 2015 7 6.22434e+01 4.76786e-01 192 2015 8 6.02657e+01 9.99984e-01 82 2015 9 5.54526e+01 1.40776e+00 168 2015 10 4.50539e+01 2.07807e+00 434 2015 11 3.78920e+01 1.97346e+00 799 2015 12 3.39745e+01 4.85235e-01 595 2016 1 3.47554e+01 1.10036e-01 67 2016 2 4.16972e+01 2.07482e+00 429 2016 3 5.24268e+01 2.58097e+00 192 2016 4 5.94103e+01 9.25094e-01 204 2016 5 6.12899e+01 7.84444e-01 644 2016 6 6.29613e+01 5.37967e-01 413 2016 7 6.20787e+01 5.63332e-01 299 2016 8 5.94997e+01 1.20842e+00 109 2016 9 5.12887e+01 1.56150e+00 71 2016 10 4.48644e+01 1.26963e+00 578 2016 11 3.81525e+01 1.93094e+00 1079 2016 12 3.37934e+01 4.40226e-01 721 2017 1 3.59842e+01 1.20456e+00 560 2017 2 4.08379e+01 5.00686e-01 88 2017 3 5.07475e+01 1.25054e+00 191 2017 4 5.45798e+01 2.64538e-02 23 2017 5 6.16430e+01 7.24462e-01 450 2017 6 nan nan 0 2017 7 6.16588e+01 7.64001e-02 30 2017 8 5.88109e+01 1.54408e+00 313 2017 9 5.26023e+01 1.80765e+00 271 2017 10 4.60327e+01 2.03924e+00 450 2017 11 3.83553e+01 1.88500e+00 963 2017 12 3.39463e+01 6.23330e-01 1269 2018 1 3.58848e+01 7.44312e-01 192 2018 2 4.26205e+01 2.11716e+00 972 2018 3 5.06150e+01 2.39713e+00 106 2018 4 5.86294e+01 1.55017e-01 65 2018 5 nan nan 0 2018 6 6.20522e+01 2.98014e-01 51 2018 7 6.03536e+01 1.00713e+00 83 2018 8 nan nan 0 2018 9 nan nan 0 2018 10 4.19902e+01 3.73963e-01 135 2018 11 3.71308e+01 1.03791e+00 359 2018 12 3.41324e+01 6.28971e-01 643 2019 1 3.55625e+01 1.06394e+00 691 2019 2 4.36588e+01 2.42328e+00 1031 2019 3 5.18466e+01 2.67586e+00 651 2019 4 5.84746e+01 1.52242e+00 721 2019 5 6.07356e+01 2.06844e-01 202 2019 6 6.25191e+01 6.49007e-01 132 2019 7 6.11464e+01 2.93731e-01 43 2019 8 5.66207e+01 1.31481e-02 6 2019 9 5.18535e+01 1.41229e+00 267 2019 10 4.75533e+01 1.78249e+00 385 2019 11 3.64919e+01 1.06161e+00 540 2019 12 3.39301e+01 4.60364e-01 735 2020 1 3.58881e+01 1.74947e+00 754 2020 2 4.20789e+01 1.83866e+00 677 2020 3 4.90898e+01 1.74244e+00 211 2020 4 5.57410e+01 8.94010e-01 65 2020 5 6.11985e+01 3.68842e-01 98 2020 6 6.33159e+01 5.93833e-02 229 2020 7 6.12735e+01 1.41200e+00 126 2020 8 5.93976e+01 5.12162e-01 137 2020 9 5.04226e+01 2.83164e-01 66 2020 10 4.14737e+01 4.96048e-01 106 2020 11 3.64288e+01 9.36558e-01 520 2020 12 3.37353e+01 5.82360e-01 1000 2021 1 3.67392e+01 1.53981e+00 771 2021 2 4.43163e+01 2.14304e+00 665 2021 3 5.14646e+01 2.52514e+00 600 2021 4 5.78381e+01 1.08665e+00 462 2021 5 6.19007e+01 2.88599e-01 231 2021 6 6.26817e+01 6.47946e-01 160 2021 7 6.21063e+01 6.72510e-01 487 2021 8 5.87269e+01 6.94384e-01 404 2021 9 5.13340e+01 9.17874e-01 373 2021 10 4.62225e+01 1.88168e+00 691 2021 11 3.68237e+01 2.12281e+00 468 2021 12 3.39801e+01 8.35253e-01 987 2022 1 3.52099e+01 9.25123e-01 349 2022 2 4.33147e+01 2.72176e+00 908 2022 3 5.05560e+01 2.81518e+00 277 2022 4 5.98405e+01 2.31648e-02 76 2022 5 6.08474e+01 2.09213e-01 280 2022 6 6.29265e+01 8.30971e-01 172 2022 7 6.26758e+01 4.40233e-01 106 2022 8 5.77481e+01 5.28930e-01 90 2022 9 5.40540e+01 7.72025e-01 256 2022 10 4.49282e+01 2.71078e+00 995 2022 11 3.79225e+01 1.99648e+00 891 2022 12 3.42437e+01 4.64919e-01 973 2023 1 3.59238e+01 1.69483e+00 892 2023 2 4.33607e+01 2.30978e+00 1024 2023 3 5.06740e+01 2.14348e+00 391 2023 4 5.83101e+01 1.43917e+00 174 2023 5 5.96647e+01 5.71844e-01 132 2023 6 6.16842e+01 3.55156e-01 34 2023 7 6.19792e+01 4.12437e-01 42 2023 8 nan nan 0 2023 9 nan nan 0 2023 10 nan nan 0 2023 11 3.75933e+01 1.65859e+00 777 2023 12 3.39202e+01 6.65446e-01 302 2024 1 3.68883e+01 1.51403e+00 265 2024 2 4.30953e+01 2.76046e+00 272 2024 3 5.13103e+01 5.16918e-02 64 2024 4 5.54260e+01 5.14592e-02 5