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 3.18414e+01 1.35807e+01 140 2002 8 3.43122e+01 1.18882e+01 111 2002 9 2.56354e+01 1.08269e+01 70 2002 10 2.23554e+01 9.14078e+00 204 2002 11 1.59486e+01 8.51944e+00 85 2002 12 1.13171e+01 6.40750e+00 83 2003 1 1.63085e+01 6.60084e+00 76 2003 2 1.31993e+01 9.82073e+00 62 2003 3 2.48611e+01 8.89195e+00 307 2003 4 2.50333e+01 1.26843e+01 123 2003 5 3.10292e+01 1.13029e+01 139 2003 6 2.58900e+01 1.38150e+01 57 2003 7 3.54226e+01 1.40928e+01 116 2003 8 2.75102e+01 1.43485e+01 93 2003 9 2.74540e+01 1.04276e+01 80 2003 10 2.49621e+01 9.18132e+00 229 2003 11 1.56803e+01 8.53142e+00 54 2003 12 1.17154e+01 7.87195e+00 57 2004 1 1.38025e+01 7.17792e+00 71 2004 2 1.79600e+01 1.05019e+01 124 2004 3 2.25308e+01 1.19018e+01 206 2004 4 2.53128e+01 1.16255e+01 84 2004 5 2.29317e+01 1.29380e+01 93 2004 6 2.85925e+01 1.38328e+01 155 2004 7 2.64210e+01 1.31041e+01 119 2004 8 2.97090e+01 1.36928e+01 97 2004 9 2.14600e+01 1.15016e+01 64 2004 10 2.05914e+01 1.04115e+01 118 2004 11 1.61317e+01 9.24925e+00 57 2004 12 1.21610e+01 6.07277e+00 91 2005 1 1.33217e+01 8.01244e+00 102 2005 2 1.91513e+01 8.85470e+00 80 2005 3 2.20350e+01 1.14375e+01 110 2005 4 2.56268e+01 1.24235e+01 110 2005 5 2.98500e+01 1.50601e+01 122 2005 6 2.56948e+01 1.48446e+01 23 2005 7 3.02232e+01 1.41867e+01 159 2005 8 2.69161e+01 1.13287e+01 185 2005 9 2.23171e+01 1.21820e+01 160 2005 10 1.93315e+01 1.24087e+01 45 2005 11 8.99568e+00 6.42423e+00 33 2005 12 1.61823e+01 7.01567e+00 371 2006 1 1.52961e+01 7.88119e+00 189 2006 2 1.69234e+01 9.35150e+00 101 2006 3 2.22171e+01 1.43811e+01 160 2006 4 2.52962e+01 1.27101e+01 185 2006 5 2.78769e+01 1.28077e+01 147 2006 6 2.69762e+01 1.17349e+01 120 2006 7 3.42364e+01 1.23377e+01 41 2006 8 2.36672e+01 1.36512e+01 111 2006 9 2.08876e+01 1.07803e+01 50 2006 10 2.20127e+01 9.16449e+00 102 2006 11 1.75085e+01 7.58750e+00 80 2006 12 1.37972e+01 5.73147e+00 37 2007 1 1.44460e+01 7.55325e+00 183 2007 2 1.49653e+01 8.62350e+00 66 2007 3 1.78628e+01 9.99195e+00 123 2007 4 2.42531e+01 1.14506e+01 132 2007 5 2.46119e+01 1.31810e+01 55 2007 6 2.79983e+01 1.27946e+01 130 2007 7 3.21586e+01 1.33627e+01 149 2007 8 1.97771e+01 1.13736e+01 42 2007 9 2.91454e+01 1.30000e+01 46 2007 10 1.83978e+01 8.53857e+00 51 2007 11 1.27111e+01 7.23114e+00 103 2007 12 1.59808e+01 7.74774e+00 83 2008 1 1.35390e+01 6.55841e+00 73 2008 2 1.60440e+01 9.19291e+00 71 2008 3 2.38700e+01 1.27879e+01 81 2008 4 3.22388e+01 1.18030e+01 138 2008 5 2.66517e+01 1.39378e+01 161 2008 6 2.82932e+01 1.32064e+01 96 2008 7 2.96972e+01 1.31962e+01 77 2008 8 2.42225e+01 1.40867e+01 91 2008 9 1.53582e+01 1.12204e+01 64 2008 10 2.33170e+01 1.08347e+01 92 2008 11 1.72469e+01 7.76255e+00 119 2008 12 1.05298e+01 6.42952e+00 62 2009 1 9.75400e+00 7.17070e+00 104 2009 2 1.51221e+01 1.06146e+01 91 2009 3 1.85945e+01 9.21257e+00 131 2009 4 2.78905e+01 1.06761e+01 219 2009 5 2.48664e+01 1.12227e+01 97 2009 6 3.07461e+01 1.27984e+01 128 2009 7 2.51428e+01 1.08769e+01 136 2009 8 2.51583e+01 1.26716e+01 114 2009 9 2.33122e+01 1.24934e+01 46 2009 10 1.95751e+01 9.72100e+00 140 2009 11 1.56301e+01 7.89582e+00 157 2009 12 1.60539e+01 5.74777e+00 67 2010 1 9.77682e+00 7.57725e+00 56 2010 2 1.79735e+01 6.73901e+00 63 2010 3 1.98782e+01 1.09518e+01 118 2010 4 2.02004e+01 1.37481e+01 78 2010 5 2.57851e+01 1.31409e+01 81 2010 6 3.01424e+01 1.49723e+01 219 2010 7 2.51586e+01 1.22943e+01 52 2010 8 2.88475e+01 1.21536e+01 88 2010 9 2.55514e+01 9.94659e+00 65 2010 10 1.60699e+01 9.67453e+00 224 2010 11 1.66643e+01 8.78582e+00 165 2010 12 1.21398e+01 7.19210e+00 106 2011 1 9.66159e+00 6.96881e+00 43 2011 2 1.41748e+01 9.55960e+00 114 2011 3 1.91796e+01 1.03495e+01 106 2011 4 2.37282e+01 1.06642e+01 93 2011 5 2.81090e+01 1.31882e+01 144 2011 6 3.34602e+01 1.32588e+01 130 2011 7 3.14393e+01 1.34260e+01 151 2011 8 1.93546e+01 1.33019e+01 29 2011 9 2.69057e+01 1.14024e+01 142 2011 10 2.34417e+01 1.09598e+01 79 2011 11 1.67831e+01 7.55079e+00 110 2011 12 1.21187e+01 7.08399e+00 138 2012 1 8.17453e+00 5.21326e+00 46 2012 2 1.63242e+01 1.01876e+01 92 2012 3 2.05415e+01 9.79052e+00 91 2012 4 2.34257e+01 1.17713e+01 152 2012 5 2.75859e+01 1.19813e+01 158 2012 6 2.22771e+01 1.49651e+01 78 2012 7 2.32999e+01 1.35165e+01 96 2012 8 2.17673e+01 1.27316e+01 113 2012 9 2.39757e+01 1.17761e+01 141 2012 10 1.89673e+01 9.35278e+00 127 2012 11 1.45654e+01 8.81380e+00 78 2012 12 1.45760e+01 7.24332e+00 90 2013 1 1.68355e+01 7.43410e+00 99 2013 2 1.73570e+01 8.94790e+00 190 2013 3 2.50541e+01 1.27698e+01 156 2013 4 2.45164e+01 1.28847e+01 116 2013 5 2.21055e+01 1.37952e+01 70 2013 6 3.10701e+01 9.86370e+00 42 2013 7 2.58132e+01 1.38371e+01 85 2013 8 2.26692e+01 1.31908e+01 19 2013 9 2.41099e+01 1.09420e+01 45 2013 10 2.20499e+01 9.50629e+00 147 2013 11 1.32031e+01 7.37715e+00 59 2013 12 1.39526e+01 7.53271e+00 54 2014 1 1.46107e+01 7.22271e+00 95 2014 2 1.83434e+01 9.64580e+00 156 2014 3 2.12970e+01 1.00184e+01 95 2014 4 2.12440e+01 1.25906e+01 97 2014 5 2.96040e+01 1.15443e+01 48 2014 6 2.73606e+01 1.41056e+01 114 2014 7 2.36046e+01 1.28600e+01 110 2014 8 2.88051e+01 1.24868e+01 165 2014 9 1.78116e+01 1.04092e+01 29 2014 10 2.13184e+01 8.95903e+00 153 2014 11 1.44953e+01 7.93796e+00 77 2014 12 1.35928e+01 5.93745e+00 50 2015 1 1.64883e+01 8.42087e+00 201 2015 2 1.53745e+01 1.04904e+01 95 2015 3 1.92608e+01 9.31420e+00 140 2015 4 2.74546e+01 1.30283e+01 89 2015 5 3.20583e+01 1.18767e+01 98 2015 6 2.99603e+01 1.40861e+01 121 2015 7 2.31736e+01 1.43345e+01 97 2015 8 1.70248e+01 1.11419e+01 86 2015 9 1.32255e+01 8.82778e+00 48 2015 10 2.01882e+01 8.97329e+00 141 2015 11 1.39678e+01 9.61310e+00 67 2015 12 1.43625e+01 7.49979e+00 111 2016 1 1.62535e+01 6.94318e+00 61 2016 2 1.49608e+01 9.28150e+00 102 2016 3 2.05852e+01 1.09606e+01 77 2016 4 2.50052e+01 1.29634e+01 89 2016 5 2.50797e+01 1.18439e+01 68 2016 6 3.16719e+01 1.15762e+01 89 2016 7 2.37451e+01 1.28227e+01 49 2016 8 3.02677e+01 1.20475e+01 55 2016 9 2.58642e+01 1.22177e+01 168 2016 10 2.13611e+01 8.98314e+00 60 2016 11 1.14950e+01 6.18742e+00 72 2016 12 1.30194e+01 6.66418e+00 117 2017 1 1.13599e+01 6.69340e+00 60 2017 2 1.59700e+01 1.00449e+01 113 2017 3 2.05620e+01 1.08381e+01 226 2017 4 2.54365e+01 1.31525e+01 74 2017 5 2.89956e+01 1.33688e+01 180 2017 6 2.55370e+01 1.36534e+01 76 2017 7 2.25893e+01 1.35946e+01 77 2017 8 2.69398e+01 1.41906e+01 109 2017 9 1.77443e+01 9.38375e+00 69 2017 10 1.40690e+01 8.70602e+00 42 2017 11 1.24700e+01 7.64263e+00 158 2017 12 1.32191e+01 6.98580e+00 147 2018 1 1.16406e+01 6.66017e+00 73 2018 2 1.71639e+01 9.41622e+00 165 2018 3 1.72473e+01 1.26048e+01 219 2018 4 2.42442e+01 1.33006e+01 195 2018 5 1.36945e+01 5.78307e+00 24 2018 6 2.93839e+01 1.38614e+01 64 2018 7 2.52012e+01 1.22768e+01 221 2018 8 2.88705e+01 1.27277e+01 134 2018 9 1.41465e+01 1.12967e+01 114 2018 10 1.70589e+01 8.43885e+00 56 2018 11 1.46953e+01 7.76262e+00 51 2018 12 7.98182e+00 5.43209e+00 63 2019 1 1.23624e+01 8.72334e+00 96 2019 2 1.38462e+01 9.17639e+00 131 2019 3 1.63344e+01 1.16231e+01 128 2019 4 2.15069e+01 1.17999e+01 159 2019 5 2.35831e+01 1.47829e+01 58 2019 6 2.53783e+01 1.21520e+01 192 2019 7 2.43897e+01 1.21372e+01 111 2019 8 2.66697e+01 1.17105e+01 67 2019 9 2.46528e+01 1.16823e+01 168 2019 10 1.79158e+01 9.13640e+00 102 2019 11 1.62286e+01 7.20429e+00 140 2019 12 7.57821e+00 5.15195e+00 46 2020 1 1.16626e+01 6.98435e+00 145 2020 2 1.56458e+01 8.95352e+00 87 2020 3 2.30265e+01 1.21496e+01 233 2020 4 2.68450e+01 1.35307e+01 128 2020 5 2.70205e+01 1.34227e+01 145 2020 6 2.32787e+01 1.35491e+01 63 2020 7 2.33691e+01 1.28954e+01 80 2020 8 3.03789e+01 1.49636e+01 144 2020 9 2.30885e+01 1.14826e+01 37 2020 10 1.77783e+01 9.26254e+00 97 2020 11 1.53150e+01 6.83542e+00 55 2020 12 1.08972e+01 7.27436e+00 65 2021 1 1.21591e+01 8.15660e+00 46 2021 2 1.74636e+01 1.06596e+01 125 2021 3 1.90616e+01 1.18377e+01 226 2021 4 2.93118e+01 1.15151e+01 123 2021 5 2.81887e+01 1.05230e+01 113 2021 6 3.12604e+01 1.32702e+01 73 2021 7 2.10692e+01 1.26364e+01 219 2021 8 2.65143e+01 1.22372e+01 59 2021 9 2.19893e+01 1.32544e+01 160 2021 10 1.60709e+01 1.04473e+01 73 2021 11 1.48218e+01 7.85009e+00 166 2021 12 1.34764e+01 7.16797e+00 183 2022 1 1.21359e+01 7.15670e+00 133 2022 2 1.60160e+01 9.72061e+00 124 2022 3 1.75468e+01 1.25446e+01 126 2022 4 1.80156e+01 1.23934e+01 36 2022 5 2.31716e+01 1.44627e+01 219 2022 6 2.42086e+01 1.37071e+01 130 2022 7 1.95537e+01 9.22794e+00 111 2022 8 2.42859e+01 1.46759e+01 167 2022 9 2.03369e+01 1.09848e+01 131 2022 10 1.64162e+01 9.71849e+00 135 2022 11 1.05347e+01 7.88384e+00 107 2022 12 1.22754e+01 6.80774e+00 137 2023 1 9.49377e+00 6.39975e+00 73 2023 2 1.46102e+01 8.49467e+00 110 2023 3 2.19480e+01 1.27312e+01 254 2023 4 1.61350e+01 1.13337e+01 89 2023 5 2.69160e+01 1.32316e+01 176 2023 6 2.55495e+01 1.32140e+01 71 2023 7 2.76169e+01 1.49910e+01 120 2023 8 3.16106e+01 1.26395e+01 89 2023 9 1.43167e+01 1.01660e+01 75 2023 10 2.18880e+01 1.03640e+01 157 2023 11 1.32728e+01 7.69633e+00 43 2023 12 9.68807e+00 6.76599e+00 52 2024 1 1.96206e+01 8.19631e+00 76 2024 2 1.62937e+01 9.69814e+00 66 2024 3 2.11658e+01 1.36100e+01 126 2024 4 nan nan 0