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 1.40312e+00 1.09937e+00 32 2002 8 1.90812e+00 7.40370e-01 112 2002 9 1.84942e+00 7.44890e-01 108 2002 10 1.69088e+00 1.03906e+00 140 2002 11 3.24842e+00 1.41346e+00 216 2002 12 3.74030e+00 1.52293e+00 192 2003 1 5.82210e+00 1.34761e+00 242 2003 2 4.20726e+00 8.58316e-01 170 2003 3 4.99568e+00 1.21170e+00 45 2003 4 9.17937e+00 1.84773e+00 40 2003 5 2.81978e+00 2.76071e+00 32 2003 6 5.23436e+00 1.11861e+00 34 2003 7 4.70398e+00 9.38414e-02 16 2003 8 5.08336e+00 9.62075e-01 35 2003 9 2.80499e+00 2.19132e+00 105 2003 10 2.15061e+00 1.51424e+00 222 2003 11 3.49562e+00 2.38253e+00 243 2003 12 5.22645e+00 1.73918e+00 256 2004 1 4.30150e+00 8.37057e-01 128 2004 2 3.68608e+00 1.31705e+00 80 2004 3 2.00976e+00 6.76732e-01 99 2004 4 2.82411e+00 1.58115e+00 106 2004 5 1.41255e+00 1.09591e+00 104 2004 6 2.49792e+00 5.66025e-01 66 2004 7 1.41550e+00 1.14107e+00 76 2004 8 1.55174e+00 1.39534e+00 126 2004 9 5.27966e+00 1.36324e+00 60 2004 10 7.70691e+00 1.34647e+00 92 2004 11 7.42562e+00 1.32879e+00 154 2004 12 8.25689e+00 1.26224e+00 115 2005 1 5.67108e+00 1.94834e+00 188 2005 2 3.33490e+00 1.39743e+00 125 2005 3 5.69962e+00 1.10742e+00 162 2005 4 6.64513e+00 3.31090e+00 56 2005 5 nan nan 0 2005 6 4.31260e+00 1.58527e+00 67 2005 7 4.83447e+00 6.48662e-01 65 2005 8 6.23973e+00 2.43356e+00 52 2005 9 2.06221e+00 1.47433e+00 50 2005 10 2.61727e+00 1.63388e+00 252 2005 11 2.94084e+00 9.51094e-01 305 2005 12 4.92495e+00 1.48627e+00 237 2006 1 4.67163e+00 1.61006e+00 230 2006 2 6.13010e+00 1.51633e+00 160 2006 3 3.71185e+00 9.82885e-01 246 2006 4 2.06916e+00 1.44055e+00 110 2006 5 2.09438e+00 8.35526e-01 128 2006 6 1.38284e+00 3.34271e-01 96 2006 7 1.26243e+00 8.68976e-01 69 2006 8 1.72392e+00 7.76096e-01 80 2006 9 2.04030e+00 1.05923e+00 128 2006 10 2.66270e+00 2.19366e+00 208 2006 11 3.61198e+00 1.22924e+00 236 2006 12 1.55666e+00 4.49613e-01 120 2007 1 2.34267e+00 1.43359e+00 144 2007 2 2.81015e+00 1.19266e+00 243 2007 3 1.25137e+00 1.01481e+00 254 2007 4 1.92256e+00 1.38201e+00 186 2007 5 1.25003e+00 8.27584e-02 26 2007 6 1.88328e+00 4.05383e-01 32 2007 7 1.87852e+00 4.46178e-01 92 2007 8 2.00382e+00 2.81311e-01 79 2007 9 1.73731e+00 4.33550e-01 147 2007 10 1.40592e+00 8.06709e-01 162 2007 11 1.42903e+00 1.03725e+00 288 2007 12 2.58766e+00 2.77354e+00 142 2008 1 3.86150e+00 2.29614e+00 208 2008 2 2.24524e+00 1.34569e+00 260 2008 3 3.21758e+00 1.99052e+00 237 2008 4 1.35435e+00 1.31601e+00 157 2008 5 1.70725e+00 1.27803e+00 184 2008 6 1.15640e+00 1.03302e+00 68 2008 7 1.15207e+00 6.68629e-01 80 2008 8 1.76602e+00 3.55660e-01 32 2008 9 2.40584e+00 1.13139e+00 144 2008 10 2.01437e+00 1.21788e+00 223 2008 11 3.34819e+00 1.57884e+00 219 2008 12 4.93044e+00 1.94462e+00 176 2009 1 4.05043e+00 1.31083e+00 187 2009 2 3.52830e+00 9.32101e-01 240 2009 3 2.20400e+00 1.27226e+00 176 2009 4 3.30729e+00 1.59481e+00 155 2009 5 3.12228e+00 1.38555e+00 32 2009 6 1.22667e+00 1.72999e+00 93 2009 7 3.81330e-01 1.70103e+00 52 2009 8 2.69164e-01 2.28958e+00 110 2009 9 1.04373e+00 1.36673e+00 165 2009 10 2.28174e+00 1.09831e+00 196 2009 11 1.37873e+00 1.03432e+00 141 2009 12 4.96086e+00 9.58621e-01 48 2010 1 7.43500e+00 1.18369e+00 172 2010 2 9.04439e+00 1.62691e+00 98 2010 3 8.26354e+00 1.52019e+00 139 2010 4 4.15412e+00 1.50816e+00 64 2010 5 3.99535e+00 1.71713e+00 34 2010 6 6.60588e-01 1.88723e+00 109 2010 7 4.10084e-01 1.85236e+00 80 2010 8 1.58215e+00 1.61956e+00 49 2010 9 1.34156e+00 1.25426e+00 141 2010 10 1.90900e+00 1.48337e+00 226 2010 11 2.15677e+00 8.15657e-01 215 2010 12 3.34162e+00 1.61004e+00 261 2011 1 3.44268e+00 1.15280e+00 170 2011 2 2.59221e+00 5.51504e-01 176 2011 3 2.58530e+00 9.93957e-01 176 2011 4 2.97692e+00 8.57956e-01 139 2011 5 4.20440e-01 8.23106e-01 125 2011 6 -4.44979e-01 1.19969e+00 71 2011 7 9.56930e-01 8.70066e-01 52 2011 8 5.66062e-01 7.33381e-01 96 2011 9 1.19583e+00 7.80429e-01 160 2011 10 1.89480e+00 1.87461e+00 249 2011 11 2.12315e+00 1.53844e+00 240 2011 12 2.13363e+00 1.14901e+00 264 2012 1 3.64813e+00 1.70440e+00 272 2012 2 4.26041e+00 9.06815e-01 48 2012 3 1.42582e+00 1.63232e+00 202 2012 4 8.01753e-01 8.60321e-01 186 2012 5 1.30373e-01 8.52112e-01 108 2012 6 1.33658e+00 3.01058e-02 16 2012 7 7.21878e-01 8.11072e-01 32 2012 8 nan nan 0 2012 9 5.49319e+00 1.45652e+00 94 2012 10 4.41706e+00 1.86270e+00 167 2012 11 4.21725e+00 2.25188e+00 177 2012 12 3.59855e+00 2.07022e+00 128 2013 1 2.22353e+00 1.90611e+00 176 2013 2 2.61214e+00 8.81750e-01 143 2013 3 3.75510e+00 1.08096e+00 140 2013 4 1.89876e+00 1.28562e+00 90 2013 5 -2.33590e-01 1.32170e+00 51 2013 6 -9.08455e-01 2.26775e+00 82 2013 7 1.09697e+00 1.39994e-01 3 2013 8 8.20112e+00 9.11624e-01 35 2013 9 4.41428e+00 2.48730e+00 99 2013 10 3.56682e+00 1.72099e+00 145 2013 11 2.79460e+00 1.11460e+00 151 2013 12 2.83137e+00 9.70622e-01 160 2014 1 5.13746e+00 1.71557e+00 128 2014 2 5.02696e+00 1.70347e+00 128 2014 3 4.75816e+00 9.52352e-01 136 2014 4 5.49171e+00 2.33736e+00 32 2014 5 nan nan 0 2014 6 1.83290e+00 9.18184e-01 18 2014 7 3.00243e+00 1.69738e+00 77 2014 8 1.40448e+00 3.72224e-01 87 2014 9 1.82637e+00 1.25594e+00 90 2014 10 2.49276e+00 1.34548e+00 310 2014 11 3.79782e+00 1.73893e+00 243 2014 12 2.36347e+00 8.41160e-01 192 2015 1 3.83969e+00 2.64423e+00 209 2015 2 6.25567e+00 1.59341e+00 192 2015 3 3.26124e+00 1.14474e+00 98 2015 4 4.98527e+00 7.04239e-01 23 2015 5 1.62322e+00 1.74753e+00 59 2015 6 1.31336e+00 1.07899e+00 115 2015 7 1.49452e+00 3.28985e-01 21 2015 8 2.92863e+00 1.07386e+00 63 2015 9 1.88521e+00 1.88246e+00 128 2015 10 2.21444e+00 9.22081e-01 131 2015 11 1.66144e+00 9.32976e-01 191 2015 12 1.44123e+00 1.42405e+00 144 2016 1 5.04996e+00 1.65732e+00 208 2016 2 5.08949e+00 1.67125e+00 320 2016 3 4.43611e+00 8.75657e-01 176 2016 4 3.12018e+00 1.90669e+00 142 2016 5 3.16580e+00 4.44328e-01 41 2016 6 5.53235e-01 1.26598e+00 95 2016 7 1.82358e+00 1.02643e+00 132 2016 8 2.53876e+00 8.72186e-01 176 2016 9 3.70089e+00 1.07656e+00 182 2016 10 3.08538e+00 2.05069e+00 133 2016 11 1.02781e+00 1.05105e+00 163 2016 12 1.89774e+00 1.02189e+00 196 2017 1 3.56591e+00 1.62369e+00 179 2017 2 3.60041e+00 1.16003e+00 274 2017 3 2.08997e+00 9.35347e-01 224 2017 4 1.59849e+00 1.66997e+00 168 2017 5 1.41351e+00 1.69043e+00 93 2017 6 -4.58238e-02 5.40987e-01 58 2017 7 9.63572e-01 1.62008e+00 69 2017 8 1.56963e+00 2.05453e+00 112 2017 9 1.71924e+00 6.74153e-01 104 2017 10 2.70729e+00 1.07219e+00 204 2017 11 9.95042e-01 1.23523e+00 244 2017 12 2.32322e+00 1.83762e+00 163 2018 1 2.93221e+00 1.36947e+00 223 2018 2 1.86923e+00 4.48160e-01 105 2018 3 2.11734e+00 1.38872e+00 198 2018 4 9.91235e-01 6.38416e-01 140 2018 5 1.43422e+00 1.42315e+00 99 2018 6 2.51596e+00 1.50563e+00 64 2018 7 1.09527e+00 2.51529e+00 72 2018 8 4.32473e+00 2.73898e+00 88 2018 9 4.31379e+00 1.36902e+00 120 2018 10 4.22335e+00 2.16212e+00 258 2018 11 6.82947e+00 1.45136e+00 64 2018 12 6.82362e+00 1.70358e+00 112 2019 1 9.30689e+00 1.59295e+00 101 2019 2 4.52604e+00 5.22569e-01 42 2019 3 5.02197e+00 1.15698e+00 108 2019 4 3.34385e+00 5.06907e-01 112 2019 5 1.87757e+00 1.38429e+00 135 2019 6 1.99059e+00 6.21599e-01 62 2019 7 -2.04435e-01 9.94901e-01 93 2019 8 -1.45996e+00 8.72085e-01 42 2019 9 2.29875e+00 1.23181e+00 63 2019 10 1.69847e+00 1.05101e+00 116 2019 11 1.50735e+00 1.33373e+00 166 2019 12 3.87235e+00 1.76297e+00 121 2020 1 2.67113e+00 5.95392e-01 160 2020 2 3.16636e+00 1.78189e+00 148 2020 3 1.58381e+00 6.26501e-01 144 2020 4 2.80540e+00 8.20284e-01 93 2020 5 6.03741e-01 1.30972e+00 106 2020 6 1.37885e+00 2.00992e+00 101 2020 7 2.06960e+00 1.06263e+00 39 2020 8 1.07115e+00 1.52519e+00 37 2020 9 3.45852e+00 8.47439e-01 64 2020 10 2.63704e+00 1.17975e+00 111 2020 11 2.28352e+00 1.25550e+00 164 2020 12 4.12288e+00 9.87294e-01 175 2021 1 4.94042e+00 1.46421e+00 97 2021 2 3.62340e+00 1.23704e+00 95 2021 3 3.14557e+00 1.31470e+00 80 2021 4 2.04668e+00 9.46778e-01 84 2021 5 -1.31981e-01 1.64024e+00 120 2021 6 6.14025e-01 2.81296e-01 38 2021 7 -4.33468e-01 1.05935e-01 9 2021 8 9.21901e+00 1.33554e+00 22 2021 9 6.59266e+00 1.25384e+00 108 2021 10 5.48917e+00 1.45045e+00 122 2021 11 4.38203e+00 1.23909e+00 80 2021 12 2.37446e+00 5.75187e-01 100 2022 1 4.89477e+00 1.57170e+00 222 2022 2 2.02116e+00 1.07364e+00 150 2022 3 3.02567e+00 2.35156e+00 171 2022 4 1.84137e+00 1.63794e-01 22 2022 5 6.07338e-01 2.09431e+00 101 2022 6 -2.58207e-01 1.44588e+00 97 2022 7 -1.09677e+00 1.46453e+00 56 2022 8 -7.91487e-01 1.37640e+00 126 2022 9 1.02322e+00 1.29176e+00 107 2022 10 1.12558e+00 1.72245e+00 106 2022 11 1.18627e+00 7.67347e-01 87 2022 12 2.00411e+00 1.46604e+00 183 2023 1 2.66521e+00 1.20374e+00 197 2023 2 2.17626e+00 7.30285e-01 160 2023 3 2.81727e+00 9.40358e-01 158 2023 4 4.61262e-01 6.06965e-01 64 2023 5 5.18545e-01 2.48042e+00 87 2023 6 6.74958e-01 1.54530e+00 56 2023 7 4.41317e-01 2.09260e-01 16 2023 8 2.07950e+00 2.14901e+00 67 2023 9 2.68835e+00 9.09882e-01 84 2023 10 3.40431e+00 1.98898e+00 120 2023 11 3.27969e+00 1.75140e+00 131 2023 12 7.80042e+00 1.76145e+00 64 2024 1 7.55929e+00 8.37093e-01 67 2024 2 7.65413e+00 1.10265e+00 96 2024 3 2.98712e+00 2.44391e+00 95 2024 4 nan nan 0