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 4.97499e+00 9.47708e+00 36 2002 8 3.36088e+01 2.10342e+01 64 2002 9 3.00187e+01 1.81531e+01 64 2002 10 2.79132e+01 1.70498e+01 124 2002 11 1.16731e+01 8.73401e+00 205 2002 12 1.20209e+01 7.01176e+00 170 2003 1 5.62130e+00 3.53391e+00 209 2003 2 1.00507e+01 5.62321e+00 148 2003 3 nan nan 0 2003 4 8.94236e-05 2.13216e-04 18 2003 5 4.99483e+01 5.05044e-01 16 2003 6 7.47252e+01 1.28647e+01 29 2003 7 nan nan 0 2003 8 nan nan 0 2003 9 7.35493e+00 1.36719e+01 48 2003 10 8.40649e+00 1.16736e+01 185 2003 11 3.22939e+00 3.84260e+00 143 2003 12 1.22953e+01 8.32284e+00 179 2004 1 1.64674e+01 1.44396e+01 120 2004 2 5.03547e+00 3.73259e+00 80 2004 3 1.19938e+01 1.82423e+01 60 2004 4 1.84729e+01 1.00615e+01 94 2004 5 2.46645e+01 7.50950e+00 67 2004 6 3.56929e+01 7.48574e+00 80 2004 7 3.29620e+01 1.60044e+01 97 2004 8 3.46498e+01 2.43545e+01 48 2004 9 3.80229e+01 1.89798e+01 23 2004 10 1.96163e+01 1.84916e+00 16 2004 11 2.13528e+01 2.88340e+01 45 2004 12 1.59809e+00 2.18075e+00 60 2005 1 6.64561e+00 6.43410e+00 108 2005 2 4.21945e+00 4.53611e+00 112 2005 3 7.10451e+00 4.19910e+00 121 2005 4 nan nan 0 2005 5 2.38806e+01 1.98438e+01 25 2005 6 2.30862e+01 3.03396e+01 61 2005 7 8.24684e+00 7.55723e+00 45 2005 8 3.84639e-01 4.49606e-01 16 2005 9 1.15255e+01 1.07924e+01 64 2005 10 1.79665e+01 1.46817e+01 216 2005 11 1.56914e+01 6.57370e+00 236 2005 12 1.16033e+01 6.59707e+00 207 2006 1 1.05246e+01 7.97043e+00 170 2006 2 5.49424e+00 3.51253e+00 157 2006 3 7.05464e+00 8.42733e+00 207 2006 4 9.44117e+00 7.72332e+00 136 2006 5 2.89716e+01 1.07978e+01 138 2006 6 3.53927e+01 5.26686e+00 52 2006 7 3.67558e+00 2.81800e+00 17 2006 8 3.33751e+01 1.75556e+01 70 2006 9 1.82848e+01 1.34819e+01 116 2006 10 1.92339e+01 1.17542e+01 150 2006 11 2.34554e+01 9.02983e+00 253 2006 12 2.42995e+01 1.29317e+01 133 2007 1 1.99666e+01 1.42074e+01 90 2007 2 1.57427e+01 1.06272e+01 221 2007 3 2.06918e+01 1.58715e+01 177 2007 4 1.96813e+01 1.08411e+01 98 2007 5 1.37592e+01 8.48541e+00 55 2007 6 2.26755e+01 1.49446e+01 48 2007 7 2.51848e+01 1.35726e+01 47 2007 8 9.28531e+00 9.59052e+00 42 2007 9 3.19034e+01 1.51109e+01 124 2007 10 2.99452e+01 1.47841e+01 107 2007 11 1.90724e+01 1.10048e+01 243 2007 12 2.20251e+01 1.13674e+01 112 2008 1 1.80315e+01 1.24766e+01 174 2008 2 2.14437e+01 9.61487e+00 258 2008 3 1.63681e+01 8.55747e+00 203 2008 4 2.33406e+01 1.55948e+01 101 2008 5 1.75816e+01 1.48352e+01 111 2008 6 1.49006e+01 1.67012e+01 71 2008 7 3.70268e+01 2.14761e+01 32 2008 8 3.29840e+01 5.16237e+00 18 2008 9 4.34316e+00 5.21361e+00 39 2008 10 3.04616e+00 3.93928e+00 154 2008 11 1.14197e+01 6.14999e+00 195 2008 12 1.46091e+01 8.13501e+00 188 2009 1 1.12845e+01 8.56999e+00 175 2009 2 1.61587e+01 4.71148e+00 224 2009 3 2.17895e+01 7.91238e+00 147 2009 4 1.02032e+01 5.84221e+00 48 2009 5 2.36086e+01 0.00000e+00 1 2009 6 2.88533e+01 1.20505e+01 16 2009 7 2.61868e+01 1.59723e+01 64 2009 8 2.22414e+01 2.05784e+01 74 2009 9 2.64750e+01 1.51919e+01 92 2009 10 1.15970e+01 9.61534e+00 128 2009 11 1.46293e+01 7.12413e+00 104 2009 12 7.16332e+00 7.13104e+00 32 2010 1 3.05090e+00 2.79327e+00 132 2010 2 1.32470e+01 1.05818e+01 22 2010 3 3.64231e+00 6.16647e+00 92 2010 4 1.06154e-01 5.21595e-01 26 2010 5 1.94483e+01 2.29107e+01 45 2010 6 1.99077e+01 7.41784e+00 32 2010 7 1.79804e+01 1.56406e+01 44 2010 8 2.42442e+01 5.32291e+00 16 2010 9 1.48400e+01 9.87557e+00 103 2010 10 1.93267e+01 1.11433e+01 263 2010 11 2.50798e+01 1.14241e+01 282 2010 12 2.33404e+01 8.43965e+00 224 2011 1 3.05252e+01 7.92590e+00 176 2011 2 3.68704e+01 9.91427e+00 148 2011 3 1.81102e+01 9.17807e+00 169 2011 4 2.71682e+01 1.47373e+01 128 2011 5 2.74763e+01 1.40322e+01 88 2011 6 3.66983e+01 2.27987e+01 32 2011 7 3.46442e+01 2.65749e+01 75 2011 8 3.51757e+01 9.38509e+00 80 2011 9 2.34941e+01 1.04397e+01 128 2011 10 2.83987e+01 1.85258e+01 295 2011 11 2.69526e+01 1.06961e+01 212 2011 12 2.50973e+01 1.50436e+01 208 2012 1 2.90012e+01 7.58762e+00 260 2012 2 2.45806e+01 8.53688e+00 64 2012 3 1.93798e+01 1.11534e+01 193 2012 4 2.50415e+01 1.46830e+01 138 2012 5 2.92784e+01 1.83754e+01 89 2012 6 3.36239e+01 0.00000e+00 3 2012 7 2.87249e+01 0.00000e+00 2 2012 8 nan nan 0 2012 9 nan nan 0 2012 10 1.56450e+00 3.47032e-01 16 2012 11 1.53380e+01 9.06949e+00 216 2012 12 1.77706e+01 7.25498e+00 144 2013 1 1.77309e+01 1.22271e+01 112 2013 2 1.30438e+01 7.48446e+00 112 2013 3 1.38026e+01 8.55917e+00 87 2013 4 1.02430e+01 2.64348e+00 12 2013 5 6.05798e+00 2.25487e+00 13 2013 6 3.37990e+01 1.88379e+00 16 2013 7 nan nan 0 2013 8 nan nan 0 2013 9 0.00000e+00 0.00000e+00 8 2013 10 1.25842e+01 1.40582e+01 80 2013 11 6.66971e+00 3.69856e+00 113 2013 12 8.89216e+00 3.48817e+00 160 2014 1 1.07628e+01 4.69691e+00 73 2014 2 7.81306e+00 1.00604e+01 132 2014 3 1.16609e+01 1.51343e+01 114 2014 4 1.28488e-05 4.44181e-05 13 2014 5 nan nan 0 2014 6 5.08072e+01 1.20933e+01 20 2014 7 2.09589e+01 8.44835e+00 94 2014 8 3.09683e+01 1.13868e+01 124 2014 9 2.48750e+01 9.88014e+00 97 2014 10 1.69560e+01 8.05250e+00 302 2014 11 2.01159e+01 8.71709e+00 211 2014 12 2.33651e+01 1.18465e+01 204 2015 1 8.15847e+00 8.93708e+00 125 2015 2 4.96750e+00 6.63186e+00 85 2015 3 2.29298e+00 3.12037e+00 40 2015 4 6.31312e-03 8.12942e-03 20 2015 5 1.26299e+01 5.88796e+00 69 2015 6 2.18042e+01 6.26951e+00 95 2015 7 3.53012e+01 1.91568e+01 32 2015 8 3.06494e+01 6.60813e+00 81 2015 9 1.84198e+01 4.06917e+00 96 2015 10 2.64452e+01 1.26093e+01 162 2015 11 1.46090e+01 9.81881e+00 143 2015 12 8.46128e+00 6.03861e+00 100 2016 1 1.09717e+01 7.96979e+00 199 2016 2 5.52722e+00 3.30614e+00 286 2016 3 7.62855e+00 5.08973e+00 158 2016 4 4.00626e+00 4.28492e+00 41 2016 5 1.22226e+01 1.06822e+01 53 2016 6 2.76435e+01 1.53765e+01 92 2016 7 2.85552e+01 1.26844e+01 138 2016 8 1.66734e+01 1.91390e+01 87 2016 9 2.75336e+01 2.72196e+01 130 2016 10 1.12087e+01 7.92919e+00 144 2016 11 1.97731e+01 1.07326e+01 160 2016 12 1.77734e+01 1.25122e+01 175 2017 1 1.78300e+01 8.98492e+00 162 2017 2 6.71202e+00 4.08651e+00 186 2017 3 1.96727e+01 6.50941e+00 192 2017 4 1.45428e+01 8.86631e+00 122 2017 5 2.93429e+01 1.52159e+01 76 2017 6 nan nan 0 2017 7 3.52471e+01 1.69550e+01 48 2017 8 3.05522e+01 2.97555e+01 72 2017 9 1.34829e+01 4.33169e+00 69 2017 10 1.15576e+01 9.92670e+00 232 2017 11 1.99275e+01 1.01849e+01 259 2017 12 3.43302e+01 8.21285e+00 176 2018 1 1.98771e+01 9.05321e+00 240 2018 2 3.24947e+01 1.27502e+01 128 2018 3 1.61423e+01 9.35374e+00 157 2018 4 1.62983e+01 1.40424e+01 77 2018 5 2.02493e+01 7.78209e+00 74 2018 6 3.74005e+01 3.20147e+01 42 2018 7 nan nan 0 2018 8 5.82739e-01 8.54573e-01 14 2018 9 4.01652e+00 7.78407e+00 104 2018 10 4.01690e+00 4.50720e+00 282 2018 11 8.21295e+00 7.42851e+00 76 2018 12 2.56812e+00 2.21970e+00 48 2019 1 1.43773e-03 1.34573e-03 5 2019 2 7.08025e-01 9.04909e-01 9 2019 3 6.47034e+00 1.65261e+01 51 2019 4 2.57101e+00 1.62908e+00 49 2019 5 2.45084e+01 2.19994e+01 114 2019 6 3.29497e+01 2.63563e+01 55 2019 7 2.83399e+01 2.20193e+01 32 2019 8 2.09431e+01 1.43938e+01 48 2019 9 1.33120e+01 1.35734e+01 65 2019 10 5.15529e+00 4.40770e+00 74 2019 11 1.80104e+01 1.35680e+01 140 2019 12 8.35338e+00 9.14901e+00 80 2020 1 1.56318e+01 8.66831e+00 144 2020 2 1.26329e+01 1.02510e+01 161 2020 3 2.73264e+01 1.96814e+01 165 2020 4 8.25083e+00 3.19058e+00 38 2020 5 2.11639e+01 1.07394e+01 69 2020 6 3.33103e+01 1.33495e+01 30 2020 7 5.83983e+01 2.71721e+01 30 2020 8 1.30215e+00 9.05347e-01 10 2020 9 4.41933e+01 3.57116e+01 38 2020 10 1.63946e+00 2.04612e+00 40 2020 11 2.22667e+01 3.22383e+01 53 2020 12 8.52212e+00 8.17195e+00 130 2021 1 5.67292e+00 3.05657e+00 50 2021 2 3.07005e+00 4.17162e+00 42 2021 3 nan nan 0 2021 4 6.97251e+00 1.09901e+00 16 2021 5 8.92356e+00 7.11454e+00 26 2021 6 2.64397e+01 1.27517e+01 27 2021 7 nan nan 0 2021 8 1.10882e-01 1.46124e-01 16 2021 9 7.09604e+01 3.27370e+00 16 2021 10 8.78039e+00 2.39174e+00 16 2021 11 4.71735e+00 4.99382e+00 117 2021 12 2.34750e+01 2.46207e+01 113 2022 1 6.43631e+00 7.41151e+00 178 2022 2 2.19002e+01 1.21632e+01 144 2022 3 1.91578e+01 5.38589e+00 96 2022 4 nan nan 0 2022 5 3.95885e+01 1.55356e+01 19 2022 6 1.29379e+01 2.00174e+01 27 2022 7 2.64401e+01 2.51054e+01 49 2022 8 2.51706e+01 2.43060e+01 89 2022 9 1.91149e+01 1.59237e+01 29 2022 10 9.33774e+00 9.32561e+00 181 2022 11 1.12806e+01 1.17922e+01 90 2022 12 1.86273e+01 1.64463e+01 160 2023 1 1.84291e+01 6.72175e+00 208 2023 2 1.66610e+01 1.01758e+01 137 2023 3 nan nan 0 2023 4 nan nan 0 2023 5 2.54933e+01 1.33312e+01 48 2023 6 1.01092e+01 1.77159e+01 55 2023 7 1.68194e+01 1.30002e+01 16 2023 8 5.57351e+01 3.72247e+01 51 2023 9 nan nan 0 2023 10 1.38233e+01 2.13025e+01 63 2023 11 3.16966e+01 2.76758e+01 117 2023 12 2.37282e+00 8.30877e-01 16 2024 1 nan nan 0 2024 2 1.98225e+00 3.03989e+00 86 2024 3 6.81417e+00 9.24213e+00 68 2024 4 nan nan 0