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 3.72624e+00 8.89050e-02 17 2002 8 4.50026e+00 3.56316e-01 46 2002 9 5.93550e+00 1.86181e+00 80 2002 10 6.15416e+00 6.18899e-01 106 2002 11 8.24837e+00 7.49273e-01 141 2002 12 5.66016e+00 9.96632e-01 155 2003 1 6.25233e+00 1.23512e+00 186 2003 2 4.48176e+00 3.93422e-01 109 2003 3 1.06419e+01 3.92114e-01 44 2003 4 7.78518e+00 1.67416e+00 126 2003 5 5.90160e+00 1.03291e+00 43 2003 6 6.39721e+00 1.19923e+00 50 2003 7 9.70555e+00 1.22780e+00 48 2003 8 9.33999e+00 8.26369e-01 48 2003 9 8.52941e+00 1.53432e+00 109 2003 10 5.58357e+00 1.06615e+00 191 2003 11 5.91196e+00 1.07123e+00 224 2003 12 4.60434e+00 9.18699e-01 155 2004 1 3.61419e+00 6.15560e-01 145 2004 2 7.39375e+00 1.46698e+00 63 2004 3 5.21954e+00 9.91231e-01 176 2004 4 4.19063e+00 1.04610e+00 122 2004 5 3.53370e+00 5.14630e-01 146 2004 6 4.20661e+00 1.26183e-01 15 2004 7 4.66684e+00 4.03587e-01 64 2004 8 4.86919e+00 1.10550e+00 65 2004 9 6.58925e+00 2.17265e+00 46 2004 10 6.49634e+00 8.14102e-01 70 2004 11 5.99960e+00 8.66259e-01 159 2004 12 7.25791e+00 9.23694e-01 123 2005 1 6.16236e+00 9.36078e-01 198 2005 2 5.23634e+00 6.52296e-01 144 2005 3 5.98347e+00 1.18703e+00 175 2005 4 8.63513e+00 2.63253e-01 16 2005 5 5.62237e+00 1.30738e+00 111 2005 6 5.26325e+00 1.35868e+00 60 2005 7 7.68249e+00 1.75768e+00 96 2005 8 7.52924e+00 1.80039e+00 38 2005 9 4.95097e+00 1.18631e+00 67 2005 10 4.59363e+00 8.34904e-01 240 2005 11 4.15445e+00 1.03349e+00 222 2005 12 4.36489e+00 7.49931e-01 124 2006 1 5.49937e+00 7.23350e-01 102 2006 2 5.34929e+00 9.60379e-01 162 2006 3 5.06461e+00 8.95342e-01 240 2006 4 4.23081e+00 1.05649e+00 151 2006 5 3.71192e+00 7.73827e-01 128 2006 6 3.15679e+00 3.75520e-01 64 2006 7 3.88179e+00 6.34133e-01 48 2006 8 3.59684e+00 5.07804e-01 128 2006 9 4.55796e+00 6.70388e-01 112 2006 10 4.70459e+00 9.54740e-01 180 2006 11 3.80755e+00 1.05152e+00 137 2006 12 4.11126e+00 1.14999e+00 98 2007 1 7.91597e+00 5.95304e-01 65 2007 2 6.98363e+00 1.03838e+00 186 2007 3 4.79484e+00 5.72257e-01 254 2007 4 4.15890e+00 8.37145e-01 147 2007 5 3.87708e+00 9.70928e-01 23 2007 6 3.87406e+00 5.72009e-01 48 2007 7 3.88405e+00 5.99420e-01 112 2007 8 4.28889e+00 4.84511e-01 80 2007 9 6.64136e+00 7.54506e-01 60 2007 10 6.14196e+00 1.88529e+00 128 2007 11 4.52871e+00 1.00330e+00 247 2007 12 3.70621e+00 3.25561e-01 64 2008 1 5.10061e+00 1.27690e+00 110 2008 2 6.02148e+00 1.16080e+00 218 2008 3 8.43616e+00 1.23602e+00 172 2008 4 6.05202e+00 9.53086e-01 112 2008 5 3.91586e+00 4.78785e-01 96 2008 6 3.35496e+00 2.77541e-01 128 2008 7 3.39965e+00 2.99996e-01 53 2008 8 3.89746e+00 9.56490e-02 16 2008 9 7.68073e+00 1.31428e+00 132 2008 10 5.45008e+00 1.09450e+00 256 2008 11 4.77956e+00 9.66866e-01 250 2008 12 6.21927e+00 2.24606e+00 135 2009 1 6.12473e+00 1.15132e+00 148 2009 2 4.33009e+00 7.42666e-01 176 2009 3 4.78895e+00 1.29639e+00 125 2009 4 9.22717e+00 9.62022e-01 48 2009 5 5.03602e+00 6.39932e-01 80 2009 6 3.76576e+00 8.66548e-02 16 2009 7 3.85639e+00 4.12876e-01 37 2009 8 4.44727e+00 1.44030e-01 40 2009 9 7.28394e+00 2.91393e+00 64 2009 10 6.28317e+00 1.15131e+00 181 2009 11 7.40228e+00 1.10537e+00 160 2009 12 1.03518e+01 8.52274e-01 19 2010 1 8.29314e+00 1.07994e+00 25 2010 2 9.43069e+00 3.20549e-01 47 2010 3 6.66954e+00 8.17972e-01 153 2010 4 5.50591e+00 8.33515e-01 144 2010 5 6.07866e+00 3.01063e-01 48 2010 6 4.56301e+00 5.00625e-01 96 2010 7 4.17691e+00 1.58121e-01 64 2010 8 4.04573e+00 8.34910e-02 32 2010 9 4.44423e+00 6.86369e-01 144 2010 10 3.95351e+00 5.28928e-01 304 2010 11 3.91087e+00 7.16797e-01 272 2010 12 4.42008e+00 1.00355e+00 160 2011 1 4.81265e+00 8.10361e-01 168 2011 2 5.70429e+00 8.47793e-01 112 2011 3 5.04366e+00 7.96719e-01 128 2011 4 4.74458e+00 6.79841e-01 144 2011 5 3.56258e+00 2.68961e-01 80 2011 6 4.01256e+00 6.75196e-01 112 2011 7 4.03459e+00 4.07948e-01 80 2011 8 4.06290e+00 1.99877e-01 67 2011 9 3.94367e+00 6.80669e-01 160 2011 10 4.07782e+00 7.87025e-01 239 2011 11 5.37564e+00 1.52336e+00 102 2011 12 4.62007e+00 1.11017e+00 177 2012 1 4.20204e+00 8.95814e-01 159 2012 2 5.38898e+00 3.85091e-01 30 2012 3 5.42667e+00 8.17116e-01 144 2012 4 3.92883e+00 6.96193e-01 208 2012 5 3.32031e+00 4.97768e-01 144 2012 6 7.80822e+00 3.46935e+00 64 2012 7 5.95490e+00 9.99623e-01 80 2012 8 8.96296e+00 1.37150e+00 80 2012 9 7.70242e+00 5.71354e-01 80 2012 10 6.46263e+00 6.99235e-01 189 2012 11 3.85458e+00 6.84592e-01 224 2012 12 3.07703e+00 3.80429e-01 76 2013 1 3.78245e+00 8.34139e-01 110 2013 2 5.33361e+00 1.88407e+00 144 2013 3 9.23677e+00 1.15440e+00 84 2013 4 7.38639e+00 4.40554e-01 78 2013 5 5.58613e+00 3.28959e-01 80 2013 6 4.61407e+00 2.30313e-01 32 2013 7 nan nan 0 2013 8 9.48252e+00 1.89636e+00 74 2013 9 7.77403e+00 1.60034e+00 144 2013 10 6.36812e+00 6.99272e-01 176 2013 11 5.98729e+00 1.75136e+00 83 2013 12 5.07338e+00 1.28500e+00 130 2014 1 8.30159e+00 9.83899e-01 58 2014 2 6.67715e+00 1.12073e+00 144 2014 3 8.25932e+00 1.39237e+00 109 2014 4 8.29568e+00 7.41244e-01 48 2014 5 8.47763e+00 2.08584e+00 118 2014 6 4.98664e+00 4.97558e-01 96 2014 7 4.22193e+00 2.89084e-01 48 2014 8 4.03511e+00 4.33513e-01 84 2014 9 4.99642e+00 5.56400e-01 160 2014 10 5.19184e+00 7.22063e-01 310 2014 11 4.97866e+00 1.08141e+00 152 2014 12 5.18837e+00 1.01171e+00 172 2015 1 7.79568e+00 1.55021e+00 146 2015 2 7.60565e+00 1.11681e+00 141 2015 3 5.94051e+00 6.18859e-01 144 2015 4 4.28779e+00 2.44776e-01 48 2015 5 6.01605e+00 1.35415e+00 144 2015 6 5.01144e+00 4.29118e-01 43 2015 7 4.36751e+00 4.09868e-01 64 2015 8 4.26211e+00 3.89314e-01 98 2015 9 5.93474e+00 7.66329e-01 86 2015 10 4.68615e+00 5.52683e-01 131 2015 11 8.17412e+00 2.08728e+00 188 2015 12 7.89564e+00 1.21689e+00 114 2016 1 9.80354e+00 3.86281e-01 20 2016 2 7.96372e+00 1.05212e+00 127 2016 3 5.81163e+00 1.54164e+00 93 2016 4 8.89091e+00 1.00194e+00 80 2016 5 4.56520e+00 6.37507e-01 112 2016 6 3.99268e+00 3.23422e-01 112 2016 7 4.35207e+00 8.13189e-01 160 2016 8 6.56797e+00 1.26332e+00 123 2016 9 6.17970e+00 1.39556e+00 160 2016 10 5.58233e+00 1.20839e+00 256 2016 11 3.70860e+00 9.88890e-01 176 2016 12 4.73412e+00 7.19209e-01 142 2017 1 7.21642e+00 1.79478e+00 46 2017 2 7.46812e+00 1.41740e+00 195 2017 3 5.14958e+00 1.41584e+00 177 2017 4 4.43095e+00 6.64759e-01 112 2017 5 4.17220e+00 9.23046e-01 96 2017 6 4.04852e+00 3.95948e-01 48 2017 7 6.74635e+00 6.08597e-01 64 2017 8 5.03884e+00 3.35449e-01 36 2017 9 5.15938e+00 5.80747e-01 128 2017 10 5.75371e+00 1.75335e+00 175 2017 11 4.01001e+00 7.47112e-01 252 2017 12 4.11226e+00 7.96602e-01 107 2018 1 4.37217e+00 8.14080e-01 176 2018 2 6.08679e+00 1.28861e+00 96 2018 3 4.89584e+00 9.55005e-01 192 2018 4 4.18296e+00 5.99418e-01 144 2018 5 4.60946e+00 6.53239e-01 82 2018 6 5.33304e+00 1.69939e+00 62 2018 7 5.22428e+00 9.53431e-01 66 2018 8 7.35142e+00 1.13244e+00 62 2018 9 6.07953e+00 8.83537e-01 128 2018 10 8.20866e+00 1.41690e+00 242 2018 11 7.35406e+00 5.66403e-01 111 2018 12 9.49984e+00 8.98874e-01 36 2019 1 1.03378e+01 5.41287e-01 55 2019 2 8.11526e+00 1.24204e+00 62 2019 3 6.46798e+00 6.33872e-01 209 2019 4 5.75301e+00 7.19690e-01 112 2019 5 4.50331e+00 3.11731e-01 129 2019 6 4.10625e+00 2.88341e-01 88 2019 7 5.16047e+00 2.56172e-01 64 2019 8 4.80198e+00 1.39579e+00 134 2019 9 5.39479e+00 1.14304e+00 240 2019 10 5.39538e+00 1.14669e+00 128 2019 11 4.39939e+00 1.26503e+00 176 2019 12 5.22902e+00 1.17673e+00 64 2020 1 7.39246e+00 8.70621e-01 104 2020 2 7.98084e+00 2.02268e+00 80 2020 3 8.40027e+00 1.44382e+00 77 2020 4 6.17629e+00 6.77830e-01 96 2020 5 6.30270e+00 1.52277e+00 96 2020 6 5.73755e+00 1.30781e+00 80 2020 7 4.00252e+00 2.82075e-01 46 2020 8 4.21542e+00 2.59616e-01 48 2020 9 8.39307e+00 2.09551e+00 64 2020 10 7.64382e+00 1.80712e+00 160 2020 11 6.01852e+00 1.15526e+00 179 2020 12 4.85116e+00 8.16653e-01 243 2021 1 6.86841e+00 7.75218e-01 87 2021 2 6.50313e+00 1.47775e+00 48 2021 3 7.91367e+00 9.64786e-01 111 2021 4 6.35608e+00 5.91563e-01 145 2021 5 5.39866e+00 1.28115e+00 92 2021 6 4.23959e+00 4.36971e-01 32 2021 7 6.18032e+00 1.01215e+00 80 2021 8 6.31783e+00 1.43083e+00 144 2021 9 8.54566e+00 1.36443e+00 96 2021 10 7.60843e+00 7.09764e-01 112 2021 11 5.01847e+00 9.24650e-01 207 2021 12 4.29881e+00 3.91936e-01 144 2022 1 5.22012e+00 9.52849e-01 159 2022 2 5.97823e+00 7.79733e-01 116 2022 3 6.02420e+00 1.25640e+00 194 2022 4 6.16401e+00 2.49260e-01 35 2022 5 4.84198e+00 6.57526e-01 52 2022 6 4.88173e+00 7.62897e-01 168 2022 7 4.16200e+00 1.88330e-01 108 2022 8 4.98565e+00 2.67503e-01 68 2022 9 6.93995e+00 1.00057e+00 115 2022 10 4.65363e+00 7.68202e-01 301 2022 11 4.26324e+00 2.27007e-01 99 2022 12 4.22386e+00 8.03138e-01 144 2023 1 4.40530e+00 8.61426e-01 167 2023 2 7.76984e+00 1.06321e+00 110 2023 3 5.80944e+00 6.30529e-01 94 2023 4 6.13600e+00 1.11666e+00 80 2023 5 3.97637e+00 1.19259e-01 65 2023 6 4.57475e+00 3.91666e-01 79 2023 7 4.80188e+00 5.70673e-01 54 2023 8 4.28329e+00 6.57697e-01 64 2023 9 5.28181e+00 1.29015e+00 165 2023 10 5.53192e+00 1.36861e+00 197 2023 11 4.11950e+00 8.34214e-01 115 2023 12 8.53484e+00 1.94260e+00 74 2024 1 7.56136e+00 6.53216e-01 69 2024 2 7.32927e+00 1.65813e+00 80 2024 3 7.76710e+00 6.16708e-01 59 2024 4 nan nan 0