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 6.26986e+01 2.65402e-01 32 2002 8 5.81262e+01 6.51048e-01 78 2002 9 5.06505e+01 2.33156e+00 127 2002 10 4.37598e+01 2.45262e+00 144 2002 11 3.41993e+01 2.18492e+00 175 2002 12 2.83006e+01 2.39569e-01 144 2003 1 3.16567e+01 1.51820e+00 232 2003 2 3.94011e+01 2.49107e+00 128 2003 3 4.97565e+01 6.06215e-03 4 2003 4 5.84684e+01 1.60849e+00 53 2003 5 6.25863e+01 7.56878e-01 32 2003 6 6.32326e+01 1.76961e-01 64 2003 7 6.19058e+01 4.18724e-01 22 2003 8 5.98033e+01 8.41811e-01 30 2003 9 5.14137e+01 2.26706e+00 106 2003 10 4.20940e+01 2.86106e+00 195 2003 11 3.34911e+01 2.01888e+00 274 2003 12 2.85568e+01 6.71202e-01 178 2004 1 3.19375e+01 1.61289e+00 112 2004 2 4.21944e+01 1.72712e+00 48 2004 3 5.00940e+01 1.80239e+00 144 2004 4 5.77259e+01 1.93254e+00 155 2004 5 6.21404e+01 9.90699e-01 139 2004 6 6.33658e+01 8.67234e-02 71 2004 7 6.30756e+01 2.21511e-01 19 2004 8 5.70178e+01 8.02387e-01 48 2004 9 5.14765e+01 2.59150e+00 117 2004 10 4.30766e+01 1.65700e+00 56 2004 11 3.36243e+01 2.20829e+00 128 2004 12 2.82295e+01 2.36382e-01 106 2005 1 3.23276e+01 1.62342e+00 207 2005 2 3.89667e+01 1.64308e+00 107 2005 3 4.77213e+01 2.44427e+00 128 2005 4 5.68757e+01 2.12947e+00 70 2005 5 6.22838e+01 6.77791e-01 47 2005 6 6.32957e+01 1.79908e-01 80 2005 7 6.29870e+01 3.55085e-01 65 2005 8 nan nan 0 2005 9 5.15724e+01 2.57029e+00 96 2005 10 4.16018e+01 2.72047e+00 265 2005 11 3.36925e+01 1.87124e+00 272 2005 12 2.87276e+01 8.54971e-01 208 2006 1 3.22340e+01 2.04718e+00 137 2006 2 3.90154e+01 2.15357e+00 160 2006 3 4.86547e+01 2.89184e+00 196 2006 4 5.71624e+01 2.14549e+00 156 2006 5 6.20590e+01 9.15288e-01 173 2006 6 6.31312e+01 3.96471e-01 101 2006 7 6.26435e+01 6.60442e-01 111 2006 8 5.92156e+01 1.34734e+00 80 2006 9 5.01695e+01 2.29365e+00 146 2006 10 4.23381e+01 3.06061e+00 231 2006 11 3.37576e+01 2.19106e+00 213 2006 12 2.87068e+01 7.15774e-01 160 2007 1 3.23067e+01 2.01644e+00 64 2007 2 4.10700e+01 2.02424e+00 144 2007 3 4.86998e+01 2.75502e+00 284 2007 4 5.76051e+01 2.11375e+00 165 2007 5 6.17100e+01 9.85901e-01 92 2007 6 6.33368e+01 1.31353e-01 64 2007 7 6.23359e+01 7.56434e-01 95 2007 8 5.77621e+01 1.73250e+00 96 2007 9 5.08697e+01 2.64399e+00 176 2007 10 4.49778e+01 1.21414e+00 124 2007 11 3.43852e+01 2.00180e+00 256 2007 12 2.87015e+01 6.95269e-01 144 2008 1 3.18472e+01 2.09695e+00 176 2008 2 3.95865e+01 3.03713e+00 237 2008 3 5.01304e+01 2.70756e+00 176 2008 4 5.75362e+01 1.34955e+00 129 2008 5 6.22392e+01 9.72771e-01 160 2008 6 6.33868e+01 1.44474e-01 98 2008 7 6.28397e+01 1.87155e-01 14 2008 8 6.04221e+01 1.34299e-01 16 2008 9 5.03119e+01 1.17515e+00 116 2008 10 4.17219e+01 2.91427e+00 245 2008 11 3.37533e+01 1.87877e+00 226 2008 12 2.85950e+01 6.21782e-01 164 2009 1 3.25005e+01 1.83244e+00 174 2009 2 3.96773e+01 2.45934e+00 221 2009 3 4.75870e+01 2.17056e+00 160 2009 4 5.70765e+01 2.52779e+00 70 2009 5 6.22544e+01 1.04694e+00 64 2009 6 6.32911e+01 1.12346e-01 32 2009 7 6.28652e+01 5.22437e-01 80 2009 8 5.81811e+01 1.40160e+00 96 2009 9 5.13111e+01 2.24166e+00 191 2009 10 4.22566e+01 2.78388e+00 163 2009 11 3.32908e+01 1.95251e+00 160 2009 12 2.84260e+01 3.79857e-01 6 2010 1 3.16299e+01 1.76095e+00 138 2010 2 4.08887e+01 2.56221e+00 130 2010 3 4.78327e+01 2.97282e+00 128 2010 4 5.70107e+01 1.72938e+00 188 2010 5 6.19753e+01 8.74562e-01 70 2010 6 6.32698e+01 1.08304e-01 144 2010 7 6.20767e+01 6.61047e-01 92 2010 8 6.03951e+01 3.01436e-01 32 2010 9 5.15407e+01 2.17588e+00 199 2010 10 4.27706e+01 2.89557e+00 297 2010 11 3.38561e+01 1.83135e+00 240 2010 12 2.88712e+01 8.31329e-01 260 2011 1 3.25062e+01 1.95279e+00 176 2011 2 4.04560e+01 1.23472e+00 135 2011 3 4.81394e+01 2.09626e+00 167 2011 4 5.66394e+01 1.78736e+00 153 2011 5 6.17402e+01 1.07875e+00 144 2011 6 6.34002e+01 1.88575e-01 110 2011 7 6.20990e+01 8.72733e-01 93 2011 8 5.79125e+01 1.25972e+00 122 2011 9 5.09862e+01 2.44793e+00 176 2011 10 4.24531e+01 3.00324e+00 288 2011 11 3.40815e+01 2.40449e+00 190 2011 12 2.88194e+01 9.00833e-01 240 2012 1 3.18794e+01 1.91027e+00 241 2012 2 3.99666e+01 1.65559e+00 64 2012 3 4.91774e+01 2.42143e+00 192 2012 4 5.75175e+01 1.93811e+00 256 2012 5 6.17533e+01 7.82337e-01 112 2012 6 6.33590e+01 9.99451e-04 16 2012 7 6.23266e+01 5.01062e-01 80 2012 8 5.68808e+01 1.44012e-02 10 2012 9 4.97336e+01 2.11367e+00 54 2012 10 4.21293e+01 2.74543e+00 176 2012 11 3.38003e+01 2.34390e+00 224 2012 12 2.89064e+01 7.18431e-01 152 2013 1 3.34659e+01 1.15504e+00 128 2013 2 3.93953e+01 2.49449e+00 117 2013 3 4.83913e+01 2.91071e+00 187 2013 4 5.61209e+01 9.57818e-01 30 2013 5 6.28456e+01 3.96480e-01 64 2013 6 6.33449e+01 1.29308e-01 88 2013 7 nan nan 0 2013 8 5.77000e+01 0.00000e+00 3 2013 9 5.15824e+01 2.23474e+00 176 2013 10 4.14219e+01 2.85654e+00 160 2013 11 3.44123e+01 2.00367e+00 127 2013 12 2.86836e+01 7.95932e-01 104 2014 1 3.13796e+01 1.16446e+00 51 2014 2 4.08423e+01 1.97219e+00 104 2014 3 4.72360e+01 1.80617e+00 80 2014 4 5.80451e+01 7.68372e-01 23 2014 5 nan nan 0 2014 6 6.33058e+01 1.31734e-01 47 2014 7 6.27585e+01 6.54408e-01 61 2014 8 5.82531e+01 1.79321e+00 112 2014 9 5.16286e+01 2.10657e+00 141 2014 10 4.19323e+01 2.62905e+00 318 2014 11 3.35227e+01 2.40517e+00 208 2014 12 2.88699e+01 7.44654e-01 187 2015 1 3.31502e+01 1.69563e+00 146 2015 2 3.88472e+01 1.93578e+00 96 2015 3 4.92770e+01 3.08647e+00 84 2015 4 5.67102e+01 2.12664e+00 40 2015 5 6.21466e+01 8.68039e-01 136 2015 6 6.32506e+01 1.61676e-01 111 2015 7 6.26012e+01 5.82920e-01 60 2015 8 5.88627e+01 1.45818e+00 94 2015 9 5.20607e+01 2.22574e+00 128 2015 10 4.15770e+01 2.23040e+00 208 2015 11 3.38222e+01 1.81780e+00 125 2015 12 2.88354e+01 5.52008e-01 80 2016 1 3.23874e+01 1.33569e+00 133 2016 2 4.02664e+01 2.37112e+00 270 2016 3 4.83763e+01 2.24537e+00 224 2016 4 5.56760e+01 7.95003e-01 17 2016 5 6.20873e+01 6.89675e-01 64 2016 6 6.32989e+01 1.50179e-01 123 2016 7 6.26904e+01 7.05431e-01 153 2016 8 5.77676e+01 1.46159e+00 114 2016 9 5.23382e+01 2.68127e+00 78 2016 10 4.20882e+01 2.95075e+00 240 2016 11 3.39653e+01 1.85868e+00 172 2016 12 2.88566e+01 9.49611e-01 161 2017 1 3.19299e+01 1.77741e+00 144 2017 2 4.07913e+01 2.35353e+00 199 2017 3 4.99135e+01 2.46069e+00 196 2017 4 5.68944e+01 1.79536e+00 152 2017 5 6.22908e+01 8.73613e-01 112 2017 6 6.32305e+01 1.72443e-01 24 2017 7 6.18961e+01 7.23636e-01 32 2017 8 5.72472e+01 9.39874e-01 63 2017 9 5.06909e+01 2.42976e+00 172 2017 10 4.21590e+01 2.63086e+00 197 2017 11 3.35968e+01 2.13019e+00 288 2017 12 2.89571e+01 8.21683e-01 176 2018 1 3.18643e+01 1.73510e+00 236 2018 2 4.11172e+01 2.07032e+00 96 2018 3 4.80376e+01 2.84930e+00 160 2018 4 5.75061e+01 2.01360e+00 118 2018 5 6.15948e+01 8.76744e-01 83 2018 6 6.32464e+01 9.97805e-02 41 2018 7 6.22743e+01 7.13009e-01 80 2018 8 5.65602e+01 3.62897e-01 48 2018 9 5.02311e+01 2.11652e+00 157 2018 10 4.21000e+01 2.97098e+00 321 2018 11 3.23819e+01 7.64952e-01 80 2018 12 2.91262e+01 8.65438e-01 58 2019 1 3.30477e+01 1.28452e+00 88 2019 2 3.72462e+01 1.09625e+00 26 2019 3 4.72157e+01 2.08489e+00 121 2019 4 5.72847e+01 1.64334e+00 80 2019 5 6.22532e+01 9.91519e-01 175 2019 6 6.33802e+01 1.47148e-01 48 2019 7 6.19298e+01 7.15171e-01 85 2019 8 5.85202e+01 1.59594e+00 160 2019 9 5.08936e+01 2.37049e+00 232 2019 10 4.29202e+01 2.40674e+00 144 2019 11 3.34956e+01 2.19199e+00 156 2019 12 2.88753e+01 9.06407e-01 96 2020 1 3.15233e+01 1.71366e+00 152 2020 2 4.06861e+01 2.93886e+00 144 2020 3 4.95919e+01 2.56845e+00 92 2020 4 5.71632e+01 2.49090e+00 80 2020 5 6.16383e+01 8.12148e-01 121 2020 6 6.33500e+01 1.64486e-01 37 2020 7 6.22481e+01 2.57832e-01 48 2020 8 6.02715e+01 7.08466e-01 78 2020 9 5.24382e+01 1.28186e+00 48 2020 10 4.12352e+01 2.04041e+00 175 2020 11 3.37891e+01 1.93451e+00 229 2020 12 2.85810e+01 6.56393e-01 138 2021 1 3.16855e+01 1.99065e+00 64 2021 2 3.99538e+01 2.74282e+00 110 2021 3 4.78437e+01 1.98100e+00 112 2021 4 5.71627e+01 2.25514e+00 105 2021 5 6.26502e+01 4.76342e-01 141 2021 6 6.33931e+01 4.06631e-02 32 2021 7 6.22521e+01 6.06815e-01 32 2021 8 5.82585e+01 9.49106e-01 112 2021 9 5.22897e+01 2.52126e+00 68 2021 10 3.99397e+01 2.08922e+00 68 2021 11 3.34048e+01 1.86433e+00 219 2021 12 2.84536e+01 6.32175e-01 84 2022 1 3.18250e+01 1.63731e+00 149 2022 2 4.07589e+01 2.64737e+00 160 2022 3 4.85964e+01 2.78370e+00 182 2022 4 5.88957e+01 1.85555e-01 48 2022 5 6.20594e+01 8.66056e-01 96 2022 6 6.32815e+01 1.29671e-01 128 2022 7 6.22828e+01 7.08420e-01 49 2022 8 5.79131e+01 2.20295e+00 51 2022 9 5.04212e+01 2.10229e+00 130 2022 10 4.29243e+01 2.42316e+00 295 2022 11 3.48234e+01 1.64194e+00 124 2022 12 2.87232e+01 8.45820e-01 224 2023 1 3.20077e+01 1.55048e+00 208 2023 2 3.96966e+01 2.72836e+00 160 2023 3 4.84757e+01 2.02783e+00 160 2023 4 5.79438e+01 1.57230e+00 96 2023 5 6.14577e+01 9.23836e-01 96 2023 6 6.32935e+01 1.56748e-01 112 2023 7 6.23289e+01 9.54586e-01 56 2023 8 5.80251e+01 1.46571e+00 133 2023 9 5.14023e+01 1.65227e+00 106 2023 10 4.15091e+01 2.98665e+00 258 2023 11 3.44625e+01 2.36502e+00 169 2023 12 2.80484e+01 2.08052e-01 16 2024 1 2.99017e+01 2.70087e-02 16 2024 2 4.12544e+01 2.00689e+00 112 2024 3 5.17160e+01 2.20421e+00 98 2024 4 nan nan 0