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 1.12317e+00 0.00000e+00 4 2002 8 nan nan 0 2002 9 2.38117e+00 2.33316e-01 131 2002 10 2.32836e+00 2.36606e-01 71 2002 11 2.08818e+00 2.04558e-01 128 2002 12 3.61145e+00 1.30528e+00 835 2003 1 2.33115e+00 4.54449e-01 745 2003 2 2.02839e+00 3.69077e-01 1024 2003 3 1.47834e+00 1.22708e-01 384 2003 4 1.60558e+00 3.21590e-01 139 2003 5 2.21853e+00 2.75222e-01 66 2003 6 7.45134e-01 0.00000e+00 2 2003 7 1.97211e+00 5.68756e-01 50 2003 8 nan nan 0 2003 9 2.09090e+00 6.78568e-01 250 2003 10 2.45549e+00 7.49409e-01 346 2003 11 2.88744e+00 3.24439e-01 828 2003 12 2.13099e+00 3.64272e-01 491 2004 1 2.01340e+00 1.27799e-01 183 2004 2 1.47269e+00 1.76802e-02 29 2004 3 1.24857e+00 6.51663e-02 123 2004 4 8.07878e-01 4.14912e-02 84 2004 5 nan nan 0 2004 6 5.58644e-01 3.60146e-01 41 2004 7 1.17778e+00 0.00000e+00 2 2004 8 1.86376e+00 9.58458e-02 106 2004 9 2.48693e+00 1.51041e-01 110 2004 10 2.16133e+00 1.95788e-01 653 2004 11 3.14690e+00 8.27633e-01 896 2004 12 3.33651e+00 9.96797e-01 355 2005 1 4.02172e+00 1.54246e+00 852 2005 2 1.94450e+00 1.79442e-01 339 2005 3 1.23118e+00 1.42806e-01 141 2005 4 1.01587e+00 1.94042e-02 74 2005 5 1.34704e+00 1.39605e-01 206 2005 6 1.69202e+00 6.66871e-02 33 2005 7 1.66478e+00 3.20395e-01 20 2005 8 2.03491e+00 2.07898e-01 39 2005 9 1.75809e+00 6.96563e-01 101 2005 10 2.46854e+00 1.07743e-01 64 2005 11 4.13223e+00 6.21567e-01 698 2005 12 2.62168e+00 4.64592e-01 851 2006 1 2.38232e+00 3.66939e-01 576 2006 2 2.08295e+00 1.98908e-01 448 2006 3 1.59406e+00 1.71559e-01 240 2006 4 1.84615e+00 2.19130e-01 304 2006 5 1.44429e+00 1.06961e-01 192 2006 6 9.38377e-01 1.40478e-01 19 2006 7 1.49378e+00 1.32256e-01 101 2006 8 1.79835e+00 1.00891e-01 16 2006 9 3.01965e+00 1.78669e+00 12 2006 10 2.52022e+00 2.80037e-01 64 2006 11 2.81243e+00 4.02960e-01 546 2006 12 2.64460e+00 4.11447e-01 455 2007 1 2.20828e+00 3.01117e-01 874 2007 2 1.66444e+00 4.22069e-02 64 2007 3 1.13335e+00 1.60637e-01 40 2007 4 nan nan 0 2007 5 1.06959e+00 1.01750e-01 55 2007 6 2.09697e+00 9.64018e-02 118 2007 7 2.02903e+00 2.53648e-01 242 2007 8 2.61113e+00 4.42271e-01 416 2007 9 2.50423e+00 1.79872e-01 341 2007 10 2.09897e+00 1.62124e-01 244 2007 11 2.23993e+00 4.78084e-01 862 2007 12 2.54407e+00 4.88662e-01 1035 2008 1 3.12881e+00 8.49511e-01 667 2008 2 1.67621e+00 3.47827e-01 259 2008 3 1.02027e+00 1.73133e-01 67 2008 4 nan nan 0 2008 5 2.72929e+00 2.75813e-01 319 2008 6 3.11554e+00 7.60549e-01 172 2008 7 2.58362e+00 4.50981e-01 132 2008 8 2.57695e+00 2.68175e-01 180 2008 9 2.16006e+00 7.90385e-02 42 2008 10 2.35032e+00 1.95241e-01 181 2008 11 3.55647e+00 9.23229e-01 1068 2008 12 2.58345e+00 5.41632e-01 791 2009 1 2.20700e+00 2.74504e-01 337 2009 2 1.78795e+00 1.96583e-01 97 2009 3 6.68072e-01 2.87191e-03 9 2009 4 1.01667e+00 1.12266e-01 128 2009 5 1.14243e+00 1.48540e-01 128 2009 6 8.41538e-01 1.19002e-01 57 2009 7 4.57725e+00 2.12442e+00 87 2009 8 3.42455e+00 5.87735e-01 294 2009 9 2.33601e+00 2.11701e-01 345 2009 10 2.33457e+00 3.06311e-01 479 2009 11 3.61766e+00 8.11457e-01 549 2009 12 2.62256e+00 2.48464e-01 739 2010 1 2.01463e+00 9.92021e-03 3 2010 2 1.91600e+00 1.39542e-02 7 2010 3 2.38321e+00 2.37526e-02 64 2010 4 1.14701e+00 2.98837e-02 40 2010 5 1.22105e+00 9.58082e-02 88 2010 6 2.68877e+00 2.73116e-01 31 2010 7 3.06656e+00 4.09659e-01 573 2010 8 2.91637e+00 4.65940e-02 64 2010 9 1.72102e+00 4.88308e-01 18 2010 10 2.70029e+00 5.27013e-01 813 2010 11 2.88935e+00 6.47456e-01 876 2010 12 2.08542e+00 1.71903e-01 448 2011 1 nan nan 0 2011 2 nan nan 0 2011 3 1.01843e+00 2.02990e-01 73 2011 4 9.71443e-01 5.35329e-02 178 2011 5 9.78277e-01 1.15839e-01 149 2011 6 9.80386e-01 4.43681e-02 85 2011 7 1.20353e+00 1.58569e-02 4 2011 8 nan nan 0 2011 9 6.08294e-01 0.00000e+00 2 2011 10 2.41598e+00 4.50015e-01 145 2011 11 2.65140e+00 5.46341e-01 915 2011 12 2.37527e+00 3.54760e-01 1229 2012 1 2.63522e+00 3.57571e-01 850 2012 2 2.66089e+00 6.66704e-01 467 2012 3 2.45228e+00 7.77944e-01 585 2012 4 1.37902e+00 8.79748e-02 127 2012 5 1.78423e+00 7.35224e-02 128 2012 6 2.68353e+00 1.92268e-01 66 2012 7 8.82801e-01 1.57154e-01 12 2012 8 nan nan 0 2012 9 2.18167e+00 8.03172e-01 189 2012 10 1.87778e+00 3.04952e-01 67 2012 11 3.42707e+00 6.59892e-01 900 2012 12 2.85364e+00 4.36229e-01 533 2013 1 2.27024e+00 3.23477e-01 876 2013 2 1.92420e+00 2.67888e-01 343 2013 3 1.23604e+00 0.00000e+00 1 2013 4 9.12781e-01 1.85955e-01 128 2013 5 nan nan 0 2013 6 nan nan 0 2013 7 1.13304e+00 1.77323e-01 11 2013 8 2.27149e+00 9.14789e-02 60 2013 9 nan nan 0 2013 10 1.91737e+00 2.72886e-01 7 2013 11 3.01061e+00 5.97003e-01 670 2013 12 2.03001e+00 2.21630e-01 757 2014 1 2.12657e+00 3.19810e-01 727 2014 2 1.54954e+00 2.26936e-01 603 2014 3 1.09426e+00 3.77168e-01 38 2014 4 1.29912e+00 4.56590e-02 16 2014 5 1.96611e+00 2.53662e-01 198 2014 6 1.95636e+00 2.19696e-01 370 2014 7 2.88247e+00 4.81526e-01 71 2014 8 3.24755e+00 7.80689e-01 536 2014 9 2.37333e+00 2.94186e-02 5 2014 10 2.13740e+00 1.00501e+00 113 2014 11 2.83555e+00 6.72432e-01 883 2014 12 4.09133e+00 1.18423e+00 781 2015 1 2.39998e+00 3.86477e-01 704 2015 2 1.89150e+00 1.00110e-01 316 2015 3 1.52384e+00 3.23821e-01 117 2015 4 1.39953e+00 9.71853e-02 64 2015 5 1.65674e+00 1.11056e-01 68 2015 6 1.50446e+00 1.05794e-01 83 2015 7 1.93907e+00 1.36996e-01 192 2015 8 2.57610e+00 4.97495e-01 82 2015 9 2.23073e+00 3.06480e-01 168 2015 10 2.47263e+00 2.65360e-01 434 2015 11 2.57762e+00 7.06469e-01 799 2015 12 3.51093e+00 9.25634e-01 595 2016 1 2.58842e+00 1.14593e-01 67 2016 2 1.87822e+00 2.95423e-01 429 2016 3 1.59481e+00 2.01694e-01 192 2016 4 1.81503e+00 8.06347e-02 204 2016 5 2.25782e+00 3.49964e-01 644 2016 6 2.29971e+00 3.36846e-01 413 2016 7 2.65876e+00 6.19568e-01 299 2016 8 2.24064e+00 4.03142e-01 109 2016 9 2.31767e+00 2.09750e-01 71 2016 10 2.92327e+00 7.82009e-01 578 2016 11 3.51390e+00 1.03889e+00 1079 2016 12 1.85194e+00 2.28122e-01 721 2017 1 1.88113e+00 4.46738e-01 560 2017 2 1.79105e+00 8.79977e-02 88 2017 3 1.56332e+00 3.70743e-01 191 2017 4 8.84221e-01 1.08776e-02 23 2017 5 2.45871e+00 4.43018e-01 450 2017 6 nan nan 0 2017 7 9.27075e-01 1.42169e-02 30 2017 8 2.48583e+00 8.47478e-01 249 2017 9 2.47473e+00 5.82552e-01 271 2017 10 2.37733e+00 3.33067e-01 450 2017 11 3.55116e+00 8.51054e-01 963 2017 12 3.54684e+00 5.61906e-01 1269 2018 1 2.27632e+00 3.73585e-02 192 2018 2 1.99372e+00 4.42567e-01 972 2018 3 1.62274e+00 2.76397e-01 106 2018 4 1.17224e+00 1.87985e-02 65 2018 5 nan nan 0 2018 6 8.07592e-01 6.44452e-02 51 2018 7 8.60621e-01 3.53448e-01 83 2018 8 nan nan 0 2018 9 nan nan 0 2018 10 1.99519e+00 1.06890e-01 135 2018 11 1.90889e+00 1.88033e-01 295 2018 12 2.67471e+00 4.19180e-01 640 2019 1 2.42767e+00 5.13265e-01 691 2019 2 1.84485e+00 2.28929e-01 1031 2019 3 2.66209e+00 8.41028e-01 651 2019 4 3.23711e+00 5.25087e-01 721 2019 5 1.66797e+00 4.82205e-01 202 2019 6 9.98251e-01 1.04551e-01 132 2019 7 9.90530e-01 2.88677e-02 43 2019 8 2.06327e+00 3.79531e-02 6 2019 9 2.26899e+00 7.84762e-01 267 2019 10 2.01561e+00 3.71133e-01 385 2019 11 3.44975e+00 1.31929e+00 540 2019 12 3.32069e+00 9.66451e-01 735 2020 1 3.14154e+00 8.44407e-01 754 2020 2 2.04450e+00 5.01726e-01 677 2020 3 1.27802e+00 2.66889e-01 211 2020 4 1.11613e+00 2.27066e-02 65 2020 5 1.35867e+00 6.37391e-02 98 2020 6 2.28735e+00 5.79978e-01 229 2020 7 1.88602e+00 2.04660e-01 126 2020 8 1.96071e+00 6.07042e-02 137 2020 9 1.45863e+00 1.20410e-01 66 2020 10 2.43711e+00 1.76728e-01 106 2020 11 4.05759e+00 2.49251e+00 520 2020 12 3.16048e+00 5.80877e-01 1000 2021 1 3.06912e+00 5.94270e-01 771 2021 2 2.81066e+00 5.44077e-01 665 2021 3 2.44029e+00 8.32827e-01 598 2021 4 2.17775e+00 4.26709e-01 462 2021 5 1.77411e+00 1.51896e-01 231 2021 6 2.02954e+00 2.99551e-01 160 2021 7 2.19186e+00 3.60627e-01 487 2021 8 2.53703e+00 3.58204e-01 404 2021 9 2.34194e+00 5.86197e-01 373 2021 10 1.96115e+00 1.75657e-01 691 2021 11 3.72408e+00 9.64634e-01 468 2021 12 3.43270e+00 1.28845e+00 943 2022 1 2.32719e+00 1.74896e-01 349 2022 2 1.93004e+00 2.30689e-01 908 2022 3 1.45161e+00 1.62241e-01 277 2022 4 1.73683e+00 1.50548e-01 76 2022 5 1.39218e+00 1.02270e-01 280 2022 6 2.69375e+00 7.23854e-01 172 2022 7 1.64158e+00 4.09750e-01 106 2022 8 1.52272e+00 2.74093e-01 90 2022 9 3.78013e+00 1.15140e+00 256 2022 10 3.71544e+00 8.92741e-01 995 2022 11 3.40662e+00 6.51237e-01 891 2022 12 3.52511e+00 6.04393e-01 973 2023 1 2.68627e+00 6.39375e-01 868 2023 2 2.11894e+00 3.53828e-01 1024 2023 3 2.95581e+00 8.27151e-01 391 2023 4 1.88633e+00 4.13092e-01 174 2023 5 1.57499e+00 1.11914e-01 132 2023 6 1.20782e+00 6.27908e-02 34 2023 7 2.02476e+00 4.14869e-01 42 2023 8 nan nan 0 2023 9 nan nan 0 2023 10 nan nan 0 2023 11 3.00835e+00 5.71807e-01 777 2023 12 2.91169e+00 3.36129e-01 302 2024 1 2.14209e+00 1.16304e-01 265 2024 2 1.88629e+00 4.51691e-01 272 2024 3 7.39314e-01 1.29388e-02 64 2024 4 1.48168e+00 1.34378e-02 5