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 6.26126e+01 4.16589e-03 16 2002 8 5.69246e+01 1.28393e-01 48 2002 9 5.07290e+01 2.74180e+00 45 2002 10 4.23359e+01 1.82864e+00 72 2002 11 3.35080e+01 2.40487e+00 154 2002 12 2.97769e+01 2.93797e-01 116 2003 1 3.21443e+01 1.47064e+00 128 2003 2 3.96056e+01 2.36843e+00 108 2003 3 4.82144e+01 1.79641e+00 24 2003 4 5.60410e+01 2.24712e+00 112 2003 5 6.09097e+01 1.07875e+00 44 2003 6 6.28906e+01 4.85483e-02 35 2003 7 6.18376e+01 5.36756e-01 32 2003 8 5.62480e+01 2.02510e-01 32 2003 9 5.13816e+01 2.20193e+00 117 2003 10 4.14767e+01 2.64035e+00 135 2003 11 3.36473e+01 1.91170e+00 143 2003 12 2.96802e+01 3.05103e-01 143 2004 1 3.26372e+01 1.22665e+00 103 2004 2 4.08405e+01 2.35360e-01 33 2004 3 4.87908e+01 1.60236e+00 118 2004 4 5.66684e+01 1.92253e+00 104 2004 5 6.09951e+01 7.04819e-01 51 2004 6 nan nan 0 2004 7 6.24597e+01 1.28377e-01 30 2004 8 5.65283e+01 9.16266e-01 32 2004 9 4.87020e+01 6.55005e-02 13 2004 10 4.10276e+01 2.55470e+00 46 2004 11 3.44380e+01 2.17573e+00 78 2004 12 2.95107e+01 6.26129e-02 73 2005 1 3.20515e+01 1.42135e+00 93 2005 2 3.90241e+01 1.93045e+00 107 2005 3 4.77236e+01 2.36000e+00 88 2005 4 nan nan 0 2005 5 6.16961e+01 4.55965e-01 45 2005 6 6.28798e+01 1.18128e-01 48 2005 7 6.11342e+01 5.63157e-01 20 2005 8 nan nan 0 2005 9 5.02496e+01 3.12557e+00 32 2005 10 4.18165e+01 2.33112e+00 150 2005 11 3.41595e+01 1.95677e+00 159 2005 12 2.96039e+01 1.23157e-01 50 2006 1 3.11149e+01 1.10514e+00 47 2006 2 4.18722e+01 1.89021e+00 98 2006 3 4.81381e+01 2.84923e+00 135 2006 4 5.67245e+01 2.03903e+00 85 2006 5 6.17341e+01 6.94630e-01 78 2006 6 6.29765e+01 1.14350e-02 32 2006 7 6.15355e+01 6.09658e-01 22 2006 8 5.89765e+01 1.02459e+00 51 2006 9 4.87062e+01 1.40957e+00 68 2006 10 4.31162e+01 3.15601e+00 140 2006 11 3.38063e+01 2.26116e+00 148 2006 12 2.98242e+01 3.94047e-01 79 2007 1 3.24774e+01 1.80665e+00 61 2007 2 4.03127e+01 2.09309e+00 141 2007 3 4.81398e+01 2.31234e+00 165 2007 4 5.73787e+01 1.85325e+00 139 2007 5 5.99916e+01 1.51047e-01 32 2007 6 nan nan 0 2007 7 6.17039e+01 7.38658e-01 47 2007 8 5.68198e+01 8.13173e-01 48 2007 9 4.94902e+01 8.86865e-01 28 2007 10 4.37169e+01 9.39058e-01 74 2007 11 3.42252e+01 2.12397e+00 177 2007 12 2.98756e+01 2.64121e-02 32 2008 1 3.21230e+01 2.12301e+00 86 2008 2 3.89364e+01 2.55410e+00 189 2008 3 4.96302e+01 2.85338e+00 96 2008 4 5.76350e+01 1.39675e+00 57 2008 5 6.19543e+01 3.32474e-01 76 2008 6 6.28561e+01 1.82524e-01 66 2008 7 6.22244e+01 1.10508e-02 16 2008 8 nan nan 0 2008 9 5.04227e+01 2.02984e+00 56 2008 10 4.13982e+01 2.67322e+00 149 2008 11 3.43391e+01 1.63345e+00 172 2008 12 2.99280e+01 3.76856e-01 100 2009 1 3.16545e+01 1.86409e+00 100 2009 2 4.01200e+01 2.60478e+00 164 2009 3 4.62732e+01 1.15569e+00 111 2009 4 nan nan 0 2009 5 6.14470e+01 6.48705e-01 44 2009 6 nan nan 0 2009 7 6.12082e+01 3.11438e-02 10 2009 8 5.82610e+01 1.12926e+00 23 2009 9 5.10451e+01 1.57225e+00 75 2009 10 4.19392e+01 3.22929e+00 128 2009 11 3.34028e+01 1.82739e+00 83 2009 12 2.96556e+01 3.01596e-02 16 2010 1 3.36348e+01 1.04571e+00 31 2010 2 4.24515e+01 1.16459e+00 42 2010 3 4.80693e+01 3.14019e+00 100 2010 4 5.73927e+01 1.67684e+00 77 2010 5 6.07986e+01 6.87901e-01 45 2010 6 6.27911e+01 1.11571e-01 66 2010 7 6.14653e+01 8.02151e-01 58 2010 8 nan nan 0 2010 9 5.04306e+01 2.28056e+00 98 2010 10 4.29045e+01 2.52091e+00 269 2010 11 3.36497e+01 1.75913e+00 215 2010 12 2.98873e+01 2.70652e-01 124 2011 1 3.22298e+01 1.60139e+00 101 2011 2 4.11653e+01 1.70382e+00 110 2011 3 4.96428e+01 1.53143e+00 112 2011 4 5.58129e+01 1.83638e+00 103 2011 5 6.13905e+01 6.84254e-01 69 2011 6 6.29397e+01 2.20441e-01 20 2011 7 6.18300e+01 7.32884e-03 7 2011 8 5.76716e+01 1.08989e+00 36 2011 9 5.16915e+01 2.56699e+00 110 2011 10 4.26423e+01 2.32231e+00 148 2011 11 3.44026e+01 1.41428e+00 89 2011 12 2.97904e+01 4.05396e-01 100 2012 1 3.16337e+01 1.81257e+00 107 2012 2 4.11372e+01 1.87377e+00 55 2012 3 4.94633e+01 1.75679e+00 144 2012 4 5.68855e+01 1.73593e+00 106 2012 5 6.09229e+01 6.92155e-01 52 2012 6 6.29586e+01 4.99553e-02 48 2012 7 6.16948e+01 6.01556e-01 41 2012 8 5.64720e+01 0.00000e+00 1 2012 9 5.19158e+01 2.41441e+00 45 2012 10 4.21746e+01 1.78703e+00 140 2012 11 3.42673e+01 2.24305e+00 134 2012 12 2.99168e+01 3.00123e-01 64 2013 1 3.32814e+01 1.32121e+00 92 2013 2 3.78049e+01 1.34005e+00 61 2013 3 4.99868e+01 3.12765e+00 38 2013 4 5.47344e+01 4.29732e-03 9 2013 5 6.09648e+01 3.99012e-01 48 2013 6 nan nan 0 2013 7 6.26951e+01 5.22051e-02 9 2013 8 5.76437e+01 7.29826e-01 48 2013 9 5.18454e+01 1.46853e+00 43 2013 10 4.21620e+01 2.51651e+00 126 2013 11 3.37672e+01 2.65598e+00 69 2013 12 2.95617e+01 1.60130e-01 123 2014 1 3.20689e+01 6.89638e-01 73 2014 2 4.07859e+01 1.76123e+00 102 2014 3 4.93763e+01 2.39568e+00 75 2014 4 5.38545e+01 2.32133e-02 19 2014 5 6.09388e+01 7.09214e-01 54 2014 6 6.28566e+01 1.78348e-01 30 2014 7 6.20976e+01 7.19642e-01 30 2014 8 5.70284e+01 1.92821e+00 50 2014 9 5.14411e+01 2.15928e+00 66 2014 10 4.24911e+01 2.62430e+00 226 2014 11 3.38988e+01 2.15214e+00 136 2014 12 2.96731e+01 1.92845e-01 114 2015 1 3.25352e+01 1.95343e+00 96 2015 2 3.96001e+01 1.36214e+00 84 2015 3 4.92588e+01 2.77399e+00 68 2015 4 5.40684e+01 5.55449e-01 45 2015 5 6.12966e+01 8.73161e-01 68 2015 6 6.29686e+01 4.95228e-02 22 2015 7 6.19157e+01 6.45201e-01 48 2015 8 5.70648e+01 9.87847e-01 53 2015 9 4.95692e+01 1.44455e+00 64 2015 10 4.22990e+01 2.35912e+00 95 2015 11 3.30612e+01 1.77868e+00 96 2015 12 3.00451e+01 2.92249e-01 98 2016 1 3.21063e+01 1.75485e+00 46 2016 2 3.88151e+01 2.11062e+00 41 2016 3 4.87217e+01 1.83402e+00 26 2016 4 5.44207e+01 2.48094e-01 33 2016 5 6.12819e+01 6.67040e-01 48 2016 6 6.27239e+01 2.25684e-01 112 2016 7 6.18843e+01 6.94447e-01 105 2016 8 5.64540e+01 8.60072e-01 49 2016 9 5.06845e+01 2.68846e+00 95 2016 10 4.21704e+01 2.63208e+00 233 2016 11 3.38828e+01 1.84776e+00 155 2016 12 2.94212e+01 4.38119e-02 99 2017 1 3.39484e+01 2.07840e+00 27 2017 2 4.07070e+01 2.51460e+00 108 2017 3 4.96676e+01 2.18281e+00 98 2017 4 5.62763e+01 1.85106e+00 83 2017 5 6.10081e+01 7.15422e-01 84 2017 6 6.26958e+01 2.01530e-01 33 2017 7 6.22883e+01 3.91594e-01 32 2017 8 5.86749e+01 7.42837e-01 32 2017 9 5.06046e+01 2.26461e+00 54 2017 10 4.14477e+01 2.50804e+00 94 2017 11 3.39251e+01 2.32200e+00 201 2017 12 2.99157e+01 2.42700e-01 97 2018 1 3.25695e+01 1.17136e+00 71 2018 2 4.13062e+01 2.47534e+00 72 2018 3 4.79564e+01 2.43318e+00 114 2018 4 5.67553e+01 2.01114e+00 128 2018 5 6.10733e+01 8.53763e-01 88 2018 6 nan nan 0 2018 7 6.18539e+01 6.93675e-01 33 2018 8 5.73689e+01 1.49026e+00 32 2018 9 5.12436e+01 2.25771e+00 142 2018 10 4.24547e+01 3.04939e+00 168 2018 11 3.30879e+01 1.47630e+00 72 2018 12 2.99968e+01 9.66176e-02 41 2019 1 3.24782e+01 4.75391e-01 32 2019 2 4.04595e+01 2.56711e+00 39 2019 3 4.82753e+01 2.71326e+00 98 2019 4 5.71946e+01 1.53706e+00 94 2019 5 6.11647e+01 7.82016e-01 112 2019 6 6.28608e+01 1.74978e-01 48 2019 7 6.06469e+01 7.99325e-02 32 2019 8 5.83858e+01 1.84036e+00 62 2019 9 5.15434e+01 2.74842e+00 137 2019 10 4.37120e+01 2.28962e+00 138 2019 11 3.31399e+01 2.24720e+00 123 2019 12 2.96976e+01 5.53238e-03 16 2020 1 3.15360e+01 1.62411e+00 68 2020 2 4.02611e+01 3.57204e+00 88 2020 3 5.05951e+01 2.24986e+00 29 2020 4 5.64335e+01 1.84366e+00 112 2020 5 6.13971e+01 5.74763e-01 32 2020 6 6.29718e+01 1.40738e-02 32 2020 7 6.12375e+01 1.72117e-01 17 2020 8 5.91956e+01 4.70009e-01 61 2020 9 5.24165e+01 1.33496e+00 48 2020 10 4.12089e+01 2.12943e+00 63 2020 11 3.41698e+01 1.97834e+00 120 2020 12 2.97382e+01 2.63847e-01 213 2021 1 3.14861e+01 1.68001e+00 74 2021 2 4.30403e+01 1.09007e+00 32 2021 3 4.81904e+01 2.11669e+00 43 2021 4 5.63281e+01 1.54838e+00 79 2021 5 6.17420e+01 5.17819e-01 61 2021 6 6.27926e+01 5.26678e-02 16 2021 7 6.17531e+01 6.45012e-01 48 2021 8 5.76481e+01 5.06769e-01 72 2021 9 5.19294e+01 2.53150e+00 44 2021 10 4.20648e+01 1.58790e+00 64 2021 11 3.39180e+01 1.86851e+00 157 2021 12 2.97267e+01 4.26431e-01 51 2022 1 3.20704e+01 1.86977e+00 120 2022 2 4.09465e+01 1.94575e+00 80 2022 3 4.76628e+01 3.07017e+00 84 2022 4 5.91617e+01 3.52664e-03 8 2022 5 6.07332e+01 1.12190e+00 47 2022 6 6.27827e+01 1.63487e-01 68 2022 7 6.15783e+01 7.14949e-01 69 2022 8 5.87562e+01 9.79774e-01 44 2022 9 5.01278e+01 5.99386e-01 40 2022 10 4.30089e+01 2.50055e+00 282 2022 11 3.48740e+01 2.08059e+00 96 2022 12 2.98878e+01 3.42937e-01 142 2023 1 3.05595e+01 5.47704e-01 97 2023 2 3.95297e+01 3.03991e+00 126 2023 3 4.89792e+01 1.54935e+00 101 2023 4 5.79904e+01 6.22994e-01 55 2023 5 6.01488e+01 9.52099e-02 16 2023 6 6.27374e+01 1.03456e-01 57 2023 7 6.24670e+01 2.63087e-01 20 2023 8 5.54872e+01 8.62951e-01 25 2023 9 5.19004e+01 1.43996e+00 124 2023 10 4.06082e+01 2.47558e+00 139 2023 11 3.45445e+01 1.92559e+00 100 2023 12 2.96765e+01 7.62759e-02 32 2024 1 3.09589e+01 1.17948e+00 55 2024 2 4.02863e+01 1.92094e+00 90 2024 3 5.02034e+01 2.47916e+00 47 2024 4 nan nan 0