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 4.20988e+00 8.79317e-01 32 2002 8 4.60237e+00 7.33524e-01 56 2002 9 7.49902e+00 1.95038e+00 79 2002 10 6.54712e+00 1.74437e+00 76 2002 11 6.06226e+00 9.20708e-01 228 2002 12 4.98055e+00 9.42314e-01 149 2003 1 5.12581e+00 1.12598e+00 223 2003 2 4.16274e+00 9.00857e-01 108 2003 3 1.02331e+01 1.93565e+00 66 2003 4 6.93716e+00 2.05015e+00 134 2003 5 5.04567e+00 5.61781e-01 39 2003 6 5.73073e+00 8.45235e-01 43 2003 7 6.73154e+00 1.06916e+00 40 2003 8 9.68739e+00 2.36630e-01 17 2003 9 7.38187e+00 8.26268e-01 49 2003 10 4.66794e+00 6.61299e-01 155 2003 11 5.52444e+00 8.82867e-01 206 2003 12 4.20973e+00 5.99109e-01 138 2004 1 2.96319e+00 4.64400e-01 117 2004 2 5.94170e+00 1.94331e+00 57 2004 3 5.91668e+00 1.07454e+00 167 2004 4 4.54367e+00 5.65088e-01 90 2004 5 3.75698e+00 3.78271e-01 108 2004 6 3.73039e+00 5.25299e-01 27 2004 7 4.02202e+00 3.90472e-01 52 2004 8 4.45711e+00 1.01571e-01 39 2004 9 6.63192e+00 1.57269e+00 59 2004 10 6.35143e+00 8.03089e-01 89 2004 11 5.56345e+00 1.47241e+00 127 2004 12 5.02686e+00 8.88412e-01 108 2005 1 4.82546e+00 8.80294e-01 129 2005 2 4.21427e+00 7.36364e-01 131 2005 3 5.69631e+00 1.52799e+00 164 2005 4 1.04098e+01 5.19831e-01 27 2005 5 4.96439e+00 6.19495e-01 81 2005 6 4.64756e+00 2.93469e-01 34 2005 7 6.79476e+00 1.28349e+00 91 2005 8 7.17698e+00 4.29139e-01 61 2005 9 4.20482e+00 1.57756e+00 42 2005 10 3.72209e+00 7.58520e-01 206 2005 11 3.23934e+00 7.05968e-01 185 2005 12 3.90758e+00 7.02712e-01 144 2006 1 5.10849e+00 1.35023e+00 109 2006 2 5.03969e+00 1.17610e+00 179 2006 3 4.87358e+00 8.58489e-01 194 2006 4 4.55792e+00 1.04733e+00 86 2006 5 3.95856e+00 5.45424e-01 111 2006 6 3.08140e+00 7.61506e-02 12 2006 7 3.61107e+00 4.00981e-01 48 2006 8 3.49109e+00 3.10211e-01 64 2006 9 4.48146e+00 9.23562e-01 121 2006 10 3.58062e+00 6.15184e-01 191 2006 11 3.85590e+00 7.23906e-01 181 2006 12 4.46077e+00 8.28162e-01 98 2007 1 7.11457e+00 1.16994e+00 91 2007 2 5.75255e+00 1.34666e+00 179 2007 3 4.21060e+00 8.03686e-01 233 2007 4 3.67909e+00 5.53341e-01 152 2007 5 3.92089e+00 5.17182e-01 60 2007 6 4.17683e+00 7.94503e-01 26 2007 7 4.87855e+00 7.63983e-01 79 2007 8 3.93858e+00 8.09777e-01 48 2007 9 4.77663e+00 1.03541e+00 69 2007 10 4.15520e+00 3.97185e-01 96 2007 11 4.12999e+00 5.26108e-01 207 2007 12 3.86791e+00 1.35911e+00 81 2008 1 3.90581e+00 1.85437e+00 159 2008 2 4.23707e+00 7.48240e-01 210 2008 3 7.06918e+00 1.62149e+00 125 2008 4 5.55275e+00 1.21659e+00 66 2008 5 4.48331e+00 7.13674e-01 110 2008 6 4.42857e+00 5.74967e-01 35 2008 7 3.61560e+00 2.77133e-01 29 2008 8 5.21462e+00 3.06930e-03 7 2008 9 6.93873e+00 1.78278e+00 124 2008 10 5.09281e+00 1.07020e+00 213 2008 11 4.22005e+00 1.21196e+00 242 2008 12 4.83606e+00 1.15126e+00 174 2009 1 5.00346e+00 1.07145e+00 177 2009 2 3.95364e+00 4.60184e-01 196 2009 3 4.32360e+00 8.79440e-01 126 2009 4 7.74039e+00 1.08335e+00 42 2009 5 5.24941e+00 5.49849e-01 49 2009 6 nan nan 0 2009 7 4.34424e+00 1.02753e-01 24 2009 8 4.57030e+00 5.75505e-01 49 2009 9 7.35350e+00 3.48901e+00 68 2009 10 6.16476e+00 1.73707e+00 173 2009 11 5.26410e+00 8.86706e-01 124 2009 12 9.80024e+00 1.82043e+00 20 2010 1 8.10977e+00 1.46110e+00 69 2010 2 7.83270e+00 9.58525e-01 51 2010 3 6.85302e+00 9.96852e-01 132 2010 4 5.78009e+00 1.08532e+00 126 2010 5 5.13277e+00 1.17620e+00 58 2010 6 4.52209e+00 6.88000e-01 90 2010 7 3.35174e+00 6.86617e-02 16 2010 8 4.97678e+00 6.01798e-01 20 2010 9 4.56714e+00 7.95439e-01 178 2010 10 4.78493e+00 8.51940e-01 231 2010 11 4.00731e+00 8.10008e-01 247 2010 12 4.11064e+00 1.32219e+00 165 2011 1 3.81757e+00 7.49099e-01 165 2011 2 4.07694e+00 3.49621e-01 148 2011 3 4.81976e+00 1.63498e+00 157 2011 4 4.36562e+00 4.86888e-01 115 2011 5 3.75144e+00 5.35514e-01 96 2011 6 4.50193e+00 5.00900e-01 62 2011 7 4.02313e+00 2.09982e-01 62 2011 8 4.23128e+00 3.95780e-01 48 2011 9 4.18998e+00 7.61474e-01 94 2011 10 5.00043e+00 1.25629e+00 241 2011 11 5.90059e+00 1.54116e+00 157 2011 12 3.71287e+00 1.21175e+00 190 2012 1 4.21639e+00 6.94934e-01 200 2012 2 4.21863e+00 1.41909e+00 57 2012 3 4.77431e+00 1.20942e+00 149 2012 4 3.53104e+00 4.09499e-01 151 2012 5 3.91716e+00 5.91307e-01 97 2012 6 3.55643e+00 1.76157e-01 30 2012 7 7.69566e+00 2.53782e+00 69 2012 8 8.80506e+00 1.90359e+00 39 2012 9 7.68160e+00 1.27308e+00 76 2012 10 6.44427e+00 9.05210e-01 175 2012 11 3.44880e+00 9.93552e-01 184 2012 12 3.10255e+00 9.91296e-01 96 2013 1 4.41259e+00 8.70791e-01 108 2013 2 5.01812e+00 1.32112e+00 144 2013 3 8.43381e+00 1.40734e+00 81 2013 4 7.01687e+00 1.26912e+00 48 2013 5 4.02811e+00 2.71543e-01 32 2013 6 4.19029e+00 3.76553e-01 32 2013 7 1.03889e+01 1.63586e-01 16 2013 8 7.08438e+00 9.24698e-01 34 2013 9 7.42027e+00 2.06179e+00 138 2013 10 4.95350e+00 9.77077e-01 164 2013 11 4.39987e+00 1.33416e+00 103 2013 12 4.00674e+00 8.65691e-01 135 2014 1 7.80359e+00 1.62490e+00 84 2014 2 4.47503e+00 5.43264e-01 141 2014 3 6.72581e+00 1.20571e+00 147 2014 4 8.99109e+00 1.23559e+00 78 2014 5 7.33228e+00 1.65396e+00 93 2014 6 4.89651e+00 7.65081e-01 42 2014 7 3.93588e+00 1.65523e-01 47 2014 8 3.82320e+00 5.99805e-01 64 2014 9 3.33927e+00 5.43416e-01 98 2014 10 4.05095e+00 9.70299e-01 296 2014 11 4.36978e+00 8.57434e-01 198 2014 12 5.28370e+00 1.22005e+00 169 2015 1 8.19599e+00 1.44639e+00 140 2015 2 6.87717e+00 4.25268e-01 158 2015 3 5.06889e+00 5.78575e-01 63 2015 4 4.45591e+00 4.39718e-01 48 2015 5 4.19913e+00 9.90811e-01 91 2015 6 4.51324e+00 8.18736e-01 36 2015 7 4.16462e+00 4.75960e-01 48 2015 8 4.70095e+00 1.74898e-01 37 2015 9 4.53636e+00 1.40375e+00 88 2015 10 5.18029e+00 1.55941e+00 179 2015 11 6.26910e+00 2.99773e+00 135 2015 12 6.57100e+00 6.95134e-01 108 2016 1 9.48879e+00 1.93338e+00 43 2016 2 6.96515e+00 1.17396e+00 208 2016 3 5.91190e+00 1.00723e+00 121 2016 4 8.42711e+00 9.23170e-01 48 2016 5 4.50627e+00 7.02879e-01 89 2016 6 3.90687e+00 5.15638e-01 98 2016 7 4.00335e+00 7.41432e-01 126 2016 8 7.29906e+00 1.60709e+00 106 2016 9 6.31377e+00 9.85017e-01 98 2016 10 4.91336e+00 1.09263e+00 230 2016 11 4.08378e+00 1.60271e+00 193 2016 12 2.86651e+00 7.90459e-01 124 2017 1 4.91833e+00 1.49820e+00 128 2017 2 6.18403e+00 1.24789e+00 185 2017 3 4.82719e+00 1.17082e+00 194 2017 4 4.37123e+00 6.50235e-01 117 2017 5 4.26689e+00 6.35904e-01 57 2017 6 5.49196e+00 1.11668e+00 41 2017 7 5.89390e+00 1.06500e+00 49 2017 8 5.83199e+00 3.11487e-01 34 2017 9 5.16033e+00 6.16373e-01 105 2017 10 5.26353e+00 1.15130e+00 192 2017 11 3.62861e+00 8.30871e-01 288 2017 12 3.18129e+00 3.99195e-01 101 2018 1 3.36598e+00 1.16740e+00 200 2018 2 2.90994e+00 7.32987e-01 80 2018 3 4.68309e+00 8.40244e-01 195 2018 4 3.95234e+00 5.48565e-01 125 2018 5 4.13599e+00 9.37954e-01 49 2018 6 4.88214e+00 5.33890e-01 32 2018 7 4.61220e+00 6.45939e-01 60 2018 8 5.90253e+00 2.26069e+00 40 2018 9 5.93519e+00 7.51563e-01 159 2018 10 7.90266e+00 1.48199e+00 267 2018 11 6.27692e+00 1.15421e+00 96 2018 12 7.12422e+00 1.59125e+00 64 2019 1 8.81402e+00 1.46035e+00 66 2019 2 7.46630e+00 5.31556e-01 51 2019 3 5.96326e+00 8.01674e-01 188 2019 4 5.60483e+00 7.65454e-01 110 2019 5 4.22148e+00 6.77018e-01 114 2019 6 4.33782e+00 5.30621e-01 85 2019 7 4.67553e+00 4.56810e-01 37 2019 8 5.07153e+00 9.69461e-01 64 2019 9 5.02193e+00 1.07634e+00 159 2019 10 4.54797e+00 7.31731e-01 118 2019 11 4.40541e+00 9.61179e-01 148 2019 12 6.76515e+00 1.34254e+00 60 2020 1 5.07375e+00 1.08756e+00 132 2020 2 6.79356e+00 2.01760e+00 64 2020 3 8.17561e+00 1.09758e+00 93 2020 4 6.25654e+00 9.86153e-01 92 2020 5 4.85430e+00 1.01522e+00 80 2020 6 7.73825e+00 1.14713e+00 62 2020 7 3.35437e+00 2.34475e-01 29 2020 8 4.27090e+00 1.88473e-01 48 2020 9 7.89652e+00 2.52525e+00 44 2020 10 7.73720e+00 1.08231e+00 96 2020 11 5.38109e+00 1.56783e+00 214 2020 12 3.73517e+00 6.18121e-01 215 2021 1 5.75622e+00 1.26851e+00 64 2021 2 7.13114e+00 4.20060e-01 71 2021 3 6.52971e+00 8.49310e-01 122 2021 4 4.94785e+00 5.87297e-01 141 2021 5 4.51708e+00 8.37990e-01 132 2021 6 4.27068e+00 2.30212e-01 29 2021 7 6.12904e+00 1.28133e+00 36 2021 8 6.43747e+00 8.56438e-01 76 2021 9 7.86869e+00 8.99694e-01 79 2021 10 8.92014e+00 1.29397e+00 48 2021 11 4.36946e+00 8.61721e-01 243 2021 12 3.79772e+00 5.10644e-01 101 2022 1 4.59715e+00 8.62009e-01 116 2022 2 4.25512e+00 8.22175e-01 128 2022 3 6.30677e+00 1.46622e+00 182 2022 4 5.99210e+00 4.57994e-01 20 2022 5 5.13249e+00 1.50889e-01 32 2022 6 4.46718e+00 9.55671e-01 96 2022 7 4.46533e+00 7.03421e-01 82 2022 8 4.93854e+00 5.95937e-01 81 2022 9 7.11705e+00 1.58681e+00 99 2022 10 5.10381e+00 1.04791e+00 256 2022 11 4.17504e+00 1.10408e+00 156 2022 12 3.34343e+00 1.57179e+00 204 2023 1 3.61315e+00 6.58494e-01 185 2023 2 5.84118e+00 1.55410e+00 119 2023 3 5.22509e+00 7.86048e-01 118 2023 4 5.27782e+00 1.63704e+00 72 2023 5 5.29813e+00 1.52499e+00 48 2023 6 4.95887e+00 5.98722e-01 66 2023 7 4.70701e+00 7.61748e-01 32 2023 8 4.89798e+00 8.73674e-01 53 2023 9 5.64709e+00 9.82985e-01 129 2023 10 5.42913e+00 7.41783e-01 232 2023 11 4.58097e+00 1.75391e+00 131 2023 12 1.02032e+01 1.68929e+00 64 2024 1 7.04051e+00 6.36453e-01 81 2024 2 6.52946e+00 1.44939e+00 128 2024 3 6.55686e+00 1.06666e+00 64 2024 4 nan nan 0