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 7.93400e+00 7.62725e+00 64 2002 8 2.68227e+00 5.74971e-01 96 2002 9 4.63081e+00 2.11780e+00 144 2002 10 5.24493e+00 5.99166e+00 176 2002 11 6.74656e+00 8.11671e+00 237 2002 12 6.96193e+00 3.38695e+00 168 2003 1 4.99301e+00 1.23504e+00 231 2003 2 4.41291e+00 2.62082e+00 144 2003 3 2.10419e+01 1.64195e+01 61 2003 4 8.49121e+00 4.88099e+00 161 2003 5 1.33651e+01 1.08028e+01 48 2003 6 3.58392e+00 2.78124e+00 48 2003 7 5.05949e+00 4.13908e+00 32 2003 8 9.42096e+00 6.73985e+00 74 2003 9 7.02633e+00 4.26982e+00 176 2003 10 4.55006e+00 3.01204e+00 208 2003 11 4.59614e+00 1.83581e+00 304 2003 12 4.54175e+00 1.46418e+00 224 2004 1 3.22786e+00 8.29178e-01 107 2004 2 1.83573e+01 2.13357e+01 58 2004 3 5.65589e+00 2.27123e+00 192 2004 4 3.37070e+00 1.13058e+00 144 2004 5 2.51756e+00 5.33528e-01 154 2004 6 1.93496e+00 4.86584e-01 108 2004 7 6.48067e+00 5.33825e+00 64 2004 8 3.08496e+00 1.28983e+00 90 2004 9 3.92530e+00 8.94146e-01 144 2004 10 3.67515e+00 2.38593e+00 138 2004 11 9.32792e+00 4.73768e+00 192 2004 12 8.43250e+00 2.74784e+00 138 2005 1 5.05058e+00 2.93652e+00 208 2005 2 8.34211e+00 5.38691e+00 140 2005 3 6.79795e+00 3.98033e+00 192 2005 4 1.83291e+01 1.55862e+01 66 2005 5 5.08653e+00 5.26058e+00 144 2005 6 4.82483e+00 3.91776e+00 112 2005 7 4.02054e+00 1.71458e+00 96 2005 8 1.05939e+01 1.49868e+01 17 2005 9 4.55376e+00 3.36888e+00 80 2005 10 4.89030e+00 2.60795e+00 240 2005 11 3.11784e+00 7.31884e-01 240 2005 12 4.10780e+00 2.38516e+00 208 2006 1 4.25734e+00 1.40823e+00 172 2006 2 4.14690e+00 3.76005e+00 169 2006 3 5.71226e+00 3.13898e+00 287 2006 4 2.76055e+00 1.12768e+00 192 2006 5 1.87627e+00 6.56466e-01 169 2006 6 1.91561e+00 4.45714e-01 112 2006 7 2.79592e+00 6.17384e-01 127 2006 8 4.37719e+00 6.15799e+00 143 2006 9 3.57035e+00 6.36062e-01 154 2006 10 2.97899e+00 8.78034e-01 224 2006 11 2.42514e+00 2.59323e-01 208 2006 12 2.68264e+00 1.68426e+00 123 2007 1 4.53230e+00 2.68532e+00 86 2007 2 8.87211e+00 1.30001e+01 215 2007 3 4.78308e+00 4.14859e+00 316 2007 4 2.10728e+00 4.69695e-01 187 2007 5 1.73392e+00 2.54318e-01 144 2007 6 2.09459e+00 3.78889e-01 112 2007 7 2.87089e+00 4.87932e-01 123 2007 8 3.48124e+00 7.26488e-01 128 2007 9 3.83296e+00 1.28403e+00 176 2007 10 2.01633e+00 4.31066e-01 147 2007 11 1.90999e+00 4.23812e-01 285 2007 12 2.19698e+00 7.56003e-01 160 2008 1 1.92401e+00 3.71671e-01 228 2008 2 2.05934e+00 7.82830e-01 272 2008 3 1.18509e+01 1.81732e+01 220 2008 4 5.38209e+00 3.66288e+00 192 2008 5 3.34770e+00 7.31657e-01 144 2008 6 3.19292e+00 1.18945e+00 115 2008 7 1.91385e+00 6.31164e-01 32 2008 8 3.26930e+00 2.35138e+00 64 2008 9 8.44899e+00 7.88240e+00 145 2008 10 5.89892e+00 3.64337e+00 272 2008 11 7.36631e+00 9.35941e+00 259 2008 12 6.36891e+00 3.63580e+00 195 2009 1 4.36088e+00 1.60942e+00 160 2009 2 3.26635e+00 7.75703e-01 239 2009 3 2.12737e+00 4.57579e-01 176 2009 4 1.03032e+01 8.82310e+00 138 2009 5 4.90401e+00 1.37799e+00 80 2009 6 3.04657e+00 7.62359e-01 66 2009 7 3.00482e+00 7.77220e-01 96 2009 8 3.22339e+00 1.64937e+00 112 2009 9 5.45704e+00 4.57927e+00 180 2009 10 5.22341e+00 3.28017e+00 221 2009 11 7.07384e+00 6.30072e+00 192 2009 12 1.71759e+01 1.83821e+01 64 2010 1 1.14494e+01 1.30370e+01 208 2010 2 7.88022e+00 7.40680e+00 209 2010 3 7.40988e+00 7.04993e+00 189 2010 4 1.35419e+01 1.00807e+01 237 2010 5 5.73753e+00 4.58078e+00 144 2010 6 3.90754e+00 2.29929e+00 174 2010 7 4.40780e+00 1.29129e+00 80 2010 8 3.05308e+00 1.23791e+00 65 2010 9 3.27099e+00 8.89912e-01 224 2010 10 3.36960e+00 3.34015e+00 320 2010 11 2.34793e+00 4.87644e-01 288 2010 12 2.52581e+00 1.20545e+00 213 2011 1 1.97543e+00 3.64544e-01 208 2011 2 1.91325e+00 5.38611e-01 147 2011 3 2.27632e+00 5.10355e-01 216 2011 4 2.90799e+00 1.67036e+00 208 2011 5 2.58985e+00 1.16565e+00 214 2011 6 3.39300e+00 1.23835e+00 138 2011 7 2.06691e+00 3.65393e-01 80 2011 8 2.47913e+00 7.51564e-01 176 2011 9 2.73791e+00 8.06178e-01 163 2011 10 2.80167e+00 8.33028e-01 288 2011 11 2.24044e+00 3.23083e-01 208 2011 12 1.84373e+00 3.77269e-01 283 2012 1 2.08544e+00 4.27653e-01 224 2012 2 1.86253e+00 2.53118e-01 74 2012 3 1.73213e+00 7.50352e-01 208 2012 4 1.93125e+00 4.83718e-01 244 2012 5 1.69899e+00 2.37806e-01 143 2012 6 8.97787e+00 1.35825e+01 94 2012 7 1.29386e+01 1.15122e+01 110 2012 8 5.05544e+00 2.70082e+00 80 2012 9 7.02983e+00 6.08394e+00 127 2012 10 8.42554e+00 5.78208e+00 208 2012 11 6.85060e+00 5.87840e+00 231 2012 12 3.96072e+00 5.00571e-01 112 2013 1 2.35359e+00 6.74276e-01 118 2013 2 2.23858e+00 3.00352e-01 144 2013 3 7.09325e+00 4.26265e+00 223 2013 4 7.00070e+00 2.09617e+00 96 2013 5 4.47487e+00 1.47071e+00 84 2013 6 3.67667e+00 8.96551e-01 105 2013 7 1.18063e+01 6.22895e+00 32 2013 8 5.36415e+00 4.86752e+00 43 2013 9 8.44531e+00 1.12469e+01 169 2013 10 5.49433e+00 6.55323e+00 192 2013 11 6.92268e+00 3.20823e+00 112 2013 12 5.06456e+00 2.48095e+00 172 2014 1 8.18102e+00 4.27217e+00 128 2014 2 5.61145e+00 3.08844e+00 164 2014 3 1.20166e+01 5.67352e+00 180 2014 4 9.56294e+00 4.03128e+00 128 2014 5 1.05658e+01 1.17767e+01 112 2014 6 2.45277e+00 2.70101e+00 103 2014 7 2.92581e+00 6.04948e-01 99 2014 8 2.25365e+00 4.46766e-01 164 2014 9 3.19312e+00 1.82640e+00 158 2014 10 3.24467e+00 1.01571e+00 304 2014 11 2.79567e+00 9.47536e-01 208 2014 12 3.31243e+00 1.50169e+00 224 2015 1 7.41228e+00 2.28565e+00 180 2015 2 8.18183e+00 3.91944e+00 176 2015 3 7.31859e+00 2.71495e+00 112 2015 4 6.48144e+00 2.26675e+00 64 2015 5 6.14069e+00 4.10622e+00 176 2015 6 4.62089e+00 2.40704e+00 127 2015 7 3.65184e+00 7.63881e-01 70 2015 8 2.81744e+00 7.80424e-01 82 2015 9 3.78499e+00 2.18831e+00 135 2015 10 3.25017e+00 1.03639e+00 211 2015 11 5.12538e+00 2.30602e+00 179 2015 12 4.16373e+00 1.96097e+00 128 2016 1 6.46084e+00 1.77252e+00 192 2016 2 6.23661e+00 1.78207e+00 272 2016 3 4.60670e+00 2.16082e+00 240 2016 4 6.20637e+00 3.11890e+00 92 2016 5 3.77016e+00 1.22221e+00 113 2016 6 2.49788e+00 4.93417e-01 163 2016 7 3.68304e+00 2.27068e+00 195 2016 8 4.99248e+00 2.64679e+00 157 2016 9 3.67799e+00 2.96262e+00 240 2016 10 7.27818e+00 1.13962e+01 264 2016 11 3.01678e+00 1.41880e+00 188 2016 12 2.75786e+00 6.36587e-01 192 2017 1 2.95056e+00 9.74416e-01 183 2017 2 6.67632e+00 7.60363e+00 271 2017 3 4.67569e+00 2.38545e+00 249 2017 4 3.18157e+00 8.09437e-01 144 2017 5 3.31955e+00 1.10734e+00 145 2017 6 3.72980e+00 8.57535e-01 48 2017 7 3.89313e+00 1.52979e+00 96 2017 8 3.69300e+00 8.15262e-01 72 2017 9 5.88190e+00 3.73178e+00 192 2017 10 4.27275e+00 1.31949e+00 247 2017 11 3.44015e+00 8.01920e-01 320 2017 12 3.07442e+00 1.09651e+00 187 2018 1 2.72349e+00 6.60239e-01 265 2018 2 3.13390e+00 1.17859e+00 80 2018 3 2.83051e+00 9.39475e-01 224 2018 4 3.99147e+00 1.25318e+00 174 2018 5 3.34300e+00 1.36376e+00 151 2018 6 5.96912e+00 5.78430e+00 71 2018 7 2.16884e+00 1.04223e+00 96 2018 8 4.12246e+00 1.65846e+00 71 2018 9 2.45805e+00 1.85582e+00 193 2018 10 7.28661e+00 6.28748e+00 333 2018 11 7.42434e+00 5.21714e+00 112 2018 12 1.16636e+01 7.11097e+00 142 2019 1 1.08762e+01 5.61242e+00 191 2019 2 1.12396e+01 4.08994e+00 64 2019 3 1.17758e+01 1.20639e+01 242 2019 4 7.64399e+00 4.90651e+00 94 2019 5 4.44495e+00 1.20138e+00 216 2019 6 2.76677e+00 9.24649e-01 73 2019 7 3.06493e+00 1.06926e+00 105 2019 8 4.72379e+00 3.94514e+00 180 2019 9 4.30467e+00 1.79200e+00 270 2019 10 4.87836e+00 2.07327e+00 155 2019 11 3.73554e+00 7.89790e-01 160 2019 12 2.86259e+00 6.79371e-01 112 2020 1 2.61047e+00 6.78144e-01 134 2020 2 2.69828e+00 5.19760e-01 160 2020 3 4.02233e+00 1.43365e+00 160 2020 4 3.50405e+00 2.93796e-01 96 2020 5 2.99390e+00 6.29445e-01 116 2020 6 8.43899e+00 8.00802e+00 96 2020 7 2.39671e+00 3.83109e-01 37 2020 8 3.96657e+00 1.43923e+00 58 2020 9 1.21662e+01 5.76712e+00 92 2020 10 1.10579e+01 6.78737e+00 200 2020 11 1.10853e+01 5.12920e+00 240 2020 12 7.10590e+00 3.15802e+00 186 2021 1 1.07590e+01 2.61930e+00 67 2021 2 9.04372e+00 3.70598e+00 128 2021 3 1.15144e+01 5.83808e+00 144 2021 4 1.60716e+01 1.26456e+01 152 2021 5 6.31461e+00 3.00671e+00 176 2021 6 2.58809e+00 6.45199e-01 47 2021 7 9.45238e+00 9.28657e+00 64 2021 8 1.06247e+01 9.83448e+00 126 2021 9 4.76199e+00 4.40915e+00 163 2021 10 2.62434e+00 1.73894e+00 60 2021 11 1.35123e+01 9.54335e+00 245 2021 12 7.93418e+00 4.81257e+00 160 2022 1 6.54307e+00 2.61664e+00 200 2022 2 3.95650e+00 1.63469e+00 181 2022 3 5.74323e+00 3.59750e+00 192 2022 4 1.38120e+01 5.59924e+00 48 2022 5 5.03386e+00 1.17260e+00 92 2022 6 3.62425e+00 2.03412e+00 186 2022 7 6.10525e+00 1.23632e+01 120 2022 8 2.69018e+00 1.52629e+00 110 2022 9 3.18040e+00 1.79931e+00 174 2022 10 4.16972e+00 2.96822e+00 318 2022 11 1.05247e+01 1.94432e+01 128 2022 12 2.79951e+00 7.20050e-01 240 2023 1 2.50245e+00 3.86140e-01 228 2023 2 2.87485e+00 6.17640e-01 160 2023 3 3.44122e+00 7.24473e-01 176 2023 4 2.26496e+00 5.05302e-01 96 2023 5 2.45574e+00 6.94194e-01 112 2023 6 2.82890e+00 1.29954e+00 128 2023 7 1.75016e+00 9.76850e-01 81 2023 8 3.47611e+00 2.19737e+00 160 2023 9 2.73701e+00 1.83490e+00 144 2023 10 3.64495e+00 1.87927e+00 272 2023 11 5.58334e+00 3.50808e+00 227 2023 12 6.15355e+00 1.05596e+00 48 2024 1 8.51776e+00 3.35469e+00 84 2024 2 8.70562e+00 7.82754e+00 128 2024 3 6.68780e+00 4.30535e+00 129 2024 4 nan nan 0