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 nan nan 0 2002 8 3.17298e+00 5.86519e-01 59 2002 9 3.36161e+00 6.85601e-01 62 2002 10 3.05915e+00 4.82118e-01 110 2002 11 2.37337e+00 8.38991e-01 240 2002 12 2.07058e+00 8.90345e-01 123 2003 1 4.86468e-01 8.93818e-01 236 2003 2 2.14273e+00 5.49244e-01 160 2003 3 1.35219e-01 9.17871e-01 48 2003 4 -3.79395e-01 2.98340e+00 48 2003 5 1.09643e+00 6.88577e-01 16 2003 6 7.44263e-01 2.13177e+00 29 2003 7 1.88885e+00 2.17129e-01 16 2003 8 2.92871e+00 4.73244e-01 5 2003 9 2.87360e+00 6.35821e-01 89 2003 10 2.80848e+00 9.46629e-01 192 2003 11 2.89207e+00 8.51403e-01 243 2003 12 1.34887e+00 1.26417e+00 195 2004 1 1.69717e+00 9.40148e-01 160 2004 2 2.51859e+00 4.41283e-01 64 2004 3 2.23275e+00 7.95031e-01 165 2004 4 1.57484e+00 1.10611e+00 106 2004 5 2.80656e+00 5.67518e-01 112 2004 6 3.12545e+00 8.29335e-01 64 2004 7 3.40608e+00 5.98719e-01 68 2004 8 3.37733e+00 9.84245e-01 83 2004 9 2.96040e+00 1.26454e+00 52 2004 10 1.39529e+00 1.45464e+00 64 2004 11 5.41893e-01 7.91225e-01 128 2004 12 2.56294e-02 1.23509e+00 126 2005 1 1.08237e+00 1.23251e+00 144 2005 2 1.82598e+00 6.68163e-01 112 2005 3 1.01466e+00 8.70513e-01 128 2005 4 1.18827e+00 6.75088e-01 36 2005 5 2.41863e+00 6.62201e-01 46 2005 6 1.83530e+00 6.58827e-01 61 2005 7 1.96223e+00 6.91788e-01 61 2005 8 1.99085e+00 7.70336e-01 62 2005 9 2.10788e+00 6.59659e-01 64 2005 10 2.38771e+00 1.41118e+00 181 2005 11 2.31378e+00 1.00006e+00 247 2005 12 1.55039e+00 9.64207e-01 183 2006 1 1.77389e+00 8.43159e-01 188 2006 2 7.65939e-01 8.69819e-01 147 2006 3 1.55540e+00 7.19790e-01 272 2006 4 1.91352e+00 5.53751e-01 77 2006 5 2.22678e+00 1.13772e+00 120 2006 6 3.26085e+00 6.32557e-01 64 2006 7 3.82285e+00 2.51400e-01 31 2006 8 3.24365e+00 5.21243e-01 49 2006 9 3.23368e+00 6.70112e-01 139 2006 10 2.96443e+00 9.70853e-01 226 2006 11 2.19729e+00 1.15669e+00 206 2006 12 3.34293e+00 7.27848e-01 119 2007 1 2.24280e+00 1.09092e+00 128 2007 2 2.40109e+00 9.04331e-01 245 2007 3 3.13679e+00 7.51281e-01 240 2007 4 2.79261e+00 9.99814e-01 175 2007 5 3.74999e+00 5.53914e-02 16 2007 6 3.24195e+00 9.23131e-02 16 2007 7 3.27623e+00 4.41880e-01 60 2007 8 3.48574e+00 5.06036e-01 83 2007 9 3.25992e+00 5.83364e-01 105 2007 10 3.29063e+00 6.94116e-01 160 2007 11 3.43216e+00 5.91970e-01 266 2007 12 3.03747e+00 1.18603e+00 208 2008 1 2.00488e+00 1.31335e+00 204 2008 2 2.64152e+00 7.13219e-01 297 2008 3 2.45449e+00 7.51832e-01 223 2008 4 2.53942e+00 7.12045e-01 114 2008 5 2.91302e+00 9.49744e-01 90 2008 6 3.31255e+00 5.72311e-01 54 2008 7 3.68609e+00 5.15503e-01 70 2008 8 3.16176e+00 6.75419e-01 32 2008 9 1.67012e+00 1.12594e+00 108 2008 10 2.08844e+00 1.11328e+00 192 2008 11 2.30802e+00 8.21229e-01 208 2008 12 1.79990e+00 1.02476e+00 198 2009 1 1.74859e+00 5.61635e-01 159 2009 2 2.19420e+00 7.70553e-01 240 2009 3 2.58938e+00 1.14127e+00 216 2009 4 2.44620e+00 1.17983e+00 100 2009 5 2.86600e+00 1.40000e+00 59 2009 6 3.08034e+00 7.68909e-01 68 2009 7 3.57828e+00 9.02057e-01 45 2009 8 3.21850e+00 8.76253e-01 77 2009 9 3.30971e+00 4.17561e-01 64 2009 10 3.22755e+00 6.96848e-01 203 2009 11 3.08105e+00 8.58973e-01 128 2009 12 2.48541e+00 5.52043e-01 44 2010 1 6.91520e-01 9.34172e-01 195 2010 2 8.37927e-02 1.18874e+00 114 2010 3 1.23963e-01 6.12911e-01 117 2010 4 9.33323e-01 1.18375e+00 94 2010 5 1.97022e+00 8.48430e-01 80 2010 6 3.41777e+00 1.43427e+00 85 2010 7 2.74181e+00 6.04052e-01 18 2010 8 3.41341e+00 4.63741e-01 4 2010 9 3.78191e+00 1.47106e+00 103 2010 10 3.15613e+00 6.44027e-01 286 2010 11 3.03104e+00 1.05717e+00 263 2010 12 2.31957e+00 1.07958e+00 231 2011 1 1.87818e+00 9.30763e-01 160 2011 2 2.79534e+00 5.44422e-01 151 2011 3 2.51755e+00 8.94156e-01 184 2011 4 2.64596e+00 6.97378e-01 128 2011 5 3.47818e+00 8.38165e-01 119 2011 6 4.35396e+00 3.96836e-01 55 2011 7 3.59693e+00 5.72541e-01 53 2011 8 3.25407e+00 7.39475e-01 100 2011 9 3.46834e+00 5.49837e-01 148 2011 10 3.03908e+00 9.03161e-01 223 2011 11 3.12392e+00 6.89912e-01 212 2011 12 2.84656e+00 7.24088e-01 228 2012 1 1.90770e+00 1.21120e+00 269 2012 2 2.25145e+00 4.14288e-01 48 2012 3 3.31268e+00 6.76142e-01 222 2012 4 3.28523e+00 5.06689e-01 171 2012 5 3.95183e+00 6.04290e-01 116 2012 6 3.43564e+00 3.16426e-01 42 2012 7 3.15568e+00 1.30327e-01 16 2012 8 1.69808e+00 1.71651e+00 18 2012 9 1.62592e+00 1.16457e+00 108 2012 10 1.87772e+00 9.90699e-01 187 2012 11 1.95133e+00 1.12166e+00 204 2012 12 1.59432e+00 1.19161e+00 109 2013 1 2.32958e+00 1.27593e+00 148 2013 2 1.75127e+00 8.73342e-01 160 2013 3 1.66546e+00 5.18252e-01 143 2013 4 2.92493e+00 5.38930e-01 76 2013 5 3.21761e+00 6.30160e-01 78 2013 6 4.11509e+00 1.83542e+00 49 2013 7 2.28383e+00 2.81940e-01 32 2013 8 5.56655e-01 1.04006e+00 21 2013 9 2.30885e+00 1.16420e+00 95 2013 10 2.41871e+00 1.02150e+00 178 2013 11 2.44407e+00 7.12830e-01 140 2013 12 2.77430e+00 8.35732e-01 200 2014 1 1.05634e+00 1.03472e+00 128 2014 2 2.06941e+00 6.91228e-01 148 2014 3 1.49702e+00 1.08749e+00 144 2014 4 6.60748e-01 1.60594e+00 48 2014 5 nan nan 0 2014 6 2.26822e+00 4.47744e-01 32 2014 7 3.67880e+00 8.75443e-01 64 2014 8 3.61692e+00 3.26944e-01 52 2014 9 3.82296e+00 4.08916e-01 64 2014 10 3.27520e+00 1.05177e+00 320 2014 11 2.20515e+00 1.22958e+00 248 2014 12 3.10798e+00 7.16229e-01 146 2015 1 2.43486e+00 1.34792e+00 217 2015 2 1.06885e+00 1.19150e+00 188 2015 3 2.22719e+00 5.79437e-01 95 2015 4 2.46470e+00 3.71310e-01 35 2015 5 3.34798e+00 6.92437e-01 66 2015 6 3.66067e+00 6.04054e-01 108 2015 7 3.54507e+00 4.09572e-01 16 2015 8 2.19492e+00 5.26637e-01 45 2015 9 2.45689e+00 2.80149e+00 48 2015 10 2.76807e+00 8.16524e-01 92 2015 11 2.56540e+00 1.60375e+00 140 2015 12 3.07628e+00 8.80072e-01 128 2016 1 1.99050e+00 6.14286e-01 176 2016 2 1.64894e+00 1.09885e+00 261 2016 3 1.77941e+00 8.45267e-01 184 2016 4 2.74999e+00 9.35840e-01 116 2016 5 3.46465e+00 1.02411e+00 78 2016 6 3.64393e+00 4.92413e-01 70 2016 7 3.86879e+00 1.04310e+00 112 2016 8 2.66017e+00 7.62176e-01 119 2016 9 2.24118e+00 5.15158e-01 128 2016 10 2.55469e+00 1.57975e+00 134 2016 11 3.35883e+00 6.17871e-01 199 2016 12 3.06216e+00 9.41875e-01 188 2017 1 2.44605e+00 1.25596e+00 160 2017 2 2.15503e+00 9.48521e-01 259 2017 3 2.69106e+00 6.68938e-01 238 2017 4 2.86669e+00 7.52867e-01 144 2017 5 2.70054e+00 6.45546e-01 80 2017 6 4.64643e+00 6.46037e-01 49 2017 7 3.62809e+00 2.87063e+00 43 2017 8 3.28060e+00 7.20467e-01 79 2017 9 3.23550e+00 3.44884e-01 65 2017 10 1.97635e+00 1.40627e+00 151 2017 11 3.51908e+00 9.94102e-01 225 2017 12 3.00436e+00 1.17316e+00 174 2018 1 2.73190e+00 5.74552e-01 208 2018 2 2.63163e+00 3.98749e-01 128 2018 3 2.32665e+00 6.14066e-01 146 2018 4 3.09517e+00 8.01649e-01 108 2018 5 2.78134e+00 3.13913e-01 80 2018 6 2.54536e+00 9.90135e-01 64 2018 7 3.93881e+00 6.43348e-01 54 2018 8 1.32981e+00 6.62077e+00 80 2018 9 2.71633e+00 7.89418e-01 164 2018 10 2.38688e+00 1.06772e+00 196 2018 11 1.39101e+00 1.12341e+00 48 2018 12 1.02023e+00 1.19825e+00 158 2019 1 5.93607e-01 6.35249e-01 109 2019 2 4.91956e-01 4.27098e-01 48 2019 3 1.27412e+00 9.43756e-01 143 2019 4 1.82287e+00 1.01495e+00 105 2019 5 3.33038e+00 5.38852e-01 102 2019 6 2.32203e+00 2.07899e+00 39 2019 7 3.56194e+00 7.57170e-01 71 2019 8 4.18056e+00 1.14029e+00 80 2019 9 3.67946e+00 9.77561e-01 50 2019 10 3.04752e+00 1.44754e+00 135 2019 11 3.58690e+00 4.97304e-01 176 2019 12 1.85651e+00 1.21455e+00 128 2020 1 2.61850e+00 6.86273e-01 160 2020 2 2.61367e+00 6.33790e-01 128 2020 3 3.04217e+00 5.96529e-01 123 2020 4 2.26016e+00 7.49503e-01 123 2020 5 3.60440e+00 6.90893e-01 148 2020 6 4.13558e+00 1.21188e+00 74 2020 7 2.22679e+00 2.76182e-01 32 2020 8 3.55352e+00 6.21708e-01 44 2020 9 1.60807e+00 3.39922e-01 16 2020 10 2.15427e+00 1.35649e+00 103 2020 11 2.85531e+00 1.82764e+00 155 2020 12 2.09808e+00 7.15669e-01 125 2021 1 1.01420e+00 8.14625e-01 103 2021 2 2.17993e+00 7.95959e-01 128 2021 3 2.50402e+00 6.01112e-01 127 2021 4 2.26400e+00 3.01390e-01 62 2021 5 3.46317e+00 9.94291e-01 97 2021 6 3.00276e+00 7.23497e-01 48 2021 7 3.96800e+00 6.64098e-01 12 2021 8 1.95580e-01 1.93152e+00 17 2021 9 1.21123e+00 7.88318e-01 135 2021 10 2.10559e+00 9.75618e-01 108 2021 11 1.69348e+00 7.05702e-01 186 2021 12 2.29532e+00 6.33640e-01 127 2022 1 1.61953e+00 7.78369e-01 195 2022 2 2.74109e+00 5.30845e-01 166 2022 3 2.33256e+00 1.15696e+00 172 2022 4 2.32828e+00 1.37473e-01 16 2022 5 2.63980e+00 2.03766e-01 64 2022 6 3.92008e+00 1.44243e+00 62 2022 7 4.76395e+00 8.99074e-01 65 2022 8 4.12334e+00 9.77017e-01 134 2022 9 3.21938e+00 6.33246e-01 71 2022 10 2.97595e+00 6.67964e-01 260 2022 11 2.83491e+00 8.50688e-01 135 2022 12 2.85029e+00 6.03933e-01 242 2023 1 2.71669e+00 6.17091e-01 198 2023 2 2.92858e+00 4.45017e-01 131 2023 3 2.54077e+00 5.60642e-01 208 2023 4 2.97729e+00 3.96688e-01 48 2023 5 3.60153e+00 1.03486e+00 96 2023 6 3.27041e+00 1.19479e+00 48 2023 7 3.20112e+00 4.94287e-01 34 2023 8 3.15276e+00 1.11101e+00 96 2023 9 3.12867e+00 7.73925e-01 74 2023 10 2.47065e+00 8.71508e-01 112 2023 11 3.08745e+00 5.47339e-01 200 2023 12 2.31132e+00 1.54935e+00 95 2024 1 7.24952e-01 8.60393e-01 97 2024 2 1.84772e+00 4.43837e-01 112 2024 3 2.21015e+00 7.43376e-01 64 2024 4 nan nan 0