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 2.39857e-01 3.44166e-02 18 2002 8 2.44374e-01 4.21135e-02 18 2002 9 3.51530e-01 8.74953e-02 84 2002 10 2.65396e-01 8.59021e-02 164 2002 11 3.01173e-01 9.58527e-02 77 2002 12 2.65322e-01 6.98243e-02 140 2003 1 2.28778e-01 7.47621e-02 144 2003 2 2.25849e-01 5.46630e-02 108 2003 3 2.77007e-01 1.07095e-01 65 2003 4 2.85729e-01 5.01805e-02 60 2003 5 3.04295e-01 6.95086e-02 60 2003 6 nan nan 0 2003 7 nan nan 0 2003 8 2.85809e-01 5.71361e-02 32 2003 9 2.90650e-01 4.34667e-02 64 2003 10 3.33353e-01 7.44339e-02 134 2003 11 2.88645e-01 8.86193e-02 153 2003 12 2.84641e-01 8.63348e-02 112 2004 1 2.31714e-01 7.39657e-02 126 2004 2 3.30555e-01 1.14307e-01 108 2004 3 2.85924e-01 6.54161e-02 93 2004 4 3.00270e-01 1.67171e-01 45 2004 5 2.66604e-01 3.50524e-02 69 2004 6 2.82668e-01 8.13666e-02 124 2004 7 3.12409e-01 2.72207e-02 45 2004 8 2.99876e-01 1.26414e-01 33 2004 9 3.03847e-01 2.68215e-02 63 2004 10 3.66662e-01 2.17327e-01 85 2004 11 2.87692e-01 1.39687e-01 118 2004 12 2.75350e-01 5.33563e-02 100 2005 1 2.23946e-01 8.54972e-02 134 2005 2 2.96947e-01 2.35836e-01 111 2005 3 2.24640e-01 7.82596e-02 112 2005 4 2.60190e-01 9.71564e-02 96 2005 5 3.00465e-01 3.64100e-02 41 2005 6 2.74596e-01 1.70184e-02 16 2005 7 2.95790e-01 4.29009e-02 52 2005 8 3.59179e-01 5.47261e-02 31 2005 9 3.63351e-01 1.60026e-01 80 2005 10 3.36733e-01 1.19082e-01 95 2005 11 2.71565e-01 6.87406e-02 136 2005 12 2.72486e-01 4.97180e-02 156 2006 1 2.53501e-01 5.57825e-02 136 2006 2 2.52494e-01 7.18235e-02 199 2006 3 2.67351e-01 4.68936e-02 133 2006 4 2.70313e-01 4.88290e-02 79 2006 5 2.84223e-01 5.08461e-02 48 2006 6 2.28972e-01 5.36299e-02 32 2006 7 3.30169e-01 3.13853e-02 32 2006 8 3.08587e-01 3.56302e-02 37 2006 9 3.59674e-01 9.23478e-02 40 2006 10 3.01386e-01 8.44228e-02 101 2006 11 2.54764e-01 8.31230e-02 112 2006 12 2.22405e-01 7.56110e-02 42 2007 1 2.54149e-01 6.98347e-02 128 2007 2 2.22307e-01 5.90371e-02 112 2007 3 2.78167e-01 5.31654e-02 30 2007 4 3.14973e-01 1.00286e-01 120 2007 5 2.54358e-01 5.14881e-02 63 2007 6 2.64820e-01 3.45542e-02 64 2007 7 3.12186e-01 1.26106e-01 61 2007 8 2.57320e-01 3.93085e-02 67 2007 9 2.83707e-01 7.22791e-02 16 2007 10 4.08972e-01 1.25713e-01 47 2007 11 2.71042e-01 9.09095e-02 214 2007 12 2.62187e-01 6.54151e-02 182 2008 1 2.04187e-01 6.62836e-02 50 2008 2 2.33772e-01 7.31178e-02 121 2008 3 2.85690e-01 1.46755e-02 36 2008 4 3.66006e-01 2.94276e-01 52 2008 5 3.02819e-01 3.22241e-02 24 2008 6 2.74066e-01 4.72202e-02 47 2008 7 3.09927e-01 6.84449e-02 71 2008 8 3.24815e-01 6.12204e-02 64 2008 9 nan nan 0 2008 10 3.70054e-01 6.90949e-02 73 2008 11 3.21570e-01 1.33782e-01 149 2008 12 2.23143e-01 4.83125e-02 90 2009 1 2.72575e-01 8.04951e-02 195 2009 2 2.80918e-01 9.63280e-02 139 2009 3 2.69172e-01 7.66414e-02 78 2009 4 3.08356e-01 4.85714e-02 32 2009 5 2.64589e-01 2.49050e-02 80 2009 6 nan nan 0 2009 7 2.63147e-01 2.07380e-02 16 2009 8 4.29026e-01 8.28272e-02 33 2009 9 3.79013e-01 1.37590e-01 16 2009 10 3.21947e-01 1.06161e-01 141 2009 11 3.43851e-01 1.92012e-01 143 2009 12 2.65686e-01 6.78697e-02 82 2010 1 2.47202e-01 6.37640e-02 136 2010 2 2.63851e-01 6.26721e-02 95 2010 3 3.04213e-01 9.28651e-02 117 2010 4 3.52196e-01 1.33081e-01 50 2010 5 2.86273e-01 2.91016e-02 64 2010 6 2.65731e-01 6.06998e-02 80 2010 7 3.39541e-01 4.73692e-02 48 2010 8 2.51380e-01 4.38620e-02 47 2010 9 nan nan 0 2010 10 2.72975e-01 1.05805e-01 161 2010 11 2.53585e-01 7.67163e-02 172 2010 12 2.53183e-01 1.08855e-01 234 2011 1 2.56799e-01 4.68514e-02 80 2011 2 2.38385e-01 6.35475e-02 135 2011 3 2.58781e-01 5.35811e-02 148 2011 4 2.71169e-01 4.00279e-02 64 2011 5 2.63169e-01 7.13997e-02 61 2011 6 2.45490e-01 3.81191e-02 60 2011 7 2.81311e-01 4.05718e-02 44 2011 8 nan nan 0 2011 9 2.79287e-01 4.20565e-02 46 2011 10 2.91841e-01 5.74813e-02 69 2011 11 2.97371e-01 4.87875e-02 121 2011 12 2.56265e-01 1.02104e-01 156 2012 1 2.34207e-01 6.04945e-02 167 2012 2 2.77311e-01 4.58786e-02 96 2012 3 2.77148e-01 4.47263e-02 97 2012 4 2.46117e-01 3.18819e-02 61 2012 5 3.32741e-01 8.53200e-02 48 2012 6 2.94063e-01 6.34507e-02 32 2012 7 3.50990e-01 2.35713e-02 32 2012 8 2.98336e-01 8.23281e-02 39 2012 9 2.96991e-01 5.77351e-02 72 2012 10 3.06842e-01 7.04271e-02 138 2012 11 2.50505e-01 7.15039e-02 175 2012 12 4.05676e-01 4.32089e-01 52 2013 1 2.45164e-01 6.78107e-02 124 2013 2 2.62096e-01 5.48731e-02 127 2013 3 2.78723e-01 8.00217e-02 140 2013 4 2.70226e-01 5.67478e-02 31 2013 5 3.01468e-01 4.24927e-02 64 2013 6 3.02197e-01 2.70515e-02 32 2013 7 3.19592e-01 4.86907e-02 90 2013 8 3.68812e-01 3.85318e-02 16 2013 9 3.49107e-01 1.26678e-01 36 2013 10 3.42360e-01 1.04052e-01 194 2013 11 2.85671e-01 7.75421e-02 80 2013 12 2.97801e-01 8.47241e-02 136 2014 1 2.67974e-01 7.16455e-02 150 2014 2 2.57663e-01 6.15628e-02 168 2014 3 2.44281e-01 5.78878e-02 157 2014 4 2.40516e-01 5.78074e-02 69 2014 5 2.58412e-01 7.10184e-02 74 2014 6 2.79901e-01 3.85814e-02 72 2014 7 2.88020e-01 4.41627e-02 38 2014 8 3.37338e-01 7.66156e-02 80 2014 9 3.44454e-01 7.11929e-02 36 2014 10 3.40981e-01 1.08961e-01 122 2014 11 2.72278e-01 7.30318e-02 115 2014 12 2.50742e-01 5.76721e-02 122 2015 1 2.44926e-01 9.75745e-02 115 2015 2 2.40187e-01 5.97153e-02 144 2015 3 2.75106e-01 7.77297e-02 158 2015 4 3.71022e-01 1.56625e-01 37 2015 5 3.10117e-01 1.21661e-01 96 2015 6 3.38627e-01 7.85928e-02 57 2015 7 3.22024e-01 5.04590e-02 72 2015 8 3.17927e-01 4.60915e-02 64 2015 9 3.04163e-01 7.22728e-02 30 2015 10 3.64006e-01 4.61280e-02 36 2015 11 2.98968e-01 4.87225e-02 87 2015 12 3.69559e-01 9.30379e-02 88 2016 1 3.76664e-01 1.38058e-01 54 2016 2 2.77636e-01 7.25446e-02 126 2016 3 3.38447e-01 8.24481e-02 96 2016 4 3.81648e-01 5.43347e-02 22 2016 5 3.62540e-01 1.28921e-01 49 2016 6 3.79534e-01 6.16906e-02 42 2016 7 3.70316e-01 7.72685e-02 112 2016 8 3.24294e-01 4.72305e-02 56 2016 9 3.24045e-01 1.77733e-01 96 2016 10 3.20594e-01 1.29532e-01 53 2016 11 3.02098e-01 7.42005e-02 159 2016 12 2.88228e-01 8.07262e-02 96 2017 1 3.07890e-01 1.01427e-01 154 2017 2 2.88998e-01 9.26440e-02 94 2017 3 3.34990e-01 2.32101e-01 147 2017 4 3.20038e-01 5.74904e-02 48 2017 5 3.00833e-01 6.29391e-02 126 2017 6 3.33662e-01 3.89108e-02 48 2017 7 3.71352e-01 8.16375e-02 84 2017 8 3.42521e-01 6.35025e-02 110 2017 9 4.21320e-01 1.74660e-01 41 2017 10 6.43593e-01 2.66113e-01 74 2017 11 3.66808e-01 1.54682e-01 169 2017 12 3.61825e-01 1.07436e-01 264 2018 1 2.93909e-01 1.08890e-01 117 2018 2 2.75222e-01 7.61372e-02 183 2018 3 2.57219e-01 7.49936e-02 150 2018 4 2.72222e-01 9.01931e-02 62 2018 5 2.35596e-01 1.45457e-02 13 2018 6 3.43777e-01 3.78661e-02 32 2018 7 3.10787e-01 3.53845e-02 61 2018 8 3.33176e-01 7.26744e-02 42 2018 9 3.40483e-01 5.58332e-02 127 2018 10 3.29190e-01 4.77384e-02 90 2018 11 2.71662e-01 5.82400e-02 58 2018 12 2.99309e-01 8.92561e-02 102 2019 1 2.35414e-01 6.58031e-02 151 2019 2 2.71169e-01 6.79047e-02 243 2019 3 3.09733e-01 9.50121e-02 128 2019 4 2.80138e-01 2.99017e-02 96 2019 5 3.12654e-01 1.63708e-02 30 2019 6 3.24146e-01 2.38698e-02 32 2019 7 2.98451e-01 7.00739e-02 66 2019 8 3.27875e-01 7.44859e-02 66 2019 9 2.50687e-01 3.17573e-02 48 2019 10 2.42763e-01 7.35926e-02 110 2019 11 2.59310e-01 6.84688e-02 153 2019 12 2.63594e-01 6.02219e-02 147 2020 1 3.23639e-01 1.09786e-01 174 2020 2 2.66885e-01 5.48171e-02 102 2020 3 3.04304e-01 4.90000e-02 61 2020 4 3.05870e-01 4.75339e-02 90 2020 5 3.34746e-01 1.14291e-01 68 2020 6 3.76998e-01 9.53945e-02 48 2020 7 3.12027e-01 2.27671e-02 27 2020 8 3.65945e-01 1.59572e-01 89 2020 9 2.92151e-01 8.11313e-02 70 2020 10 3.12960e-01 8.11443e-02 102 2020 11 2.85962e-01 7.99511e-02 71 2020 12 3.15008e-01 9.25493e-02 167 2021 1 3.17074e-01 7.29812e-02 187 2021 2 2.42073e-01 1.51042e-01 113 2021 3 2.69929e-01 1.21945e-01 145 2021 4 2.88991e-01 3.61170e-02 48 2021 5 2.60116e-01 5.00569e-02 50 2021 6 nan nan 0 2021 7 3.03886e-01 1.03895e-01 93 2021 8 3.13373e-01 6.93927e-02 90 2021 9 2.88312e-01 1.09209e-01 73 2021 10 2.63198e-01 5.28835e-02 66 2021 11 2.72459e-01 7.92032e-02 108 2021 12 2.81718e-01 9.56339e-02 218 2022 1 2.86072e-01 1.05468e-01 112 2022 2 2.64958e-01 1.03211e-01 162 2022 3 3.21353e-01 5.42823e-02 48 2022 4 2.74950e-01 8.39677e-02 44 2022 5 2.82455e-01 5.63829e-02 103 2022 6 3.18194e-01 5.81353e-02 64 2022 7 3.32895e-01 7.76260e-02 134 2022 8 2.29388e-01 5.07433e-02 62 2022 9 2.45784e-01 6.35387e-02 79 2022 10 3.54752e-01 8.27901e-02 99 2022 11 2.82012e-01 1.70545e-01 164 2022 12 3.01824e-01 9.06651e-02 117 2023 1 2.91083e-01 7.49013e-02 229 2023 2 2.62596e-01 5.86021e-02 219 2023 3 2.39706e-01 5.10348e-02 112 2023 4 2.49190e-01 1.88195e-02 16 2023 5 3.08368e-01 1.81891e-02 42 2023 6 2.98546e-01 2.06052e-02 48 2023 7 3.52239e-01 1.92582e-02 16 2023 8 2.65432e-01 8.00652e-02 79 2023 9 3.12218e-01 4.10979e-02 22 2023 10 3.27024e-01 5.16239e-02 64 2023 11 3.24643e-01 7.52500e-02 70 2023 12 3.11669e-01 1.46664e-01 107 2024 1 2.54336e-01 3.08102e-02 53 2024 2 2.53521e-01 9.19809e-02 103 2024 3 3.56959e-01 1.18509e-01 72 2024 4 2.88020e-01 1.79698e-02 16