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 3.32049e+00 1.41276e-01 16 2002 8 1.50776e+00 1.71062e-01 16 2002 9 1.27147e+00 1.34227e+00 39 2002 10 9.29829e-01 5.71609e-01 51 2002 11 1.93932e+00 5.14847e-01 167 2002 12 2.03689e+00 6.42707e-01 130 2003 1 2.09052e+00 6.72066e-01 195 2003 2 2.82065e+00 4.65869e-01 96 2003 3 -2.35686e-01 1.17365e+00 34 2003 4 1.34911e+00 9.65447e-01 127 2003 5 2.82097e+00 3.02622e-01 32 2003 6 2.33499e+00 3.59007e-01 52 2003 7 1.88819e+00 2.87426e-01 32 2003 8 nan nan 0 2003 9 8.25536e-01 7.34637e-01 63 2003 10 1.95586e+00 5.70588e-01 147 2003 11 1.78937e+00 5.88275e-01 177 2003 12 2.23147e+00 3.66982e-01 134 2004 1 3.17309e+00 4.52369e-01 90 2004 2 8.43889e-01 1.58422e+00 48 2004 3 1.62465e+00 7.01177e-01 161 2004 4 2.68371e+00 2.26946e-01 84 2004 5 3.06816e+00 2.10897e-01 60 2004 6 3.00913e+00 3.94129e-01 24 2004 7 2.94279e+00 3.76993e-01 18 2004 8 2.61132e+00 2.01544e-01 33 2004 9 1.52560e+00 9.29246e-01 62 2004 10 1.40612e+00 6.48579e-01 85 2004 11 1.73748e+00 7.58879e-01 99 2004 12 2.07165e+00 3.89358e-01 98 2005 1 1.97131e+00 6.73817e-01 104 2005 2 2.55738e+00 4.08701e-01 126 2005 3 1.67977e+00 8.79705e-01 146 2005 4 -2.01300e-01 5.95525e-01 54 2005 5 2.04737e+00 3.96650e-01 55 2005 6 2.94776e+00 4.14258e-01 39 2005 7 7.41551e-01 8.70853e-01 26 2005 8 1.44082e+00 7.44232e-01 54 2005 9 3.57373e+00 2.58779e-01 15 2005 10 2.87178e+00 4.73673e-01 168 2005 11 3.00861e+00 5.12985e-01 114 2005 12 2.61000e+00 4.32597e-01 97 2006 1 1.79886e+00 6.06173e-01 76 2006 2 2.23336e+00 5.32083e-01 159 2006 3 2.25063e+00 6.01480e-01 168 2006 4 2.86676e+00 3.92583e-01 100 2006 5 2.77117e+00 3.35022e-01 90 2006 6 2.72815e+00 1.46359e-01 15 2006 7 2.96046e+00 2.27212e-01 47 2006 8 3.13469e+00 4.21451e-01 54 2006 9 2.67841e+00 6.20308e-01 105 2006 10 2.80104e+00 4.23863e-01 161 2006 11 2.85441e+00 3.85363e-01 173 2006 12 1.98946e+00 4.13807e-01 76 2007 1 1.17912e+00 8.25824e-01 76 2007 2 1.80222e+00 7.91319e-01 117 2007 3 2.73721e+00 4.44521e-01 181 2007 4 2.66853e+00 6.18711e-01 133 2007 5 3.12414e+00 5.16727e-01 33 2007 6 3.16013e+00 1.48649e-01 10 2007 7 3.30271e+00 5.47082e-01 62 2007 8 3.06732e+00 4.54230e-01 51 2007 9 1.75899e+00 5.36352e-01 72 2007 10 2.28036e+00 2.28064e-01 90 2007 11 2.43113e+00 3.68924e-01 170 2007 12 2.09522e+00 4.37114e-01 54 2008 1 2.54613e+00 7.16278e-01 142 2008 2 2.54972e+00 7.03259e-01 181 2008 3 1.22130e+00 6.73587e-01 145 2008 4 2.05385e+00 8.02272e-01 93 2008 5 2.53774e+00 4.13971e-01 132 2008 6 3.02016e+00 5.44752e-01 39 2008 7 3.02232e+00 1.77905e-01 24 2008 8 2.10902e+00 7.90580e-02 4 2008 9 1.42278e+00 6.10865e-01 93 2008 10 1.88925e+00 5.86083e-01 198 2008 11 2.53440e+00 6.36494e-01 163 2008 12 2.01784e+00 6.51586e-01 129 2009 1 2.06603e+00 8.03326e-01 143 2009 2 2.60282e+00 4.96979e-01 160 2009 3 2.90002e+00 6.64288e-01 131 2009 4 1.28739e+00 1.87929e-01 34 2009 5 2.32718e+00 1.40812e-01 72 2009 6 nan nan 0 2009 7 2.87192e+00 1.30371e-01 7 2009 8 2.77617e+00 4.19575e-01 37 2009 9 1.86068e+00 8.25309e-01 40 2009 10 1.59253e+00 1.04337e+00 143 2009 11 2.15444e+00 4.94902e-01 126 2009 12 5.30317e-01 1.37906e+00 37 2010 1 9.74957e-01 5.33180e-01 93 2010 2 7.70801e-01 7.98500e-01 72 2010 3 1.74045e+00 4.84245e-01 106 2010 4 1.88436e+00 5.43629e-01 102 2010 5 2.23251e+00 1.28145e+00 64 2010 6 2.89379e+00 3.21199e-01 67 2010 7 3.01690e+00 8.45553e-02 9 2010 8 nan nan 0 2010 9 2.11796e+00 8.01055e-01 130 2010 10 2.29699e+00 5.36130e-01 205 2010 11 2.30684e+00 4.32311e-01 224 2010 12 2.42572e+00 4.85612e-01 172 2011 1 2.94965e+00 4.53346e-01 130 2011 2 2.59602e+00 6.29683e-01 119 2011 3 2.81037e+00 7.48795e-01 112 2011 4 2.75921e+00 2.05717e-01 124 2011 5 3.18419e+00 2.59437e-01 71 2011 6 2.67647e+00 1.69691e-01 47 2011 7 2.98187e+00 3.35485e-01 60 2011 8 2.67460e+00 1.19749e-01 38 2011 9 2.70174e+00 5.32835e-01 81 2011 10 2.00320e+00 6.77844e-01 232 2011 11 1.99011e+00 6.91918e-01 130 2011 12 3.09782e+00 6.93915e-01 190 2012 1 2.81985e+00 5.09097e-01 166 2012 2 3.40506e+00 4.60447e-01 32 2012 3 2.61707e+00 6.11498e-01 120 2012 4 3.21077e+00 4.09315e-01 78 2012 5 2.81674e+00 3.22772e-01 56 2012 6 2.78404e+00 1.55642e-01 15 2012 7 1.78067e+00 1.39294e+00 47 2012 8 -1.22738e+00 7.25484e-01 15 2012 9 1.05387e+00 8.85938e-01 55 2012 10 1.12374e+00 7.07414e-01 181 2012 11 3.12781e+00 4.44497e-01 137 2012 12 3.57849e+00 3.19375e-01 76 2013 1 2.75485e+00 5.38749e-01 96 2013 2 2.66073e+00 8.75913e-01 85 2013 3 4.01678e-01 8.56443e-01 82 2013 4 1.21335e+00 4.78181e-01 31 2013 5 2.46018e+00 6.42798e-01 46 2013 6 1.83263e+00 1.18947e-01 16 2013 7 -1.00805e+00 3.16893e-01 5 2013 8 1.28279e+00 7.52478e-01 37 2013 9 1.68987e+00 9.11546e-01 102 2013 10 2.06399e+00 5.52598e-01 130 2013 11 2.57993e+00 5.71256e-01 94 2013 12 2.77282e+00 4.71805e-01 134 2014 1 1.14731e+00 9.10904e-01 94 2014 2 2.78358e+00 9.07274e-01 143 2014 3 1.31591e+00 4.63350e-01 100 2014 4 3.77261e-01 7.98820e-01 50 2014 5 3.91238e-01 1.21192e+00 68 2014 6 2.48847e+00 2.46637e-01 50 2014 7 2.83110e+00 7.37327e-02 28 2014 8 3.43575e+00 3.43737e-01 37 2014 9 3.25456e+00 5.87606e-01 90 2014 10 2.84238e+00 7.26584e-01 238 2014 11 2.65126e+00 6.00279e-01 192 2014 12 1.85901e+00 9.11457e-01 137 2015 1 7.62750e-01 5.79430e-01 118 2015 2 1.10492e+00 8.97132e-01 123 2015 3 2.45625e+00 4.64784e-01 71 2015 4 2.86424e+00 3.62647e-01 40 2015 5 2.80537e+00 4.08077e-01 80 2015 6 3.32926e+00 3.61925e-01 14 2015 7 2.99029e+00 3.86639e-01 26 2015 8 2.56820e+00 4.14703e-01 34 2015 9 2.43237e+00 9.17471e-01 42 2015 10 2.23296e+00 6.14660e-01 144 2015 11 1.31231e+00 1.43891e+00 72 2015 12 1.55603e+00 9.81846e-01 88 2016 1 9.63675e-02 4.06317e-01 60 2016 2 1.16490e+00 5.17876e-01 188 2016 3 1.85950e+00 6.71905e-01 133 2016 4 9.38203e-01 3.23637e-01 44 2016 5 2.52109e+00 4.80392e-01 51 2016 6 3.15148e+00 2.87765e-01 100 2016 7 3.02906e+00 3.09817e-01 127 2016 8 1.06935e+00 6.54013e-01 94 2016 9 2.03233e+00 1.20457e+00 86 2016 10 2.28062e+00 6.33039e-01 234 2016 11 2.50691e+00 7.59922e-01 157 2016 12 3.11994e+00 5.83449e-01 108 2017 1 2.47721e+00 8.62851e-01 127 2017 2 1.69574e+00 7.14937e-01 143 2017 3 2.14459e+00 7.56534e-01 169 2017 4 2.46366e+00 7.61809e-01 76 2017 5 2.84011e+00 6.41701e-01 74 2017 6 2.20906e+00 7.44705e-01 37 2017 7 1.55936e+00 5.39493e-01 35 2017 8 1.77861e+00 4.74967e-01 32 2017 9 2.17994e+00 7.08440e-01 48 2017 10 2.20955e+00 7.05044e-01 193 2017 11 2.83316e+00 4.97740e-01 246 2017 12 3.41796e+00 5.28656e-01 77 2018 1 3.18444e+00 6.33740e-01 175 2018 2 3.15738e+00 5.47322e-01 64 2018 3 2.51042e+00 5.83141e-01 178 2018 4 2.94182e+00 2.52782e-01 119 2018 5 2.94376e+00 4.04894e-01 52 2018 6 2.43496e+00 3.32744e-01 29 2018 7 2.85500e+00 7.16898e-01 15 2018 8 1.83887e+00 1.53515e-01 16 2018 9 1.62738e+00 7.54826e-01 105 2018 10 1.04206e+00 1.19204e+00 150 2018 11 1.84768e+00 3.68919e-01 78 2018 12 1.01324e+00 6.80334e-01 63 2019 1 2.73638e-01 7.12480e-01 100 2019 2 5.71202e-01 7.06712e-01 42 2019 3 1.54440e+00 3.18295e-01 116 2019 4 1.70968e+00 4.58340e-01 80 2019 5 2.63248e+00 3.80363e-01 114 2019 6 2.26913e+00 4.04407e-01 21 2019 7 2.42865e+00 6.24559e-01 75 2019 8 1.94037e+00 7.08082e-01 39 2019 9 1.93984e+00 5.98778e-01 113 2019 10 2.25719e+00 4.60953e-01 131 2019 11 2.35655e+00 2.82606e-01 140 2019 12 1.57877e+00 5.51757e-01 48 2020 1 1.82219e+00 4.94026e-01 84 2020 2 1.24950e+00 1.25426e+00 122 2020 3 7.57034e-01 7.49671e-01 79 2020 4 1.99111e+00 4.02522e-01 64 2020 5 2.19311e+00 5.18607e-01 80 2020 6 1.01697e+00 1.00703e+00 60 2020 7 nan nan 0 2020 8 2.92003e+00 3.07394e-01 30 2020 9 2.36886e+00 5.26068e-01 32 2020 10 1.07315e+00 4.59060e-01 87 2020 11 1.60329e+00 7.81472e-01 162 2020 12 2.75612e+00 4.87011e-01 221 2021 1 1.86118e+00 8.11750e-01 64 2021 2 1.00291e+00 2.49047e-01 80 2021 3 1.20807e+00 5.98582e-01 120 2021 4 2.24380e+00 5.44736e-01 111 2021 5 2.31189e+00 7.00974e-01 130 2021 6 3.07026e+00 2.18662e-01 46 2021 7 1.16094e+00 5.93249e-01 20 2021 8 1.38666e+00 8.44160e-01 68 2021 9 8.46761e-01 6.26159e-01 35 2021 10 1.18795e+00 2.60578e-01 18 2021 11 2.02571e+00 6.14823e-01 240 2021 12 2.68890e+00 3.24466e-01 89 2022 1 1.96241e+00 4.32409e-01 108 2022 2 2.06671e+00 4.87754e-01 118 2022 3 1.40631e+00 9.28849e-01 159 2022 4 1.28708e+00 1.84857e-01 20 2022 5 2.27285e+00 2.51614e-01 33 2022 6 2.23420e+00 4.24244e-01 59 2022 7 2.66755e+00 6.71036e-01 67 2022 8 2.45895e+00 2.18208e-01 36 2022 9 9.28570e-01 1.35076e+00 84 2022 10 2.11041e+00 4.67593e-01 217 2022 11 2.47611e+00 8.81434e-01 137 2022 12 3.15735e+00 7.01556e-01 191 2023 1 2.98903e+00 4.82127e-01 221 2023 2 1.67716e+00 7.32457e-01 138 2023 3 2.09538e+00 6.25431e-01 121 2023 4 2.44404e+00 9.33437e-01 71 2023 5 2.43640e+00 9.33764e-01 60 2023 6 2.39549e+00 3.41358e-01 78 2023 7 2.16131e+00 5.88113e-02 16 2023 8 2.32182e+00 6.14320e-01 60 2023 9 1.24047e+00 6.23922e-01 107 2023 10 1.91074e+00 3.49529e-01 177 2023 11 2.19994e+00 9.14416e-01 112 2023 12 6.83440e-01 9.68263e-01 50 2024 1 1.14567e+00 4.21937e-01 64 2024 2 1.51829e+00 6.07098e-01 144 2024 3 2.06248e+00 5.70437e-01 78 2024 4 nan nan 0