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 2.18826e+00 1.55082e-01 16 2002 8 6.18971e+00 3.39575e-01 16 2002 9 6.18623e+00 2.68618e+00 39 2002 10 7.09824e+00 1.99426e+00 51 2002 11 4.91146e+00 7.72868e-01 167 2002 12 4.46488e+00 1.20562e+00 130 2003 1 4.15185e+00 1.01042e+00 195 2003 2 2.96723e+00 4.48241e-01 96 2003 3 8.76507e+00 2.48729e+00 34 2003 4 5.76526e+00 1.82365e+00 127 2003 5 3.09903e+00 4.68557e-01 32 2003 6 4.12696e+00 5.64712e-01 52 2003 7 5.39791e+00 3.46485e-01 32 2003 8 nan nan 0 2003 9 6.81181e+00 1.05586e+00 63 2003 10 4.65227e+00 7.63806e-01 147 2003 11 5.16438e+00 8.09877e-01 177 2003 12 4.24389e+00 7.61018e-01 134 2004 1 2.70521e+00 6.03842e-01 90 2004 2 7.56890e+00 3.49437e+00 48 2004 3 5.07585e+00 1.42764e+00 161 2004 4 3.23486e+00 3.76540e-01 84 2004 5 2.45068e+00 2.98676e-01 60 2004 6 2.86922e+00 5.90482e-01 24 2004 7 3.24618e+00 1.42313e-01 18 2004 8 4.65017e+00 9.12677e-01 33 2004 9 6.23806e+00 1.88292e+00 62 2004 10 5.44909e+00 8.57326e-01 85 2004 11 4.95151e+00 1.02690e+00 99 2004 12 4.55766e+00 6.60251e-01 98 2005 1 5.04618e+00 1.05706e+00 104 2005 2 3.64753e+00 8.04349e-01 126 2005 3 5.22517e+00 1.72998e+00 146 2005 4 9.33776e+00 1.04508e+00 54 2005 5 4.29082e+00 5.14367e-01 55 2005 6 3.23812e+00 3.43902e-01 39 2005 7 7.90670e+00 1.48821e+00 26 2005 8 7.53614e+00 8.82959e-01 54 2005 9 2.00501e+00 1.99931e-01 15 2005 10 3.26684e+00 6.84766e-01 168 2005 11 2.88947e+00 7.36799e-01 114 2005 12 3.36034e+00 5.22120e-01 97 2006 1 4.58185e+00 7.41266e-01 76 2006 2 4.21966e+00 1.01968e+00 159 2006 3 4.06455e+00 1.05597e+00 168 2006 4 2.80949e+00 6.30281e-01 100 2006 5 3.11546e+00 5.24117e-01 90 2006 6 3.19255e+00 1.48722e-01 15 2006 7 3.02521e+00 3.67977e-01 47 2006 8 2.79727e+00 7.47791e-01 54 2006 9 3.39434e+00 8.86941e-01 105 2006 10 3.00374e+00 5.52442e-01 161 2006 11 2.93133e+00 5.36119e-01 173 2006 12 4.64503e+00 7.43706e-01 76 2007 1 6.70158e+00 1.39902e+00 76 2007 2 4.98160e+00 1.40073e+00 117 2007 3 3.08447e+00 5.90576e-01 181 2007 4 3.27375e+00 1.16540e+00 133 2007 5 2.43834e+00 9.03202e-01 33 2007 6 2.25662e+00 8.19319e-02 10 2007 7 2.33304e+00 9.66472e-01 62 2007 8 2.63912e+00 4.78845e-01 51 2007 9 4.77692e+00 9.30941e-01 72 2007 10 4.00022e+00 3.53568e-01 90 2007 11 3.66459e+00 6.03951e-01 170 2007 12 3.98553e+00 5.05972e-01 54 2008 1 3.70145e+00 1.29511e+00 142 2008 2 3.51812e+00 1.17273e+00 181 2008 3 6.25640e+00 1.26053e+00 145 2008 4 4.36722e+00 9.22700e-01 93 2008 5 3.48977e+00 4.85764e-01 132 2008 6 2.79383e+00 8.45581e-01 39 2008 7 2.82915e+00 2.74786e-01 24 2008 8 3.93569e+00 5.15792e-02 4 2008 9 5.47520e+00 9.72647e-01 93 2008 10 4.76195e+00 9.44157e-01 198 2008 11 3.67610e+00 1.40023e+00 163 2008 12 4.49501e+00 9.55333e-01 129 2009 1 4.49711e+00 1.43423e+00 143 2009 2 3.24081e+00 5.27735e-01 160 2009 3 2.89910e+00 1.06955e+00 131 2009 4 6.20703e+00 2.96513e-01 34 2009 5 3.86681e+00 2.49461e-01 72 2009 6 nan nan 0 2009 7 3.08008e+00 3.20775e-02 7 2009 8 3.05735e+00 5.41107e-01 37 2009 9 5.72820e+00 1.89293e+00 40 2009 10 5.52975e+00 1.20465e+00 143 2009 11 4.22852e+00 9.54869e-01 126 2009 12 7.70991e+00 2.89905e+00 37 2010 1 6.69786e+00 1.11968e+00 93 2010 2 6.87658e+00 1.70676e+00 72 2010 3 5.05577e+00 9.94455e-01 106 2010 4 4.70738e+00 9.96861e-01 102 2010 5 3.76885e+00 7.91271e-01 64 2010 6 3.08403e+00 5.56669e-01 67 2010 7 2.92168e+00 1.31532e-01 9 2010 8 nan nan 0 2010 9 4.24944e+00 6.66773e-01 130 2010 10 4.14401e+00 8.81485e-01 205 2010 11 3.94923e+00 8.34544e-01 224 2010 12 3.73696e+00 8.45745e-01 172 2011 1 2.87393e+00 7.32930e-01 130 2011 2 3.55622e+00 7.75529e-01 119 2011 3 3.25681e+00 1.34645e+00 112 2011 4 3.12366e+00 3.16271e-01 124 2011 5 2.46182e+00 5.21470e-01 71 2011 6 3.49672e+00 2.41205e-01 47 2011 7 2.91222e+00 3.96917e-01 60 2011 8 3.23943e+00 2.07487e-01 38 2011 9 3.18883e+00 8.18398e-01 81 2011 10 4.64978e+00 1.27726e+00 232 2011 11 4.74101e+00 1.24825e+00 130 2011 12 2.68323e+00 1.14873e+00 190 2012 1 3.14348e+00 7.01840e-01 166 2012 2 2.25457e+00 8.72845e-01 32 2012 3 3.44326e+00 9.34530e-01 120 2012 4 2.58935e+00 3.57510e-01 78 2012 5 3.00362e+00 5.76483e-01 56 2012 6 3.41502e+00 5.58481e-02 15 2012 7 6.32746e+00 1.99304e+00 47 2012 8 1.30224e+01 5.53475e-01 15 2012 9 7.85042e+00 1.75894e+00 55 2012 10 6.54112e+00 1.36010e+00 181 2012 11 2.56845e+00 7.62754e-01 137 2012 12 1.87384e+00 5.65688e-01 76 2013 1 3.33641e+00 7.79825e-01 96 2013 2 3.54059e+00 1.56420e+00 85 2013 3 7.74130e+00 1.82300e+00 82 2013 4 5.61694e+00 5.46250e-01 31 2013 5 3.41916e+00 1.24110e+00 46 2013 6 4.41710e+00 1.81652e-01 16 2013 7 1.13815e+01 3.92238e-01 5 2013 8 8.08774e+00 2.40109e+00 37 2013 9 6.10616e+00 1.43400e+00 102 2013 10 4.66090e+00 1.11119e+00 130 2013 11 3.61916e+00 8.93027e-01 94 2013 12 3.41201e+00 8.05519e-01 134 2014 1 6.59285e+00 1.60882e+00 94 2014 2 3.53335e+00 8.21216e-01 143 2014 3 6.34339e+00 8.25092e-01 100 2014 4 8.16111e+00 1.62211e+00 50 2014 5 7.68900e+00 2.72380e+00 68 2014 6 4.03385e+00 3.87524e-01 50 2014 7 3.14796e+00 1.15282e-01 28 2014 8 2.13316e+00 6.02356e-01 37 2014 9 2.78848e+00 8.14410e-01 90 2014 10 3.25521e+00 1.03065e+00 238 2014 11 3.65420e+00 1.12611e+00 192 2014 12 5.45293e+00 2.05603e+00 137 2015 1 7.27318e+00 1.38054e+00 118 2015 2 6.62316e+00 1.70950e+00 123 2015 3 3.96727e+00 5.99372e-01 71 2015 4 3.09679e+00 4.49201e-01 40 2015 5 3.03258e+00 6.11352e-01 80 2015 6 2.75768e+00 7.53574e-01 14 2015 7 3.10774e+00 7.61442e-01 26 2015 8 3.79108e+00 5.63475e-01 34 2015 9 4.10803e+00 1.19624e+00 42 2015 10 4.21337e+00 9.71677e-01 144 2015 11 6.24427e+00 3.26629e+00 72 2015 12 6.16383e+00 1.61439e+00 88 2016 1 8.59722e+00 9.63028e-01 60 2016 2 5.78694e+00 9.76111e-01 188 2016 3 4.80528e+00 1.18850e+00 133 2016 4 6.65157e+00 8.44591e-01 44 2016 5 3.34536e+00 6.85977e-01 51 2016 6 2.47446e+00 4.70571e-01 100 2016 7 3.00274e+00 4.80658e-01 127 2016 8 6.89599e+00 1.10241e+00 94 2016 9 6.06514e+00 1.85877e+00 86 2016 10 4.27577e+00 9.01788e-01 234 2016 11 3.70996e+00 1.40557e+00 157 2016 12 2.61007e+00 6.74544e-01 108 2017 1 3.88474e+00 1.29566e+00 127 2017 2 5.18632e+00 1.10738e+00 143 2017 3 4.19762e+00 1.29596e+00 169 2017 4 3.59132e+00 1.22710e+00 76 2017 5 3.07632e+00 8.37974e-01 74 2017 6 4.39639e+00 7.87718e-01 37 2017 7 5.96146e+00 7.44082e-01 35 2017 8 5.63740e+00 7.80866e-01 32 2017 9 4.80076e+00 1.14336e+00 48 2017 10 4.48849e+00 1.23642e+00 193 2017 11 3.20246e+00 8.50389e-01 246 2017 12 2.25492e+00 3.41711e-01 77 2018 1 2.48987e+00 1.13768e+00 175 2018 2 2.69294e+00 8.49630e-01 64 2018 3 3.64145e+00 9.90022e-01 178 2018 4 2.89178e+00 3.29995e-01 119 2018 5 3.05639e+00 7.82992e-01 52 2018 6 4.26225e+00 8.54389e-01 29 2018 7 3.64479e+00 7.60670e-01 15 2018 8 7.09256e+00 1.74741e-01 16 2018 9 6.09862e+00 1.54281e+00 105 2018 10 7.31312e+00 1.86500e+00 150 2018 11 5.40673e+00 7.10572e-01 78 2018 12 6.78815e+00 1.55098e+00 63 2019 1 8.39277e+00 1.42434e+00 100 2019 2 7.06010e+00 7.81194e-01 42 2019 3 5.52869e+00 5.64889e-01 116 2019 4 4.86772e+00 6.86271e-01 80 2019 5 3.36406e+00 5.70541e-01 114 2019 6 4.23849e+00 7.51831e-01 21 2019 7 4.75318e+00 1.00436e+00 75 2019 8 5.69525e+00 1.23462e+00 39 2019 9 4.84941e+00 1.25754e+00 113 2019 10 4.18997e+00 8.40297e-01 131 2019 11 4.02841e+00 5.32624e-01 140 2019 12 5.49241e+00 1.10600e+00 48 2020 1 4.74998e+00 8.15940e-01 84 2020 2 5.99239e+00 2.25587e+00 122 2020 3 7.01229e+00 1.30476e+00 79 2020 4 4.57642e+00 5.96567e-01 64 2020 5 4.29663e+00 8.53061e-01 80 2020 6 7.52335e+00 2.32396e+00 60 2020 7 nan nan 0 2020 8 3.10044e+00 4.02769e-01 30 2020 9 4.90261e+00 1.37199e+00 32 2020 10 6.71168e+00 7.74135e-01 87 2020 11 5.55937e+00 1.27982e+00 162 2020 12 3.26068e+00 6.22189e-01 221 2021 1 4.71322e+00 1.17398e+00 64 2021 2 6.42254e+00 5.34902e-01 80 2021 3 6.31089e+00 1.05227e+00 120 2021 4 4.10825e+00 8.17701e-01 111 2021 5 4.14502e+00 1.12373e+00 130 2021 6 2.51448e+00 3.23704e-01 46 2021 7 7.03408e+00 1.48454e+00 20 2021 8 6.33257e+00 1.41649e+00 68 2021 9 7.35205e+00 1.96738e+00 35 2021 10 6.05099e+00 6.43124e-02 18 2021 11 4.34607e+00 7.72703e-01 240 2021 12 3.26929e+00 5.48072e-01 89 2022 1 4.28137e+00 7.65403e-01 108 2022 2 4.22356e+00 5.70099e-01 118 2022 3 5.86566e+00 1.67450e+00 159 2022 4 5.46453e+00 4.99397e-01 20 2022 5 4.09591e+00 7.27277e-01 33 2022 6 4.53665e+00 6.82407e-01 59 2022 7 3.73590e+00 1.25195e+00 67 2022 8 3.95704e+00 2.45987e-01 36 2022 9 7.41459e+00 2.45295e+00 84 2022 10 4.47952e+00 8.80373e-01 217 2022 11 3.39154e+00 7.20908e-01 137 2022 12 2.69274e+00 1.15533e+00 191 2023 1 2.87059e+00 8.22435e-01 221 2023 2 5.33336e+00 9.76957e-01 138 2023 3 4.42773e+00 9.32717e-01 121 2023 4 3.72999e+00 1.04962e+00 71 2023 5 3.71102e+00 1.89488e+00 60 2023 6 3.97757e+00 4.02559e-01 78 2023 7 4.24706e+00 6.38346e-02 16 2023 8 3.85047e+00 1.04544e+00 60 2023 9 5.96924e+00 1.07384e+00 107 2023 10 4.98989e+00 5.16986e-01 177 2023 11 4.37249e+00 1.61617e+00 112 2023 12 9.40380e+00 1.18743e+00 50 2024 1 7.68847e+00 8.59968e-01 64 2024 2 6.02295e+00 1.06155e+00 144 2024 3 4.91307e+00 9.42036e-01 78 2024 4 nan nan 0