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 1.40990e+00 2.54450e-01 19 2002 8 2.02242e+00 9.93492e-01 35 2002 9 1.35521e+00 7.28324e-01 34 2002 10 1.36243e+00 7.72935e-01 67 2002 11 2.61380e+00 1.37081e+00 132 2002 12 2.14725e+00 1.17992e+00 114 2003 1 2.59890e+00 1.69551e+00 178 2003 2 2.34256e+00 1.73657e+00 102 2003 3 1.73054e+00 1.12806e+00 33 2003 4 2.17460e+00 1.15546e+00 145 2003 5 1.89235e+00 1.11943e+00 46 2003 6 1.74673e+00 8.82193e-01 32 2003 7 1.29812e+00 6.82759e-01 32 2003 8 2.39453e+00 0.00000e+00 2 2003 9 1.28506e+00 9.58228e-01 84 2003 10 1.73005e+00 1.32736e+00 128 2003 11 1.83073e+00 1.04114e+00 155 2003 12 2.05191e+00 1.20443e+00 103 2004 1 3.02371e+00 2.12644e+00 96 2004 2 2.89244e+00 1.71381e+00 32 2004 3 2.51613e+00 1.51627e+00 64 2004 4 2.89278e+00 1.69170e+00 76 2004 5 2.10340e+00 1.38480e+00 58 2004 6 nan nan 0 2004 7 2.13880e+00 1.19544e+00 32 2004 8 2.06692e+00 1.34559e+00 68 2004 9 1.32707e+00 6.50464e-01 7 2004 10 1.94169e+00 1.18667e+00 80 2004 11 2.22562e+00 1.15698e+00 78 2004 12 2.14585e+00 1.07038e+00 57 2005 1 2.68609e+00 1.54191e+00 120 2005 2 2.70811e+00 1.31272e+00 80 2005 3 2.55460e+00 1.30117e+00 121 2005 4 1.82666e+00 1.00702e+00 58 2005 5 1.97743e+00 1.33983e+00 76 2005 6 2.30235e+00 1.48748e+00 48 2005 7 1.44687e+00 7.36141e-01 15 2005 8 1.29503e+00 8.08502e-01 20 2005 9 1.44284e+00 1.02560e+00 55 2005 10 1.73312e+00 1.40318e+00 100 2005 11 2.13266e+00 1.08583e+00 84 2005 12 2.63512e+00 1.61066e+00 85 2006 1 2.43748e+00 1.25917e+00 96 2006 2 2.91366e+00 1.34980e+00 109 2006 3 2.68941e+00 1.58979e+00 129 2006 4 2.39358e+00 1.47929e+00 74 2006 5 2.35933e+00 1.44376e+00 71 2006 6 2.10965e+00 1.33836e+00 54 2006 7 2.15910e+00 1.40184e+00 16 2006 8 2.12303e+00 1.36287e+00 48 2006 9 1.91050e+00 1.41913e+00 84 2006 10 2.22561e+00 1.55956e+00 125 2006 11 2.18178e+00 1.46278e+00 141 2006 12 2.18804e+00 1.51583e+00 96 2007 1 2.27688e+00 1.27163e+00 82 2007 2 2.28459e+00 1.31878e+00 105 2007 3 2.80250e+00 1.90157e+00 121 2007 4 2.33988e+00 1.38617e+00 104 2007 5 2.31764e+00 1.62864e+00 41 2007 6 2.13081e+00 1.32061e+00 16 2007 7 1.86370e+00 1.06565e+00 32 2007 8 1.93015e+00 9.81695e-01 72 2007 9 1.87423e+00 1.09930e+00 54 2007 10 2.00947e+00 1.39671e+00 82 2007 11 2.40852e+00 1.61137e+00 176 2007 12 2.09767e+00 1.20914e+00 46 2008 1 2.56255e+00 1.37330e+00 108 2008 2 2.72831e+00 1.65959e+00 170 2008 3 2.44108e+00 1.51054e+00 116 2008 4 2.31237e+00 1.49725e+00 76 2008 5 2.41099e+00 1.65573e+00 48 2008 6 2.13768e+00 1.39164e+00 30 2008 7 nan nan 0 2008 8 nan nan 0 2008 9 2.09365e+00 1.03036e+00 75 2008 10 2.29093e+00 1.11032e+00 149 2008 11 2.40966e+00 1.40841e+00 175 2008 12 2.11816e+00 1.55777e+00 130 2009 1 2.33628e+00 1.47567e+00 112 2009 2 2.59192e+00 1.47609e+00 135 2009 3 2.57850e+00 1.46675e+00 77 2009 4 2.17811e+00 1.03595e+00 35 2009 5 1.48757e+00 6.82210e-01 28 2009 6 2.11108e+00 1.22270e+00 38 2009 7 4.56581e-01 0.00000e+00 1 2009 8 2.00805e+00 1.12024e+00 47 2009 9 1.67453e+00 7.96767e-01 46 2009 10 1.75083e+00 8.49509e-01 108 2009 11 1.68704e+00 8.50184e-01 83 2009 12 1.77805e+00 6.47252e-01 42 2010 1 2.39577e+00 9.73722e-01 123 2010 2 2.68139e+00 1.01247e+00 101 2010 3 2.46124e+00 1.16114e+00 125 2010 4 2.23093e+00 1.15065e+00 114 2010 5 2.37857e+00 1.51292e+00 51 2010 6 1.55133e+00 1.05249e+00 64 2010 7 1.86744e+00 8.35280e-01 42 2010 8 2.27734e+00 9.17226e-01 16 2010 9 1.68026e+00 1.12619e+00 124 2010 10 2.00340e+00 1.32448e+00 192 2010 11 2.01923e+00 1.43142e+00 185 2010 12 2.81263e+00 1.54899e+00 168 2011 1 2.63751e+00 1.55398e+00 126 2011 2 2.52912e+00 1.37181e+00 151 2011 3 2.50485e+00 1.46891e+00 126 2011 4 2.48628e+00 1.69347e+00 83 2011 5 1.99565e+00 1.18930e+00 127 2011 6 2.04682e+00 8.27260e-01 39 2011 7 2.37678e+00 1.11540e+00 32 2011 8 1.65772e+00 8.48275e-01 75 2011 9 1.87826e+00 1.10706e+00 101 2011 10 2.29462e+00 1.32486e+00 163 2011 11 2.35416e+00 1.23442e+00 173 2011 12 2.30682e+00 1.39400e+00 143 2012 1 2.63029e+00 1.41083e+00 182 2012 2 2.25781e+00 1.41354e+00 16 2012 3 2.51167e+00 1.54315e+00 149 2012 4 1.99704e+00 1.33364e+00 78 2012 5 1.83653e+00 1.21479e+00 74 2012 6 1.71337e+00 1.06768e+00 23 2012 7 2.07183e+00 9.95651e-01 27 2012 8 1.35595e+00 9.75666e-01 16 2012 9 1.64254e+00 8.50875e-01 46 2012 10 2.16861e+00 1.29516e+00 97 2012 11 1.81312e+00 1.04748e+00 130 2012 12 2.57278e+00 1.15669e+00 75 2013 1 2.67787e+00 1.18474e+00 97 2013 2 2.21705e+00 1.01985e+00 59 2013 3 2.38116e+00 9.76040e-01 93 2013 4 2.69561e+00 1.44916e+00 51 2013 5 2.14940e+00 1.17115e+00 37 2013 6 1.94478e+00 1.26243e+00 48 2013 7 nan nan 0 2013 8 1.28081e+00 1.01761e+00 64 2013 9 1.38430e+00 9.00440e-01 61 2013 10 1.94337e+00 9.94737e-01 116 2013 11 1.67745e+00 1.17276e+00 90 2013 12 1.92485e+00 1.14866e+00 101 2014 1 2.17351e+00 1.05738e+00 67 2014 2 2.45829e+00 1.32358e+00 128 2014 3 2.30712e+00 1.42494e+00 65 2014 4 2.06946e+00 1.28442e+00 76 2014 5 1.70810e+00 9.61834e-01 53 2014 6 1.54127e+00 1.11743e+00 49 2014 7 2.21910e+00 1.36442e+00 48 2014 8 2.12445e+00 1.25724e+00 48 2014 9 2.12198e+00 1.06111e+00 53 2014 10 2.01618e+00 8.72855e-01 198 2014 11 2.40392e+00 1.39377e+00 164 2014 12 2.02623e+00 1.47504e+00 124 2015 1 2.14424e+00 1.09080e+00 131 2015 2 2.08824e+00 1.18356e+00 138 2015 3 2.34691e+00 1.40359e+00 81 2015 4 2.16173e+00 1.13072e+00 64 2015 5 2.12126e+00 9.22353e-01 86 2015 6 1.74136e+00 7.42161e-01 22 2015 7 1.61160e+00 8.01870e-01 16 2015 8 1.66728e+00 1.00511e+00 27 2015 9 1.86455e+00 9.22743e-01 52 2015 10 1.70765e+00 9.56793e-01 127 2015 11 1.34855e+00 8.50427e-01 162 2015 12 1.28555e+00 8.42643e-01 73 2016 1 1.85430e+00 9.03391e-01 124 2016 2 2.23253e+00 1.14336e+00 194 2016 3 2.50411e+00 1.49174e+00 83 2016 4 1.96117e+00 8.95722e-01 63 2016 5 1.92233e+00 1.23815e+00 75 2016 6 2.39905e+00 1.73995e+00 87 2016 7 2.19733e+00 1.37262e+00 72 2016 8 1.52841e+00 8.51722e-01 31 2016 9 1.82789e+00 1.03384e+00 46 2016 10 2.05852e+00 9.19807e-01 115 2016 11 1.98077e+00 7.42078e-01 147 2016 12 1.93780e+00 1.07672e+00 165 2017 1 2.62954e+00 1.21631e+00 115 2017 2 2.47875e+00 1.41904e+00 144 2017 3 2.31527e+00 1.40176e+00 108 2017 4 2.68554e+00 1.50590e+00 96 2017 5 2.20572e+00 1.29079e+00 70 2017 6 2.22004e+00 1.28174e+00 28 2017 7 1.16298e+00 6.59846e-01 20 2017 8 1.64980e+00 1.22964e+00 30 2017 9 1.89638e+00 1.25613e+00 48 2017 10 2.06397e+00 7.77628e-01 88 2017 11 2.02088e+00 9.87809e-01 199 2017 12 2.26184e+00 1.21913e+00 64 2018 1 2.74950e+00 1.61786e+00 135 2018 2 2.63140e+00 1.69166e+00 94 2018 3 2.71898e+00 1.38082e+00 137 2018 4 2.69877e+00 1.37604e+00 124 2018 5 2.43525e+00 1.48969e+00 55 2018 6 1.98175e+00 1.23933e+00 50 2018 7 2.19282e+00 1.29156e+00 35 2018 8 nan nan 0 2018 9 1.27717e+00 8.76087e-01 63 2018 10 1.88474e+00 8.35595e-01 156 2018 11 1.75742e+00 1.02195e+00 83 2018 12 2.08910e+00 8.50775e-01 112 2019 1 1.83281e+00 9.16489e-01 141 2019 2 2.20168e+00 1.01226e+00 48 2019 3 1.91899e+00 9.66117e-01 90 2019 4 2.66676e+00 9.71459e-01 69 2019 5 2.08313e+00 1.20613e+00 65 2019 6 1.62702e+00 1.08788e+00 48 2019 7 1.69931e+00 9.96533e-01 16 2019 8 1.33182e+00 5.16421e-01 45 2019 9 1.82502e+00 8.67568e-01 106 2019 10 1.81245e+00 8.01959e-01 107 2019 11 1.98802e+00 1.22806e+00 119 2019 12 1.80889e+00 6.36828e-01 13 2020 1 2.26562e+00 1.40574e+00 64 2020 2 3.07859e+00 1.17476e+00 117 2020 3 2.41094e+00 1.18214e+00 65 2020 4 2.01840e+00 1.16091e+00 101 2020 5 2.21780e+00 1.23689e+00 84 2020 6 1.93804e+00 1.07694e+00 16 2020 7 1.51401e+00 9.19764e-01 23 2020 8 1.75467e+00 9.74575e-01 34 2020 9 1.27482e+00 1.93483e-01 20 2020 10 1.36232e+00 5.54025e-01 78 2020 11 1.86296e+00 7.46268e-01 154 2020 12 2.35094e+00 1.09254e+00 166 2021 1 2.24771e+00 1.00625e+00 89 2021 2 2.63633e+00 1.32024e+00 83 2021 3 2.22224e+00 1.35948e+00 71 2021 4 2.14196e+00 1.14626e+00 116 2021 5 2.49569e+00 1.41092e+00 75 2021 6 nan nan 0 2021 7 1.56866e+00 5.94499e-01 42 2021 8 1.59354e+00 1.03802e+00 39 2021 9 1.20246e+00 4.45117e-01 36 2021 10 1.17707e+00 6.96886e-01 70 2021 11 1.57058e+00 1.01139e+00 183 2021 12 1.81037e+00 1.06527e+00 103 2022 1 2.30901e+00 1.14742e+00 175 2022 2 2.32233e+00 1.20149e+00 99 2022 3 2.39946e+00 1.10229e+00 156 2022 4 1.87795e+00 9.47300e-01 32 2022 5 1.80775e+00 1.09603e+00 48 2022 6 1.88330e+00 8.23855e-01 51 2022 7 1.73692e+00 6.65134e-01 52 2022 8 1.42090e+00 7.23251e-01 64 2022 9 1.65390e+00 8.61647e-01 70 2022 10 1.71917e+00 9.75224e-01 255 2022 11 2.11382e+00 1.22766e+00 79 2022 12 1.93736e+00 1.13609e+00 146 2023 1 2.30238e+00 1.23721e+00 214 2023 2 2.32427e+00 1.25310e+00 167 2023 3 1.40731e+00 1.21118e+00 121 2023 4 2.09605e+00 1.11672e+00 76 2023 5 3.35259e+00 2.04687e+00 44 2023 6 1.73793e+00 1.08312e+00 20 2023 7 1.76709e+00 9.51739e-01 47 2023 8 1.76851e+00 7.77117e-01 49 2023 9 1.45885e+00 5.64444e-01 138 2023 10 1.68159e+00 9.31518e-01 176 2023 11 1.79722e+00 1.03469e+00 140 2023 12 1.75107e+00 1.04808e+00 68 2024 1 1.67183e+00 8.98331e-01 110 2024 2 2.82349e+00 1.33553e+00 159 2024 3 2.16487e+00 1.16905e+00 125 2024 4 nan nan 0