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 2.65603e-01 3.60254e-02 64 2002 8 3.57119e-01 1.42661e-01 48 2002 9 2.96691e-01 9.24839e-02 112 2002 10 3.20394e-01 8.96309e-02 209 2002 11 2.96759e-01 7.39306e-02 102 2002 12 2.63040e-01 6.33633e-02 147 2003 1 2.44780e-01 6.68679e-02 180 2003 2 2.44328e-01 6.11199e-02 84 2003 3 2.61601e-01 3.29949e-02 80 2003 4 2.60889e-01 6.76191e-02 128 2003 5 3.04287e-01 6.42896e-02 64 2003 6 3.57401e-01 9.14171e-02 25 2003 7 3.19293e-01 1.23433e-02 18 2003 8 3.15360e-01 1.06954e-01 49 2003 9 2.82675e-01 1.23526e-02 48 2003 10 3.58129e-01 1.24206e-01 213 2003 11 2.49953e-01 6.50555e-02 167 2003 12 2.48603e-01 5.74776e-02 129 2004 1 2.47804e-01 9.88945e-02 134 2004 2 2.76435e-01 1.02773e-01 149 2004 3 2.65193e-01 4.10623e-02 95 2004 4 3.22840e-01 1.34303e-01 138 2004 5 2.99391e-01 6.17691e-02 110 2004 6 2.91795e-01 6.25351e-02 116 2004 7 2.98686e-01 4.66683e-02 112 2004 8 3.37977e-01 5.75284e-02 50 2004 9 2.86880e-01 3.54830e-02 95 2004 10 2.85132e-01 5.24604e-02 160 2004 11 3.10372e-01 8.78480e-02 135 2004 12 3.00595e-01 9.23064e-02 128 2005 1 2.04834e-01 4.94875e-02 169 2005 2 2.35907e-01 5.30510e-02 104 2005 3 2.05215e-01 4.27507e-02 96 2005 4 2.28060e-01 5.24571e-02 96 2005 5 3.42251e-01 1.69214e-01 118 2005 6 nan nan 0 2005 7 3.28362e-01 5.50159e-02 67 2005 8 3.08355e-01 9.85200e-02 69 2005 9 3.40660e-01 7.02049e-02 155 2005 10 3.11421e-01 7.20653e-02 89 2005 11 2.57087e-01 5.12799e-02 144 2005 12 2.36085e-01 4.83329e-02 217 2006 1 2.40533e-01 5.86133e-02 164 2006 2 2.09635e-01 4.59429e-02 206 2006 3 2.92942e-01 7.99692e-02 150 2006 4 2.68302e-01 6.08310e-02 94 2006 5 2.67001e-01 3.86110e-02 112 2006 6 3.30624e-01 7.91720e-02 64 2006 7 3.30231e-01 6.37560e-02 64 2006 8 3.44094e-01 6.02230e-02 80 2006 9 3.33856e-01 8.81965e-02 96 2006 10 2.73741e-01 6.83883e-02 144 2006 11 3.32584e-01 7.11120e-02 96 2006 12 2.50555e-01 5.28209e-02 78 2007 1 2.47744e-01 5.60303e-02 163 2007 2 2.32597e-01 6.47510e-02 84 2007 3 2.74596e-01 3.11728e-02 96 2007 4 2.80786e-01 5.07004e-02 144 2007 5 2.71035e-01 5.05613e-02 96 2007 6 2.84924e-01 3.64947e-02 96 2007 7 3.09118e-01 5.47500e-02 96 2007 8 3.12818e-01 6.65149e-02 70 2007 9 3.05302e-01 4.72924e-02 65 2007 10 3.10189e-01 5.01863e-02 85 2007 11 3.27184e-01 6.59842e-02 220 2007 12 2.82149e-01 7.21605e-02 208 2008 1 2.26758e-01 6.63627e-02 77 2008 2 2.27935e-01 5.48427e-02 144 2008 3 3.29105e-01 1.31444e-01 98 2008 4 2.90933e-01 5.26410e-02 85 2008 5 3.44685e-01 3.63853e-02 37 2008 6 3.15273e-01 1.11247e-01 73 2008 7 3.87281e-01 8.45782e-02 55 2008 8 3.62144e-01 6.55337e-02 112 2008 9 2.95380e-01 6.11683e-02 93 2008 10 3.26842e-01 4.02016e-02 121 2008 11 3.44946e-01 9.25679e-02 208 2008 12 2.61173e-01 5.23431e-02 160 2009 1 2.39033e-01 6.87637e-02 224 2009 2 2.80359e-01 8.99903e-02 188 2009 3 2.57830e-01 4.29189e-02 126 2009 4 2.60437e-01 2.47791e-02 32 2009 5 3.14433e-01 6.58937e-02 113 2009 6 3.10643e-01 4.87937e-02 47 2009 7 2.82360e-01 8.16614e-03 32 2009 8 3.65133e-01 7.02350e-02 61 2009 9 4.22932e-01 1.12304e-01 58 2009 10 3.39618e-01 6.32838e-02 195 2009 11 3.10977e-01 1.19388e-01 192 2009 12 3.30267e-01 9.65117e-02 97 2010 1 2.99576e-01 9.51536e-02 146 2010 2 2.31724e-01 5.72523e-02 102 2010 3 2.57519e-01 6.90069e-02 144 2010 4 2.94276e-01 5.22178e-02 79 2010 5 2.99875e-01 6.06774e-02 80 2010 6 3.55828e-01 6.57670e-02 130 2010 7 4.13859e-01 7.51422e-02 73 2010 8 2.97043e-01 4.60448e-02 94 2010 9 3.21588e-01 4.72453e-02 64 2010 10 2.96872e-01 6.52205e-02 205 2010 11 2.47580e-01 5.77574e-02 183 2010 12 2.23647e-01 4.41827e-02 264 2011 1 2.38462e-01 6.53367e-02 172 2011 2 2.79496e-01 1.55519e-01 183 2011 3 2.52327e-01 5.32998e-02 266 2011 4 3.08127e-01 1.19693e-01 114 2011 5 2.73810e-01 7.01572e-02 116 2011 6 3.27554e-01 7.87642e-02 95 2011 7 2.80911e-01 4.29600e-02 117 2011 8 nan nan 0 2011 9 3.18599e-01 5.50557e-02 84 2011 10 3.34699e-01 7.07277e-02 108 2011 11 3.08492e-01 5.24523e-02 181 2011 12 2.46702e-01 7.03653e-02 192 2012 1 2.20307e-01 4.75173e-02 159 2012 2 2.69420e-01 7.87183e-02 168 2012 3 2.68503e-01 3.48307e-02 95 2012 4 2.99486e-01 1.04465e-01 105 2012 5 2.87445e-01 6.98940e-02 96 2012 6 2.97787e-01 8.04585e-02 64 2012 7 3.32198e-01 4.62852e-02 96 2012 8 3.19600e-01 4.68800e-02 80 2012 9 3.06485e-01 3.91770e-02 109 2012 10 2.92621e-01 5.40364e-02 176 2012 11 2.97282e-01 7.70237e-02 234 2012 12 2.45001e-01 5.43682e-02 106 2013 1 2.82711e-01 1.44015e-01 146 2013 2 2.23322e-01 6.01101e-02 154 2013 3 2.58022e-01 9.87622e-02 113 2013 4 2.51769e-01 3.80055e-02 67 2013 5 3.16461e-01 5.32459e-02 80 2013 6 3.73597e-01 7.01670e-02 7 2013 7 4.29476e-01 9.75522e-02 96 2013 8 3.22997e-01 4.17848e-02 54 2013 9 2.80818e-01 2.97320e-02 66 2013 10 3.67404e-01 1.02228e-01 227 2013 11 4.40522e-01 1.69981e-01 71 2013 12 3.39961e-01 8.65047e-02 112 2014 1 3.55401e-01 1.22001e-01 147 2014 2 3.03863e-01 8.31536e-02 172 2014 3 2.78449e-01 6.17593e-02 224 2014 4 3.20181e-01 9.90665e-02 114 2014 5 3.56381e-01 7.71987e-02 64 2014 6 3.33180e-01 3.92135e-02 107 2014 7 3.65662e-01 5.51430e-02 58 2014 8 4.61422e-01 1.34945e-01 96 2014 9 3.61323e-01 7.14503e-02 46 2014 10 3.85820e-01 1.12694e-01 190 2014 11 3.66216e-01 7.74172e-02 176 2014 12 3.16123e-01 6.34225e-02 146 2015 1 3.18927e-01 6.96260e-02 156 2015 2 2.62490e-01 7.55211e-02 207 2015 3 3.03194e-01 7.93940e-02 225 2015 4 3.58948e-01 1.05986e-01 70 2015 5 2.92770e-01 2.83811e-02 98 2015 6 3.80840e-01 9.73417e-02 80 2015 7 3.50292e-01 7.64809e-02 89 2015 8 3.18880e-01 3.91557e-02 48 2015 9 3.27104e-01 5.43499e-02 54 2015 10 3.44613e-01 3.92868e-02 64 2015 11 3.64153e-01 7.95209e-02 146 2015 12 3.19120e-01 9.04268e-02 65 2016 1 2.93914e-01 5.15254e-02 48 2016 2 2.25494e-01 4.83465e-02 172 2016 3 2.38403e-01 9.46081e-02 76 2016 4 3.01703e-01 3.79455e-02 73 2016 5 3.17883e-01 7.05092e-02 96 2016 6 3.23263e-01 6.13624e-02 94 2016 7 3.97447e-01 9.19711e-02 80 2016 8 3.33494e-01 6.21056e-02 96 2016 9 3.74195e-01 1.64756e-01 128 2016 10 3.36432e-01 6.18100e-02 112 2016 11 3.32875e-01 9.06086e-02 198 2016 12 2.54437e-01 6.82443e-02 130 2017 1 2.62273e-01 9.78608e-02 184 2017 2 2.36722e-01 3.58617e-02 143 2017 3 2.46961e-01 5.40715e-02 215 2017 4 3.16595e-01 5.80296e-02 62 2017 5 2.96653e-01 4.16912e-02 128 2017 6 4.02689e-01 7.02017e-02 48 2017 7 4.67321e-01 1.20567e-01 103 2017 8 3.60911e-01 6.23866e-02 104 2017 9 3.67863e-01 1.69881e-01 89 2017 10 3.39934e-01 1.01825e-01 113 2017 11 3.37115e-01 9.10314e-02 225 2017 12 3.09773e-01 8.22727e-02 318 2018 1 2.66433e-01 6.67337e-02 144 2018 2 2.31708e-01 5.74555e-02 225 2018 3 2.40225e-01 5.31613e-02 179 2018 4 2.57716e-01 5.15114e-02 114 2018 5 2.96095e-01 3.98463e-02 35 2018 6 3.68810e-01 1.10465e-01 32 2018 7 3.78090e-01 7.71893e-02 79 2018 8 4.20518e-01 1.02166e-01 128 2018 9 3.72345e-01 5.48076e-02 104 2018 10 3.41866e-01 8.29736e-02 186 2018 11 3.61879e-01 7.28314e-02 96 2018 12 3.24327e-01 2.35035e-01 160 2019 1 2.55235e-01 6.92274e-02 178 2019 2 2.25072e-01 7.64977e-02 173 2019 3 2.50664e-01 6.37013e-02 155 2019 4 2.49427e-01 5.06065e-02 112 2019 5 2.83725e-01 5.88146e-02 126 2019 6 3.16081e-01 7.65681e-02 48 2019 7 3.54289e-01 8.04494e-02 80 2019 8 3.35335e-01 7.65629e-02 64 2019 9 2.88710e-01 4.99048e-02 98 2019 10 2.57406e-01 7.53818e-02 208 2019 11 2.57063e-01 6.84385e-02 240 2019 12 2.59914e-01 5.93876e-02 138 2020 1 2.61179e-01 6.87637e-02 207 2020 2 2.54266e-01 5.63377e-02 126 2020 3 3.01396e-01 8.99475e-02 136 2020 4 2.89706e-01 6.18767e-02 108 2020 5 3.33546e-01 1.33712e-01 65 2020 6 3.65121e-01 4.26591e-02 32 2020 7 3.46202e-01 6.44969e-02 96 2020 8 3.09717e-01 8.34440e-02 128 2020 9 3.22794e-01 1.01016e-01 93 2020 10 2.91655e-01 5.65540e-02 148 2020 11 2.17119e-01 7.77521e-02 64 2020 12 3.04981e-01 7.52896e-02 173 2021 1 2.37606e-01 8.96146e-02 202 2021 2 2.21569e-01 5.39767e-02 96 2021 3 2.69826e-01 1.15305e-01 160 2021 4 2.97147e-01 5.01250e-02 96 2021 5 3.62821e-01 1.40561e-01 111 2021 6 3.20651e-01 6.60105e-03 16 2021 7 3.07504e-01 1.06768e-01 120 2021 8 3.31580e-01 7.44220e-02 106 2021 9 2.57497e-01 5.24596e-02 36 2021 10 3.18892e-01 1.79726e-01 118 2021 11 2.57490e-01 6.67674e-02 152 2021 12 2.66155e-01 7.69506e-02 245 2022 1 2.39328e-01 4.86828e-02 95 2022 2 2.57517e-01 1.09150e-01 205 2022 3 3.60935e-01 1.48767e-01 58 2022 4 nan nan 0 2022 5 2.81382e-01 7.24103e-02 122 2022 6 2.71416e-01 7.32350e-02 64 2022 7 3.38541e-01 6.85448e-02 118 2022 8 3.14073e-01 1.15366e-01 120 2022 9 2.88487e-01 6.29412e-02 131 2022 10 3.26026e-01 8.88785e-02 176 2022 11 2.87575e-01 1.51288e-01 208 2022 12 2.82956e-01 1.09030e-01 170 2023 1 2.43463e-01 6.41058e-02 244 2023 2 2.12244e-01 4.92250e-02 193 2023 3 2.86914e-01 9.70555e-02 142 2023 4 3.28952e-01 1.16400e-01 64 2023 5 3.14378e-01 3.95633e-02 75 2023 6 3.08367e-01 2.88432e-02 79 2023 7 3.42579e-01 4.39168e-02 32 2023 8 3.15484e-01 4.31678e-02 64 2023 9 3.96469e-01 8.62167e-02 50 2023 10 3.67822e-01 1.09031e-01 115 2023 11 2.83671e-01 6.72386e-02 112 2023 12 2.65296e-01 8.81347e-02 72 2024 1 2.59607e-01 5.42444e-02 32 2024 2 2.47355e-01 6.73638e-02 125 2024 3 2.84221e-01 1.07778e-01 127 2024 4 nan nan 0