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 4.09884e+00 2.95729e-01 27 2002 8 3.66849e+00 2.84261e-01 48 2002 9 3.08366e+00 7.04274e-01 126 2002 10 3.11059e+00 5.59385e-01 160 2002 11 2.90399e+00 5.51051e-01 219 2002 12 2.87618e+00 4.55341e-01 128 2003 1 2.12570e+00 8.46861e-01 205 2003 2 2.89745e+00 1.19015e+00 155 2003 3 nan nan 0 2003 4 1.75898e+00 3.48903e+00 96 2003 5 1.90400e+00 1.72040e+00 48 2003 6 3.18945e+00 3.73547e-01 64 2003 7 2.69145e+00 1.32721e+00 32 2003 8 1.47846e+00 8.75764e-01 25 2003 9 2.16133e+00 1.35137e+00 92 2003 10 3.25298e+00 8.29030e-01 229 2003 11 2.83379e+00 7.57414e-01 296 2003 12 3.32655e+00 1.11153e+00 180 2004 1 3.98837e+00 7.50296e-01 112 2004 2 3.07083e+00 3.45230e-01 50 2004 3 3.04042e+00 1.06800e+00 108 2004 4 3.82809e+00 5.08000e-01 107 2004 5 3.90357e+00 5.83591e-01 114 2004 6 3.48614e+00 2.68812e+00 64 2004 7 3.03396e+00 2.12277e-01 48 2004 8 3.64271e+00 8.37102e-01 69 2004 9 2.42094e+00 1.04269e+00 78 2004 10 6.11370e-01 5.93481e-01 56 2004 11 1.36147e+00 9.02578e-01 118 2004 12 1.80043e+00 6.84514e-01 106 2005 1 2.24254e+00 9.08567e-01 195 2005 2 3.05843e+00 6.13976e-01 96 2005 3 2.30381e+00 8.58137e-01 136 2005 4 6.85006e-01 6.86034e-01 48 2005 5 2.88014e+00 9.96230e-01 54 2005 6 2.62352e+00 4.97706e-01 48 2005 7 2.67520e+00 1.04363e+00 68 2005 8 1.58892e+00 1.05042e+00 74 2005 9 2.76531e+00 3.95594e-01 80 2005 10 2.74305e+00 4.29352e-01 268 2005 11 3.05986e+00 4.02738e-01 240 2005 12 3.03184e+00 3.91225e-01 224 2006 1 2.50699e+00 6.48284e-01 144 2006 2 2.47654e+00 4.62421e-01 167 2006 3 2.49226e+00 6.99496e-01 207 2006 4 3.57317e+00 6.15930e-01 152 2006 5 3.97305e+00 3.73159e-01 205 2006 6 4.06567e+00 8.01754e-01 100 2006 7 3.82286e+00 5.53257e-01 109 2006 8 3.81926e+00 4.84940e-01 104 2006 9 3.18869e+00 4.37456e-01 134 2006 10 3.29747e+00 7.46348e-01 251 2006 11 3.55136e+00 3.49701e-01 272 2006 12 3.81705e+00 3.47004e-01 148 2007 1 3.50828e+00 6.96040e-01 96 2007 2 2.61578e+00 9.14660e-01 160 2007 3 3.52873e+00 8.51871e-01 254 2007 4 3.72951e+00 6.21012e-01 176 2007 5 3.93838e+00 2.75587e-01 62 2007 6 3.81709e+00 4.51980e-01 55 2007 7 3.72675e+00 5.62353e-01 96 2007 8 3.31759e+00 1.60203e-01 96 2007 9 3.21612e+00 3.78718e-01 151 2007 10 3.45611e+00 3.00566e-01 112 2007 11 3.81887e+00 3.81907e-01 272 2007 12 4.04836e+00 6.24528e-01 153 2008 1 3.74703e+00 2.94936e-01 180 2008 2 3.64176e+00 5.84142e-01 263 2008 3 2.01896e+00 1.02565e+00 161 2008 4 3.37799e+00 5.96163e-01 117 2008 5 3.25615e+00 4.93475e-01 174 2008 6 3.93477e+00 3.05955e-01 112 2008 7 3.79517e+00 3.52210e-01 64 2008 8 2.67376e+00 3.17213e-01 32 2008 9 1.53226e+00 1.17033e+00 76 2008 10 2.31859e+00 4.29590e-01 243 2008 11 3.24722e+00 4.67814e-01 230 2008 12 2.78305e+00 8.33146e-01 176 2009 1 2.74789e+00 4.86852e-01 128 2009 2 3.66744e+00 5.71955e-01 181 2009 3 3.87481e+00 4.57670e-01 161 2009 4 4.16668e-01 1.19468e+00 48 2009 5 2.81223e+00 4.42603e-01 48 2009 6 3.93344e+00 5.98974e-01 72 2009 7 3.59280e+00 4.14591e-01 79 2009 8 3.43349e+00 2.54859e-01 96 2009 9 2.64679e+00 3.69092e+00 127 2009 10 2.77609e+00 6.39108e-01 188 2009 11 3.33194e+00 4.30777e-01 188 2009 12 2.19260e+00 1.04155e+00 35 2010 1 9.89763e-01 7.26174e-01 144 2010 2 7.46449e-01 7.65508e-01 114 2010 3 1.86217e+00 8.68498e-01 102 2010 4 1.89624e+00 5.53097e-01 133 2010 5 3.29263e+00 1.70060e+00 63 2010 6 3.42146e+00 5.51015e-01 157 2010 7 3.49177e+00 5.03256e-01 80 2010 8 3.16644e+00 4.48634e+00 31 2010 9 3.46776e+00 5.40027e-01 206 2010 10 3.49810e+00 5.18728e-01 350 2010 11 3.82199e+00 4.16621e-01 240 2010 12 3.70083e+00 6.22698e-01 269 2011 1 3.68420e+00 2.91383e-01 160 2011 2 3.72011e+00 5.58481e-01 142 2011 3 3.34963e+00 3.76724e-01 144 2011 4 3.49620e+00 3.78078e-01 160 2011 5 3.57899e+00 4.89427e-01 167 2011 6 3.84078e+00 3.60947e-01 96 2011 7 3.53010e+00 2.92938e-01 112 2011 8 3.70994e+00 4.34584e-01 144 2011 9 3.59003e+00 3.53021e-01 164 2011 10 3.37081e+00 4.12501e-01 336 2011 11 3.80863e+00 3.66409e-01 224 2011 12 4.01486e+00 3.07043e-01 240 2012 1 3.52590e+00 5.10664e-01 252 2012 2 3.55781e+00 5.62093e-01 64 2012 3 3.75856e+00 4.24104e-01 240 2012 4 3.82788e+00 3.95432e-01 246 2012 5 3.85853e+00 1.97466e-01 132 2012 6 3.85585e+00 6.86295e-02 16 2012 7 3.10718e+00 1.29662e+00 82 2012 8 2.40129e+00 3.96880e-01 16 2012 9 2.06042e+00 9.30328e-01 68 2012 10 1.80235e+00 6.95977e-01 216 2012 11 2.94157e+00 1.59618e+00 238 2012 12 3.81088e+00 3.29138e-01 150 2013 1 3.91755e+00 5.42999e-01 128 2013 2 3.80228e+00 8.55677e-01 112 2013 3 1.38330e+00 1.22737e+00 160 2013 4 1.74219e+00 1.48252e+00 64 2013 5 3.47290e+00 4.66025e-01 65 2013 6 3.60608e+00 9.07907e-01 98 2013 7 nan nan 0 2013 8 1.51303e+00 1.31632e+00 16 2013 9 1.53212e+00 5.83352e-01 147 2013 10 2.44096e+00 1.45752e+00 152 2013 11 2.77213e+00 3.87689e-01 96 2013 12 3.31455e+00 6.82789e-01 118 2014 1 2.32083e+00 8.19685e-01 78 2014 2 2.84746e+00 9.72679e-01 126 2014 3 2.62325e+00 6.58533e-01 85 2014 4 nan nan 0 2014 5 1.72805e+00 3.62520e-01 16 2014 6 3.37817e+00 1.71458e+00 18 2014 7 4.07342e+00 6.92310e-01 100 2014 8 4.02340e+00 5.08693e-01 144 2014 9 3.70030e+00 3.55270e-01 132 2014 10 3.55369e+00 5.77275e-01 334 2014 11 3.47263e+00 5.67103e-01 240 2014 12 3.44569e+00 5.91992e-01 190 2015 1 2.45032e+00 5.71439e-01 144 2015 2 2.30209e+00 8.69888e-01 132 2015 3 2.04453e+00 1.30221e+00 64 2015 4 2.67346e+00 4.57683e-01 32 2015 5 3.81325e+00 6.83178e-01 172 2015 6 3.72643e+00 5.56207e-01 81 2015 7 3.80845e+00 4.55378e-01 41 2015 8 3.81141e+00 3.07253e-01 79 2015 9 3.33612e+00 8.21782e-01 106 2015 10 3.36813e+00 3.57738e-01 224 2015 11 3.77295e+00 5.48693e-01 167 2015 12 3.83404e+00 4.84961e-01 96 2016 1 2.35035e+00 8.02622e-01 176 2016 2 1.56271e+00 7.58368e-01 272 2016 3 2.66587e+00 7.89698e-01 237 2016 4 1.32240e-01 5.20852e-01 16 2016 5 3.52617e+00 6.55624e-01 53 2016 6 3.95138e+00 5.59693e-01 128 2016 7 3.51615e+00 3.58093e-01 176 2016 8 2.45313e+00 1.67931e+00 155 2016 9 2.15707e+00 4.79582e+00 228 2016 10 2.91864e+00 7.77580e-01 251 2016 11 3.70242e+00 3.43817e-01 200 2016 12 3.98442e+00 3.83340e-01 176 2017 1 3.82023e+00 9.13123e-01 157 2017 2 2.40601e+00 8.58748e-01 226 2017 3 3.50734e+00 5.84897e-01 177 2017 4 3.50405e+00 5.61325e-01 144 2017 5 3.44814e+00 5.57641e-01 112 2017 6 4.29199e+00 0.00000e+00 7 2017 7 2.87285e+00 2.02053e+00 60 2017 8 3.05248e+00 4.93319e-01 80 2017 9 3.17547e+00 9.35775e-01 193 2017 10 2.95050e+00 4.51818e-01 274 2017 11 3.91980e+00 6.52595e-01 279 2017 12 3.98047e+00 3.65160e-01 178 2018 1 3.86802e+00 3.14725e-01 247 2018 2 3.79622e+00 2.42415e-01 126 2018 3 3.11271e+00 2.94563e-01 112 2018 4 3.64494e+00 3.54674e-01 123 2018 5 3.33334e+00 7.97311e-01 73 2018 6 2.69326e+00 9.89398e-01 80 2018 7 3.94074e+00 1.20432e+00 67 2018 8 1.66048e+00 1.25206e+00 48 2018 9 2.48061e+00 1.01806e+00 169 2018 10 2.17703e+00 7.05729e-01 352 2018 11 2.37202e+00 5.06799e-01 98 2018 12 1.36491e+00 1.17340e+00 80 2019 1 8.18699e-01 5.67883e-01 74 2019 2 2.71325e+00 4.38589e-01 16 2019 3 2.12812e+00 1.46735e+00 127 2019 4 2.16352e+00 4.70736e-01 80 2019 5 3.98194e+00 8.03385e-01 193 2019 6 3.97311e+00 4.86605e-01 32 2019 7 4.32599e+00 9.57215e-01 96 2019 8 4.20314e+00 8.59251e-01 141 2019 9 3.72447e+00 7.14955e-01 219 2019 10 3.33091e+00 5.32492e-01 166 2019 11 3.68532e+00 3.07212e-01 116 2019 12 3.54629e+00 6.17761e-01 94 2020 1 3.61763e+00 1.88813e+00 121 2020 2 3.69829e+00 4.68618e-01 176 2020 3 3.44563e+00 4.47297e-01 80 2020 4 3.25132e+00 1.05073e+00 73 2020 5 3.75895e+00 2.66151e-01 112 2020 6 1.76884e+00 6.71907e-01 16 2020 7 3.72524e+00 4.12216e-01 54 2020 8 3.46164e+00 7.90611e-01 80 2020 9 1.87294e+00 1.40310e+00 53 2020 10 2.25553e+00 7.26125e-01 152 2020 11 3.11090e+00 1.05112e+00 112 2020 12 3.31941e+00 3.46207e-01 128 2021 1 1.95971e+00 8.65015e-01 64 2021 2 1.76446e+00 6.20961e-01 107 2021 3 2.29384e+00 8.51758e-01 88 2021 4 3.52822e+00 9.14478e-01 86 2021 5 3.79385e+00 5.87103e-01 77 2021 6 3.58897e+00 4.81861e-01 45 2021 7 3.55646e+00 4.29367e-01 28 2021 8 1.64436e+00 6.34815e-01 64 2021 9 1.39482e+00 9.93723e-01 127 2021 10 2.21826e+00 1.66552e+00 55 2021 11 2.33410e+00 4.68159e-01 101 2021 12 3.83396e+00 1.16091e+00 72 2022 1 2.55600e+00 9.84429e-01 173 2022 2 3.44891e+00 4.84265e-01 128 2022 3 2.29819e+00 1.07596e+00 186 2022 4 8.09016e-01 4.95041e-01 16 2022 5 2.81166e+00 6.50901e-01 48 2022 6 4.07972e+00 7.56052e-01 114 2022 7 4.32003e+00 5.77802e-01 92 2022 8 4.44975e+00 1.11973e+00 96 2022 9 3.08435e+00 7.45100e-01 78 2022 10 3.03049e+00 6.43726e-01 300 2022 11 3.72653e+00 4.32522e-01 132 2022 12 3.76639e+00 5.96825e-01 224 2023 1 3.73275e+00 4.36338e-01 224 2023 2 2.96724e+00 4.02548e-01 160 2023 3 2.57705e+00 6.62628e-01 144 2023 4 3.85554e+00 3.84006e-01 48 2023 5 4.21583e+00 6.81219e-01 101 2023 6 3.33668e+00 6.75461e-01 63 2023 7 3.55831e+00 3.43678e-01 48 2023 8 3.69859e+00 1.31466e+00 128 2023 9 1.80928e+00 1.99267e+00 92 2023 10 3.15971e+00 8.19431e-01 218 2023 11 3.48432e+00 7.22877e-01 183 2023 12 1.57013e+00 5.90148e-01 7 2024 1 6.30849e-01 1.02351e+00 10 2024 2 2.28157e+00 6.03328e-01 95 2024 3 2.72774e+00 4.51051e-01 95 2024 4 nan nan 0