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 3.90894e+00 2.65669e-01 23 2002 8 3.96588e+00 1.07455e+00 39 2002 9 1.72840e+00 1.47884e+00 44 2002 10 1.63753e+00 1.01922e+00 52 2002 11 1.10875e+00 1.07942e+00 80 2002 12 2.08231e+00 6.31966e-01 96 2003 1 1.09514e+00 9.35627e-01 144 2003 2 3.08511e+00 4.72094e-01 128 2003 3 6.80052e-01 1.06103e+00 62 2003 4 1.64121e+00 5.76357e-01 28 2003 5 nan nan 0 2003 6 1.81285e+00 2.24796e-01 16 2003 7 nan nan 0 2003 8 5.67839e-01 5.57100e-01 48 2003 9 1.92163e+00 6.86257e-01 60 2003 10 3.01550e+00 1.95146e+00 141 2003 11 3.23211e+00 6.94947e-01 138 2003 12 2.68092e+00 2.69899e-01 128 2004 1 2.73598e+00 2.97272e-01 48 2004 2 1.12645e+00 6.96771e-01 39 2004 3 2.52547e+00 6.45208e-01 89 2004 4 3.56068e+00 1.44917e+00 50 2004 5 3.79276e+00 2.04905e-01 41 2004 6 nan nan 0 2004 7 1.96924e+00 5.02819e-01 32 2004 8 2.75083e+00 1.60821e-01 17 2004 9 1.09516e+00 1.34952e+00 69 2004 10 2.42166e+00 6.78869e-01 72 2004 11 1.35822e+00 6.56568e-01 117 2004 12 9.98888e-01 7.53599e-01 102 2005 1 1.98790e+00 5.02546e-01 70 2005 2 2.66234e+00 3.65311e-01 80 2005 3 3.07282e+00 8.17900e-01 73 2005 4 -7.79378e-01 8.37005e-01 43 2005 5 1.72300e+00 4.21190e-01 26 2005 6 2.18010e+00 3.75647e-01 33 2005 7 1.93733e+00 5.47118e-01 32 2005 8 nan nan 0 2005 9 2.11478e+00 6.52771e-01 32 2005 10 2.83927e+00 8.71939e-01 158 2005 11 2.83278e+00 7.74645e-01 103 2005 12 2.46641e+00 5.75492e-01 67 2006 1 2.54380e+00 8.32742e-01 84 2006 2 2.53748e+00 3.05727e-01 82 2006 3 2.98337e+00 5.38199e-01 124 2006 4 3.76397e+00 6.76693e-01 40 2006 5 4.02700e+00 6.32161e-01 74 2006 6 3.73872e+00 1.00703e+00 33 2006 7 4.17968e+00 2.77077e-01 16 2006 8 3.56692e+00 1.67684e-01 16 2006 9 2.92469e+00 6.25480e-01 59 2006 10 2.89523e+00 6.12583e-01 157 2006 11 2.85027e+00 6.67069e-01 143 2006 12 3.14842e+00 5.85912e-01 97 2007 1 2.22489e+00 2.35647e-01 42 2007 2 3.17141e+00 3.66621e-01 50 2007 3 3.44990e+00 6.28459e-01 82 2007 4 2.75850e+00 1.17611e+00 37 2007 5 3.26786e+00 4.18634e-01 23 2007 6 3.91662e+00 0.00000e+00 1 2007 7 3.42997e+00 3.74095e-01 17 2007 8 2.91351e+00 1.97861e-01 16 2007 9 3.65440e+00 3.82730e-01 48 2007 10 2.97988e+00 2.58590e+00 105 2007 11 2.60518e+00 5.30181e-01 112 2007 12 2.62380e+00 1.22647e+00 74 2008 1 9.33734e-01 6.32139e-01 70 2008 2 9.57523e-01 4.54680e-01 99 2008 3 1.04497e+00 5.22144e-01 128 2008 4 1.03605e+00 3.61077e-01 33 2008 5 2.98004e+00 6.55741e-01 17 2008 6 3.32464e+00 3.80306e-01 39 2008 7 3.54782e+00 2.92516e-01 54 2008 8 3.77191e+00 8.61058e-01 39 2008 9 2.63799e+00 7.88536e-01 88 2008 10 3.02173e+00 4.85543e-01 143 2008 11 3.12144e+00 4.85757e-01 177 2008 12 2.00753e+00 9.77006e-01 75 2009 1 1.63726e+00 5.12931e-01 112 2009 2 2.71512e+00 2.71804e-01 96 2009 3 3.34147e+00 1.78047e-01 32 2009 4 -1.59041e+00 1.91215e-01 16 2009 5 2.50408e+00 1.82974e-01 16 2009 6 1.32359e+00 1.49472e-01 13 2009 7 3.46508e+00 0.00000e+00 1 2009 8 1.92278e+00 3.76286e-01 16 2009 9 2.01051e+00 2.08114e+00 46 2009 10 2.81683e+00 1.98253e+00 84 2009 11 1.65164e+00 6.12240e-01 83 2009 12 1.35950e+00 6.54694e-01 46 2010 1 5.72763e-01 9.48624e-01 117 2010 2 2.50388e-02 3.91887e-01 85 2010 3 1.31524e+00 2.56545e-01 48 2010 4 2.50958e+00 4.65368e-01 64 2010 5 2.96897e+00 8.77076e-02 8 2010 6 3.23907e+00 1.63511e+00 47 2010 7 2.97886e+00 7.94920e-01 26 2010 8 nan nan 0 2010 9 3.18913e+00 5.27186e-01 97 2010 10 3.44354e+00 4.55440e-01 181 2010 11 3.15523e+00 3.78364e-01 102 2010 12 2.83028e+00 2.88704e-01 171 2011 1 2.81524e+00 3.67969e-01 139 2011 2 2.29026e+00 4.17571e-01 85 2011 3 2.13252e+00 9.90739e-01 112 2011 4 2.61457e+00 1.84488e-01 32 2011 5 3.72734e+00 1.98375e-01 56 2011 6 4.19549e+00 5.07453e-01 48 2011 7 4.71695e+00 2.51167e+00 32 2011 8 2.50320e+00 4.21731e-01 49 2011 9 2.80070e+00 6.98365e-01 36 2011 10 3.10015e+00 5.08150e-01 141 2011 11 3.64645e+00 3.30720e-01 119 2011 12 3.33757e+00 6.78332e-01 95 2012 1 2.96454e+00 3.06980e-01 118 2012 2 2.50885e+00 1.29192e+00 21 2012 3 3.18834e+00 2.11139e+00 49 2012 4 4.20596e+00 2.58696e-01 14 2012 5 4.06077e+00 3.22362e-01 43 2012 6 4.03926e+00 9.56411e-01 17 2012 7 2.64728e+00 6.82323e+00 31 2012 8 3.43133e+00 9.35530e-02 8 2012 9 2.42229e+00 8.48751e-01 23 2012 10 3.08914e+00 6.85344e-01 155 2012 11 3.35554e+00 4.97932e-01 174 2012 12 3.38036e+00 7.07366e-01 103 2013 1 2.84590e+00 4.26027e-01 78 2013 2 2.07614e+00 9.68054e-01 80 2013 3 6.32538e-01 1.46736e+00 80 2013 4 2.84861e+00 6.90339e-01 38 2013 5 3.30653e+00 5.14180e-01 19 2013 6 3.12669e+00 2.16677e-01 16 2013 7 3.59071e+00 5.68898e-01 28 2013 8 -2.28170e-01 3.56205e+00 64 2013 9 1.92667e+00 1.43685e+00 38 2013 10 2.76433e+00 1.50046e+00 110 2013 11 3.44581e+00 6.64127e-01 134 2013 12 3.05034e+00 7.25043e-01 90 2014 1 1.94542e+00 4.45641e-01 70 2014 2 2.92842e+00 5.69404e-01 75 2014 3 1.65835e+00 1.06346e+00 40 2014 4 2.29302e-01 2.45892e-01 32 2014 5 -8.72985e-02 3.13961e-01 5 2014 6 1.06838e+00 4.27484e-01 16 2014 7 9.97043e-01 4.33997e-01 27 2014 8 3.26428e+00 4.33672e-01 16 2014 9 3.72884e+00 7.39473e-01 40 2014 10 3.91698e+00 1.18169e+00 165 2014 11 2.82804e+00 4.24102e-01 160 2014 12 3.32579e+00 4.65131e-01 96 2015 1 2.56649e+00 8.92503e-01 147 2015 2 2.60753e+00 6.51763e-01 104 2015 3 3.66941e+00 5.06081e-01 60 2015 4 3.53487e+00 4.55480e-01 16 2015 5 1.01504e+00 3.40220e-01 5 2015 6 3.04660e+00 2.35989e-01 24 2015 7 3.29720e+00 1.44439e-01 23 2015 8 4.01493e+00 9.36424e-01 48 2015 9 4.41496e+00 1.19752e+00 42 2015 10 2.79667e+00 6.60486e-01 95 2015 11 1.17914e+00 1.03038e+00 27 2015 12 2.28533e+00 1.33778e+00 36 2016 1 2.11134e-01 1.23405e+00 100 2016 2 6.61658e-01 5.18743e-01 123 2016 3 1.37675e+00 4.08680e-01 64 2016 4 1.94147e+00 2.13504e+00 34 2016 5 3.29091e+00 7.56719e-01 18 2016 6 4.20852e+00 8.94206e-01 38 2016 7 3.86008e+00 9.38780e-01 37 2016 8 1.73446e+00 3.64919e-01 28 2016 9 3.48492e+00 1.03500e+00 64 2016 10 3.67166e+00 6.08920e-01 151 2016 11 3.56049e+00 4.06775e-01 165 2016 12 3.33849e+00 1.53008e+00 82 2017 1 8.54406e-02 5.46696e-01 88 2017 2 1.08709e+00 5.25419e-01 134 2017 3 2.43310e+00 1.12587e+00 62 2017 4 2.89558e+00 1.53486e+00 51 2017 5 4.50021e+00 1.36312e+00 50 2017 6 3.06491e+00 7.25632e-01 41 2017 7 -8.33993e-01 4.61890e-01 24 2017 8 1.66124e+00 2.45179e-01 32 2017 9 2.62260e+00 1.02248e+00 41 2017 10 2.13619e+00 1.19960e+00 110 2017 11 2.36778e+00 1.11360e+00 124 2017 12 3.21195e+00 3.32872e-01 87 2018 1 2.98348e+00 3.13160e-01 128 2018 2 9.80927e-01 4.82803e+00 47 2018 3 1.92506e+00 4.74237e-01 64 2018 4 3.97784e+00 9.15358e-01 69 2018 5 4.45577e+00 2.41357e-01 16 2018 6 2.09255e+00 7.49132e-01 27 2018 7 2.42704e+00 2.61524e-01 22 2018 8 1.68414e+00 3.56271e+00 32 2018 9 2.58802e+00 2.01801e+00 75 2018 10 3.06975e+00 7.41000e-01 112 2018 11 1.57400e+00 1.01076e+00 34 2018 12 8.77186e-01 4.61159e-01 48 2019 1 -1.09764e-01 1.04471e+00 116 2019 2 2.43222e+00 5.07935e-01 32 2019 3 2.96980e+00 4.25147e-01 46 2019 4 2.80302e+00 7.72331e-01 67 2019 5 2.49270e+00 1.16861e+00 84 2019 6 3.45165e+00 4.62734e-01 19 2019 7 3.53295e+00 1.23907e-01 16 2019 8 2.88070e+00 6.20642e-02 15 2019 9 3.65636e+00 5.01726e-01 70 2019 10 3.61964e+00 6.37418e-01 99 2019 11 3.12287e+00 8.41378e-01 89 2019 12 3.12993e+00 9.57138e-01 75 2020 1 1.36349e+00 8.22984e-01 64 2020 2 1.14319e+00 5.45812e-01 100 2020 3 1.31546e+00 8.55095e-01 77 2020 4 2.18038e+00 4.65721e-01 32 2020 5 2.55603e+00 3.71935e-01 32 2020 6 2.88899e+00 5.42136e-01 35 2020 7 3.48387e+00 2.96644e-01 42 2020 8 4.92224e+00 2.29739e-01 23 2020 9 4.45039e-01 2.06454e+00 32 2020 10 2.11412e+00 1.95948e+00 88 2020 11 2.72768e+00 4.91246e-01 103 2020 12 2.62676e+00 1.11724e+00 130 2021 1 2.40397e+00 4.79152e-01 74 2021 2 2.38873e+00 9.40780e-01 113 2021 3 2.63894e+00 7.18853e-01 87 2021 4 1.07410e+00 8.95980e-01 62 2021 5 2.03550e+00 9.26756e-01 48 2021 6 5.48133e+00 4.78227e-01 12 2021 7 4.76228e+00 4.10511e-01 4 2021 8 2.95449e+00 4.69448e-01 19 2021 9 1.64544e+00 1.27773e+00 30 2021 10 3.86089e-01 1.41694e+00 90 2021 11 2.44141e+00 6.68758e-01 125 2021 12 2.71124e+00 8.96886e-01 70 2022 1 2.33458e+00 3.83598e-01 132 2022 2 2.29686e+00 5.82527e-01 84 2022 3 3.02303e+00 7.66464e-01 105 2022 4 1.39445e+00 7.51713e-01 32 2022 5 2.67002e+00 9.21647e-01 56 2022 6 3.96382e+00 1.28851e+00 48 2022 7 4.84018e+00 2.26892e+00 58 2022 8 2.48964e+00 5.67713e-01 28 2022 9 2.80246e+00 4.51239e-01 109 2022 10 3.69482e+00 7.63483e-01 197 2022 11 4.15642e+00 1.12838e+00 126 2022 12 3.05616e+00 1.06086e+00 114 2023 1 2.56502e+00 1.00936e+00 157 2023 2 2.24451e+00 1.31119e+00 115 2023 3 2.29906e+00 4.97264e-01 25 2023 4 2.79122e+00 6.11539e-01 36 2023 5 4.01999e+00 3.08763e-01 48 2023 6 3.04680e+00 7.80249e-01 31 2023 7 2.57389e+00 1.18686e+00 42 2023 8 3.39031e+00 5.34180e-01 67 2023 9 4.70063e+00 1.81173e+00 43 2023 10 4.06961e+00 7.66720e-01 168 2023 11 3.46446e+00 5.33223e-01 118 2023 12 3.19288e+00 3.63324e-01 80 2024 1 3.09788e+00 9.22852e-01 76 2024 2 1.79843e+00 1.51864e+00 50 2024 3 2.57213e+00 1.52952e+00 53 2024 4 nan nan 0