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 6.17987e+01 3.52634e-03 16 2002 8 5.83713e+01 7.19279e-01 36 2002 9 4.99474e+01 2.67318e+00 61 2002 10 3.96790e+01 2.13125e+00 30 2002 11 3.31397e+01 2.04372e+00 68 2002 12 2.83461e+01 3.05067e-01 68 2003 1 3.05213e+01 1.82491e+00 165 2003 2 3.72833e+01 2.30286e+00 103 2003 3 nan nan 0 2003 4 5.58366e+01 2.73323e+00 52 2003 5 6.34547e+01 2.30014e-03 11 2003 6 6.35904e+01 3.33356e-03 16 2003 7 nan nan 0 2003 8 5.65033e+01 5.99454e-03 16 2003 9 5.15726e+01 2.44052e+00 79 2003 10 4.13501e+01 3.05045e+00 172 2003 11 3.34947e+01 2.13387e+00 163 2003 12 2.85135e+01 5.52997e-01 130 2004 1 3.07166e+01 1.08504e+00 69 2004 2 3.90870e+01 2.57916e+00 65 2004 3 4.86500e+01 1.70443e+00 117 2004 4 5.48531e+01 8.89888e-01 48 2004 5 6.23135e+01 9.14310e-01 48 2004 6 nan nan 0 2004 7 6.31154e+01 2.04944e-02 28 2004 8 5.78150e+01 2.73902e-03 16 2004 9 5.23231e+01 2.70419e+00 88 2004 10 4.04209e+01 2.24080e+00 72 2004 11 3.40090e+01 1.42598e+00 69 2004 12 2.80984e+01 1.63023e-01 96 2005 1 3.16586e+01 1.66220e+00 68 2005 2 3.85459e+01 1.77586e+00 80 2005 3 4.81772e+01 2.75607e+00 121 2005 4 nan nan 0 2005 5 nan nan 0 2005 6 6.35064e+01 4.10228e-02 32 2005 7 6.30354e+01 5.69914e-01 41 2005 8 nan nan 0 2005 9 5.01860e+01 3.37389e+00 31 2005 10 4.02685e+01 2.15384e+00 164 2005 11 3.23004e+01 2.00681e+00 150 2005 12 2.80338e+01 1.75662e-01 65 2006 1 3.13310e+01 2.04069e+00 77 2006 2 3.84686e+01 2.66211e+00 138 2006 3 4.77394e+01 3.10645e+00 160 2006 4 5.66765e+01 9.66504e-01 54 2006 5 6.23566e+01 8.43386e-01 112 2006 6 6.37712e+01 7.50707e-02 27 2006 7 6.27824e+01 1.24737e-01 24 2006 8 5.78650e+01 2.60357e+00 25 2006 9 4.94469e+01 2.72269e+00 93 2006 10 4.13441e+01 2.77402e+00 146 2006 11 3.22398e+01 2.14765e+00 161 2006 12 2.87375e+01 6.15531e-01 110 2007 1 3.17512e+01 1.66363e+00 66 2007 2 3.90666e+01 1.98309e+00 61 2007 3 4.83395e+01 2.65671e+00 112 2007 4 5.71960e+01 1.40247e+00 80 2007 5 6.06632e+01 5.36944e-01 32 2007 6 6.37579e+01 2.78132e-03 16 2007 7 6.32833e+01 5.31158e-02 20 2007 8 5.87740e+01 1.40799e+00 48 2007 9 5.23651e+01 2.76308e+00 25 2007 10 4.20793e+01 2.11742e+00 84 2007 11 3.23670e+01 1.79902e+00 124 2007 12 2.82113e+01 4.44355e-02 46 2008 1 3.00029e+01 6.57218e-01 64 2008 2 3.61720e+01 2.18978e+00 52 2008 3 4.94316e+01 2.06784e+00 106 2008 4 5.77296e+01 1.26791e-03 16 2008 5 6.25367e+01 1.72304e-01 18 2008 6 6.37751e+01 2.25075e-01 48 2008 7 6.11895e+01 2.69261e-03 16 2008 8 5.79072e+01 1.86601e+00 46 2008 9 5.20090e+01 2.07819e+00 68 2008 10 4.07012e+01 3.30714e+00 162 2008 11 3.25914e+01 1.94849e+00 205 2008 12 2.84218e+01 4.55468e-01 94 2009 1 3.15300e+01 1.72046e+00 85 2009 2 3.82241e+01 2.62061e+00 108 2009 3 4.67314e+01 1.89602e+00 48 2009 4 5.85077e+01 4.57203e-01 6 2009 5 6.33796e+01 7.73509e-03 5 2009 6 6.39226e+01 5.11320e-02 30 2009 7 nan nan 0 2009 8 5.94746e+01 4.04513e-03 16 2009 9 nan nan 0 2009 10 4.28938e+01 2.50986e+00 50 2009 11 3.33322e+01 9.19511e-01 44 2009 12 2.84737e+01 1.37361e-03 6 2010 1 2.96481e+01 9.74207e-01 72 2010 2 4.05062e+01 1.81700e+00 72 2010 3 4.65081e+01 2.76609e+00 74 2010 4 5.70551e+01 1.74812e+00 78 2010 5 6.20414e+01 7.28174e-01 36 2010 6 6.37851e+01 7.94628e-02 72 2010 7 6.28797e+01 9.95809e-01 25 2010 8 nan nan 0 2010 9 4.97763e+01 2.26334e+00 84 2010 10 4.23110e+01 2.79402e+00 214 2010 11 3.41262e+01 1.18069e+00 100 2010 12 2.85663e+01 5.34671e-01 160 2011 1 3.05346e+01 1.53755e+00 179 2011 2 3.94075e+01 1.95077e+00 136 2011 3 4.97358e+01 1.96880e+00 112 2011 4 5.66886e+01 2.34777e+00 78 2011 5 6.24284e+01 6.61844e-01 86 2011 6 6.38657e+01 2.00342e-01 60 2011 7 6.24915e+01 7.63795e-01 64 2011 8 5.72059e+01 1.26823e+00 49 2011 9 5.20388e+01 2.11555e+00 61 2011 10 4.20780e+01 3.15675e+00 157 2011 11 3.36091e+01 2.51517e+00 118 2011 12 2.83644e+01 5.46750e-01 96 2012 1 3.05192e+01 1.79783e+00 165 2012 2 3.79844e+01 1.26043e-01 28 2012 3 4.94650e+01 2.87690e+00 71 2012 4 5.73225e+01 2.05483e+00 81 2012 5 6.18268e+01 1.07718e+00 33 2012 6 6.37569e+01 1.69308e-01 16 2012 7 6.24665e+01 3.39221e-01 36 2012 8 5.65660e+01 0.00000e+00 2 2012 9 5.13126e+01 3.41942e+00 41 2012 10 4.10010e+01 2.82849e+00 160 2012 11 3.31291e+01 1.78656e+00 164 2012 12 2.84810e+01 4.35300e-01 121 2013 1 3.16708e+01 7.72584e-01 51 2013 2 3.75897e+01 2.88486e+00 92 2013 3 5.10608e+01 1.91000e+00 90 2013 4 5.58169e+01 9.86815e-01 32 2013 5 6.27971e+01 5.77783e-01 35 2013 6 6.36290e+01 1.10000e-02 28 2013 7 nan nan 0 2013 8 5.77448e+01 1.39173e-03 16 2013 9 5.29530e+01 1.27145e+00 50 2013 10 4.07054e+01 2.53037e+00 95 2013 11 3.29946e+01 2.32277e+00 154 2013 12 2.80693e+01 1.71659e-01 59 2014 1 3.10730e+01 9.56586e-01 56 2014 2 3.81067e+01 2.38818e+00 88 2014 3 4.82492e+01 3.95323e+00 50 2014 4 5.46954e+01 9.24939e-01 32 2014 5 6.26395e+01 1.65740e-03 4 2014 6 nan nan 0 2014 7 6.23639e+01 8.25239e-01 38 2014 8 5.75996e+01 1.05269e-03 16 2014 9 5.26642e+01 9.42707e-01 50 2014 10 4.12374e+01 2.93701e+00 222 2014 11 3.26981e+01 2.29456e+00 174 2014 12 2.84548e+01 3.83655e-01 128 2015 1 3.20530e+01 1.49915e+00 143 2015 2 3.73553e+01 1.70911e+00 160 2015 3 4.93512e+01 1.78521e+00 71 2015 4 5.37606e+01 2.11990e-01 18 2015 5 6.25096e+01 9.89151e-01 53 2015 6 6.38632e+01 1.83441e-02 17 2015 7 6.36106e+01 1.36565e-01 20 2015 8 5.63916e+01 6.58829e-01 55 2015 9 4.99676e+01 1.96467e+00 29 2015 10 4.12245e+01 1.96419e+00 106 2015 11 3.10744e+01 7.47523e-01 32 2015 12 2.85921e+01 4.76047e-01 60 2016 1 3.20319e+01 1.22685e+00 41 2016 2 3.93079e+01 2.59105e+00 113 2016 3 4.73770e+01 2.34751e+00 67 2016 4 5.84211e+01 1.76954e-03 15 2016 5 6.31407e+01 3.66528e-03 16 2016 6 6.39463e+01 6.32895e-02 39 2016 7 6.33434e+01 5.60563e-01 75 2016 8 5.78174e+01 3.37297e-01 29 2016 9 4.96413e+01 2.57444e+00 64 2016 10 4.06342e+01 2.59423e+00 170 2016 11 3.22004e+01 1.77355e+00 129 2016 12 2.84269e+01 6.28702e-01 74 2017 1 2.99504e+01 1.05804e+00 35 2017 2 3.97088e+01 2.62208e+00 80 2017 3 4.90160e+01 2.55687e+00 108 2017 4 5.58433e+01 1.79178e+00 96 2017 5 6.20833e+01 1.03790e+00 87 2017 6 6.38194e+01 1.16528e-03 16 2017 7 6.24357e+01 3.84601e-01 31 2017 8 5.83792e+01 1.09746e-02 16 2017 9 5.01916e+01 2.08662e+00 60 2017 10 3.91997e+01 1.66753e+00 48 2017 11 3.23005e+01 2.05634e+00 109 2017 12 2.85308e+01 4.89418e-01 98 2018 1 3.08980e+01 1.87707e+00 147 2018 2 3.92446e+01 3.10878e+00 28 2018 3 4.61258e+01 1.61891e+00 100 2018 4 5.73338e+01 1.64850e+00 109 2018 5 6.18136e+01 8.75757e-01 32 2018 6 6.37008e+01 1.72534e-02 32 2018 7 6.21494e+01 5.43177e-01 19 2018 8 5.83784e+01 1.67794e+00 30 2018 9 4.98646e+01 2.36899e+00 39 2018 10 4.06651e+01 2.80674e+00 101 2018 11 3.28087e+01 9.89082e-01 46 2018 12 2.85042e+01 4.69861e-01 49 2019 1 3.28498e+01 7.20818e-01 35 2019 2 4.04929e+01 2.31806e+00 32 2019 3 5.00390e+01 2.87231e+00 66 2019 4 5.78803e+01 6.98283e-01 64 2019 5 6.21600e+01 9.00248e-01 98 2019 6 6.38701e+01 1.40731e-03 14 2019 7 6.32711e+01 4.60765e-01 48 2019 8 5.81517e+01 2.35025e+00 32 2019 9 4.91109e+01 2.00733e+00 87 2019 10 4.22795e+01 2.82158e+00 110 2019 11 3.25787e+01 2.62975e+00 100 2019 12 2.82725e+01 3.67865e-01 56 2020 1 3.00081e+01 1.63989e+00 49 2020 2 3.92470e+01 2.85754e+00 64 2020 3 4.94054e+01 2.09528e+00 96 2020 4 5.74907e+01 2.12611e+00 64 2020 5 6.19767e+01 1.10822e+00 57 2020 6 6.40097e+01 1.13503e-01 26 2020 7 6.22307e+01 1.22316e-01 32 2020 8 5.96172e+01 6.90580e-01 32 2020 9 4.81413e+01 1.85303e-03 16 2020 10 3.84860e+01 1.36651e+00 52 2020 11 3.26219e+01 1.54839e+00 118 2020 12 2.83336e+01 4.01305e-01 144 2021 1 2.95823e+01 1.19743e+00 24 2021 2 3.95521e+01 2.51030e+00 118 2021 3 4.77005e+01 2.62341e+00 96 2021 4 5.57702e+01 1.62829e+00 43 2021 5 6.34553e+01 2.43700e-03 16 2021 6 nan nan 0 2021 7 nan nan 0 2021 8 5.82074e+01 1.58992e-03 14 2021 9 nan nan 0 2021 10 4.04286e+01 2.24990e+00 39 2021 11 3.22993e+01 1.62329e+00 189 2021 12 2.86962e+01 4.91424e-01 54 2022 1 3.20462e+01 1.55518e+00 131 2022 2 3.91994e+01 2.78195e+00 138 2022 3 4.76211e+01 2.81511e+00 116 2022 4 5.85800e+01 6.12402e-03 16 2022 5 6.19431e+01 9.72890e-01 25 2022 6 6.38734e+01 1.04521e-01 51 2022 7 6.29548e+01 7.19941e-01 67 2022 8 5.70648e+01 1.90956e+00 32 2022 9 4.97737e+01 2.70213e+00 90 2022 10 4.15444e+01 2.36278e+00 177 2022 11 3.33895e+01 2.34330e+00 123 2022 12 2.83530e+01 5.09741e-01 114 2023 1 3.08865e+01 1.83750e+00 144 2023 2 3.76499e+01 2.63818e+00 159 2023 3 4.67875e+01 1.59685e+00 31 2023 4 5.78972e+01 2.26953e-01 32 2023 5 6.16289e+01 1.07688e+00 48 2023 6 6.39162e+01 6.11238e-02 29 2023 7 6.26691e+01 1.01841e+00 65 2023 8 5.78869e+01 1.64143e+00 81 2023 9 4.97128e+01 2.33334e+00 67 2023 10 4.04469e+01 3.06062e+00 181 2023 11 3.33190e+01 2.43920e+00 136 2023 12 2.80811e+01 2.37569e-01 58 2024 1 3.09835e+01 1.74017e+00 69 2024 2 3.90883e+01 2.11347e+00 73 2024 3 4.86830e+01 3.11208e+00 64 2024 4 5.44184e+01 2.78649e-01 32