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 1.28545e+00 1.07637e-01 13 2002 8 3.76810e+00 6.51536e-01 19 2002 9 7.12466e+00 2.46359e+00 55 2002 10 9.69320e+00 1.62201e+00 42 2002 11 8.34659e+00 4.71917e-01 70 2002 12 5.37073e+00 1.23225e+00 72 2003 1 6.48882e+00 1.67344e+00 91 2003 2 3.63059e+00 6.52090e-01 88 2003 3 9.94180e+00 2.63939e-01 35 2003 4 8.07498e+00 1.52818e+00 48 2003 5 nan nan 0 2003 6 nan nan 0 2003 7 nan nan 0 2003 8 1.02093e+01 7.71424e-01 40 2003 9 7.32470e+00 1.19112e+00 48 2003 10 3.88443e+00 1.03454e+00 187 2003 11 3.86445e+00 9.88633e-01 133 2003 12 4.57800e+00 5.50181e-01 137 2004 1 4.47123e+00 9.35507e-01 56 2004 2 7.90133e+00 1.78479e+00 37 2004 3 5.24825e+00 1.16008e+00 79 2004 4 4.14144e+00 6.75695e-01 27 2004 5 4.03865e+00 1.28573e+00 60 2004 6 4.99983e+00 3.68003e-01 18 2004 7 8.32045e+00 1.71733e-01 20 2004 8 5.58741e+00 1.19491e-01 16 2004 9 8.64681e+00 3.11960e+00 79 2004 10 7.31613e+00 1.18092e+00 80 2004 11 8.74660e+00 1.54567e+00 78 2004 12 8.26844e+00 1.30289e+00 80 2005 1 6.72899e+00 1.22095e+00 70 2005 2 5.10609e+00 8.67927e-01 80 2005 3 4.40314e+00 6.46817e-01 132 2005 4 1.30096e+01 8.82185e-02 16 2005 5 8.38382e+00 3.19586e-01 17 2005 6 8.07892e+00 8.23358e-01 32 2005 7 9.21133e+00 3.01095e+00 38 2005 8 nan nan 0 2005 9 7.21552e+00 5.86362e-01 32 2005 10 4.17705e+00 1.58197e+00 151 2005 11 4.21854e+00 9.50143e-01 111 2005 12 4.62975e+00 3.48187e-01 64 2006 1 5.61367e+00 8.29846e-01 82 2006 2 4.78143e+00 7.58857e-01 94 2006 3 4.32505e+00 1.41742e+00 112 2006 4 3.19267e+00 7.20762e-01 48 2006 5 3.60272e+00 6.50946e-01 56 2006 6 3.35392e+00 1.99284e+00 18 2006 7 2.50747e+00 2.37415e-01 30 2006 8 4.39858e+00 1.08269e-01 3 2006 9 4.37964e+00 1.74899e-01 78 2006 10 3.73314e+00 8.94944e-01 152 2006 11 4.46359e+00 1.21636e+00 128 2006 12 3.79926e+00 1.36092e+00 104 2007 1 5.24830e+00 1.36448e+00 69 2007 2 4.11378e+00 4.89444e-01 81 2007 3 3.01638e+00 7.71542e-01 107 2007 4 4.55802e+00 1.74612e+00 78 2007 5 3.60624e+00 8.04378e-02 16 2007 6 nan nan 0 2007 7 2.62714e+00 3.28657e-02 16 2007 8 4.13951e+00 1.02214e+00 19 2007 9 2.68673e+00 1.40874e+00 32 2007 10 4.86466e+00 2.78659e+00 90 2007 11 4.62832e+00 6.00018e-01 109 2007 12 5.31967e+00 6.67790e-01 29 2008 1 6.65600e+00 1.19519e+00 61 2008 2 8.21149e+00 7.73640e-01 66 2008 3 8.68495e+00 1.30933e+00 104 2008 4 6.64226e+00 2.99084e-01 32 2008 5 4.40913e+00 4.81282e-02 13 2008 6 4.02100e+00 5.69615e-01 37 2008 7 4.40809e+00 2.21329e-01 32 2008 8 3.87799e+00 1.35354e+00 37 2008 9 7.20694e+00 4.35987e+00 62 2008 10 3.70927e+00 8.62527e-01 113 2008 11 3.23160e+00 8.00946e-01 178 2008 12 6.33794e+00 1.66464e+00 74 2009 1 6.78391e+00 1.23719e+00 96 2009 2 4.53654e+00 6.00584e-01 102 2009 3 3.63416e+00 7.84881e-01 41 2009 4 1.03332e+01 1.94467e-01 16 2009 5 7.24027e+00 7.66880e-02 16 2009 6 9.96641e+00 7.20367e-01 6 2009 7 nan nan 0 2009 8 3.93721e+00 4.92290e-02 2 2009 9 1.12974e+01 1.29212e-01 32 2009 10 7.61067e+00 7.91641e-01 81 2009 11 7.79995e+00 1.95809e+00 119 2009 12 7.81561e+00 5.85391e-01 26 2010 1 8.13852e+00 1.68521e+00 89 2010 2 9.25398e+00 7.51734e-01 69 2010 3 7.64670e+00 1.14031e+00 72 2010 4 4.57096e+00 8.20809e-01 82 2010 5 5.61891e+00 7.29588e-01 45 2010 6 6.03598e+00 4.16386e-01 59 2010 7 5.24626e+00 8.62987e-01 41 2010 8 nan nan 0 2010 9 4.27699e+00 6.88867e-01 105 2010 10 2.87187e+00 8.40403e-01 185 2010 11 3.54289e+00 5.54883e-01 106 2010 12 3.96452e+00 6.00062e-01 171 2011 1 3.83747e+00 7.46297e-01 157 2011 2 6.13322e+00 9.96173e-01 75 2011 3 7.71863e+00 2.04126e+00 80 2011 4 4.97971e+00 1.31084e-01 46 2011 5 2.42738e+00 6.13310e-01 48 2011 6 2.67592e+00 2.20711e-01 39 2011 7 4.28472e+00 1.25979e+00 25 2011 8 4.94530e+00 5.21935e-01 47 2011 9 5.07729e+00 8.65005e-01 27 2011 10 2.91684e+00 1.44766e+00 139 2011 11 3.01733e+00 4.95684e-01 88 2011 12 3.19418e+00 6.56456e-01 82 2012 1 4.41492e+00 1.20972e+00 131 2012 2 3.21949e+00 3.99139e-01 31 2012 3 8.21344e+00 2.47589e+00 42 2012 4 3.94048e+00 3.00660e-01 48 2012 5 2.63176e+00 3.66458e-02 16 2012 6 nan nan 0 2012 7 4.24214e+00 8.54676e-02 16 2012 8 6.63682e+00 1.14381e-01 16 2012 9 6.36035e+00 1.18089e+00 34 2012 10 4.73887e+00 8.43435e-01 135 2012 11 3.24710e+00 7.17847e-01 158 2012 12 2.99047e+00 1.32864e+00 127 2013 1 4.74786e+00 4.20876e-01 64 2013 2 6.56521e+00 2.66754e+00 98 2013 3 7.23951e+00 2.23441e+00 88 2013 4 5.00335e+00 1.24080e+00 38 2013 5 5.09007e+00 7.46143e-02 16 2013 6 nan nan 0 2013 7 nan nan 0 2013 8 1.07564e+01 4.95954e-01 47 2013 9 8.15378e+00 7.93972e-01 74 2013 10 5.18715e+00 1.42297e+00 142 2013 11 4.16894e+00 1.27737e+00 121 2013 12 3.96563e+00 5.78591e-01 75 2014 1 6.96711e+00 5.37177e-01 80 2014 2 4.55173e+00 2.03502e-01 64 2014 3 6.94733e+00 6.83153e-01 78 2014 4 1.04613e+01 1.62193e+00 39 2014 5 1.06480e+01 6.68914e-02 16 2014 6 nan nan 0 2014 7 5.95088e+00 2.25249e-01 31 2014 8 2.61765e+00 1.36855e+00 7 2014 9 4.35839e+00 5.24851e-01 57 2014 10 3.59869e+00 1.23046e+00 186 2014 11 3.87794e+00 6.28350e-01 156 2014 12 3.01122e+00 5.44998e-01 113 2015 1 5.35384e+00 1.39406e+00 144 2015 2 4.69198e+00 6.88075e-01 134 2015 3 4.42374e+00 3.87533e-01 24 2015 4 1.03124e+01 1.57636e-01 16 2015 5 5.21417e+00 7.01503e-01 28 2015 6 5.13674e+00 8.11508e-02 16 2015 7 4.25263e+00 1.36882e-01 32 2015 8 2.87451e+00 5.99813e-01 54 2015 9 2.97300e+00 7.99611e-01 33 2015 10 4.55571e+00 1.64532e+00 101 2015 11 8.33414e+00 8.95896e-01 50 2015 12 4.66729e+00 3.82835e-01 61 2016 1 9.38221e+00 1.29526e+00 36 2016 2 8.72134e+00 6.37731e-01 95 2016 3 7.57930e+00 8.79053e-01 72 2016 4 9.99293e+00 8.97457e-01 46 2016 5 4.82504e+00 6.25655e-02 16 2016 6 4.39487e+00 6.80349e-01 46 2016 7 3.19798e+00 1.76723e+00 47 2016 8 6.74646e+00 1.23633e+00 45 2016 9 3.65246e+00 2.19891e-01 74 2016 10 2.85381e+00 1.38273e+00 159 2016 11 2.25868e+00 5.76676e-01 133 2016 12 4.99870e+00 6.76749e-01 60 2017 1 1.02353e+01 1.33112e+00 92 2017 2 7.94167e+00 6.00802e-01 95 2017 3 5.79185e+00 1.73141e+00 77 2017 4 5.07907e+00 1.22578e+00 34 2017 5 2.55094e+00 1.85326e+00 51 2017 6 7.46789e+00 7.25489e-02 16 2017 7 8.59156e+00 4.29338e+00 24 2017 8 8.19651e+00 6.17977e-01 42 2017 9 5.79892e+00 2.20960e+00 56 2017 10 7.52541e+00 2.27726e+00 101 2017 11 5.15282e+00 2.17254e+00 103 2017 12 3.17954e+00 6.02966e-01 95 2018 1 3.75589e+00 1.12157e+00 113 2018 2 6.78124e+00 2.08266e+00 21 2018 3 5.94821e+00 1.18762e+00 58 2018 4 3.47809e+00 5.56233e-01 91 2018 5 2.91815e+00 2.59060e-01 24 2018 6 9.47767e+00 2.29984e-01 16 2018 7 5.17326e+00 1.58012e-01 14 2018 8 6.13273e+00 5.33984e-01 32 2018 9 9.65318e+00 2.25280e+00 60 2018 10 5.31666e+00 1.01924e+00 96 2018 11 7.18259e+00 1.48842e+00 51 2018 12 7.72678e+00 4.46556e-01 48 2019 1 9.91838e+00 1.36815e+00 38 2019 2 4.78100e+00 8.11530e-01 32 2019 3 4.17451e+00 8.06325e-01 58 2019 4 6.52486e+00 1.46721e+00 69 2019 5 7.40170e+00 1.80826e+00 100 2019 6 4.95546e+00 3.70284e-01 28 2019 7 2.84447e+00 2.08693e-02 4 2019 8 3.19085e+00 1.23088e+00 27 2019 9 3.37280e+00 7.68093e-01 48 2019 10 3.10599e+00 3.62818e-01 95 2019 11 3.24467e+00 1.07018e+00 93 2019 12 3.90665e+00 5.71962e-01 32 2020 1 8.05433e+00 2.71940e+00 64 2020 2 8.20512e+00 1.07584e+00 111 2020 3 7.77649e+00 1.44849e+00 66 2020 4 5.02035e+00 9.01587e-01 33 2020 5 4.89321e+00 1.58163e+00 45 2020 6 4.81396e+00 3.60209e-01 17 2020 7 3.99110e+00 1.55004e-01 31 2020 8 4.21782e+00 8.64424e-01 27 2020 9 nan nan 0 2020 10 7.49718e+00 7.25100e-01 64 2020 11 4.48300e+00 7.92643e-01 80 2020 12 4.87598e+00 8.99785e-01 142 2021 1 5.37297e+00 6.91868e-01 79 2021 2 5.31946e+00 1.07159e+00 92 2021 3 5.91917e+00 9.75338e-01 96 2021 4 8.69237e+00 9.23010e-01 70 2021 5 6.54022e+00 1.96079e+00 37 2021 6 1.14104e+01 1.07263e-01 3 2021 7 9.65694e+00 5.49625e-01 31 2021 8 nan nan 0 2021 9 9.00847e+00 9.41178e-01 43 2021 10 1.08655e+01 8.40044e-01 17 2021 11 3.86351e+00 7.38216e-01 159 2021 12 5.54929e+00 2.35851e+00 46 2022 1 5.38122e+00 7.39819e-01 125 2022 2 5.50806e+00 1.31146e+00 86 2022 3 4.32028e+00 2.16364e+00 107 2022 4 8.70508e+00 1.36495e-01 8 2022 5 7.67948e+00 9.11406e-01 44 2022 6 3.96445e+00 1.23411e+00 32 2022 7 5.49803e+00 5.63100e-01 38 2022 8 9.81011e+00 1.05249e+00 34 2022 9 6.09917e+00 1.83114e+00 99 2022 10 3.49978e+00 7.35613e-01 192 2022 11 3.42371e+00 9.99398e-01 103 2022 12 5.08056e+00 1.21487e+00 99 2023 1 6.29138e+00 8.86822e-01 178 2023 2 7.95755e+00 1.31995e+00 97 2023 3 4.95954e+00 1.07769e+00 18 2023 4 5.31580e+00 1.46950e+00 36 2023 5 2.86727e+00 6.61638e-01 32 2023 6 nan nan 0 2023 7 6.28212e+00 5.11297e-01 80 2023 8 3.65001e+00 8.70950e-01 53 2023 9 2.17990e+00 1.54218e+00 96 2023 10 2.36225e+00 1.10282e+00 143 2023 11 2.72355e+00 9.37949e-01 113 2023 12 3.14734e+00 7.38281e-01 76 2024 1 4.09529e+00 6.64572e-01 70 2024 2 6.07747e+00 6.75605e-01 93 2024 3 6.94152e+00 2.12266e+00 39 2024 4 nan nan 0