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 9.00044e-01 2.66459e-02 16 2002 8 8.83845e-01 5.35611e-02 48 2002 9 1.27841e+00 4.30728e-01 45 2002 10 1.09863e+00 2.28120e-01 72 2002 11 1.35532e+00 2.24522e-01 154 2002 12 1.18474e+00 2.16666e-01 116 2003 1 1.10094e+00 1.66273e-01 128 2003 2 1.18182e+00 2.66083e-01 108 2003 3 1.76263e+00 7.08936e-02 24 2003 4 1.56846e+00 3.55164e-01 112 2003 5 1.24545e+00 1.82203e-01 44 2003 6 1.12009e+00 1.66478e-01 35 2003 7 1.72840e+00 3.12814e-01 32 2003 8 2.11049e+00 5.34366e-01 32 2003 9 1.66586e+00 5.51548e-01 117 2003 10 1.07941e+00 1.68967e-01 135 2003 11 1.02399e+00 1.19967e-01 143 2003 12 8.60548e-01 1.11822e-01 143 2004 1 8.30812e-01 1.30489e-01 103 2004 2 1.10851e+00 7.78217e-02 33 2004 3 1.06003e+00 1.41000e-01 118 2004 4 9.16410e-01 2.53347e-01 104 2004 5 7.92279e-01 6.54445e-02 51 2004 6 nan nan 0 2004 7 1.04988e+00 1.31691e-01 30 2004 8 7.84373e-01 2.62914e-02 32 2004 9 1.51259e+00 5.23184e-02 13 2004 10 1.07836e+00 1.82920e-01 46 2004 11 1.20518e+00 2.73683e-01 78 2004 12 1.15349e+00 1.39140e-01 51 2005 1 1.08183e+00 1.92306e-01 93 2005 2 1.03256e+00 2.75396e-01 107 2005 3 1.19113e+00 2.41166e-01 88 2005 4 nan nan 0 2005 5 1.22019e+00 1.69508e-01 45 2005 6 1.21004e+00 2.26738e-01 48 2005 7 1.71132e+00 2.23038e-01 20 2005 8 nan nan 0 2005 9 1.05713e+00 2.58675e-01 32 2005 10 9.18109e-01 2.05949e-01 150 2005 11 8.40950e-01 1.81823e-01 159 2005 12 1.01622e+00 2.29007e-01 50 2006 1 1.15332e+00 1.45788e-01 47 2006 2 1.05911e+00 1.45926e-01 98 2006 3 1.04865e+00 1.96385e-01 135 2006 4 9.52610e-01 2.69677e-01 85 2006 5 8.65657e-01 4.16071e-01 78 2006 6 8.37272e-01 7.92176e-02 32 2006 7 7.96849e-01 9.78455e-02 22 2006 8 8.96061e-01 7.40387e-02 51 2006 9 9.70104e-01 1.68669e-01 68 2006 10 9.68924e-01 1.80952e-01 140 2006 11 9.50723e-01 4.00573e-01 148 2006 12 9.33161e-01 3.43073e-01 79 2007 1 1.26545e+00 1.77764e-01 61 2007 2 1.12798e+00 1.52237e-01 141 2007 3 1.19033e+00 2.01877e-01 165 2007 4 1.00862e+00 1.98977e-01 139 2007 5 1.07941e+00 2.02412e-01 32 2007 6 nan nan 0 2007 7 8.36052e-01 9.18615e-02 47 2007 8 1.10995e+00 1.07259e-01 48 2007 9 1.42662e+00 7.38992e-02 28 2007 10 1.48243e+00 3.19942e-01 74 2007 11 9.47834e-01 1.82916e-01 177 2007 12 8.43981e-01 6.64401e-02 32 2008 1 1.07239e+00 1.75995e-01 86 2008 2 1.19726e+00 2.01592e-01 189 2008 3 1.70543e+00 1.88981e-01 96 2008 4 1.24102e+00 1.86435e-01 57 2008 5 8.66258e-01 1.77827e-01 76 2008 6 8.34434e-01 1.03106e-01 66 2008 7 7.44987e-01 2.95445e-02 16 2008 8 nan nan 0 2008 9 1.45225e+00 3.50095e-01 56 2008 10 1.23230e+00 2.63293e-01 149 2008 11 9.83510e-01 1.21195e-01 172 2008 12 1.07954e+00 3.01731e-01 100 2009 1 1.12739e+00 1.39097e-01 100 2009 2 1.09316e+00 1.91005e-01 164 2009 3 9.42813e-01 7.30866e-02 111 2009 4 nan nan 0 2009 5 1.32889e+00 3.55212e-01 44 2009 6 nan nan 0 2009 7 8.40324e-01 7.17215e-03 10 2009 8 9.62756e-01 4.21168e-02 23 2009 9 1.51465e+00 4.30708e-01 75 2009 10 1.23296e+00 1.42518e-01 128 2009 11 1.17510e+00 1.86518e-01 83 2009 12 nan nan 0 2010 1 1.29450e+00 8.90546e-02 29 2010 2 1.50102e+00 1.10726e-01 42 2010 3 1.21468e+00 1.27278e-01 100 2010 4 1.21412e+00 2.03219e-01 77 2010 5 1.16110e+00 2.42541e-01 45 2010 6 9.43886e-01 6.64490e-02 66 2010 7 9.77039e-01 6.90471e-02 58 2010 8 nan nan 0 2010 9 1.07669e+00 2.73607e-01 98 2010 10 8.99060e-01 1.45751e-01 269 2010 11 8.29879e-01 1.22342e-01 215 2010 12 7.90673e-01 9.18459e-02 114 2011 1 1.04845e+00 1.95685e-01 101 2011 2 1.12999e+00 9.37563e-02 110 2011 3 1.03678e+00 1.33338e-01 112 2011 4 1.09945e+00 1.46426e-01 103 2011 5 8.07817e-01 1.15098e-01 69 2011 6 1.06792e+00 8.69962e-02 20 2011 7 9.46775e-01 1.55181e-01 7 2011 8 1.02202e+00 1.82948e-01 36 2011 9 9.06123e-01 1.51085e-01 110 2011 10 9.41899e-01 1.85172e-01 148 2011 11 1.05422e+00 3.39756e-01 89 2011 12 8.45864e-01 1.95557e-01 100 2012 1 8.40388e-01 1.16663e-01 107 2012 2 1.17059e+00 1.47893e-01 55 2012 3 1.35710e+00 2.42511e-01 144 2012 4 9.14077e-01 1.95549e-01 106 2012 5 7.66936e-01 7.73107e-02 52 2012 6 1.22636e+00 5.35936e-01 48 2012 7 1.33860e+00 3.79471e-01 41 2012 8 3.25315e+00 0.00000e+00 1 2012 9 1.59022e+00 3.48953e-01 45 2012 10 1.35732e+00 1.90673e-01 140 2012 11 7.85184e-01 9.72773e-02 134 2012 12 8.19012e-01 7.24371e-02 64 2013 1 7.94490e-01 7.09759e-02 92 2013 2 8.88962e-01 1.30318e-01 61 2013 3 1.62159e+00 2.25583e-01 38 2013 4 1.70088e+00 5.71073e-02 9 2013 5 1.16001e+00 1.61774e-01 48 2013 6 nan nan 0 2013 7 9.37599e-01 3.36352e-02 9 2013 8 1.52599e+00 8.17687e-02 48 2013 9 1.63804e+00 3.49837e-01 43 2013 10 1.15072e+00 1.70896e-01 126 2013 11 1.06638e+00 2.29443e-01 69 2013 12 1.17210e+00 3.00432e-01 123 2014 1 1.26848e+00 1.12939e-01 73 2014 2 1.16904e+00 1.33470e-01 102 2014 3 1.48222e+00 1.59963e-01 75 2014 4 1.49360e+00 1.16532e-01 19 2014 5 1.64179e+00 1.37228e-01 54 2014 6 1.03568e+00 8.70712e-02 30 2014 7 9.86976e-01 1.13343e-01 30 2014 8 8.50631e-01 1.28195e-01 50 2014 9 1.06736e+00 2.39829e-01 66 2014 10 1.06697e+00 2.07302e-01 226 2014 11 1.04803e+00 2.24266e-01 136 2014 12 1.33167e+00 3.07461e-01 114 2015 1 1.56189e+00 1.43147e-01 96 2015 2 1.45728e+00 2.42865e-01 84 2015 3 1.19960e+00 1.66556e-01 68 2015 4 9.79328e-01 9.94192e-02 45 2015 5 1.39175e+00 3.54211e-01 68 2015 6 1.01338e+00 4.72378e-02 22 2015 7 9.50515e-01 3.31737e-02 48 2015 8 9.63752e-01 1.75194e-01 53 2015 9 1.33582e+00 6.96986e-01 64 2015 10 8.79834e-01 5.15660e-02 95 2015 11 1.34118e+00 3.45469e-01 96 2015 12 1.33302e+00 1.64322e-01 98 2016 1 1.53413e+00 1.41511e-01 23 2016 2 1.47754e+00 5.18352e-02 41 2016 3 9.34385e-01 2.41661e-01 26 2016 4 1.48277e+00 1.02435e-01 33 2016 5 1.07571e+00 9.60699e-02 48 2016 6 9.02099e-01 4.62054e-02 112 2016 7 9.29079e-01 8.43859e-02 105 2016 8 1.24323e+00 2.66105e-01 49 2016 9 1.20789e+00 4.31785e-01 95 2016 10 1.10615e+00 2.72401e-01 233 2016 11 8.65686e-01 1.59659e-01 155 2016 12 9.65824e-01 1.33749e-01 99 2017 1 1.28113e+00 3.81889e-01 27 2017 2 1.30565e+00 2.88370e-01 108 2017 3 1.07047e+00 2.37185e-01 98 2017 4 9.83243e-01 1.81110e-01 83 2017 5 8.69941e-01 2.25894e-01 84 2017 6 1.03270e+00 1.17543e-01 33 2017 7 1.27273e+00 9.88498e-02 32 2017 8 1.10172e+00 3.25625e-02 32 2017 9 1.05147e+00 1.05581e-01 54 2017 10 1.05691e+00 3.12451e-01 94 2017 11 7.90971e-01 7.08751e-02 201 2017 12 7.43296e-01 1.47914e-01 97 2018 1 8.86765e-01 6.22143e-02 71 2018 2 1.35626e+00 3.28538e-01 72 2018 3 1.12820e+00 2.03704e-01 114 2018 4 1.05758e+00 2.09948e-01 128 2018 5 9.93870e-01 1.92624e-01 88 2018 6 nan nan 0 2018 7 9.00501e-01 1.62672e-01 33 2018 8 1.27284e+00 9.49907e-02 32 2018 9 1.23954e+00 2.79195e-01 142 2018 10 1.51084e+00 2.82242e-01 168 2018 11 1.26062e+00 1.72953e-01 72 2018 12 1.35876e+00 1.28181e-01 41 2019 1 1.67213e+00 2.02951e-01 32 2019 2 1.63793e+00 2.21450e-01 39 2019 3 1.28540e+00 1.37211e-01 98 2019 4 1.11340e+00 1.37415e-01 94 2019 5 1.18342e+00 2.21654e-01 112 2019 6 8.50190e-01 1.27401e-01 48 2019 7 1.11664e+00 8.26313e-02 32 2019 8 1.00396e+00 2.24794e-01 62 2019 9 1.13011e+00 3.55069e-01 137 2019 10 9.92732e-01 2.31294e-01 138 2019 11 9.05485e-01 2.14961e-01 123 2019 12 8.65298e-01 1.94167e-02 16 2020 1 1.30750e+00 6.02907e-01 68 2020 2 1.52662e+00 2.07812e-01 88 2020 3 1.49525e+00 1.82483e-01 29 2020 4 1.12215e+00 1.66660e-01 112 2020 5 1.26886e+00 3.19957e-01 32 2020 6 1.11954e+00 1.07869e-01 32 2020 7 1.09379e+00 9.22115e-02 17 2020 8 8.33743e-01 6.16354e-02 61 2020 9 1.41566e+00 1.36982e-01 48 2020 10 1.36400e+00 2.13595e-01 63 2020 11 1.12659e+00 1.24937e-01 120 2020 12 9.75459e-01 1.66152e-01 213 2021 1 1.26013e+00 1.50847e-01 74 2021 2 1.41863e+00 8.38526e-02 32 2021 3 1.43441e+00 2.75718e-01 43 2021 4 1.18908e+00 1.16125e-01 79 2021 5 1.22455e+00 2.59825e-01 61 2021 6 8.89525e-01 4.53431e-02 16 2021 7 1.44041e+00 2.19536e-01 48 2021 8 1.51277e+00 2.24925e-01 72 2021 9 1.56367e+00 1.14643e-01 44 2021 10 1.26185e+00 1.84340e-01 64 2021 11 1.05535e+00 2.16970e-01 157 2021 12 1.05344e+00 1.92723e-01 51 2022 1 1.23373e+00 3.79593e-01 120 2022 2 1.03347e+00 1.12229e-01 80 2022 3 1.16814e+00 2.19161e-01 84 2022 4 8.91659e-01 1.32349e-01 8 2022 5 1.02384e+00 7.07220e-02 47 2022 6 1.15282e+00 1.88414e-01 68 2022 7 8.33703e-01 3.57393e-01 69 2022 8 1.03359e+00 4.94288e-02 44 2022 9 1.70350e+00 3.12981e-01 40 2022 10 1.08746e+00 3.55090e-01 282 2022 11 9.63657e-01 3.29820e-01 96 2022 12 9.51556e-01 1.88734e-01 142 2023 1 9.06497e-01 9.92991e-02 97 2023 2 1.36761e+00 3.68936e-01 126 2023 3 1.12369e+00 1.67467e-01 101 2023 4 1.29961e+00 6.72257e-02 55 2023 5 1.09518e+00 1.92935e-02 16 2023 6 9.97591e-01 2.37976e-01 57 2023 7 1.11518e+00 2.88200e-01 20 2023 8 1.22152e+00 3.83465e-01 25 2023 9 1.22979e+00 3.37228e-01 124 2023 10 1.07066e+00 2.86319e-01 139 2023 11 8.32354e-01 1.98656e-01 100 2023 12 1.27159e+00 7.40175e-02 32 2024 1 1.42084e+00 1.50656e-01 55 2024 2 1.35520e+00 1.76723e-01 90 2024 3 1.54647e+00 2.80023e-01 32 2024 4 nan nan 0