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 9.59878e+00 1.39712e+00 29 2002 8 1.23978e+01 7.55415e+00 67 2002 9 7.52049e-01 2.65409e+00 56 2002 10 1.35443e+00 1.73086e+00 166 2002 11 1.26459e-01 4.24402e-01 207 2002 12 1.08550e+00 1.35404e+00 142 2003 1 2.79234e-01 3.47497e-01 219 2003 2 3.01440e+00 1.79758e+00 140 2003 3 2.76684e+00 3.57897e+00 64 2003 4 3.94649e+00 2.91471e+00 135 2003 5 1.37190e-01 3.25423e-01 54 2003 6 7.26480e+00 3.85762e+00 63 2003 7 2.59040e+00 3.65527e+00 49 2003 8 1.17219e+00 8.26032e-01 16 2003 9 6.20845e-01 9.52832e-01 48 2003 10 2.31413e+00 2.83899e+00 176 2003 11 1.50094e+00 1.88129e+00 187 2003 12 6.15769e+00 4.85629e+00 190 2004 1 7.92491e+00 4.17077e+00 119 2004 2 1.58579e+00 1.33629e+00 43 2004 3 7.24680e+00 5.25855e+00 152 2004 4 1.36736e+01 6.05987e+00 173 2004 5 1.65139e+01 3.77522e+00 141 2004 6 2.31343e+01 1.57760e+00 8 2004 7 9.74913e+00 5.09585e+00 56 2004 8 1.50756e+01 3.37462e+00 60 2004 9 3.56454e+00 4.13296e+00 82 2004 10 3.08468e+00 5.06884e+00 138 2004 11 6.21422e-01 9.21827e-01 137 2004 12 8.37272e-01 1.04531e+00 125 2005 1 1.53597e+00 1.77209e+00 167 2005 2 4.04609e+00 2.48328e+00 78 2005 3 3.06500e+00 2.57741e+00 175 2005 4 1.33467e+00 2.18560e+00 66 2005 5 4.93589e+00 4.26591e+00 85 2005 6 6.33876e+00 7.19630e+00 94 2005 7 1.77456e+00 1.90721e+00 64 2005 8 2.12684e-03 4.19582e-03 12 2005 9 1.60624e+00 2.41113e+00 109 2005 10 1.81553e+00 1.91775e+00 193 2005 11 1.22468e+00 1.09009e+00 183 2005 12 1.03122e+00 8.19609e-01 119 2006 1 9.89541e-01 1.24633e+00 146 2006 2 1.78638e+00 1.84451e+00 160 2006 3 9.26765e+00 5.74193e+00 170 2006 4 1.14112e+01 3.40992e+00 125 2006 5 1.63777e+01 6.60604e+00 147 2006 6 1.97291e+01 3.30164e+00 62 2006 7 1.02387e+01 5.61678e+00 48 2006 8 9.56536e+00 1.08803e+01 65 2006 9 7.20905e+00 5.03821e+00 139 2006 10 5.80490e+00 3.80926e+00 176 2006 11 5.33282e+00 3.96535e+00 235 2006 12 6.32929e+00 5.40484e+00 158 2007 1 3.44014e+00 1.25964e+00 95 2007 2 3.61097e+00 2.26878e+00 173 2007 3 1.38677e+01 5.28845e+00 204 2007 4 9.79134e+00 5.01231e+00 151 2007 5 1.54248e+01 5.58697e+00 80 2007 6 1.38790e+01 3.22842e+00 60 2007 7 1.27353e+01 3.99862e+00 80 2007 8 1.71235e+01 5.18536e+00 96 2007 9 3.14307e+00 1.88211e+00 96 2007 10 1.40427e+00 2.07584e+00 94 2007 11 3.03224e+00 3.34808e+00 230 2007 12 2.40584e+00 2.34543e+00 83 2008 1 5.39466e+00 5.28932e+00 151 2008 2 5.09306e+00 3.82114e+00 252 2008 3 1.64372e+00 3.02862e+00 148 2008 4 5.91223e+00 2.98833e+00 134 2008 5 6.50675e+00 3.68959e+00 112 2008 6 1.06524e+01 9.18633e+00 116 2008 7 1.54312e+01 8.87988e+00 32 2008 8 1.90669e+01 2.22019e+00 25 2008 9 7.56360e-01 9.82599e-01 86 2008 10 2.21679e+00 2.59678e+00 203 2008 11 6.00830e+00 4.18231e+00 232 2008 12 3.60746e+00 3.50390e+00 165 2009 1 5.62708e+00 5.31296e+00 135 2009 2 6.13012e+00 4.10346e+00 189 2009 3 1.01458e+01 3.40270e+00 135 2009 4 2.05143e-01 3.06662e-01 88 2009 5 6.52031e+00 6.69247e+00 67 2009 6 1.27076e+01 2.39459e+00 48 2009 7 1.32158e+01 5.45203e+00 63 2009 8 2.38096e+01 9.04901e+00 65 2009 9 6.14720e+00 5.13824e+00 123 2009 10 3.78791e+00 3.88965e+00 197 2009 11 1.06532e+00 1.21377e+00 167 2009 12 3.90055e-02 7.26253e-02 33 2010 1 1.12569e+00 1.87525e+00 146 2010 2 1.77875e+00 3.41854e+00 132 2010 3 2.11429e+00 3.46438e+00 150 2010 4 4.88709e-01 5.98113e-01 176 2010 5 4.24264e+00 4.80402e+00 72 2010 6 1.70881e+01 7.12965e+00 106 2010 7 6.51374e+00 5.39344e+00 44 2010 8 nan nan 0 2010 9 1.10312e+01 5.68790e+00 150 2010 10 8.32270e+00 5.70790e+00 332 2010 11 5.65849e+00 4.34118e+00 184 2010 12 3.01308e+00 3.47303e+00 190 2011 1 2.77214e+00 2.24675e+00 168 2011 2 2.78927e+00 2.48382e+00 224 2011 3 9.15786e+00 3.09308e+00 163 2011 4 1.06916e+01 4.06586e+00 132 2011 5 1.15062e+01 6.65550e+00 120 2011 6 1.38560e+01 3.15071e+00 108 2011 7 1.47586e+01 2.09226e+00 31 2011 8 1.48259e+01 5.01200e+00 134 2011 9 9.27842e+00 7.20351e+00 194 2011 10 4.09111e+00 3.94753e+00 259 2011 11 7.98522e+00 4.09487e+00 224 2011 12 4.34775e+00 2.68945e+00 174 2012 1 5.06706e+00 3.35607e+00 192 2012 2 1.67109e+01 5.60897e+00 54 2012 3 9.60355e+00 4.27681e+00 186 2012 4 1.31703e+01 5.27925e+00 209 2012 5 1.85843e+01 5.24512e+00 140 2012 6 9.09186e+00 9.98360e+00 76 2012 7 1.61002e+01 8.04656e+00 62 2012 8 2.40500e+01 2.95950e-01 16 2012 9 2.25080e-03 2.38182e-03 20 2012 10 3.63704e+00 4.67665e+00 223 2012 11 4.11285e+00 3.57776e+00 276 2012 12 6.80578e+00 7.26390e+00 130 2013 1 7.66725e+00 5.70520e+00 101 2013 2 8.16580e+00 4.27514e+00 97 2013 3 3.25223e+00 4.77602e+00 161 2013 4 1.46299e+00 1.21330e+00 84 2013 5 1.06891e+01 5.55771e+00 105 2013 6 1.25961e+01 8.21184e+00 58 2013 7 2.03918e+01 1.76390e+00 16 2013 8 8.08747e+00 3.68231e+00 32 2013 9 8.25840e+00 6.48829e+00 91 2013 10 3.21285e+00 5.92609e+00 102 2013 11 5.41158e+00 5.23144e+00 154 2013 12 4.19235e+00 4.21421e+00 120 2014 1 2.66413e+00 4.22101e+00 119 2014 2 6.58087e+00 5.26069e+00 153 2014 3 1.75035e+00 2.40738e+00 114 2014 4 5.05483e+00 3.70408e+00 68 2014 5 2.30556e+00 2.23492e+00 58 2014 6 2.32674e+00 3.12259e+00 41 2014 7 1.36154e+01 4.09453e+00 78 2014 8 1.80632e+01 7.17957e+00 70 2014 9 1.21376e+01 7.15451e+00 94 2014 10 6.28793e+00 5.27259e+00 337 2014 11 6.94592e+00 4.26436e+00 197 2014 12 5.16862e+00 5.37127e+00 196 2015 1 7.89637e-01 9.49375e-01 159 2015 2 1.78232e+00 2.48409e+00 179 2015 3 5.31312e+00 5.82520e+00 119 2015 4 6.28564e+00 5.47932e+00 48 2015 5 1.17423e+01 6.39972e+00 166 2015 6 6.48616e+00 3.06219e+00 102 2015 7 1.35764e+01 6.23593e+00 60 2015 8 6.23205e+00 4.11564e+00 67 2015 9 4.07995e+00 4.10033e+00 96 2015 10 3.73897e-01 4.87341e-01 140 2015 11 1.51202e+00 2.21944e+00 164 2015 12 2.24035e-02 3.34926e-02 107 2016 1 4.68690e-01 1.10331e+00 185 2016 2 1.23454e+00 2.70163e+00 209 2016 3 2.99031e+00 3.49657e+00 175 2016 4 2.54163e-01 4.38550e-01 62 2016 5 5.89251e+00 6.43167e+00 110 2016 6 1.72930e+01 4.08276e+00 129 2016 7 9.67842e+00 6.23564e+00 140 2016 8 9.83477e+00 7.10317e+00 88 2016 9 5.82976e+00 4.86087e+00 127 2016 10 6.80103e+00 5.87396e+00 244 2016 11 8.82792e+00 4.97267e+00 183 2016 12 6.84764e+00 5.83062e+00 170 2017 1 4.68985e+00 4.19158e+00 162 2017 2 2.87999e+00 2.27458e+00 224 2017 3 3.04072e+00 2.63015e+00 158 2017 4 7.93705e+00 5.64322e+00 125 2017 5 8.43591e+00 6.90911e+00 127 2017 6 1.25679e+01 4.21101e+00 48 2017 7 1.04913e+01 7.63146e+00 96 2017 8 7.25784e+00 9.14368e+00 47 2017 9 6.52891e+00 7.68728e+00 84 2017 10 2.21531e+00 3.43474e+00 201 2017 11 4.76886e+00 3.43964e+00 258 2017 12 2.25868e+00 2.16561e+00 124 2018 1 1.27179e+01 6.50612e+00 208 2018 2 1.14608e+01 6.60877e+00 120 2018 3 1.04838e+01 7.11247e+00 216 2018 4 8.37093e+00 3.85693e+00 176 2018 5 9.51457e+00 8.10273e+00 83 2018 6 1.62365e+01 4.88520e+00 54 2018 7 8.87467e+00 4.85519e+00 96 2018 8 8.44765e+00 9.82683e+00 42 2018 9 5.50822e+00 7.99247e+00 128 2018 10 2.61223e+00 5.46545e+00 201 2018 11 5.02444e-01 1.08344e+00 81 2018 12 7.83895e-02 1.31809e-01 98 2019 1 3.88132e-01 1.07191e+00 210 2019 2 3.20241e+00 5.52690e+00 70 2019 3 2.07759e+00 1.71032e+00 169 2019 4 3.01860e+00 2.73165e+00 79 2019 5 5.87614e+00 4.52931e+00 179 2019 6 1.32184e+01 8.65176e+00 80 2019 7 9.11073e+00 7.22818e+00 52 2019 8 1.55844e+01 8.03683e+00 79 2019 9 8.95798e+00 7.32802e+00 140 2019 10 6.91004e+00 4.70770e+00 128 2019 11 2.21341e+00 1.68196e+00 157 2019 12 1.52136e+00 1.58742e+00 101 2020 1 3.24056e+00 3.78312e+00 121 2020 2 3.04039e+00 2.21731e+00 137 2020 3 2.03465e+00 3.12665e+00 177 2020 4 2.66219e+00 2.27277e+00 117 2020 5 6.26597e+00 5.56529e+00 114 2020 6 1.00774e+01 9.52531e+00 72 2020 7 1.22326e+01 8.69879e+00 48 2020 8 1.90125e+01 7.50178e+00 48 2020 9 4.36108e-16 1.74443e-15 17 2020 10 1.66092e+00 5.43994e+00 133 2020 11 4.31972e-01 1.19098e+00 177 2020 12 1.47659e+00 1.99678e+00 171 2021 1 2.13108e-01 4.41480e-01 99 2021 2 3.30129e+00 4.76699e+00 128 2021 3 1.49442e+00 1.70082e+00 112 2021 4 5.85276e+00 4.52685e+00 154 2021 5 5.15734e+00 4.91111e+00 95 2021 6 7.43694e+00 8.08415e+00 65 2021 7 7.29498e+00 4.97024e+00 81 2021 8 1.52078e+00 2.31112e+00 53 2021 9 1.22299e+00 2.78632e+00 34 2021 10 1.65442e-08 2.39297e-08 18 2021 11 8.99347e-01 1.49577e+00 186 2021 12 2.20081e+00 3.05909e+00 128 2022 1 2.15697e+00 1.56056e+00 173 2022 2 6.48985e+00 4.82825e+00 144 2022 3 1.14455e+01 4.16592e+00 213 2022 4 3.04010e+00 3.10428e+00 32 2022 5 9.73615e+00 7.87548e+00 72 2022 6 1.54178e+01 5.25353e+00 79 2022 7 1.43581e+01 5.15705e+00 108 2022 8 9.98750e+00 7.77611e+00 127 2022 9 5.53449e+00 5.11054e+00 98 2022 10 4.14401e+00 2.83054e+00 285 2022 11 6.56919e+00 1.51583e+01 122 2022 12 4.43632e+00 3.88468e+00 197 2023 1 6.85047e+00 3.89207e+00 188 2023 2 7.74306e+00 3.01677e+00 144 2023 3 1.12591e+01 5.99925e+00 140 2023 4 1.39024e+01 6.04292e+00 114 2023 5 1.59747e+01 5.60679e+00 80 2023 6 1.92351e+01 3.41656e+00 49 2023 7 1.25365e+01 6.45465e+00 44 2023 8 3.08689e+00 2.94247e+00 81 2023 9 6.18804e+00 5.32002e+00 157 2023 10 3.59441e+00 4.36721e+00 160 2023 11 1.35859e+00 1.45836e+00 142 2023 12 5.01394e-01 6.48517e-01 80 2024 1 2.29420e-01 3.62400e-01 112 2024 2 1.78735e+00 1.78975e+00 144 2024 3 4.76668e+00 3.98287e+00 96 2024 4 1.57900e-01 1.53868e-01 32