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 7.84617e+00 6.13179e+00 68 2002 8 5.71991e+00 2.22174e+00 124 2002 9 7.13470e+00 2.29360e+00 157 2002 10 5.41214e+00 5.19742e+00 63 2002 11 1.05487e+01 1.11947e+00 62 2002 12 3.53419e+00 3.83330e+00 82 2003 1 nan nan 0 2003 2 6.43430e+00 1.41743e+00 23 2003 3 7.44861e+00 1.65234e+00 62 2003 4 6.03057e+00 2.36042e+00 97 2003 5 1.11259e+00 1.42298e+00 17 2003 6 1.04484e+01 3.35321e+00 73 2003 7 7.30377e+00 5.77243e+00 96 2003 8 1.45747e+01 5.63041e+00 113 2003 9 1.08383e+01 4.52038e+00 117 2003 10 7.06911e+00 1.44265e+00 143 2003 11 3.63945e+00 4.92285e+00 19 2003 12 5.66895e-01 9.07882e-01 44 2004 1 nan nan 0 2004 2 6.20269e+00 4.77062e+00 39 2004 3 1.42315e+01 1.67034e+00 51 2004 4 6.33870e+00 5.81628e+00 55 2004 5 9.59880e-01 1.32632e+00 90 2004 6 1.97436e+00 3.20049e+00 74 2004 7 7.25787e+00 5.60145e+00 50 2004 8 9.52823e+00 2.57093e+00 56 2004 9 8.66325e+00 3.34075e+00 163 2004 10 6.38137e+00 1.95020e+00 68 2004 11 9.11319e+00 1.41775e+00 56 2004 12 2.81135e+00 3.55328e+00 65 2005 1 nan nan 0 2005 2 5.98388e+00 5.16471e+00 52 2005 3 5.42323e+00 1.37809e+00 81 2005 4 8.49544e+00 3.75078e+00 166 2005 5 5.54179e+00 3.02561e+00 71 2005 6 2.52435e+01 3.01821e+00 29 2005 7 8.73742e+00 5.66340e+00 106 2005 8 1.48758e+01 5.42946e+00 169 2005 9 1.67491e+01 3.60178e+00 102 2005 10 1.10394e+01 1.50651e+00 104 2005 11 4.70466e+00 4.68352e+00 22 2005 12 nan nan 0 2006 1 7.18581e+00 4.43652e+00 52 2006 2 2.82600e+00 7.97189e-01 21 2006 3 1.64474e+01 4.09547e+00 80 2006 4 9.97639e+00 5.23306e+00 116 2006 5 8.47223e+00 9.39938e+00 40 2006 6 4.99638e+00 4.59030e+00 79 2006 7 1.14874e+01 4.41983e+00 29 2006 8 1.02906e+01 4.50157e+00 133 2006 9 1.41565e+01 3.14747e+00 27 2006 10 7.77354e+00 4.34598e+00 66 2006 11 7.98267e+00 1.93305e+00 52 2006 12 8.56027e+00 5.15120e+00 45 2007 1 2.92823e+00 2.46547e+00 23 2007 2 5.14038e+00 2.34057e+00 6 2007 3 5.48544e+00 4.23845e+00 126 2007 4 9.15686e+00 6.61523e+00 46 2007 5 2.55770e+00 3.75124e+00 75 2007 6 7.25358e+00 4.87884e+00 88 2007 7 1.14991e+01 4.82663e+00 143 2007 8 1.75453e+01 3.77786e+00 46 2007 9 1.60473e+01 5.18282e+00 222 2007 10 9.48829e+00 3.91915e+00 135 2007 11 6.83031e+00 0.00000e+00 2 2007 12 nan nan 0 2008 1 1.34708e-02 0.00000e+00 1 2008 2 nan nan 0 2008 3 8.77969e+00 6.56802e+00 108 2008 4 7.38964e+00 3.80329e+00 57 2008 5 4.04324e+00 3.33115e+00 72 2008 6 4.69673e-01 1.13835e+00 14 2008 7 6.25767e+00 4.26040e+00 58 2008 8 1.20546e+01 4.08950e+00 210 2008 9 1.16421e+01 4.28207e+00 137 2008 10 6.25408e+00 6.81301e+00 132 2008 11 1.38750e+01 8.95975e-01 25 2008 12 nan nan 0 2009 1 nan nan 0 2009 2 nan nan 0 2009 3 4.48841e+00 4.40228e+00 146 2009 4 1.25444e+01 3.29132e+00 127 2009 5 1.69321e+00 2.37045e+00 79 2009 6 1.83866e+00 1.49797e+00 35 2009 7 2.24163e+00 2.20634e+00 84 2009 8 7.23679e+00 7.63270e+00 77 2009 9 2.20388e+01 3.60585e+00 127 2009 10 5.33117e+00 0.00000e+00 1 2009 11 7.93471e+00 2.69386e+00 20 2009 12 nan nan 0 2010 1 nan nan 0 2010 2 1.33320e+01 5.31214e+00 34 2010 3 1.27828e+01 7.32783e+00 160 2010 4 1.47121e+01 5.31582e+00 29 2010 5 7.93375e+00 6.41032e+00 45 2010 6 1.07872e+00 1.62839e+00 100 2010 7 1.10791e+01 5.74850e+00 101 2010 8 1.98244e+01 3.98095e+00 184 2010 9 8.05928e+00 5.02481e+00 81 2010 10 8.49952e+00 5.24145e+00 133 2010 11 1.04154e+01 2.89864e+00 34 2010 12 1.84538e+01 2.16022e+00 6 2011 1 1.48870e-01 2.79280e-01 24 2011 2 nan nan 0 2011 3 1.57348e+01 5.94270e+00 146 2011 4 7.73829e+00 5.99097e+00 63 2011 5 3.40931e+00 3.31145e+00 34 2011 6 2.67482e+00 1.85313e+00 39 2011 7 9.87103e+00 8.63867e+00 114 2011 8 1.11040e+01 8.53432e+00 167 2011 9 8.06602e+00 8.34262e+00 134 2011 10 1.06937e+00 1.60233e+00 79 2011 11 3.86560e+00 3.01471e+00 36 2011 12 8.32346e+00 4.88233e+00 72 2012 1 1.22046e+00 2.71114e+00 35 2012 2 9.24231e-01 1.39404e+00 30 2012 3 4.07757e+00 4.37322e+00 151 2012 4 4.97835e+00 5.12263e+00 122 2012 5 3.54364e+00 4.63828e+00 63 2012 6 9.54794e+00 5.61989e+00 43 2012 7 1.94608e+01 5.68744e+00 109 2012 8 1.31983e+01 5.52155e+00 180 2012 9 7.72078e+00 1.88747e+00 150 2012 10 8.92976e+00 2.15449e+00 76 2012 11 2.69446e+01 1.90746e+00 6 2012 12 1.46604e+01 2.22004e+00 9 2013 1 2.33873e-01 4.27798e-01 16 2013 2 1.60509e+00 3.11894e-01 3 2013 3 1.73533e+01 3.61526e+00 74 2013 4 1.34200e+01 6.92514e+00 44 2013 5 2.09098e+00 1.79937e+00 34 2013 6 1.93587e+00 1.94830e+00 46 2013 7 1.14191e+01 4.86501e+00 118 2013 8 1.58311e+01 3.92955e+00 109 2013 9 9.34652e+00 4.27730e+00 177 2013 10 1.07207e+01 1.78560e+00 74 2013 11 1.16654e+01 1.36498e+00 6 2013 12 nan nan 0 2014 1 nan nan 0 2014 2 nan nan 0 2014 3 nan nan 0 2014 4 1.12244e+01 1.13471e+01 60 2014 5 4.06670e+00 5.83467e+00 109 2014 6 1.96350e+00 1.86703e+00 32 2014 7 6.12287e+00 4.14791e+00 82 2014 8 1.33162e+01 4.16390e+00 49 2014 9 9.67402e+00 5.42704e+00 117 2014 10 1.08526e+01 4.31651e+00 115 2014 11 nan nan 0 2014 12 1.20053e+01 2.26547e+00 30 2015 1 nan nan 0 2015 2 nan nan 0 2015 3 2.25294e+01 5.37021e+00 39 2015 4 1.20504e+01 7.25587e+00 119 2015 5 1.79987e+01 7.65105e+00 50 2015 6 5.29033e+00 6.74600e+00 73 2015 7 9.52715e+00 8.66948e+00 63 2015 8 1.13749e+01 5.42351e+00 114 2015 9 1.38391e+01 3.76175e+00 150 2015 10 1.51437e+01 4.64969e+00 86 2015 11 7.72828e+00 5.05216e+00 180 2015 12 6.41328e+00 0.00000e+00 1 2016 1 6.59280e+00 3.81714e+00 29 2016 2 7.43909e+00 6.09315e+00 30 2016 3 1.04436e+01 4.15008e+00 55 2016 4 1.29173e+01 3.34696e+00 106 2016 5 1.38436e+00 1.28044e+00 23 2016 6 8.77056e+00 5.54771e+00 85 2016 7 1.50664e+01 1.52934e+00 63 2016 8 2.32638e+01 3.85013e+00 171 2016 9 1.43681e+01 3.28660e+00 120 2016 10 1.41674e+01 4.14689e+00 29 2016 11 9.31224e+00 1.38804e+00 46 2016 12 1.72950e+01 7.11120e-02 5 2017 1 2.96996e+00 1.98353e+00 28 2017 2 8.05418e+00 3.89923e+00 59 2017 3 1.26197e+01 6.87231e+00 48 2017 4 9.97196e-01 1.81182e+00 27 2017 5 3.49558e+00 3.80742e+00 121 2017 6 3.96148e+00 2.53296e+00 54 2017 7 9.55725e+00 4.12410e+00 121 2017 8 1.08270e+01 5.34480e+00 89 2017 9 9.81241e+00 3.54571e+00 137 2017 10 5.68404e+00 2.96056e+00 35 2017 11 6.36839e+00 3.79679e+00 103 2017 12 nan nan 0 2018 1 7.67286e+00 1.57307e+00 44 2018 2 4.19598e-01 4.83567e-01 18 2018 3 1.53553e+01 7.79510e+00 169 2018 4 1.92040e+01 4.74541e+00 89 2018 5 1.11953e+01 8.45528e+00 112 2018 6 1.58516e+00 1.36123e+00 31 2018 7 5.39421e+00 3.82817e+00 82 2018 8 1.07699e+01 4.35090e+00 123 2018 9 8.08562e+00 4.67853e+00 113 2018 10 8.37974e+00 4.46082e+00 49 2018 11 1.58045e+01 4.02382e+00 10 2018 12 1.93554e+01 0.00000e+00 1 2019 1 7.84396e+00 4.32525e+00 116 2019 2 5.36115e+00 1.29356e+00 24 2019 3 7.44534e+00 3.39503e+00 45 2019 4 1.14604e+01 6.05005e+00 70 2019 5 8.74361e+00 6.46934e+00 34 2019 6 1.19741e+00 1.69339e+00 6 2019 7 3.20750e+00 3.71672e+00 88 2019 8 5.95315e+00 5.82322e+00 165 2019 9 1.59003e+01 3.30972e+00 63 2019 10 1.15195e+01 4.55002e+00 115 2019 11 1.00267e+01 2.73787e+00 9 2019 12 nan nan 0 2020 1 3.24151e-01 6.06102e-01 45 2020 2 5.72317e+00 5.95530e+00 75 2020 3 4.77442e+00 4.56208e+00 93 2020 4 7.74089e+00 2.79322e+00 43 2020 5 6.08428e+00 5.69514e+00 118 2020 6 8.37544e-01 1.54006e+00 126 2020 7 4.43009e+00 4.60796e+00 91 2020 8 4.24659e+00 3.03779e+00 42 2020 9 6.99435e+00 2.38533e+00 105 2020 10 1.87213e+00 1.82991e+00 103 2020 11 2.65204e+00 2.21690e+00 118 2020 12 6.65935e+00 1.50456e+00 31 2021 1 5.27610e+00 5.25404e+00 43 2021 2 6.53893e+00 3.22820e+00 38 2021 3 1.36787e+01 4.65387e+00 124 2021 4 1.52594e+01 7.03187e+00 153 2021 5 1.45273e+01 1.13670e+01 46 2021 6 1.82309e+01 5.12413e+00 40 2021 7 1.34067e+00 2.20835e+00 10 2021 8 6.95373e+00 6.79274e+00 79 2021 9 1.29502e+01 5.39870e+00 165 2021 10 9.51103e+00 2.12352e+00 34 2021 11 7.89324e+00 8.52684e-01 42 2021 12 nan nan 0 2022 1 5.64800e+00 3.73440e+00 31 2022 2 1.22014e-01 1.54368e-02 6 2022 3 5.57380e+00 2.95645e+00 54 2022 4 5.29046e-01 6.85811e-01 12 2022 5 nan nan 0 2022 6 3.80432e+00 4.21571e+00 92 2022 7 1.21615e+01 6.11646e+00 39 2022 8 1.71035e+01 5.94568e+00 130 2022 9 1.32125e+01 5.54571e+00 169 2022 10 8.81081e+00 4.84638e+00 405 2022 11 3.82566e+00 3.39808e+00 291 2022 12 5.76958e-01 1.35062e-01 16 2023 1 5.06091e-01 1.28326e+00 56 2023 2 4.14431e+00 5.63996e+00 248 2023 3 8.43463e+00 6.34448e+00 294 2023 4 2.08743e+00 2.69893e+00 432 2023 5 1.83502e+00 2.75563e+00 213 2023 6 2.95764e+00 3.38660e+00 101 2023 7 9.58575e+00 5.84677e+00 179 2023 8 1.32056e+01 8.64977e+00 395 2023 9 1.18416e+01 5.29433e+00 386 2023 10 8.90044e+00 4.02292e+00 142 2023 11 3.79367e+00 3.68804e+00 254 2023 12 1.25546e+01 4.95802e+00 87 2024 1 nan nan 0 2024 2 1.87840e+00 3.04135e+00 348 2024 3 3.88499e+00 4.38056e+00 308 2024 4 nan nan 0