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 1.41990e+00 3.50909e-01 12 2002 8 nan nan 0 2002 9 1.89581e+00 1.60279e-01 16 2002 10 3.27944e+00 2.71482e-01 13 2002 11 2.06724e+00 2.40897e-01 52 2002 12 1.36619e+00 1.93719e-01 58 2003 1 1.27783e+00 1.44411e-01 48 2003 2 1.01796e+00 1.75674e-01 47 2003 3 1.94316e+00 5.57854e-02 7 2003 4 1.94592e+00 1.38302e-01 13 2003 5 nan nan 0 2003 6 nan nan 0 2003 7 nan nan 0 2003 8 nan nan 0 2003 9 1.73492e+00 1.89903e-01 19 2003 10 1.09509e+00 1.90582e-01 114 2003 11 1.05962e+00 2.33023e-01 114 2003 12 1.23008e+00 1.20743e-01 74 2004 1 1.11537e+00 1.81402e-01 13 2004 2 nan nan 0 2004 3 1.62627e+00 2.71400e-01 31 2004 4 1.56200e+00 3.07145e-01 21 2004 5 1.45086e+00 1.97368e-01 31 2004 6 1.37701e+00 8.92044e-02 9 2004 7 1.74507e+00 8.34311e-02 14 2004 8 1.02896e+00 9.94318e-02 8 2004 9 4.04421e+00 0.00000e+00 1 2004 10 1.77645e+00 1.67110e-01 28 2004 11 2.44941e+00 4.92295e-01 52 2004 12 1.82038e+00 2.99769e-01 48 2005 1 1.42124e+00 7.03256e-02 25 2005 2 1.33134e+00 1.44695e-01 37 2005 3 1.32928e+00 2.20458e-01 84 2005 4 2.52600e+00 4.65582e-02 4 2005 5 1.50310e+00 2.92037e-01 7 2005 6 1.65314e+00 6.61203e-01 19 2005 7 2.21182e+00 1.08472e+00 22 2005 8 nan nan 0 2005 9 1.63249e+00 2.10966e-01 14 2005 10 1.14506e+00 1.77903e-01 83 2005 11 9.25530e-01 1.59609e-01 47 2005 12 1.15728e+00 1.63006e-01 48 2006 1 1.32684e+00 3.06515e-01 46 2006 2 1.26626e+00 1.76193e-01 58 2006 3 1.29143e+00 2.82258e-01 33 2006 4 1.11597e+00 8.39023e-02 59 2006 5 1.59433e+00 1.41885e-01 39 2006 6 6.24313e-01 9.91681e-02 25 2006 7 1.01556e+00 1.68780e-01 32 2006 8 nan nan 0 2006 9 1.73168e+00 1.81693e-01 28 2006 10 1.14454e+00 1.29161e-01 97 2006 11 1.28635e+00 2.46048e-01 72 2006 12 1.05644e+00 2.12381e-01 79 2007 1 1.44641e+00 2.67325e-01 48 2007 2 1.22434e+00 3.23228e-01 48 2007 3 1.20402e+00 1.58736e-01 54 2007 4 2.34983e+00 9.52983e-01 30 2007 5 1.77264e+00 7.30702e-01 20 2007 6 nan nan 0 2007 7 nan nan 0 2007 8 1.49948e+00 1.10833e-01 12 2007 9 1.58237e+00 1.99667e-01 16 2007 10 1.69149e+00 5.48105e-01 50 2007 11 1.27698e+00 2.93475e-01 67 2007 12 1.30003e+00 4.76880e-01 41 2008 1 2.04493e+00 5.74506e-01 27 2008 2 1.94517e+00 9.86507e-02 7 2008 3 2.00976e+00 9.44182e-02 21 2008 4 1.96205e+00 2.11022e-01 25 2008 5 1.50488e+00 5.10297e-03 3 2008 6 2.07069e+00 1.14096e-01 4 2008 7 1.13848e+00 1.78282e-01 22 2008 8 1.21870e+00 1.32447e+00 20 2008 9 2.52525e+00 1.01362e+00 31 2008 10 1.18718e+00 2.41677e-01 85 2008 11 1.12022e+00 3.72371e-01 84 2008 12 1.61052e+00 2.76295e-01 32 2009 1 1.55822e+00 2.61170e-01 41 2009 2 1.24808e+00 5.89068e-02 33 2009 3 9.75942e-01 1.68656e-01 32 2009 4 nan nan 0 2009 5 nan nan 0 2009 6 nan nan 0 2009 7 nan nan 0 2009 8 nan nan 0 2009 9 1.94720e+00 1.64248e-01 16 2009 10 1.68682e+00 3.20641e-01 25 2009 11 2.13579e+00 9.30298e-01 47 2009 12 1.66028e+00 6.65071e-02 8 2010 1 1.49963e+00 1.71011e-01 41 2010 2 1.49416e+00 2.25426e-01 38 2010 3 1.58150e+00 6.30983e-02 33 2010 4 1.68217e+00 4.62483e-01 38 2010 5 2.98119e+00 3.37112e-01 14 2010 6 1.75274e+00 4.31229e-01 22 2010 7 1.33533e+00 1.44028e-01 26 2010 8 nan nan 0 2010 9 1.21932e+00 2.97857e-01 47 2010 10 1.24833e+00 3.04073e-01 106 2010 11 1.24851e+00 3.90568e-01 83 2010 12 1.24131e+00 4.13194e-01 122 2011 1 1.35379e+00 4.04102e-01 91 2011 2 1.45595e+00 1.09606e-01 21 2011 3 1.80701e+00 8.34555e-02 15 2011 4 2.46917e+00 1.35999e+00 13 2011 5 1.17591e+00 3.64740e-01 24 2011 6 1.19298e+00 2.66753e-02 3 2011 7 2.63859e+00 8.01666e-02 2 2011 8 1.72373e+00 3.61720e-01 16 2011 9 1.19763e+00 9.73065e-02 15 2011 10 1.10848e+00 2.58405e-01 61 2011 11 1.03631e+00 1.29787e-01 74 2011 12 1.63351e+00 6.58031e-01 41 2012 1 1.12974e+00 2.21922e-01 49 2012 2 1.55960e+00 1.56736e-01 15 2012 3 1.79649e+00 5.10291e-01 36 2012 4 1.23250e+00 3.12297e-01 25 2012 5 9.42380e-01 7.58407e-02 16 2012 6 nan nan 0 2012 7 1.29547e+00 1.53195e-01 14 2012 8 nan nan 0 2012 9 2.72172e+00 1.24595e+00 11 2012 10 1.39396e+00 1.56884e-01 37 2012 11 9.18267e-01 1.92829e-01 95 2012 12 8.61370e-01 3.43630e-01 56 2013 1 1.34335e+00 2.71834e-01 47 2013 2 1.32753e+00 2.89603e-01 39 2013 3 1.81757e+00 2.60743e-01 62 2013 4 1.46072e+00 3.07934e-02 15 2013 5 1.60543e+00 8.20835e-02 16 2013 6 nan nan 0 2013 7 nan nan 0 2013 8 2.24653e+00 2.46148e-01 38 2013 9 2.55367e+00 4.03397e-01 12 2013 10 1.54492e+00 5.56242e-01 70 2013 11 1.08368e+00 4.99208e-01 56 2013 12 1.16494e+00 1.53820e-01 50 2014 1 1.58731e+00 2.98649e-01 35 2014 2 1.36803e+00 4.85232e-01 37 2014 3 1.87569e+00 2.90959e-01 34 2014 4 nan nan 0 2014 5 nan nan 0 2014 6 nan nan 0 2014 7 9.76142e-01 7.27495e-01 10 2014 8 1.47762e+00 1.48834e-01 14 2014 9 9.47659e-01 5.25330e-01 30 2014 10 1.27128e+00 3.33878e-01 118 2014 11 1.00716e+00 1.54312e-01 105 2014 12 8.59224e-01 2.04975e-01 82 2015 1 1.62745e+00 6.72761e-01 55 2015 2 1.26588e+00 3.47696e-01 68 2015 3 1.66970e+00 1.93533e-01 16 2015 4 nan nan 0 2015 5 1.37522e+00 2.02894e-01 8 2015 6 1.30227e+00 6.12856e-02 16 2015 7 nan nan 0 2015 8 1.40474e+00 2.83492e-01 23 2015 9 nan nan 0 2015 10 1.05303e+00 1.66087e-01 57 2015 11 2.79407e+00 7.24551e-01 8 2015 12 1.21348e+00 1.33878e-01 16 2016 1 1.62495e+00 2.81568e-01 32 2016 2 1.76825e+00 3.29565e-01 41 2016 3 1.87656e+00 6.14400e-02 21 2016 4 2.24059e+00 2.06320e-01 18 2016 5 1.85003e+00 4.92172e-01 16 2016 6 1.16213e+00 4.43664e-01 32 2016 7 1.16617e+00 9.08856e-02 32 2016 8 1.18029e+00 3.09950e-01 11 2016 9 1.41325e+00 3.86286e-01 67 2016 10 1.11664e+00 4.02434e-01 65 2016 11 9.20544e-01 2.13255e-01 97 2016 12 1.38053e+00 3.79619e-01 51 2017 1 1.85814e+00 1.00451e-01 8 2017 2 1.87938e+00 1.96884e-01 39 2017 3 1.45409e+00 4.52803e-01 30 2017 4 1.49667e+00 3.60454e-01 21 2017 5 1.57826e+00 6.36064e-01 43 2017 6 nan nan 0 2017 7 2.05068e+00 9.49113e-02 11 2017 8 1.62127e+00 1.00678e-01 16 2017 9 1.38148e+00 3.11899e-01 42 2017 10 1.76421e+00 5.44910e-01 42 2017 11 1.14184e+00 2.95431e-01 77 2017 12 1.06742e+00 6.75223e-02 48 2018 1 1.12988e+00 1.92534e-01 93 2018 2 1.07747e+00 7.57848e-02 9 2018 3 1.57850e+00 2.12138e-01 39 2018 4 1.39096e+00 2.04001e-01 64 2018 5 1.20886e+00 3.27177e-02 16 2018 6 nan nan 0 2018 7 nan nan 0 2018 8 2.20447e+00 1.93641e-01 13 2018 9 1.84737e+00 5.95026e-01 36 2018 10 1.18833e+00 2.15603e-01 63 2018 11 1.54730e+00 3.51396e-02 16 2018 12 1.83445e+00 2.82569e-01 38 2019 1 1.90055e+00 7.56510e-02 11 2019 2 1.16977e+00 9.30884e-02 24 2019 3 1.40538e+00 2.18799e-01 56 2019 4 2.09013e+00 4.22209e-01 13 2019 5 1.69645e+00 2.32506e-01 40 2019 6 1.32215e+00 1.69051e-01 5 2019 7 nan nan 0 2019 8 1.46701e+00 4.98342e-01 8 2019 9 1.08381e+00 1.11464e-01 33 2019 10 1.06492e+00 2.26863e-01 39 2019 11 1.19208e+00 2.04609e-01 52 2019 12 1.34449e+00 3.73151e-01 24 2020 1 1.68208e+00 2.61793e-01 38 2020 2 2.00647e+00 7.67964e-02 4 2020 3 1.57736e+00 9.08361e-02 16 2020 4 1.73681e+00 2.35986e-01 29 2020 5 nan nan 0 2020 6 1.69402e+00 1.25138e-01 25 2020 7 1.56182e+00 1.52264e-01 9 2020 8 1.19587e+00 2.04749e-01 9 2020 9 nan nan 0 2020 10 1.52374e+00 6.07134e-02 13 2020 11 1.19224e+00 2.09213e-01 53 2020 12 1.29927e+00 1.84874e-01 68 2021 1 1.39683e+00 7.24827e-02 32 2021 2 1.31465e+00 1.37508e-01 46 2021 3 1.51042e+00 2.69410e-01 63 2021 4 2.68639e+00 3.52263e-01 2 2021 5 1.37423e+00 2.65446e-02 9 2021 6 nan nan 0 2021 7 nan nan 0 2021 8 1.28983e+00 1.05831e-01 16 2021 9 2.05390e+00 2.18420e-02 2 2021 10 nan nan 0 2021 11 1.11248e+00 3.13486e-01 69 2021 12 1.09630e+00 5.67436e-02 16 2022 1 1.31976e+00 1.17335e-01 35 2022 2 1.21057e+00 2.05140e-01 48 2022 3 1.32017e+00 4.64561e-01 72 2022 4 nan nan 0 2022 5 1.72159e+00 1.81347e-01 21 2022 6 nan nan 0 2022 7 1.66095e+00 1.86212e-01 16 2022 8 2.09060e+00 1.09404e-02 3 2022 9 1.31239e+00 6.17332e-02 14 2022 10 1.25583e+00 1.87373e-01 151 2022 11 1.23679e+00 3.29938e-01 55 2022 12 1.50397e+00 1.25361e-01 63 2023 1 1.54621e+00 4.15453e-01 89 2023 2 1.75969e+00 3.55024e-01 38 2023 3 1.63278e+00 6.55884e-01 27 2023 4 1.92279e+00 6.95153e-01 31 2023 5 9.18129e-01 1.86564e+00 24 2023 6 4.57593e-01 1.66859e-01 12 2023 7 2.21809e+00 8.46626e-01 36 2023 8 1.01306e+00 6.43595e-01 12 2023 9 1.14989e+00 2.24113e-01 78 2023 10 8.48165e-01 4.10836e-01 102 2023 11 8.65588e-01 2.22592e-01 112 2023 12 8.73432e-01 2.41290e-01 59 2024 1 1.34173e+00 1.59580e-01 36 2024 2 1.85992e+00 6.01878e-01 47 2024 3 1.88097e+00 2.85352e-01 32 2024 4 1.96994e+00 2.86024e-01 11