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 9.77053e+00 5.62528e+00 32 2002 8 9.15286e+00 2.93483e+00 56 2002 9 3.26797e+00 5.21882e+00 79 2002 10 3.11951e+00 2.35668e+00 76 2002 11 2.73084e+00 1.82741e+00 228 2002 12 4.68111e+00 3.04656e+00 149 2003 1 4.72492e+00 4.58543e+00 223 2003 2 8.52816e+00 4.29334e+00 108 2003 3 7.31854e-01 1.28033e+00 65 2003 4 2.25401e+00 2.02904e+00 134 2003 5 2.92858e+00 1.40842e+00 39 2003 6 4.22261e+00 2.81528e+00 43 2003 7 2.70651e+00 2.27454e+00 38 2003 8 3.36382e-01 7.19940e-01 17 2003 9 1.18334e+00 1.31389e+00 49 2003 10 7.86282e+00 3.27272e+00 155 2003 11 4.19773e+00 2.50300e+00 206 2003 12 8.68487e+00 3.81790e+00 138 2004 1 1.85801e+01 5.66899e+00 117 2004 2 5.35715e+00 4.54675e+00 57 2004 3 3.82766e+00 3.07447e+00 167 2004 4 6.64599e+00 2.97424e+00 90 2004 5 1.13283e+01 3.33816e+00 108 2004 6 1.12604e+01 3.57959e+00 27 2004 7 9.25123e+00 1.66804e+00 52 2004 8 8.75438e+00 8.84282e-01 39 2004 9 3.03246e+00 2.91378e+00 59 2004 10 2.59766e+00 2.10630e+00 89 2004 11 4.31010e+00 3.24054e+00 127 2004 12 4.79877e+00 2.28473e+00 108 2005 1 7.24515e+00 4.46532e+00 129 2005 2 9.42421e+00 3.84196e+00 131 2005 3 4.78998e+00 4.64278e+00 164 2005 4 1.81655e-02 1.08079e-02 27 2005 5 5.78686e+00 2.60527e+00 81 2005 6 6.83657e+00 1.83676e+00 34 2005 7 2.81168e+00 1.68953e+00 91 2005 8 1.81083e+00 8.38118e-01 61 2005 9 1.08787e+01 6.66723e+00 42 2005 10 1.39442e+01 5.05822e+00 206 2005 11 1.76620e+01 7.53717e+00 185 2005 12 1.01767e+01 5.39238e+00 142 2006 1 6.15494e+00 5.43850e+00 109 2006 2 6.34834e+00 4.77301e+00 179 2006 3 6.15976e+00 2.61721e+00 194 2006 4 8.46938e+00 5.43276e+00 86 2006 5 1.05540e+01 4.44913e+00 111 2006 6 1.96257e+01 1.10174e+00 12 2006 7 1.23020e+01 3.47999e+00 48 2006 8 1.39313e+01 3.30737e+00 64 2006 9 7.72706e+00 5.12629e+00 121 2006 10 1.31485e+01 5.30515e+00 191 2006 11 1.17043e+01 5.22015e+00 181 2006 12 7.52508e+00 3.96374e+00 98 2007 1 2.19779e+00 1.63388e+00 88 2007 2 3.81504e+00 3.47340e+00 179 2007 3 1.01294e+01 4.59518e+00 233 2007 4 1.28126e+01 3.55000e+00 152 2007 5 9.74968e+00 3.09923e+00 60 2007 6 9.49730e+00 6.57654e+00 26 2007 7 5.62368e+00 3.61491e+00 79 2007 8 1.02082e+01 5.63280e+00 48 2007 9 6.00160e+00 3.23362e+00 69 2007 10 1.00380e+01 2.58907e+00 96 2007 11 8.36964e+00 3.03693e+00 207 2007 12 1.29906e+01 6.86909e+00 81 2008 1 1.55354e+01 1.23464e+01 159 2008 2 8.87659e+00 4.48932e+00 210 2008 3 1.70645e+00 2.44465e+00 125 2008 4 4.44665e+00 4.31252e+00 66 2008 5 7.63700e+00 4.01214e+00 110 2008 6 7.20094e+00 4.11382e+00 35 2008 7 1.19037e+01 2.98539e+00 29 2008 8 3.69025e+00 4.05745e-01 7 2008 9 3.23079e+00 2.87737e+00 112 2008 10 5.50643e+00 4.10816e+00 213 2008 11 1.03076e+01 6.85942e+00 242 2008 12 6.66189e+00 4.41608e+00 174 2009 1 6.25841e+00 5.09040e+00 177 2009 2 9.43217e+00 3.64886e+00 196 2009 3 8.75619e+00 4.99546e+00 126 2009 4 3.22864e-01 2.10116e-01 35 2009 5 4.66082e+00 2.56556e+00 49 2009 6 nan nan 0 2009 7 9.30372e+00 1.81257e+00 24 2009 8 8.55698e+00 3.60664e+00 49 2009 9 4.10467e+00 5.31744e+00 68 2009 10 3.94733e+00 4.10591e+00 173 2009 11 4.45834e+00 2.33850e+00 124 2009 12 2.62776e-01 6.08962e-01 20 2010 1 7.53151e-01 9.93862e-01 69 2010 2 2.74517e-01 1.50003e-01 51 2010 3 1.36990e+00 8.93924e-01 132 2010 4 3.26526e+00 2.76697e+00 126 2010 5 5.68831e+00 3.63629e+00 58 2010 6 7.41126e+00 3.98600e+00 90 2010 7 1.61653e+01 8.12386e-01 16 2010 8 4.71153e+00 3.12528e+00 20 2010 9 7.81041e+00 4.03124e+00 178 2010 10 6.49029e+00 3.47193e+00 231 2010 11 9.77144e+00 5.32901e+00 247 2010 12 1.01964e+01 6.41187e+00 165 2011 1 1.15625e+01 5.45464e+00 165 2011 2 9.64493e+00 2.26418e+00 148 2011 3 7.84589e+00 4.93827e+00 157 2011 4 7.29922e+00 2.83374e+00 115 2011 5 9.78326e+00 3.46693e+00 96 2011 6 6.35222e+00 2.45215e+00 62 2011 7 8.43206e+00 1.57490e+00 62 2011 8 6.09742e+00 2.21501e+00 48 2011 9 9.76116e+00 5.52717e+00 94 2011 10 5.69966e+00 3.53519e+00 241 2011 11 4.06247e+00 6.15930e+00 157 2011 12 1.31923e+01 7.69619e+00 190 2012 1 7.26896e+00 3.63515e+00 200 2012 2 1.05030e+01 8.09390e+00 57 2012 3 7.50426e+00 4.80123e+00 149 2012 4 1.27038e+01 4.04402e+00 151 2012 5 1.05080e+01 4.96239e+00 97 2012 6 1.25104e+01 2.33803e+00 30 2012 7 3.93598e+00 4.54613e+00 66 2012 8 1.21463e-01 1.43801e-01 38 2012 9 2.38551e+00 3.46131e+00 76 2012 10 2.16131e+00 1.44718e+00 175 2012 11 1.66347e+01 9.17027e+00 184 2012 12 1.90752e+01 1.20030e+01 96 2013 1 7.52179e+00 4.44462e+00 108 2013 2 6.13978e+00 4.06940e+00 144 2013 3 5.51721e-01 7.71794e-01 81 2013 4 1.41937e+00 9.40896e-01 48 2013 5 9.71512e+00 1.96276e+00 32 2013 6 9.77366e+00 2.10673e+00 32 2013 7 2.88814e-01 4.47180e-02 16 2013 8 1.55702e+00 1.10698e+00 34 2013 9 3.26680e+00 2.99317e+00 138 2013 10 7.83065e+00 4.46072e+00 164 2013 11 9.02580e+00 6.45218e+00 103 2013 12 1.03048e+01 4.44835e+00 135 2014 1 2.15625e+00 3.79865e+00 84 2014 2 7.83363e+00 3.03251e+00 135 2014 3 2.03352e+00 2.32647e+00 143 2014 4 3.39755e-01 4.45007e-01 78 2014 5 2.17762e+00 2.32653e+00 93 2014 6 7.86919e+00 5.38214e+00 42 2014 7 9.31608e+00 7.24897e-01 47 2014 8 1.10473e+01 4.07436e+00 64 2014 9 1.73259e+01 5.08849e+00 98 2014 10 1.26656e+01 8.46055e+00 296 2014 11 8.47165e+00 4.51018e+00 198 2014 12 3.63770e+00 3.51605e+00 169 2015 1 7.92184e-01 1.00410e+00 136 2015 2 1.41365e+00 7.02993e-01 158 2015 3 6.99888e+00 2.31129e+00 63 2015 4 7.30642e+00 2.10745e+00 48 2015 5 1.13202e+01 7.85145e+00 91 2015 6 8.84259e+00 5.42491e+00 36 2015 7 8.89775e+00 3.11765e+00 48 2015 8 5.76318e+00 1.24500e+00 37 2015 9 1.13081e+01 1.21134e+01 88 2015 10 6.43981e+00 4.96524e+00 179 2015 11 5.96202e+00 5.50249e+00 125 2015 12 1.63115e+00 8.18598e-01 108 2016 1 5.45042e-01 6.61875e-01 43 2016 2 1.38770e+00 1.42314e+00 208 2016 3 3.03235e+00 2.11676e+00 121 2016 4 5.81474e-01 6.55588e-01 48 2016 5 5.99554e+00 3.48246e+00 86 2016 6 1.01412e+01 2.53024e+00 98 2016 7 1.21504e+01 6.03262e+00 126 2016 8 4.85259e+00 5.24384e+00 106 2016 9 4.17349e+00 3.17347e+00 86 2016 10 6.97146e+00 4.79789e+00 230 2016 11 1.31312e+01 8.77590e+00 193 2016 12 2.32727e+01 9.54759e+00 124 2017 1 7.61727e+00 6.00027e+00 128 2017 2 3.37382e+00 3.00488e+00 185 2017 3 6.43110e+00 4.86205e+00 194 2017 4 8.67407e+00 4.23413e+00 117 2017 5 9.19296e+00 4.52471e+00 57 2017 6 4.00169e+00 1.48004e+00 41 2017 7 4.06683e+00 1.75378e+00 49 2017 8 4.29599e+00 1.16946e+00 34 2017 9 4.89218e+00 3.41230e+00 101 2017 10 5.13027e+00 3.43636e+00 192 2017 11 1.46006e+01 7.50281e+00 288 2017 12 1.62062e+01 4.06134e+00 101 2018 1 1.62558e+01 6.71467e+00 200 2018 2 2.37577e+01 8.25245e+00 80 2018 3 6.97378e+00 3.59825e+00 195 2018 4 1.10743e+01 4.57348e+00 125 2018 5 9.93844e+00 4.39462e+00 49 2018 6 5.83423e+00 2.73729e+00 32 2018 7 8.46736e+00 2.23431e+00 60 2018 8 7.28297e+00 1.14706e+01 40 2018 9 4.13136e+00 1.86067e+00 159 2018 10 1.88029e+00 2.65031e+00 267 2018 11 3.06179e+00 2.61070e+00 96 2018 12 1.18988e+00 1.37806e+00 61 2019 1 4.90215e-01 6.88279e-01 66 2019 2 7.09884e-01 6.09472e-01 51 2019 3 3.44551e+00 1.94157e+00 188 2019 4 3.68624e+00 2.57348e+00 110 2019 5 8.99341e+00 3.19110e+00 114 2019 6 8.74852e+00 2.65623e+00 85 2019 7 8.21756e+00 1.40558e+00 37 2019 8 7.44522e+00 4.64813e+00 64 2019 9 6.80723e+00 4.66417e+00 159 2019 10 7.96966e+00 4.05395e+00 118 2019 11 8.23138e+00 4.68620e+00 148 2019 12 1.44101e+00 2.30596e+00 60 2020 1 4.95196e+00 6.36504e+00 132 2020 2 1.65165e+00 1.26194e+00 64 2020 3 6.98711e-01 1.03261e+00 93 2020 4 1.89704e+00 1.83982e+00 92 2020 5 7.29977e+00 5.72105e+00 80 2020 6 1.21318e+00 7.28561e-01 59 2020 7 1.55245e+01 2.81044e+00 29 2020 8 7.43745e+00 9.36951e-01 48 2020 9 4.49025e+00 3.88250e+00 44 2020 10 4.83926e-01 6.39457e-01 91 2020 11 5.74029e+00 6.43815e+00 214 2020 12 8.03263e+00 4.94072e+00 207 2021 1 3.07604e+00 3.40313e+00 61 2021 2 5.60240e-01 4.68280e-01 71 2021 3 2.03264e+00 1.49713e+00 122 2021 4 5.41438e+00 2.48202e+00 141 2021 5 8.25696e+00 5.01707e+00 132 2021 6 9.88631e+00 2.71087e+00 29 2021 7 3.82324e+00 1.60615e+00 36 2021 8 3.67264e+00 2.86430e+00 75 2021 9 1.29008e+00 2.15954e+00 75 2021 10 3.57859e-01 4.21079e-01 48 2021 11 6.37224e+00 3.53989e+00 243 2021 12 9.71606e+00 4.07033e+00 101 2022 1 6.34204e+00 4.43331e+00 113 2022 2 9.66013e+00 2.52427e+00 110 2022 3 3.70698e+00 4.39918e+00 176 2022 4 1.95461e+00 8.10820e-01 20 2022 5 4.38561e+00 6.41391e-01 32 2022 6 9.79892e+00 4.69402e+00 96 2022 7 8.84150e+00 4.04453e+00 82 2022 8 6.74224e+00 2.82953e+00 81 2022 9 3.37522e+00 6.74900e+00 99 2022 10 4.97260e+00 3.11301e+00 250 2022 11 9.00225e+00 4.86445e+00 156 2022 12 1.79922e+01 1.03834e+01 204 2023 1 1.30824e+01 5.58030e+00 185 2023 2 4.87864e+00 4.74752e+00 119 2023 3 4.45676e+00 2.91157e+00 118 2023 4 8.37945e+00 8.90584e+00 72 2023 5 5.73031e+00 3.92354e+00 48 2023 6 5.94053e+00 2.86898e+00 66 2023 7 6.21146e+00 2.59086e+00 32 2023 8 5.30303e+00 4.34928e+00 53 2023 9 4.11295e+00 2.30924e+00 129 2023 10 3.98319e+00 1.95401e+00 232 2023 11 9.17611e+00 6.05620e+00 131 2023 12 3.84083e-01 4.09712e-01 64 2024 1 7.09416e-01 7.51978e-01 68 2024 2 2.27603e+00 1.88538e+00 128 2024 3 2.09828e+00 1.15903e+00 64 2024 4 nan nan 0