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 6.26095e+01 2.97874e-01 23 2002 8 5.78746e+01 1.03374e+00 39 2002 9 4.92130e+01 2.84022e+00 44 2002 10 4.27678e+01 3.09073e+00 52 2002 11 3.23308e+01 1.52789e+00 80 2002 12 2.83949e+01 4.78661e-01 96 2003 1 3.05356e+01 1.67479e+00 144 2003 2 3.73613e+01 2.06632e+00 128 2003 3 5.02359e+01 2.03387e+00 62 2003 4 5.68153e+01 2.86982e+00 28 2003 5 nan nan 0 2003 6 6.32889e+01 3.80549e-03 16 2003 7 nan nan 0 2003 8 5.78519e+01 1.09705e+00 48 2003 9 5.09544e+01 2.57466e+00 60 2003 10 4.10785e+01 3.17100e+00 141 2003 11 3.31650e+01 2.17860e+00 138 2003 12 2.83688e+01 4.97547e-01 128 2004 1 3.16674e+01 1.43707e+00 48 2004 2 4.04274e+01 2.24863e+00 39 2004 3 4.85644e+01 1.26812e+00 89 2004 4 5.47833e+01 9.15276e-01 50 2004 5 6.13891e+01 7.90304e-01 41 2004 6 nan nan 0 2004 7 6.29799e+01 1.05708e-01 32 2004 8 5.78215e+01 7.26120e-01 17 2004 9 5.15224e+01 2.62230e+00 69 2004 10 4.00152e+01 1.96263e+00 72 2004 11 3.22300e+01 2.36019e+00 117 2004 12 2.80553e+01 1.49913e-01 102 2005 1 3.14938e+01 1.57088e+00 70 2005 2 3.85797e+01 1.94434e+00 80 2005 3 4.59890e+01 2.06373e+00 73 2005 4 5.57638e+01 8.72195e-01 43 2005 5 6.21612e+01 8.97484e-02 26 2005 6 6.35104e+01 2.22674e-01 33 2005 7 6.24329e+01 4.52446e-01 32 2005 8 nan nan 0 2005 9 4.99027e+01 3.38769e+00 32 2005 10 4.12556e+01 2.45623e+00 158 2005 11 3.23795e+01 2.23630e+00 103 2005 12 2.79519e+01 1.51019e-01 67 2006 1 3.12723e+01 1.89657e+00 84 2006 2 3.73345e+01 1.49261e+00 82 2006 3 4.79339e+01 2.94078e+00 124 2006 4 5.68818e+01 1.02806e+00 40 2006 5 6.19699e+01 9.24263e-01 74 2006 6 6.35580e+01 8.78024e-03 33 2006 7 6.24534e+01 2.80360e-03 16 2006 8 5.86775e+01 6.55582e-01 16 2006 9 4.99593e+01 3.41689e+00 59 2006 10 4.17411e+01 2.91554e+00 157 2006 11 3.30999e+01 2.12496e+00 143 2006 12 2.85985e+01 6.23171e-01 97 2007 1 3.16436e+01 1.82779e+00 42 2007 2 3.92735e+01 1.57579e+00 50 2007 3 4.76191e+01 2.80261e+00 82 2007 4 5.58043e+01 1.17583e+00 37 2007 5 6.11716e+01 8.06346e-01 23 2007 6 6.38600e+01 0.00000e+00 1 2007 7 6.30765e+01 2.08247e-02 17 2007 8 5.74485e+01 5.17229e-03 16 2007 9 5.04984e+01 2.89926e+00 48 2007 10 4.22008e+01 2.89041e+00 105 2007 11 3.20908e+01 1.49162e+00 112 2007 12 2.84002e+01 3.63288e-01 74 2008 1 3.05976e+01 1.89988e+00 70 2008 2 3.88965e+01 3.12764e+00 99 2008 3 4.84221e+01 2.64240e+00 128 2008 4 5.73335e+01 2.68199e-01 33 2008 5 6.23021e+01 2.45475e-01 17 2008 6 6.36121e+01 1.58375e-01 39 2008 7 6.25471e+01 9.38135e-01 54 2008 8 5.63639e+01 9.66542e-01 39 2008 9 5.05731e+01 2.18964e+00 88 2008 10 4.04055e+01 3.18521e+00 143 2008 11 3.24240e+01 1.72543e+00 177 2008 12 2.85398e+01 6.61793e-01 75 2009 1 3.10694e+01 1.59773e+00 112 2009 2 3.77337e+01 2.63219e+00 96 2009 3 4.77617e+01 1.13363e+00 32 2009 4 5.60173e+01 2.22193e-03 16 2009 5 6.31475e+01 1.65841e-03 16 2009 6 6.36248e+01 1.84514e-03 13 2009 7 6.21780e+01 0.00000e+00 1 2009 8 5.93415e+01 3.96873e-03 16 2009 9 4.84573e+01 1.13923e+00 46 2009 10 4.08947e+01 1.09748e+00 84 2009 11 3.36828e+01 1.23036e+00 83 2009 12 2.87862e+01 5.45951e-01 46 2010 1 3.03108e+01 1.56475e+00 117 2010 2 4.03778e+01 1.26925e+00 85 2010 3 4.43861e+01 6.98891e-01 48 2010 4 5.65663e+01 1.81624e+00 64 2010 5 6.26093e+01 1.71297e-03 8 2010 6 6.35394e+01 1.10871e-01 47 2010 7 6.21303e+01 9.94331e-01 26 2010 8 nan nan 0 2010 9 5.00726e+01 2.43020e+00 97 2010 10 4.18029e+01 3.05176e+00 181 2010 11 3.36225e+01 1.87879e+00 102 2010 12 2.84668e+01 5.11207e-01 171 2011 1 3.04370e+01 1.50419e+00 139 2011 2 3.95041e+01 1.43765e+00 85 2011 3 4.90988e+01 1.50844e+00 112 2011 4 5.60554e+01 1.41163e+00 32 2011 5 6.22378e+01 6.49992e-01 56 2011 6 6.35860e+01 1.26090e-01 48 2011 7 6.16988e+01 6.44751e-01 32 2011 8 5.70002e+01 1.22031e+00 49 2011 9 5.01668e+01 1.66510e+00 36 2011 10 4.18934e+01 3.14825e+00 141 2011 11 3.32765e+01 2.20422e+00 119 2011 12 2.84539e+01 6.20526e-01 95 2012 1 3.09791e+01 1.71940e+00 118 2012 2 3.78068e+01 1.04034e-01 21 2012 3 4.64864e+01 1.64937e+00 49 2012 4 5.91609e+01 2.35586e-03 14 2012 5 6.18056e+01 1.03319e+00 43 2012 6 6.36583e+01 4.80162e-02 17 2012 7 6.25908e+01 4.35950e-02 31 2012 8 5.82795e+01 2.95787e-03 8 2012 9 5.31199e+01 2.13544e+00 23 2012 10 4.07644e+01 2.73400e+00 155 2012 11 3.30838e+01 2.05109e+00 174 2012 12 2.83835e+01 3.83153e-01 103 2013 1 3.13402e+01 1.25675e+00 78 2013 2 3.79712e+01 2.94082e+00 80 2013 3 4.90034e+01 2.73311e+00 80 2013 4 5.69851e+01 2.03977e+00 38 2013 5 6.29252e+01 4.08407e-01 19 2013 6 6.34076e+01 2.36866e-03 16 2013 7 6.19716e+01 1.29971e+00 28 2013 8 5.74639e+01 1.27291e+00 64 2013 9 4.93487e+01 1.59669e+00 38 2013 10 4.20304e+01 2.67640e+00 110 2013 11 3.25479e+01 2.41648e+00 134 2013 12 2.82174e+01 4.73042e-01 90 2014 1 3.06181e+01 8.03482e-01 70 2014 2 3.73626e+01 1.46000e+00 75 2014 3 4.94194e+01 3.14260e+00 40 2014 4 5.63634e+01 8.73378e-01 32 2014 5 6.21012e+01 9.81134e-04 5 2014 6 6.36906e+01 4.51225e-03 16 2014 7 6.34755e+01 2.18388e-02 27 2014 8 5.75879e+01 5.38274e-01 16 2014 9 5.22799e+01 1.12787e+00 40 2014 10 4.10207e+01 2.71709e+00 165 2014 11 3.27024e+01 2.47173e+00 160 2014 12 2.84123e+01 4.16606e-01 96 2015 1 3.16948e+01 1.70349e+00 147 2015 2 3.70615e+01 1.63395e+00 104 2015 3 4.93715e+01 2.83308e+00 60 2015 4 5.37169e+01 4.74182e-03 16 2015 5 6.04272e+01 9.81134e-04 5 2015 6 6.36019e+01 1.13208e-02 24 2015 7 6.32556e+01 1.03372e-01 23 2015 8 5.67785e+01 1.87361e+00 48 2015 9 5.12744e+01 1.41458e+00 42 2015 10 4.07101e+01 2.17241e+00 95 2015 11 3.12653e+01 6.64451e-01 27 2015 12 2.82034e+01 2.80944e-01 36 2016 1 3.17804e+01 1.47914e+00 100 2016 2 3.90545e+01 2.55833e+00 123 2016 3 4.70584e+01 2.29053e+00 64 2016 4 5.66541e+01 2.06671e+00 34 2016 5 6.27984e+01 6.14661e-01 18 2016 6 6.37307e+01 7.58231e-02 38 2016 7 6.27544e+01 6.40820e-01 37 2016 8 5.77670e+01 3.26968e-01 28 2016 9 4.90843e+01 1.85013e+00 64 2016 10 4.07113e+01 2.59499e+00 151 2016 11 3.28897e+01 1.85906e+00 165 2016 12 2.84279e+01 5.61364e-01 82 2017 1 3.23018e+01 1.58972e+00 88 2017 2 3.90160e+01 2.55696e+00 134 2017 3 4.78143e+01 2.81837e+00 62 2017 4 5.48778e+01 1.01409e+00 51 2017 5 6.24289e+01 6.38134e-01 50 2017 6 6.36735e+01 4.60325e-02 41 2017 7 6.27452e+01 2.60811e-01 24 2017 8 5.74388e+01 7.24127e-01 32 2017 9 4.98628e+01 2.78035e+00 41 2017 10 4.04438e+01 2.71230e+00 110 2017 11 3.26105e+01 2.18061e+00 124 2017 12 2.83062e+01 5.19103e-01 87 2018 1 3.10916e+01 1.80056e+00 128 2018 2 3.90536e+01 2.14264e+00 47 2018 3 4.60823e+01 1.48944e+00 64 2018 4 5.58461e+01 1.32274e+00 69 2018 5 6.07226e+01 1.96401e-03 16 2018 6 6.35850e+01 9.99410e-02 27 2018 7 6.25290e+01 5.42978e-01 22 2018 8 5.78827e+01 1.72189e+00 32 2018 9 5.09785e+01 2.67544e+00 75 2018 10 4.08917e+01 3.09059e+00 112 2018 11 3.22689e+01 4.38385e-01 34 2018 12 2.84648e+01 4.70789e-01 48 2019 1 3.12753e+01 1.81389e+00 116 2019 2 4.03708e+01 2.30256e+00 32 2019 3 4.61702e+01 2.91431e+00 46 2019 4 5.83875e+01 9.30255e-01 67 2019 5 6.17879e+01 9.84948e-01 84 2019 6 6.35994e+01 4.93884e-02 19 2019 7 6.14530e+01 2.23633e-03 16 2019 8 5.56409e+01 9.97229e-04 15 2019 9 4.87765e+01 1.85067e+00 70 2019 10 4.20186e+01 2.83543e+00 99 2019 11 3.33848e+01 2.54219e+00 89 2019 12 2.84784e+01 4.99799e-01 75 2020 1 3.02895e+01 1.55837e+00 64 2020 2 3.84676e+01 2.92317e+00 100 2020 3 4.62153e+01 1.76798e+00 77 2020 4 5.55929e+01 1.75456e+00 32 2020 5 6.08824e+01 6.52003e-01 32 2020 6 6.37129e+01 7.59338e-02 35 2020 7 6.22700e+01 3.64356e-01 42 2020 8 5.95163e+01 7.81519e-01 23 2020 9 5.06975e+01 2.58000e+00 32 2020 10 4.00469e+01 3.01780e+00 88 2020 11 3.25555e+01 1.69289e+00 103 2020 12 2.84080e+01 4.28467e-01 130 2021 1 3.09719e+01 1.72661e+00 74 2021 2 3.93683e+01 2.53556e+00 113 2021 3 4.74193e+01 2.83126e+00 87 2021 4 5.57185e+01 1.57220e+00 62 2021 5 6.25426e+01 5.50847e-01 48 2021 6 6.38067e+01 3.40022e-03 12 2021 7 6.18990e+01 3.89996e-02 4 2021 8 5.74603e+01 6.25753e-01 19 2021 9 5.33758e+01 8.51315e-01 30 2021 10 4.10182e+01 2.07930e+00 90 2021 11 3.21349e+01 1.90124e+00 125 2021 12 2.83820e+01 5.36819e-01 70 2022 1 3.13723e+01 1.63859e+00 132 2022 2 3.90301e+01 3.07446e+00 84 2022 3 4.72241e+01 3.20685e+00 105 2022 4 5.89224e+01 5.85878e-01 32 2022 5 6.18982e+01 7.70212e-01 56 2022 6 6.35068e+01 8.25892e-02 48 2022 7 6.28843e+01 2.85492e-01 58 2022 8 5.82531e+01 2.12032e+00 28 2022 9 4.86828e+01 1.60973e+00 109 2022 10 4.16179e+01 2.32109e+00 197 2022 11 3.33507e+01 2.20906e+00 126 2022 12 2.83558e+01 5.19954e-01 114 2023 1 3.07160e+01 1.85322e+00 157 2023 2 3.73827e+01 2.78791e+00 115 2023 3 4.68800e+01 1.66990e+00 25 2023 4 5.78901e+01 5.08457e-01 36 2023 5 6.14002e+01 1.05707e+00 48 2023 6 6.36376e+01 1.43893e-01 31 2023 7 6.27056e+01 8.31922e-01 42 2023 8 5.74811e+01 1.68571e+00 67 2023 9 5.11917e+01 2.43630e+00 43 2023 10 4.03974e+01 2.70030e+00 168 2023 11 3.30550e+01 2.21436e+00 118 2023 12 2.80765e+01 2.24622e-01 80 2024 1 3.08880e+01 1.68302e+00 76 2024 2 3.92619e+01 1.26256e+00 50 2024 3 4.89847e+01 3.46420e+00 53 2024 4 nan nan 0