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 1.11966e+01 7.13746e-01 17 2002 8 7.19519e+00 1.01511e+00 46 2002 9 4.25431e+00 2.85057e+00 80 2002 10 3.05553e+00 1.57353e+00 106 2002 11 6.00574e-01 3.71141e-01 141 2002 12 3.33697e+00 1.92330e+00 155 2003 1 2.77165e+00 2.27521e+00 186 2003 2 6.82172e+00 2.49656e+00 109 2003 3 4.50626e-02 6.03435e-02 44 2003 4 1.08816e+00 9.29933e-01 126 2003 5 2.90347e+00 2.03820e+00 43 2003 6 3.38792e+00 1.88954e+00 50 2003 7 4.30903e-01 4.15764e-01 48 2003 8 4.08223e+00 5.20995e+00 48 2003 9 3.23964e+00 5.36169e+00 109 2003 10 5.56519e+00 3.10672e+00 191 2003 11 3.84162e+00 2.92597e+00 224 2003 12 7.72333e+00 4.90688e+00 155 2004 1 1.47597e+01 6.29376e+00 145 2004 2 1.39320e+00 8.00777e-01 63 2004 3 6.49182e+00 4.65116e+00 176 2004 4 9.85767e+00 6.35226e+00 122 2004 5 1.42082e+01 4.62300e+00 146 2004 6 7.38125e+00 5.53901e-01 15 2004 7 6.40558e+00 1.61359e+00 64 2004 8 7.10080e+00 3.61818e+00 65 2004 9 3.93746e+00 4.03214e+00 46 2004 10 3.10967e+00 1.87617e+00 70 2004 11 2.84522e+00 1.77748e+00 159 2004 12 9.98395e-01 9.56755e-01 119 2005 1 3.42687e+00 2.14057e+00 198 2005 2 5.07527e+00 2.91660e+00 144 2005 3 3.49982e+00 3.20899e+00 175 2005 4 6.24619e-01 1.38750e-01 16 2005 5 5.18304e+00 3.29454e+00 111 2005 6 6.36148e+00 4.79509e+00 60 2005 7 1.70467e+00 1.46616e+00 96 2005 8 1.83617e+00 2.02473e+00 38 2005 9 8.93489e+00 6.27967e+00 67 2005 10 8.64291e+00 3.79213e+00 240 2005 11 1.19122e+01 7.33314e+00 222 2005 12 8.35720e+00 3.97589e+00 124 2006 1 3.75751e+00 2.48602e+00 102 2006 2 4.32255e+00 2.56451e+00 162 2006 3 5.85792e+00 3.46401e+00 240 2006 4 1.04395e+01 5.65415e+00 151 2006 5 1.28799e+01 4.96822e+00 128 2006 6 1.90104e+01 5.90675e+00 64 2006 7 1.16441e+01 5.16121e+00 48 2006 8 1.26211e+01 4.12105e+00 128 2006 9 7.60343e+00 3.52587e+00 112 2006 10 6.96547e+00 3.15026e+00 180 2006 11 1.22237e+01 5.19726e+00 137 2006 12 1.01849e+01 6.03266e+00 98 2007 1 5.28760e-01 3.70873e-01 65 2007 2 1.92303e+00 1.25085e+00 186 2007 3 7.54873e+00 2.93551e+00 254 2007 4 9.37521e+00 3.86498e+00 147 2007 5 1.11657e+01 5.75282e+00 23 2007 6 1.22131e+01 5.05182e+00 48 2007 7 1.08901e+01 5.53893e+00 112 2007 8 7.04387e+00 2.42222e+00 80 2007 9 1.02213e+00 8.34220e-01 60 2007 10 3.95483e+00 4.27816e+00 128 2007 11 7.21746e+00 4.38606e+00 247 2007 12 1.14734e+01 1.55826e+00 64 2008 1 6.00150e+00 5.34385e+00 110 2008 2 3.54811e+00 3.32323e+00 218 2008 3 5.08443e-01 5.78345e-01 172 2008 4 2.87099e+00 1.84432e+00 112 2008 5 1.13730e+01 3.86343e+00 96 2008 6 1.60945e+01 3.46814e+00 128 2008 7 1.43904e+01 2.58991e+00 53 2008 8 1.38333e+01 7.77907e-01 16 2008 9 3.88883e+00 8.14812e+00 132 2008 10 4.79786e+00 3.19928e+00 256 2008 11 7.36814e+00 4.27012e+00 250 2008 12 4.66663e+00 4.97686e+00 135 2009 1 3.44973e+00 2.57996e+00 148 2009 2 8.88496e+00 3.71841e+00 176 2009 3 7.58494e+00 4.73490e+00 125 2009 4 1.31061e-01 1.46371e-01 48 2009 5 5.58120e+00 2.92170e+00 80 2009 6 1.31263e+01 6.76735e-01 16 2009 7 1.23188e+01 2.42825e+00 37 2009 8 8.71575e+00 1.74540e+00 40 2009 9 1.48158e+01 1.91732e+01 64 2009 10 2.90196e+00 1.92767e+00 181 2009 11 9.82458e-01 7.17321e-01 160 2009 12 5.04803e-02 2.27118e-02 19 2010 1 2.58038e-01 1.66971e-01 25 2010 2 4.45194e-02 1.32047e-02 47 2010 3 1.53221e+00 1.45636e+00 153 2010 4 4.14935e+00 2.78973e+00 144 2010 5 2.43431e+00 6.56444e-01 48 2010 6 7.68121e+00 2.26654e+00 96 2010 7 8.97792e+00 8.40053e-01 64 2010 8 1.15282e+01 3.02173e+00 32 2010 9 8.79646e+00 4.61113e+00 144 2010 10 1.10799e+01 4.06041e+00 304 2010 11 1.03876e+01 4.52767e+00 272 2010 12 8.11604e+00 5.26201e+00 160 2011 1 5.72294e+00 2.95362e+00 168 2011 2 4.49417e+00 3.39160e+00 112 2011 3 5.92065e+00 3.75183e+00 128 2011 4 6.34269e+00 2.99799e+00 144 2011 5 1.18852e+01 2.51857e+00 80 2011 6 8.98395e+00 3.23019e+00 112 2011 7 9.85792e+00 2.76065e+00 80 2011 8 7.06232e+00 2.58487e+00 67 2011 9 1.09562e+01 5.09389e+00 160 2011 10 9.50148e+00 4.53908e+00 239 2011 11 5.30843e+00 5.40898e+00 102 2011 12 6.63599e+00 5.04701e+00 177 2012 1 7.98663e+00 4.58362e+00 159 2012 2 2.64498e+00 1.15162e+00 30 2012 3 4.92706e+00 1.90054e+00 144 2012 4 1.09073e+01 5.55246e+00 208 2012 5 1.57793e+01 5.24534e+00 144 2012 6 3.02991e+00 3.69334e+00 64 2012 7 3.61997e+00 1.92954e+00 80 2012 8 6.86636e-01 5.95483e-01 72 2012 9 1.45036e+00 6.97903e-01 80 2012 10 2.09509e+00 1.07308e+00 189 2012 11 1.22598e+01 4.95230e+00 224 2012 12 1.71203e+01 3.15080e+00 76 2013 1 1.23084e+01 4.54423e+00 110 2013 2 6.21616e+00 4.15565e+00 144 2013 3 4.07316e-01 3.90163e-01 84 2013 4 1.21265e+00 5.80079e-01 78 2013 5 3.89296e+00 1.02457e+00 80 2013 6 7.06284e+00 1.00946e+00 32 2013 7 nan nan 0 2013 8 1.24790e+00 3.35762e+00 74 2013 9 1.75152e+00 1.68465e+00 144 2013 10 2.64959e+00 1.67164e+00 176 2013 11 3.62571e+00 2.46798e+00 83 2013 12 7.44671e+00 6.66351e+00 130 2014 1 5.08910e-01 3.05239e-01 58 2014 2 2.06591e+00 1.45131e+00 144 2014 3 7.00712e-01 5.95652e-01 109 2014 4 8.78790e-01 6.52337e-01 48 2014 5 1.28839e+00 1.41760e+00 118 2014 6 5.58508e+00 1.25296e+00 96 2014 7 8.96968e+00 1.99415e+00 48 2014 8 1.01807e+01 3.79600e+00 84 2014 9 4.84428e+00 1.92570e+00 160 2014 10 5.34996e+00 2.68670e+00 310 2014 11 6.01638e+00 3.40135e+00 152 2014 12 4.55369e+00 3.77155e+00 172 2015 1 1.06287e+00 1.49127e+00 146 2015 2 1.12716e+00 8.30533e-01 141 2015 3 3.68645e+00 1.55598e+00 144 2015 4 8.31896e+00 9.83958e-01 48 2015 5 3.13054e+00 2.12007e+00 144 2015 6 6.43891e+00 4.97404e+00 43 2015 7 7.67446e+00 2.83498e+00 64 2015 8 9.72922e+00 2.75866e+00 98 2015 9 3.19381e+00 1.85884e+00 86 2015 10 6.30035e+00 1.73589e+00 131 2015 11 2.40405e+00 5.90410e+00 188 2015 12 1.06812e+00 8.69833e-01 114 2016 1 3.23830e-02 1.87096e-02 20 2016 2 6.29592e-01 7.46963e-01 127 2016 3 4.94997e+00 4.60822e+00 93 2016 4 3.31079e-01 2.29667e-01 80 2016 5 7.24374e+00 3.09129e+00 112 2016 6 9.52701e+00 1.96467e+00 112 2016 7 9.12323e+00 5.19030e+00 160 2016 8 9.65736e+00 2.20280e+01 123 2016 9 3.62955e+00 2.19655e+00 160 2016 10 3.94905e+00 2.47529e+00 256 2016 11 1.36047e+01 8.13337e+00 176 2016 12 6.99195e+00 3.23763e+00 142 2017 1 1.85480e+00 2.16819e+00 46 2017 2 1.38897e+00 1.08027e+00 195 2017 3 6.69308e+00 6.16153e+00 177 2017 4 8.64374e+00 2.55138e+00 112 2017 5 9.21441e+00 4.76063e+00 96 2017 6 8.73974e+00 1.86697e+00 48 2017 7 1.93296e+00 1.19871e+00 64 2017 8 5.26090e+00 9.57695e-01 36 2017 9 4.73694e+00 1.61800e+00 128 2017 10 4.33542e+00 3.32150e+00 175 2017 11 1.06364e+01 4.13288e+00 252 2017 12 9.47032e+00 6.24316e+00 107 2018 1 7.23517e+00 4.93861e+00 176 2018 2 4.81569e+00 4.11815e+00 96 2018 3 7.25670e+00 4.63020e+00 192 2018 4 1.03029e+01 3.68395e+00 144 2018 5 5.80132e+00 2.06141e+00 82 2018 6 6.52444e+00 3.67961e+00 62 2018 7 6.82599e+00 4.07684e+00 66 2018 8 1.66358e+00 1.00556e+00 62 2018 9 4.52371e+00 1.91283e+00 128 2018 10 1.90023e+00 1.67748e+00 242 2018 11 1.39893e+00 8.46758e-01 100 2018 12 1.50140e-01 6.16256e-02 36 2019 1 4.90409e-02 4.66788e-02 55 2019 2 4.23277e-01 2.91229e-01 62 2019 3 2.44086e+00 1.19869e+00 209 2019 4 3.48674e+00 2.11423e+00 112 2019 5 7.28310e+00 2.07192e+00 129 2019 6 9.15813e+00 1.22767e+00 88 2019 7 5.38804e+00 1.19216e+00 64 2019 8 9.47238e+00 6.03862e+00 134 2019 9 5.30443e+00 4.05204e+00 240 2019 10 4.71966e+00 3.13898e+00 128 2019 11 9.68997e+00 6.72381e+00 176 2019 12 4.65013e+00 3.57209e+00 64 2020 1 6.61187e-01 5.62673e-01 104 2020 2 1.21025e+00 1.44108e+00 80 2020 3 5.53548e-01 5.42595e-01 77 2020 4 2.14319e+00 1.02741e+00 96 2020 5 3.11757e+00 3.57146e+00 96 2020 6 5.58500e+00 3.65600e+00 80 2020 7 9.14964e+00 1.95725e+00 46 2020 8 7.95278e+00 1.01290e+00 48 2020 9 9.40210e-01 7.54984e-01 64 2020 10 2.94084e+00 4.87010e+00 144 2020 11 2.83512e+00 2.84425e+00 179 2020 12 4.81159e+00 2.85183e+00 227 2021 1 1.45732e+00 1.25825e+00 87 2021 2 2.04365e+00 1.57174e+00 48 2021 3 6.75823e-01 5.95183e-01 111 2021 4 2.31060e+00 1.14984e+00 145 2021 5 5.08106e+00 4.18869e+00 92 2021 6 9.61180e+00 3.54210e+00 32 2021 7 2.86918e+00 1.77402e+00 80 2021 8 3.10363e+00 2.93015e+00 144 2021 9 3.16048e+00 5.14555e+00 96 2021 10 1.13833e+00 1.07162e+00 112 2021 11 5.97857e+00 3.33087e+00 207 2021 12 8.16952e+00 3.24894e+00 144 2022 1 4.56863e+00 3.45381e+00 159 2022 2 2.56179e+00 1.05134e+00 116 2022 3 3.78325e+00 3.37327e+00 194 2022 4 1.76523e+00 6.55294e-01 35 2022 5 5.64985e+00 2.15381e+00 52 2022 6 7.60358e+00 3.41728e+00 168 2022 7 1.07377e+01 1.79728e+00 108 2022 8 6.63008e+00 1.13319e+00 68 2022 9 2.30716e+00 1.81077e+00 115 2022 10 7.40895e+00 4.06602e+00 301 2022 11 7.59581e+00 1.33777e+00 99 2022 12 9.49805e+00 4.14710e+00 144 2023 1 8.58011e+00 4.58222e+00 167 2023 2 1.08077e+00 1.40081e+00 110 2023 3 3.66028e+00 1.92590e+00 94 2023 4 4.02765e+00 2.84554e+00 80 2023 5 1.00030e+01 1.50788e+00 65 2023 6 7.05906e+00 2.06815e+00 79 2023 7 7.46283e+00 4.46185e+00 54 2023 8 8.59927e+00 5.14666e+00 64 2023 9 5.20725e+00 4.01188e+00 165 2023 10 4.49982e+00 2.59059e+00 197 2023 11 9.20396e+00 4.71419e+00 115 2023 12 1.52668e+00 2.36914e+00 58 2024 1 8.81247e-01 6.85650e-01 69 2024 2 9.47490e-01 9.97423e-01 74 2024 3 8.05402e-01 4.15145e-01 59 2024 4 nan nan 0