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 1.95202e+00 7.08795e-01 3 2002 8 1.41687e+00 2.32336e-01 51 2002 9 2.59061e+00 1.17428e+00 72 2002 10 1.93514e+00 5.81302e-01 96 2002 11 1.54072e+00 6.22620e-01 155 2002 12 2.15733e+00 9.20524e-01 170 2003 1 1.74916e+00 9.51995e-01 209 2003 2 1.71788e+00 4.57912e-01 104 2003 3 1.98804e+00 7.34585e-01 40 2003 4 1.65605e+00 4.84495e-01 99 2003 5 1.02625e+00 1.11530e-01 12 2003 6 1.25119e+00 1.24657e-01 40 2003 7 1.15068e+00 1.07450e-01 18 2003 8 1.40445e+00 2.07006e-02 6 2003 9 1.94786e+00 6.96030e-01 62 2003 10 1.40060e+00 3.87338e-01 149 2003 11 1.88795e+00 4.62772e-01 190 2003 12 2.13633e+00 7.86076e-01 158 2004 1 1.56158e+00 6.33673e-01 138 2004 2 1.42955e+00 2.16695e-01 48 2004 3 1.67839e+00 5.61936e-01 144 2004 4 1.94032e+00 3.99881e-01 87 2004 5 1.94965e+00 2.85612e-01 75 2004 6 1.81409e+00 1.33356e-01 32 2004 7 9.04063e-01 8.88068e-02 14 2004 8 1.08499e+00 3.65060e-01 49 2004 9 1.86709e+00 5.30881e-01 71 2004 10 2.17517e+00 8.07250e-01 96 2004 11 1.79061e+00 8.48613e-01 115 2004 12 1.50221e+00 2.01283e-01 74 2005 1 1.89690e+00 1.00483e+00 101 2005 2 2.12246e+00 4.54901e-01 112 2005 3 2.36327e+00 1.30958e+00 136 2005 4 3.31362e+00 2.02248e+00 76 2005 5 1.28334e+00 3.72102e-01 48 2005 6 1.42753e+00 2.78042e-01 32 2005 7 1.85140e+00 5.80455e-01 59 2005 8 1.50364e+00 2.69748e-01 25 2005 9 5.64414e-01 1.10628e-01 15 2005 10 1.21657e+00 4.72445e-01 196 2005 11 1.33635e+00 4.45446e-01 172 2005 12 1.86396e+00 5.05707e-01 131 2006 1 2.32147e+00 5.31874e-01 97 2006 2 2.09499e+00 8.70984e-01 125 2006 3 1.63305e+00 6.66336e-01 200 2006 4 1.94702e+00 6.01157e-01 105 2006 5 2.28633e+00 5.24278e-01 93 2006 6 2.09318e+00 4.36930e-01 37 2006 7 2.99173e+00 6.94807e-01 32 2006 8 2.17712e+00 6.10477e-01 64 2006 9 2.10142e+00 5.45172e-01 79 2006 10 1.94637e+00 4.84837e-01 187 2006 11 1.74829e+00 4.14153e-01 195 2006 12 2.91059e+00 9.66935e-01 85 2007 1 1.78564e+00 1.42515e-01 32 2007 2 1.41133e+00 3.94489e-01 172 2007 3 1.99742e+00 4.83222e-01 181 2007 4 2.42627e+00 1.03931e+00 161 2007 5 2.23224e+00 8.69239e-01 50 2007 6 2.28270e+00 7.02332e-01 47 2007 7 1.65978e+00 4.67841e-01 67 2007 8 2.11759e+00 4.10636e-01 52 2007 9 3.15587e+00 3.00758e-01 64 2007 10 2.88305e+00 4.67052e-01 92 2007 11 2.22670e+00 3.10843e-01 196 2007 12 2.77330e+00 7.54325e-01 121 2008 1 3.32545e+00 1.07471e+00 173 2008 2 2.30057e+00 6.80540e-01 178 2008 3 2.53665e+00 8.81252e-01 155 2008 4 2.08489e+00 6.68720e-01 96 2008 5 2.19247e+00 4.07862e-01 117 2008 6 1.82569e+00 6.57425e-01 57 2008 7 1.77735e+00 6.67042e-01 32 2008 8 1.07638e+00 2.81457e-01 12 2008 9 1.61547e+00 3.34996e-01 96 2008 10 2.38008e+00 5.90106e-01 222 2008 11 1.94545e+00 6.95404e-01 214 2008 12 1.65122e+00 5.34476e-01 194 2009 1 2.08967e+00 6.70973e-01 122 2009 2 1.86032e+00 5.99043e-01 209 2009 3 1.65514e+00 4.27826e-01 130 2009 4 2.15197e+00 8.32851e-01 30 2009 5 2.01043e+00 7.15525e-01 65 2009 6 1.49969e+00 2.87849e-01 32 2009 7 1.02459e+00 1.74658e-01 20 2009 8 1.55492e+00 7.21678e-01 48 2009 9 1.18015e+00 3.20917e-01 47 2009 10 1.60465e+00 5.09569e-01 138 2009 11 1.55387e+00 5.83697e-01 143 2009 12 2.93363e+00 1.29332e+00 17 2010 1 3.04597e+00 1.27037e+00 101 2010 2 2.82139e+00 1.94940e+00 76 2010 3 1.64861e+00 5.45769e-01 142 2010 4 2.07328e+00 7.12533e-01 121 2010 5 2.37264e+00 5.48586e-01 32 2010 6 1.94197e+00 2.83437e-01 67 2010 7 2.20217e+00 8.21052e-01 24 2010 8 1.00311e+00 1.54680e-01 9 2010 9 2.92869e+00 1.11343e+00 153 2010 10 3.44865e+00 6.22085e-01 233 2010 11 3.08911e+00 7.93258e-01 235 2010 12 2.65333e+00 9.57124e-01 216 2011 1 1.67316e+00 3.52782e-01 167 2011 2 1.67489e+00 4.31930e-01 122 2011 3 1.96190e+00 6.77948e-01 112 2011 4 1.93262e+00 5.44658e-01 104 2011 5 1.59771e+00 2.77791e-01 83 2011 6 2.04050e+00 2.20821e-01 39 2011 7 1.69340e+00 1.90715e-01 42 2011 8 2.17413e+00 3.26392e-01 78 2011 9 1.91921e+00 1.02586e+00 105 2011 10 3.61046e+00 8.40988e-01 225 2011 11 3.57474e+00 7.41453e-01 164 2011 12 2.83338e+00 7.18406e-01 182 2012 1 2.64227e+00 8.84494e-01 134 2012 2 2.58538e+00 5.43688e-01 40 2012 3 2.27155e+00 7.09612e-01 173 2012 4 1.86111e+00 5.23573e-01 120 2012 5 2.77319e+00 7.75801e-01 70 2012 6 1.94438e+00 8.86865e-02 16 2012 7 9.41032e-01 9.23307e-02 48 2012 8 1.55373e+00 3.41878e-01 25 2012 9 1.71225e+00 6.19261e-01 62 2012 10 1.97629e+00 7.36146e-01 179 2012 11 1.06926e+00 2.54698e-01 156 2012 12 1.31256e+00 3.55942e-01 96 2013 1 1.98030e+00 1.05516e+00 127 2013 2 2.88974e+00 1.30841e+00 101 2013 3 2.40723e+00 1.31529e+00 80 2013 4 1.43714e+00 5.26039e-01 51 2013 5 2.25864e+00 9.58038e-01 65 2013 6 2.10622e+00 2.93198e-01 29 2013 7 nan nan 0 2013 8 1.05982e+00 2.44803e-01 32 2013 9 1.48216e+00 4.26070e-01 131 2013 10 1.66129e+00 5.32799e-01 139 2013 11 1.42658e+00 4.67358e-01 123 2013 12 1.30568e+00 2.96499e-01 136 2014 1 1.83166e+00 8.51867e-01 87 2014 2 9.36138e-01 3.73833e-01 155 2014 3 1.47515e+00 2.86756e-01 53 2014 4 2.29564e+00 6.94789e-01 52 2014 5 1.32041e+00 3.79275e-01 48 2014 6 9.91931e-01 4.73138e-01 47 2014 7 1.49638e+00 4.35080e-01 59 2014 8 1.22072e+00 1.79186e-01 50 2014 9 1.41188e+00 5.11110e-01 125 2014 10 1.58729e+00 4.86440e-01 264 2014 11 2.19714e+00 7.09927e-01 182 2014 12 1.32315e+00 3.80349e-01 137 2015 1 1.61214e+00 6.64607e-01 104 2015 2 1.25546e+00 6.01086e-01 98 2015 3 1.18483e+00 7.24874e-01 92 2015 4 1.40972e+00 3.19237e-01 62 2015 5 1.76020e+00 3.50605e-01 94 2015 6 1.70276e+00 2.66436e-01 57 2015 7 1.67691e+00 4.07731e-01 44 2015 8 1.58186e+00 4.46720e-01 27 2015 9 3.15892e+00 7.03124e-01 17 2015 10 2.73975e+00 8.33827e-01 194 2015 11 1.61483e+00 8.17105e-01 81 2015 12 1.78738e+00 7.33413e-01 92 2016 1 2.50806e+00 5.69207e-01 80 2016 2 2.49387e+00 1.31619e+00 201 2016 3 1.93505e+00 6.33458e-01 158 2016 4 1.16604e+00 2.06032e-01 16 2016 5 1.31768e+00 2.79378e-01 56 2016 6 1.45786e+00 2.64454e-01 95 2016 7 1.29241e+00 2.69873e-01 153 2016 8 1.08656e+00 2.22788e-01 103 2016 9 1.65415e+00 3.96105e-01 102 2016 10 2.23283e+00 7.29980e-01 275 2016 11 2.41356e+00 6.65810e-01 174 2016 12 2.28486e+00 8.94060e-01 155 2017 1 2.42035e+00 6.45366e-01 151 2017 2 2.12605e+00 8.18200e-01 131 2017 3 2.67946e+00 1.00191e+00 189 2017 4 1.45001e+00 3.51312e-01 99 2017 5 1.81197e+00 6.86567e-01 81 2017 6 1.15022e+00 2.51922e-01 20 2017 7 1.04947e+00 1.78406e-01 44 2017 8 1.01860e+00 5.26646e-01 44 2017 9 1.08065e+00 2.57909e-01 82 2017 10 2.29904e+00 7.85192e-01 188 2017 11 1.86788e+00 5.23565e-01 255 2017 12 1.49867e+00 6.69478e-01 99 2018 1 1.76731e+00 8.27603e-01 187 2018 2 1.75491e+00 2.50611e-01 80 2018 3 1.78039e+00 5.01809e-01 155 2018 4 1.88263e+00 6.41743e-01 129 2018 5 1.80710e+00 2.55098e-01 32 2018 6 1.52918e+00 1.92583e-01 51 2018 7 7.00497e-01 1.59667e-01 51 2018 8 1.33234e+00 2.40054e-01 34 2018 9 1.01869e+00 5.33122e-01 101 2018 10 1.36740e+00 6.31141e-01 184 2018 11 1.64252e+00 5.76444e-01 77 2018 12 1.81473e+00 9.38579e-01 48 2019 1 2.84786e+00 7.13340e-01 167 2019 2 1.98679e+00 7.40710e-01 48 2019 3 2.02679e+00 9.11596e-01 137 2019 4 2.51669e+00 5.40920e-01 103 2019 5 1.33703e+00 5.84817e-01 104 2019 6 2.11493e+00 5.91110e-01 32 2019 7 1.03583e+00 3.42277e-01 47 2019 8 1.13813e+00 8.09456e-01 29 2019 9 1.46711e+00 5.97889e-01 156 2019 10 2.54175e+00 7.91404e-01 153 2019 11 2.41153e+00 9.47792e-01 149 2019 12 3.11575e+00 1.42015e+00 88 2020 1 2.10265e+00 1.15166e+00 124 2020 2 2.89828e+00 9.89387e-01 140 2020 3 2.93029e+00 9.77632e-01 109 2020 4 2.03825e+00 3.50269e-01 78 2020 5 1.92187e+00 2.69595e-01 108 2020 6 1.38547e+00 2.00165e-01 30 2020 7 5.92724e-01 7.70612e-02 16 2020 8 1.49772e+00 4.68311e-01 48 2020 9 8.90153e-01 2.79509e-01 20 2020 10 1.77708e+00 7.07752e-01 105 2020 11 1.90133e+00 9.01126e-01 150 2020 12 1.69867e+00 7.67586e-01 214 2021 1 1.48334e+00 3.00510e-01 31 2021 2 2.07419e+00 5.63113e-01 47 2021 3 1.54223e+00 6.03953e-01 139 2021 4 1.36891e+00 3.73603e-01 80 2021 5 1.55637e+00 3.57420e-01 111 2021 6 1.80330e+00 6.76354e-01 48 2021 7 7.13944e-01 1.27777e-01 32 2021 8 2.26227e+00 1.30465e+00 51 2021 9 9.75704e-01 1.99892e-01 23 2021 10 1.05297e+00 3.92496e-01 32 2021 11 1.38752e+00 3.38246e-01 210 2021 12 1.91352e+00 5.79943e-01 88 2022 1 2.12125e+00 6.36725e-01 172 2022 2 2.01481e+00 6.23054e-01 146 2022 3 2.00505e+00 9.62506e-01 165 2022 4 1.38822e+00 3.36414e-01 38 2022 5 1.62971e+00 5.49050e-01 80 2022 6 1.35493e+00 2.71759e-01 48 2022 7 1.29750e+00 7.91353e-01 64 2022 8 9.57482e-01 4.90142e-01 46 2022 9 1.29276e+00 4.13389e-01 69 2022 10 1.89128e+00 4.94856e-01 292 2022 11 1.76053e+00 4.14458e-01 137 2022 12 1.73208e+00 9.26618e-01 208 2023 1 1.79135e+00 8.52493e-01 211 2023 2 2.31049e+00 9.27732e-01 175 2023 3 2.02915e+00 6.78625e-01 142 2023 4 1.28183e+00 4.68760e-01 80 2023 5 1.59505e+00 4.33778e-01 70 2023 6 1.73766e+00 6.67360e-01 79 2023 7 1.33637e+00 6.36617e-01 32 2023 8 1.89209e+00 6.13989e-01 75 2023 9 1.65457e+00 3.89355e-01 115 2023 10 2.03733e+00 6.82028e-01 182 2023 11 2.26201e+00 1.40445e+00 160 2023 12 1.69533e+00 5.60699e-01 32 2024 1 2.41338e+00 1.00129e+00 22 2024 2 2.54999e+00 1.11120e+00 112 2024 3 1.64088e+00 4.30705e-01 73 2024 4 nan nan 0