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 1.24478e+00 4.44517e-01 23 2002 8 1.33155e+00 1.85213e+00 39 2002 9 5.36738e+00 3.11800e+00 44 2002 10 5.90268e+00 1.35039e+00 52 2002 11 6.96418e+00 1.14440e+00 80 2002 12 4.58519e+00 7.29813e-01 96 2003 1 5.95774e+00 1.27292e+00 144 2003 2 2.73029e+00 4.70473e-01 128 2003 3 8.07557e+00 1.54915e+00 62 2003 4 5.68594e+00 7.66581e-01 28 2003 5 nan nan 0 2003 6 5.13275e+00 1.67093e-01 16 2003 7 nan nan 0 2003 8 9.06877e+00 1.33468e+00 48 2003 9 5.17495e+00 1.39568e+00 60 2003 10 2.52517e+00 9.05876e-01 141 2003 11 2.45178e+00 7.46831e-01 138 2003 12 3.47431e+00 2.75091e-01 128 2004 1 3.14734e+00 4.62120e-01 48 2004 2 6.13125e+00 1.15734e+00 39 2004 3 4.07196e+00 1.06647e+00 89 2004 4 7.89193e-01 1.13680e+00 50 2004 5 1.30517e+00 2.72173e-01 41 2004 6 nan nan 0 2004 7 5.99474e+00 4.63939e-01 32 2004 8 3.40368e+00 5.63310e-02 17 2004 9 7.17251e+00 3.11805e+00 69 2004 10 4.52365e+00 9.29622e-01 72 2004 11 6.59549e+00 6.02939e-01 117 2004 12 6.96614e+00 7.40311e-01 102 2005 1 5.00157e+00 9.59189e-01 70 2005 2 3.48299e+00 5.78426e-01 80 2005 3 2.90107e+00 5.20641e-01 73 2005 4 1.21729e+01 1.33481e+00 43 2005 5 5.98923e+00 2.03094e-01 26 2005 6 4.77279e+00 2.62707e-01 33 2005 7 5.94959e+00 1.77918e+00 32 2005 8 nan nan 0 2005 9 5.16239e+00 9.02013e-01 32 2005 10 3.32784e+00 1.07117e+00 158 2005 11 3.13409e+00 7.62520e-01 103 2005 12 3.51428e+00 4.10466e-01 67 2006 1 4.18479e+00 1.17287e+00 84 2006 2 3.42453e+00 3.69176e-01 82 2006 3 2.88998e+00 7.05253e-01 124 2006 4 1.73029e+00 1.20347e+00 40 2006 5 1.08934e+00 3.00731e-01 74 2006 6 2.11714e+00 1.05249e+00 33 2006 7 1.46786e+00 4.26034e-02 16 2006 8 2.36263e+00 1.11938e-01 16 2006 9 2.78523e+00 3.65261e-01 59 2006 10 2.67271e+00 8.02096e-01 157 2006 11 3.11516e+00 8.06406e-01 143 2006 12 2.56939e+00 7.37662e-01 97 2007 1 3.73300e+00 3.53786e-01 42 2007 2 2.69755e+00 1.97434e-01 50 2007 3 1.85385e+00 9.40226e-01 82 2007 4 3.37901e+00 2.16723e+00 37 2007 5 2.08413e+00 3.42056e-01 23 2007 6 2.83937e-02 0.00000e+00 1 2007 7 2.15007e+00 4.44960e-01 17 2007 8 2.90500e+00 1.29526e-01 16 2007 9 1.83533e+00 2.58471e-01 48 2007 10 3.41773e+00 2.77409e+00 105 2007 11 3.35995e+00 4.40026e-01 112 2007 12 4.20353e+00 8.14486e-01 74 2008 1 7.18326e+00 1.33892e+00 70 2008 2 7.32352e+00 1.98145e+00 99 2008 3 6.52416e+00 7.84659e-01 128 2008 4 6.55183e+00 1.62806e+00 33 2008 5 2.94065e+00 5.37024e-01 17 2008 6 2.16892e+00 5.57644e-01 39 2008 7 2.15009e+00 5.45183e-01 54 2008 8 1.88348e+00 1.31172e+00 39 2008 9 3.87468e+00 1.18728e+00 88 2008 10 2.69607e+00 5.01486e-01 143 2008 11 2.42663e+00 4.76758e-01 177 2008 12 4.95828e+00 1.61436e+00 75 2009 1 5.16408e+00 1.11493e+00 112 2009 2 3.34428e+00 2.86721e-01 96 2009 3 2.13534e+00 1.26204e-01 32 2009 4 1.30265e+01 7.42759e-02 16 2009 5 3.76715e+00 4.19896e-02 16 2009 6 6.76264e+00 3.69309e-02 13 2009 7 8.66985e+00 0.00000e+00 1 2009 8 4.20042e+00 1.18830e-01 16 2009 9 6.49081e+00 1.87218e+00 46 2009 10 4.58172e+00 2.12131e+00 84 2009 11 5.46117e+00 1.45574e+00 83 2009 12 6.51938e+00 9.02717e-01 46 2010 1 7.66068e+00 2.09336e+00 117 2010 2 9.13214e+00 5.61858e-01 85 2010 3 6.15973e+00 2.40227e-01 48 2010 4 3.70674e+00 6.06323e-01 64 2010 5 3.57594e+00 9.25961e-02 8 2010 6 3.47315e+00 2.49336e+00 47 2010 7 3.47883e+00 8.18983e-01 26 2010 8 nan nan 0 2010 9 2.84868e+00 8.13048e-01 97 2010 10 2.10603e+00 3.42728e-01 181 2010 11 2.46851e+00 4.26719e-01 102 2010 12 2.99366e+00 2.54341e-01 171 2011 1 2.99413e+00 4.26037e-01 139 2011 2 4.06146e+00 4.40895e-01 85 2011 3 4.41927e+00 1.69178e+00 112 2011 4 3.41532e+00 2.71364e-01 32 2011 5 2.49590e+00 2.38186e+00 56 2011 6 9.63838e-01 7.85985e-01 48 2011 7 1.37575e+00 3.35290e+00 32 2011 8 3.61547e+00 5.39634e-01 49 2011 9 2.98845e+00 4.37327e-01 36 2011 10 2.44036e+00 6.81847e-01 141 2011 11 1.91370e+00 2.85931e-01 119 2011 12 2.04695e+00 5.29205e-01 95 2012 1 3.00439e+00 6.22705e-01 118 2012 2 3.46799e+00 5.30601e-01 21 2012 3 4.77984e+00 3.69517e+00 49 2012 4 5.70698e-01 4.83387e-02 14 2012 5 1.08542e+00 3.92254e-01 43 2012 6 1.31800e+00 1.89832e+00 17 2012 7 7.92602e-01 2.97479e+00 31 2012 8 2.50882e+00 2.20502e-02 8 2012 9 4.13065e+00 1.08202e+00 23 2012 10 3.11742e+00 5.53805e-01 155 2012 11 2.14759e+00 3.56577e-01 174 2012 12 2.10371e+00 6.60049e-01 103 2013 1 3.00603e+00 5.39103e-01 78 2013 2 4.53846e+00 1.90976e+00 80 2013 3 7.89251e+00 2.70148e+00 80 2013 4 3.40665e+00 6.61550e-01 38 2013 5 2.06460e+00 8.20855e-01 19 2013 6 3.23172e+00 1.18991e-01 16 2013 7 1.09411e+01 9.83619e+00 28 2013 8 9.50454e+00 1.43793e+00 64 2013 9 5.62223e+00 1.04390e+00 38 2013 10 4.15609e+00 1.78044e+00 110 2013 11 2.73812e+00 2.22751e+00 134 2013 12 3.28309e+00 6.16486e-01 90 2014 1 4.77567e+00 2.94975e-01 70 2014 2 3.30097e+00 7.52079e-01 75 2014 3 5.88032e+00 5.98514e-01 40 2014 4 8.39617e+00 3.40073e-01 32 2014 5 8.89495e+00 1.27088e-01 5 2014 6 6.91571e+00 1.47293e-01 16 2014 7 7.08290e+00 1.00125e+00 27 2014 8 2.89789e+00 4.21335e-01 16 2014 9 2.65306e+00 6.21827e-01 40 2014 10 1.61572e+00 1.66318e+00 165 2014 11 3.00043e+00 5.35617e-01 160 2014 12 2.21473e+00 4.89389e-01 96 2015 1 3.88355e+00 1.19774e+00 147 2015 2 3.70180e+00 4.99544e-01 104 2015 3 3.64455e+00 2.03123e+00 60 2015 4 1.28956e+00 8.63499e-02 16 2015 5 7.49008e+00 8.72447e-02 5 2015 6 2.94532e+00 3.55954e-01 24 2015 7 2.40129e+00 2.76793e-01 23 2015 8 1.72204e+00 8.19430e-01 48 2015 9 1.03549e+00 1.62540e+00 42 2015 10 3.03654e+00 3.46117e-01 95 2015 11 6.56785e+00 1.54378e+00 27 2015 12 3.55409e+00 7.44667e-01 36 2016 1 9.14020e+00 2.17589e+00 100 2016 2 7.61923e+00 6.32710e-01 123 2016 3 5.91073e+00 8.60135e-01 64 2016 4 6.30306e+00 3.13781e+00 34 2016 5 3.26959e+00 5.41901e-01 18 2016 6 9.85733e-01 1.50460e+00 38 2016 7 2.06449e+00 2.05567e+00 37 2016 8 5.99172e+00 4.84515e-01 28 2016 9 2.08081e+00 1.50979e+00 64 2016 10 1.59334e+00 6.01164e-01 151 2016 11 1.82987e+00 4.74158e-01 165 2016 12 3.35303e+00 9.32748e-01 82 2017 1 9.02964e+00 1.02765e+00 88 2017 2 6.70789e+00 1.01661e+00 134 2017 3 4.09880e+00 2.14872e+00 62 2017 4 2.91030e+00 7.22135e-01 51 2017 5 1.14353e+00 5.90751e-01 50 2017 6 4.33175e+00 6.29029e-01 41 2017 7 1.22009e+01 5.38439e-01 24 2017 8 6.07381e+00 1.16969e-01 32 2017 9 4.63708e+00 1.29255e+00 41 2017 10 5.11170e+00 1.66536e+00 110 2017 11 4.47979e+00 2.03083e+00 124 2017 12 2.63285e+00 4.03461e-01 87 2018 1 2.66981e+00 5.83621e-01 128 2018 2 5.56795e+00 2.64388e+00 47 2018 3 4.60794e+00 3.98624e-01 64 2018 4 6.09526e-01 1.95624e+00 69 2018 5 -1.31399e-01 4.33829e-02 16 2018 6 4.86800e+00 7.70984e-01 27 2018 7 4.34231e+00 3.44306e-01 22 2018 8 3.89269e+00 1.28273e+00 32 2018 9 6.65823e+00 1.75598e+00 75 2018 10 3.32279e+00 1.12872e+00 112 2018 11 5.25668e+00 1.62177e+00 34 2018 12 7.13482e+00 5.77547e-01 48 2019 1 9.37540e+00 1.75049e+00 116 2019 2 3.96046e+00 8.68157e-01 32 2019 3 2.85281e+00 5.41821e-01 46 2019 4 3.13086e+00 1.28950e+00 67 2019 5 4.38824e+00 2.02340e+00 84 2019 6 2.46417e+00 1.46825e-01 19 2019 7 1.71985e+00 5.15216e-02 16 2019 8 2.98836e+00 3.99325e-02 15 2019 9 2.34600e+00 1.40602e+00 70 2019 10 1.92755e+00 5.11191e-01 99 2019 11 2.51254e+00 1.06683e+00 89 2019 12 2.45997e+00 1.59230e+00 75 2020 1 6.40703e+00 1.95847e+00 64 2020 2 6.75514e+00 9.45504e-01 100 2020 3 6.09953e+00 9.76811e-01 77 2020 4 4.21343e+00 7.36822e-01 32 2020 5 3.55033e+00 3.95520e-01 32 2020 6 2.83913e+00 1.39223e+00 35 2020 7 2.13422e+00 3.29692e-01 42 2020 8 7.98369e-01 1.16843e+00 23 2020 9 8.51594e+00 4.55187e+00 32 2020 10 6.36288e+00 2.03538e+00 88 2020 11 3.39095e+00 6.52105e-01 103 2020 12 3.56964e+00 3.28519e-01 130 2021 1 3.95482e+00 5.90954e-01 74 2021 2 4.24106e+00 9.10554e-01 113 2021 3 3.62318e+00 8.41307e-01 87 2021 4 6.60595e+00 1.44004e+00 62 2021 5 5.06438e+00 2.09707e+00 48 2021 6 -1.39878e+00 4.99933e-01 12 2021 7 4.81501e-01 3.84412e-01 4 2021 8 3.79773e+00 3.54702e-01 19 2021 9 6.33975e+00 2.17575e+00 30 2021 10 8.71268e+00 1.95672e+00 90 2021 11 3.46714e+00 7.63158e-01 125 2021 12 3.46077e+00 9.42313e-01 70 2022 1 3.97494e+00 4.31347e-01 132 2022 2 4.42139e+00 8.65923e-01 84 2022 3 3.98648e+00 3.23323e+00 105 2022 4 5.84703e+00 1.57302e+00 32 2022 5 4.49617e+00 3.17057e+00 56 2022 6 1.54150e+00 1.33198e+00 48 2022 7 7.58031e-01 2.28892e+00 58 2022 8 4.62966e+00 9.37132e-01 28 2022 9 3.73777e+00 4.28460e-01 109 2022 10 1.80327e+00 9.18781e-01 197 2022 11 1.39714e+00 1.32293e+00 126 2022 12 3.61056e+00 7.70804e-01 114 2023 1 4.00792e+00 1.06388e+00 157 2023 2 4.83128e+00 1.80096e+00 115 2023 3 4.08041e+00 7.14858e-01 25 2023 4 3.37716e+00 7.87143e-01 36 2023 5 1.16598e+00 4.21512e-01 48 2023 6 2.69696e+00 1.37308e+00 31 2023 7 4.66494e+00 6.89400e-01 42 2023 8 2.21497e+00 7.29520e-01 67 2023 9 1.55499e+00 1.16601e+00 43 2023 10 1.48901e+00 5.34779e-01 168 2023 11 2.15555e+00 6.20882e-01 118 2023 12 2.41804e+00 3.55649e-01 80 2024 1 3.23225e+00 9.13480e-01 76 2024 2 4.28353e+00 1.75242e-01 50 2024 3 4.89253e+00 1.99663e+00 53 2024 4 nan nan 0