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 nan nan 0 2002 9 nan nan 0 2002 10 1.44560e+01 2.48467e+00 71 2002 11 1.17503e+01 4.28449e+00 291 2002 12 1.11039e+01 4.54725e+00 86 2003 1 1.00427e+01 2.87982e+00 94 2003 2 8.47111e+00 2.68046e+00 15 2003 3 6.93440e+00 3.50764e+00 113 2003 4 5.05648e+00 9.30213e-01 19 2003 5 3.53012e+00 2.07750e+00 73 2003 6 2.28741e+00 2.36861e-01 3 2003 7 nan nan 0 2003 8 nan nan 0 2003 9 nan nan 0 2003 10 1.28613e+01 2.49057e+00 126 2003 11 1.30760e+01 4.22375e+00 131 2003 12 1.11011e+01 4.54318e+00 224 2004 1 1.50153e+01 3.96918e+00 29 2004 2 1.27216e+01 3.21607e+00 160 2004 3 7.63870e+00 2.89721e+00 400 2004 4 4.33482e+00 2.62749e+00 47 2004 5 4.70271e+00 1.93268e+00 36 2004 6 5.21084e+00 1.27472e+00 34 2004 7 nan nan 0 2004 8 2.82745e+00 7.98353e-01 13 2004 9 7.22803e+00 1.67345e+00 11 2004 10 9.31023e+00 3.73557e+00 77 2004 11 1.59315e+01 3.23639e+00 12 2004 12 1.15590e+01 3.86495e+00 189 2005 1 1.08425e+01 3.74758e+00 198 2005 2 8.76747e+00 3.97964e+00 308 2005 3 6.92763e+00 2.73877e+00 216 2005 4 4.42054e+00 1.56610e+00 46 2005 5 5.97783e+00 2.51128e+00 26 2005 6 6.91105e+00 0.00000e+00 1 2005 7 nan nan 0 2005 8 nan nan 0 2005 9 nan nan 0 2005 10 1.29665e+01 3.01450e+00 56 2005 11 1.45845e+01 4.43425e+00 177 2005 12 1.31237e+01 5.59755e+00 405 2006 1 1.32397e+01 2.90473e+00 103 2006 2 7.06136e+00 8.03383e-01 7 2006 3 1.03464e+01 2.47154e+00 144 2006 4 4.34642e+00 1.66042e+00 80 2006 5 6.41377e+00 0.00000e+00 1 2006 6 3.51950e+00 1.43694e+00 53 2006 7 nan nan 0 2006 8 nan nan 0 2006 9 1.13467e+01 8.69368e-01 8 2006 10 1.28482e+01 6.33781e-02 5 2006 11 1.08969e+01 4.76951e+00 343 2006 12 1.48139e+01 3.89399e+00 106 2007 1 1.15050e+01 4.77006e+00 353 2007 2 7.82408e+00 3.40512e+00 452 2007 3 7.17419e+00 3.55562e+00 221 2007 4 6.73378e+00 8.79293e-01 19 2007 5 1.05158e+01 3.23676e+00 55 2007 6 5.16593e+00 5.64456e-01 10 2007 7 nan nan 0 2007 8 6.71359e+00 1.85992e+00 11 2007 9 1.01602e+01 3.09483e+00 65 2007 10 1.21843e+01 4.15175e+00 225 2007 11 1.08890e+01 4.27190e+00 242 2007 12 9.36522e+00 3.15034e+00 211 2008 1 1.46920e+01 3.15939e+00 116 2008 2 9.58987e+00 4.66550e+00 181 2008 3 9.35657e+00 3.60410e+00 222 2008 4 3.05489e+00 0.00000e+00 1 2008 5 nan nan 0 2008 6 nan nan 0 2008 7 4.16165e+00 5.75714e-01 9 2008 8 nan nan 0 2008 9 5.38264e+00 1.10853e+00 16 2008 10 1.11293e+01 4.20619e+00 85 2008 11 1.33213e+01 4.45886e+00 116 2008 12 1.16141e+01 5.29629e+00 382 2009 1 8.56172e+00 4.38196e+00 567 2009 2 9.74958e+00 2.72177e+00 82 2009 3 9.98567e+00 2.59409e+00 77 2009 4 nan nan 0 2009 5 nan nan 0 2009 6 nan nan 0 2009 7 nan nan 0 2009 8 5.96234e+00 0.00000e+00 1 2009 9 8.18879e+00 1.59585e+00 19 2009 10 8.88087e+00 3.82989e+00 153 2009 11 1.28888e+01 4.01971e+00 162 2009 12 1.07466e+01 4.80122e+00 446 2010 1 1.26007e+01 4.70825e+00 216 2010 2 1.12066e+01 3.66305e+00 96 2010 3 7.05986e+00 3.20150e+00 95 2010 4 5.59069e+00 9.64112e-01 4 2010 5 3.84571e+00 1.56441e+00 48 2010 6 2.23582e+00 7.72291e-01 5 2010 7 nan nan 0 2010 8 nan nan 0 2010 9 5.67814e+00 1.86600e+00 33 2010 10 1.21667e+01 3.78018e+00 277 2010 11 1.18035e+01 4.41510e+00 492 2010 12 1.11459e+01 3.83350e+00 410 2011 1 1.34523e+01 4.14838e+00 125 2011 2 1.31460e+01 4.22867e+00 164 2011 3 9.09159e+00 2.48852e+00 20 2011 4 nan nan 0 2011 5 nan nan 0 2011 6 nan nan 0 2011 7 nan nan 0 2011 8 nan nan 0 2011 9 nan nan 0 2011 10 1.27287e+01 3.02350e+00 78 2011 11 1.40708e+01 8.00444e-01 7 2011 12 1.05986e+01 4.66346e+00 500 2012 1 8.65308e+00 4.44100e+00 528 2012 2 9.51647e+00 2.94166e+00 60 2012 3 1.05048e+01 3.21319e+00 3 2012 4 nan nan 0 2012 5 nan nan 0 2012 6 nan nan 0 2012 7 nan nan 0 2012 8 4.87670e+00 7.44062e-01 3 2012 9 1.18357e+01 2.79202e+00 44 2012 10 1.03290e+01 3.49907e+00 80 2012 11 9.03674e+00 4.34565e+00 201 2012 12 7.95280e+00 2.48706e+00 43 2013 1 8.88203e+00 4.10664e+00 266 2013 2 8.81222e+00 3.43333e+00 327 2013 3 7.26461e+00 2.95352e+00 67 2013 4 nan nan 0 2013 5 nan nan 0 2013 6 nan nan 0 2013 7 nan nan 0 2013 8 nan nan 0 2013 9 1.29769e+01 2.45384e+00 33 2013 10 9.72241e+00 3.81095e+00 103 2013 11 1.19991e+01 4.61504e+00 148 2013 12 9.39816e+00 3.96119e+00 211 2014 1 7.87086e+00 3.48315e+00 164 2014 2 1.03875e+01 4.86178e+00 316 2014 3 9.49102e+00 2.78264e+00 141 2014 4 3.85964e+00 6.64987e-01 2 2014 5 nan nan 0 2014 6 nan nan 0 2014 7 nan nan 0 2014 8 nan nan 0 2014 9 1.02096e+01 3.37529e+00 73 2014 10 1.26740e+01 3.51626e+00 103 2014 11 8.77299e+00 4.67428e+00 121 2014 12 1.20925e+01 4.12096e+00 513 2015 1 8.93331e+00 4.01882e+00 455 2015 2 1.12816e+01 4.26760e+00 43 2015 3 8.15066e+00 3.15815e+00 238 2015 4 4.41022e+00 1.54561e+00 18 2015 5 nan nan 0 2015 6 2.92073e+00 2.42079e-01 3 2015 7 nan nan 0 2015 8 3.28377e+00 9.32485e-01 11 2015 9 1.36652e+01 1.30125e+00 13 2015 10 1.25702e+01 2.27408e+00 37 2015 11 1.20215e+01 5.70969e+00 60 2015 12 1.12351e+01 4.75993e+00 280 2016 1 1.05024e+01 5.21648e+00 281 2016 2 7.02758e+00 3.24063e+00 496 2016 3 7.76021e+00 2.08511e+00 160 2016 4 3.82267e+00 9.63607e-01 48 2016 5 5.64142e+00 1.58706e+00 70 2016 6 nan nan 0 2016 7 nan nan 0 2016 8 nan nan 0 2016 9 1.08520e+01 2.71192e+00 45 2016 10 1.20899e+01 3.39094e+00 144 2016 11 1.37976e+01 3.54808e+00 247 2016 12 1.41838e+01 3.95730e+00 159 2017 1 9.60118e+00 4.02720e+00 339 2017 2 1.04757e+01 3.68131e+00 350 2017 3 1.20131e+01 2.84086e+00 166 2017 4 2.80672e+00 5.50191e-01 5 2017 5 nan nan 0 2017 6 nan nan 0 2017 7 nan nan 0 2017 8 8.87591e+00 1.10038e+00 15 2017 9 1.23749e+01 1.24683e+00 18 2017 10 1.00490e+01 3.86229e+00 74 2017 11 1.78950e+01 2.87947e+00 24 2017 12 1.44049e+01 5.34681e+00 183 2018 1 1.40993e+01 3.75103e+00 287 2018 2 1.18366e+01 2.93194e+00 51 2018 3 9.77789e+00 2.98935e+00 99 2018 4 nan nan 0 2018 5 nan nan 0 2018 6 nan nan 0 2018 7 nan nan 0 2018 8 3.86012e+00 1.14873e-01 2 2018 9 1.09943e+01 4.38700e+00 137 2018 10 8.64116e+00 2.90739e+00 32 2018 11 1.36432e+01 0.00000e+00 2 2018 12 1.16327e+01 4.35875e+00 213 2019 1 9.06479e+00 4.31920e+00 18 2019 2 1.06591e+01 3.72587e+00 247 2019 3 7.00616e+00 3.09279e+00 524 2019 4 6.21652e+00 2.37549e+00 107 2019 5 6.94185e+00 2.75614e+00 291 2019 6 7.31627e+00 2.84356e+00 240 2019 7 nan nan 0 2019 8 6.38739e+00 1.17057e+00 28 2019 9 8.23032e+00 3.12777e+00 145 2019 10 1.13467e+01 3.37356e+00 168 2019 11 1.32526e+01 4.17150e+00 149 2019 12 1.62994e+01 5.19886e+00 148 2020 1 1.29339e+01 3.89024e+00 260 2020 2 9.74664e+00 3.48326e+00 507 2020 3 6.72099e+00 3.03521e+00 321 2020 4 5.93628e+00 2.78227e+00 92 2020 5 2.67386e+00 1.43160e+00 6 2020 6 2.73370e+00 1.23801e-01 2 2020 7 nan nan 0 2020 8 nan nan 0 2020 9 9.87644e+00 2.03596e+00 74 2020 10 1.16741e+01 3.13689e+00 292 2020 11 1.13585e+01 3.89738e+00 127 2020 12 1.31604e+01 5.31230e+00 93 2021 1 9.44048e+00 4.31862e+00 388 2021 2 1.23655e+01 4.17285e+00 199 2021 3 6.87790e+00 3.24588e+00 43 2021 4 5.87118e+00 4.88839e-01 8 2021 5 2.15859e+00 5.52469e-01 15 2021 6 3.98997e+00 6.58346e-01 14 2021 7 nan nan 0 2021 8 9.71322e+00 1.50362e+00 4 2021 9 1.06625e+01 3.92465e+00 121 2021 10 1.25038e+01 3.51493e+00 133 2021 11 1.66952e+01 4.22397e+00 79 2021 12 1.75166e+01 4.00097e+00 15 2022 1 1.20166e+01 3.52360e+00 138 2022 2 9.25272e+00 3.11161e+00 457 2022 3 8.03376e+00 2.13124e+00 7 2022 4 nan nan 0 2022 5 nan nan 0 2022 6 nan nan 0 2022 7 2.99017e+00 9.16125e-02 4 2022 8 nan nan 0 2022 9 6.43594e+00 3.00412e+00 65 2022 10 1.29569e+01 4.75179e+00 336 2022 11 1.39245e+01 4.88821e+00 170 2022 12 1.35018e+01 5.33428e+00 447 2023 1 1.19637e+01 4.06044e+00 176 2023 2 9.14746e+00 3.55269e+00 122 2023 3 7.62621e+00 3.67272e+00 677 2023 4 6.48443e+00 3.60935e+00 230 2023 5 7.75834e+00 1.87087e+00 29 2023 6 4.54919e+00 1.30947e+00 35 2023 7 7.14508e+00 3.42384e+00 38 2023 8 nan nan 0 2023 9 9.10565e+00 4.36692e+00 91 2023 10 1.36177e+01 4.22661e+00 96 2023 11 1.48213e+01 4.68414e+00 130 2023 12 1.10774e+01 6.70093e+00 469 2024 1 1.43761e+01 5.55052e+00 347 2024 2 9.08444e+00 3.55957e+00 607 2024 3 1.18637e+01 4.28376e+00 101 2024 4 5.88470e+00 2.62835e+00 66