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 6.17282e+01 6.67984e-01 44 2002 8 5.68462e+01 6.08088e-01 64 2002 9 5.04517e+01 2.22915e+00 64 2002 10 4.31384e+01 2.13865e+00 127 2002 11 3.33298e+01 2.03189e+00 206 2002 12 2.92783e+01 3.85626e-01 172 2003 1 3.15164e+01 1.67217e+00 214 2003 2 3.94256e+01 2.45280e+00 148 2003 3 nan nan 0 2003 4 5.74380e+01 1.08984e+00 24 2003 5 6.29215e+01 2.06210e-03 16 2003 6 6.31983e+01 7.43446e-02 29 2003 7 nan nan 0 2003 8 nan nan 0 2003 9 5.12887e+01 2.31781e+00 65 2003 10 4.09797e+01 2.72218e+00 185 2003 11 3.41665e+01 2.01225e+00 159 2003 12 2.92645e+01 3.84699e-01 182 2004 1 3.13417e+01 1.23474e+00 120 2004 2 4.11179e+01 2.17562e+00 80 2004 3 4.86440e+01 2.38440e+00 72 2004 4 5.75054e+01 2.09710e+00 94 2004 5 6.20759e+01 9.51532e-01 67 2004 6 6.29710e+01 4.76151e-02 80 2004 7 6.18959e+01 8.33488e-01 97 2004 8 5.68030e+01 8.09972e-01 48 2004 9 4.93934e+01 3.41853e+00 23 2004 10 4.51648e+01 1.69713e+00 24 2004 11 3.21250e+01 1.94074e+00 58 2004 12 2.89543e+01 6.23778e-02 60 2005 1 3.22475e+01 1.69704e+00 135 2005 2 3.90981e+01 2.08363e+00 112 2005 3 4.77173e+01 2.48607e+00 128 2005 4 nan nan 0 2005 5 6.19058e+01 5.10761e-01 25 2005 6 6.30075e+01 1.80795e-01 61 2005 7 6.25220e+01 3.33239e-01 46 2005 8 5.77496e+01 6.05068e-03 16 2005 9 4.89414e+01 2.31246e+00 64 2005 10 4.18360e+01 2.54859e+00 216 2005 11 3.40116e+01 1.93633e+00 236 2005 12 2.94034e+01 4.98673e-01 207 2006 1 3.17877e+01 1.88078e+00 174 2006 2 3.88069e+01 2.12766e+00 157 2006 3 4.88102e+01 3.12443e+00 212 2006 4 5.63862e+01 2.24188e+00 136 2006 5 6.18382e+01 8.07020e-01 146 2006 6 6.30972e+01 4.65238e-02 52 2006 7 6.23300e+01 6.03782e-01 19 2006 8 5.79733e+01 1.62349e+00 72 2006 9 4.96273e+01 2.37298e+00 123 2006 10 4.09862e+01 2.85276e+00 150 2006 11 3.37631e+01 1.94935e+00 253 2006 12 2.92921e+01 3.38555e-01 133 2007 1 3.22116e+01 2.20194e+00 96 2007 2 4.02489e+01 2.33345e+00 221 2007 3 4.76915e+01 1.97126e+00 177 2007 4 5.76324e+01 1.95898e+00 98 2007 5 6.08270e+01 5.98350e-01 55 2007 6 6.31401e+01 1.83023e-01 48 2007 7 6.10955e+01 4.27732e-01 47 2007 8 5.74474e+01 1.86968e+00 45 2007 9 4.94017e+01 2.12197e+00 124 2007 10 4.33954e+01 2.05946e+00 107 2007 11 3.38791e+01 2.04929e+00 243 2007 12 2.94487e+01 4.48368e-01 112 2008 1 3.15350e+01 2.07383e+00 176 2008 2 3.94611e+01 2.95594e+00 258 2008 3 4.94474e+01 3.06238e+00 207 2008 4 5.72195e+01 1.91709e+00 101 2008 5 6.21942e+01 7.26676e-01 111 2008 6 6.31830e+01 2.19727e-01 71 2008 7 6.22132e+01 3.92675e-01 32 2008 8 5.95338e+01 4.83915e-02 18 2008 9 5.06697e+01 1.29356e+00 44 2008 10 4.14026e+01 3.09778e+00 154 2008 11 3.32087e+01 1.55584e+00 195 2008 12 2.94990e+01 4.98876e-01 188 2009 1 3.22421e+01 1.85792e+00 175 2009 2 3.94251e+01 2.43177e+00 224 2009 3 4.73546e+01 1.97404e+00 147 2009 4 5.47908e+01 3.09622e-01 48 2009 5 6.25680e+01 0.00000e+00 1 2009 6 6.28885e+01 1.80238e-03 16 2009 7 6.26043e+01 4.51320e-01 64 2009 8 5.77700e+01 1.54060e+00 75 2009 9 5.02558e+01 1.67666e+00 95 2009 10 4.14173e+01 2.18968e+00 128 2009 11 3.26531e+01 1.69189e+00 104 2009 12 2.95776e+01 3.38895e-01 32 2010 1 3.14211e+01 1.76254e+00 149 2010 2 4.26582e+01 1.29364e+00 37 2010 3 4.76942e+01 3.00338e+00 147 2010 4 5.61887e+01 8.14436e-01 38 2010 5 6.16983e+01 7.46315e-01 46 2010 6 6.30401e+01 8.66080e-02 32 2010 7 6.09881e+01 4.98080e-01 44 2010 8 5.73154e+01 7.95940e-03 16 2010 9 5.08332e+01 2.43649e+00 103 2010 10 4.19265e+01 2.74577e+00 263 2010 11 3.37614e+01 2.08600e+00 282 2010 12 2.95005e+01 4.83932e-01 224 2011 1 3.22140e+01 1.96837e+00 176 2011 2 4.01474e+01 1.27151e+00 148 2011 3 4.87093e+01 2.16079e+00 183 2011 4 5.62783e+01 1.80550e+00 128 2011 5 6.21008e+01 4.92003e-01 97 2011 6 6.31030e+01 1.03965e-01 48 2011 7 6.16560e+01 8.76267e-01 75 2011 8 5.71415e+01 1.05377e+00 94 2011 9 5.08913e+01 2.39164e+00 128 2011 10 4.21795e+01 2.73680e+00 295 2011 11 3.39139e+01 2.20294e+00 212 2011 12 2.94599e+01 5.31949e-01 208 2012 1 3.15128e+01 1.86215e+00 260 2012 2 3.96858e+01 1.67007e+00 64 2012 3 4.95139e+01 2.43138e+00 193 2012 4 5.74568e+01 1.95149e+00 154 2012 5 6.13471e+01 8.81261e-01 89 2012 6 6.31720e+01 0.00000e+00 3 2012 7 6.22560e+01 0.00000e+00 2 2012 8 nan nan 0 2012 9 nan nan 0 2012 10 3.76403e+01 2.43619e-03 16 2012 11 3.38560e+01 2.26612e+00 216 2012 12 2.94647e+01 3.50462e-01 144 2013 1 3.31320e+01 1.25477e+00 112 2013 2 3.91538e+01 2.53289e+00 112 2013 3 4.60508e+01 1.36048e+00 87 2013 4 5.90270e+01 1.29029e-03 12 2013 5 6.26608e+01 7.46487e-03 13 2013 6 6.30320e+01 6.12348e-03 16 2013 7 nan nan 0 2013 8 nan nan 0 2013 9 5.12090e+01 3.60622e-03 8 2013 10 4.09877e+01 3.01650e+00 80 2013 11 3.43805e+01 2.03721e+00 119 2013 12 2.91326e+01 3.33854e-01 160 2014 1 3.19119e+01 1.09680e+00 73 2014 2 4.05694e+01 1.81070e+00 132 2014 3 4.82231e+01 1.89266e+00 128 2014 4 5.90386e+01 1.21240e-03 13 2014 5 nan nan 0 2014 6 6.31437e+01 4.96638e-02 20 2014 7 6.18421e+01 7.04292e-01 94 2014 8 5.75227e+01 1.75915e+00 124 2014 9 5.15690e+01 2.17045e+00 97 2014 10 4.16509e+01 2.56316e+00 302 2014 11 3.34063e+01 2.10624e+00 212 2014 12 2.94014e+01 3.03643e-01 204 2015 1 3.28067e+01 1.32285e+00 127 2015 2 3.94111e+01 1.69839e+00 97 2015 3 5.04104e+01 2.41373e+00 41 2015 4 5.48285e+01 4.24263e-01 20 2015 5 6.21510e+01 6.41311e-01 69 2015 6 6.30245e+01 1.77796e-01 95 2015 7 6.20478e+01 3.55912e-01 32 2015 8 5.78146e+01 1.49176e+00 81 2015 9 5.20866e+01 2.16598e+00 96 2015 10 4.16472e+01 2.13908e+00 163 2015 11 3.30578e+01 2.02481e+00 143 2015 12 2.94342e+01 3.05350e-01 100 2016 1 3.22910e+01 1.21554e+00 201 2016 2 3.96283e+01 2.44420e+00 286 2016 3 4.79020e+01 2.86261e+00 161 2016 4 5.72594e+01 1.73042e+00 51 2016 5 6.23933e+01 6.42116e-01 53 2016 6 6.29972e+01 1.58513e-01 92 2016 7 6.18129e+01 8.38631e-01 138 2016 8 5.73754e+01 7.97532e-01 87 2016 9 4.99136e+01 2.50113e+00 130 2016 10 4.18580e+01 2.67563e+00 146 2016 11 3.38766e+01 1.93482e+00 160 2016 12 2.93179e+01 4.61677e-01 175 2017 1 3.17085e+01 1.84607e+00 163 2017 2 3.97741e+01 2.90576e+00 186 2017 3 4.90496e+01 2.55885e+00 192 2017 4 5.67597e+01 1.90715e+00 125 2017 5 6.16622e+01 9.27776e-01 76 2017 6 nan nan 0 2017 7 6.23355e+01 3.20471e-01 48 2017 8 5.73030e+01 1.26661e+00 72 2017 9 5.00860e+01 2.61312e+00 69 2017 10 4.08116e+01 2.49278e+00 234 2017 11 3.34843e+01 2.14131e+00 259 2017 12 2.92858e+01 3.24805e-01 176 2018 1 3.16544e+01 1.78652e+00 240 2018 2 4.12277e+01 2.16676e+00 128 2018 3 4.81894e+01 2.71895e+00 157 2018 4 5.78188e+01 1.89299e+00 82 2018 5 6.15294e+01 9.50334e-01 74 2018 6 6.30690e+01 8.28805e-02 42 2018 7 nan nan 0 2018 8 5.49109e+01 7.99037e-03 14 2018 9 4.94559e+01 1.67984e+00 106 2018 10 4.15539e+01 2.73323e+00 282 2018 11 3.31397e+01 1.13567e+00 76 2018 12 2.96200e+01 3.40967e-01 49 2019 1 3.41048e+01 1.60084e-03 5 2019 2 4.29154e+01 3.92038e-01 22 2019 3 4.93692e+01 2.01047e+00 63 2019 4 5.73872e+01 1.44595e+00 56 2019 5 6.18113e+01 8.05253e-01 121 2019 6 6.30165e+01 1.43780e-01 55 2019 7 6.16823e+01 1.09012e+00 36 2019 8 5.76260e+01 8.02336e-01 62 2019 9 5.12567e+01 2.08719e+00 65 2019 10 4.22347e+01 2.51005e+00 74 2019 11 3.37622e+01 1.93465e+00 143 2019 12 2.95081e+01 5.04911e-01 80 2020 1 3.14943e+01 1.59648e+00 160 2020 2 4.01763e+01 3.22799e+00 161 2020 3 4.84826e+01 2.36446e+00 166 2020 4 5.64383e+01 2.70532e+00 39 2020 5 6.09412e+01 7.33389e-01 93 2020 6 6.30312e+01 1.93245e-01 30 2020 7 6.16752e+01 2.14292e-01 30 2020 8 5.99666e+01 3.35571e-01 14 2020 9 5.18238e+01 1.39841e+00 38 2020 10 3.94956e+01 2.03969e+00 50 2020 11 3.21144e+01 1.09568e+00 80 2020 12 2.93220e+01 3.86964e-01 130 2021 1 3.06286e+01 1.44788e+00 51 2021 2 4.06214e+01 1.78352e+00 55 2021 3 4.94352e+01 2.06760e+00 10 2021 4 5.68570e+01 1.72884e+00 31 2021 5 6.24448e+01 2.04825e-01 26 2021 6 6.29756e+01 5.28878e-02 27 2021 7 nan nan 0 2021 8 5.55547e+01 4.17630e-03 16 2021 9 4.98930e+01 9.99451e-04 16 2021 10 4.12366e+01 7.69572e-01 24 2021 11 3.32110e+01 1.74373e+00 120 2021 12 2.91239e+01 3.15130e-01 115 2022 1 3.23796e+01 1.70154e+00 191 2022 2 4.04266e+01 2.53998e+00 145 2022 3 4.65004e+01 1.61810e+00 96 2022 4 nan nan 0 2022 5 6.16275e+01 2.35413e-01 19 2022 6 6.30069e+01 1.65196e-01 31 2022 7 6.09275e+01 3.51983e-01 49 2022 8 5.81316e+01 1.46778e+00 100 2022 9 5.08773e+01 3.52639e+00 29 2022 10 4.09517e+01 2.69833e+00 181 2022 11 3.49835e+01 1.64851e+00 90 2022 12 2.93193e+01 4.79347e-01 160 2023 1 3.16751e+01 1.53556e+00 208 2023 2 3.88806e+01 2.46007e+00 137 2023 3 nan nan 0 2023 4 nan nan 0 2023 5 6.05470e+01 2.50797e-01 48 2023 6 6.30704e+01 1.91709e-01 64 2023 7 6.10785e+01 5.93780e-03 16 2023 8 5.90759e+01 5.86670e-01 51 2023 9 nan nan 0 2023 10 4.09900e+01 1.76477e+00 63 2023 11 3.35623e+01 2.26620e+00 117 2023 12 2.93412e+01 2.90429e-03 16 2024 1 nan nan 0 2024 2 4.09028e+01 2.08149e+00 102 2024 3 4.86294e+01 2.86242e+00 68 2024 4 nan nan 0