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 6.09352e+01 3.80560e-03 13 2002 8 5.68972e+01 5.48671e-01 19 2002 9 4.80917e+01 2.68650e+00 55 2002 10 4.10523e+01 3.77285e+00 42 2002 11 3.04291e+01 1.26318e+00 70 2002 12 2.67776e+01 3.28109e-01 72 2003 1 2.91599e+01 1.38570e+00 91 2003 2 3.50683e+01 1.81142e+00 88 2003 3 4.92933e+01 1.51532e+00 35 2003 4 5.48890e+01 2.41405e+00 48 2003 5 nan nan 0 2003 6 nan nan 0 2003 7 nan nan 0 2003 8 5.58753e+01 1.13227e+00 40 2003 9 5.02930e+01 1.77232e+00 48 2003 10 3.98170e+01 3.11734e+00 187 2003 11 3.15187e+01 2.16200e+00 133 2003 12 2.69654e+01 5.22294e-01 137 2004 1 3.01910e+01 1.31641e+00 56 2004 2 3.85810e+01 2.67773e+00 37 2004 3 4.65312e+01 1.45488e+00 79 2004 4 5.31061e+01 1.48337e+00 27 2004 5 5.99188e+01 9.33836e-01 60 2004 6 6.15437e+01 3.88346e-02 18 2004 7 6.08961e+01 6.30413e-02 20 2004 8 5.57954e+01 4.98629e-03 16 2004 9 4.91264e+01 2.54146e+00 79 2004 10 3.81001e+01 2.34879e+00 80 2004 11 3.14469e+01 2.03404e+00 78 2004 12 2.65977e+01 1.75279e-01 80 2005 1 3.00756e+01 1.57084e+00 70 2005 2 3.67921e+01 1.74000e+00 80 2005 3 4.63911e+01 2.56928e+00 132 2005 4 5.38991e+01 1.99665e-03 16 2005 5 5.97281e+01 1.02564e-01 17 2005 6 6.15889e+01 3.01999e-01 32 2005 7 6.04762e+01 4.32084e-01 38 2005 8 nan nan 0 2005 9 4.81409e+01 3.33675e+00 32 2005 10 3.93730e+01 2.42968e+00 151 2005 11 3.05538e+01 2.15759e+00 111 2005 12 2.64761e+01 1.36883e-01 64 2006 1 2.98021e+01 1.85879e+00 82 2006 2 3.64137e+01 2.30882e+00 94 2006 3 4.61071e+01 3.27153e+00 112 2006 4 5.45153e+01 9.79630e-01 48 2006 5 5.99077e+01 9.07941e-01 56 2006 6 6.15264e+01 5.59918e-03 18 2006 7 6.06507e+01 1.64858e-01 30 2006 8 5.65120e+01 4.31989e-03 3 2006 9 4.71742e+01 2.82631e+00 78 2006 10 3.99990e+01 2.70791e+00 152 2006 11 3.11355e+01 2.27602e+00 128 2006 12 2.71562e+01 6.03317e-01 104 2007 1 3.00979e+01 1.59624e+00 69 2007 2 3.63792e+01 2.02243e+00 81 2007 3 4.64323e+01 2.62286e+00 107 2007 4 5.51329e+01 1.40103e+00 78 2007 5 5.90161e+01 2.05708e-03 16 2007 6 nan nan 0 2007 7 6.11405e+01 2.69252e-03 16 2007 8 5.50571e+01 1.37847e+00 19 2007 9 4.89240e+01 3.36067e+00 32 2007 10 3.97086e+01 3.28982e+00 90 2007 11 3.10153e+01 1.80331e+00 109 2007 12 2.67603e+01 1.20388e-01 29 2008 1 2.94205e+01 1.97480e+00 61 2008 2 3.64587e+01 3.08148e+00 66 2008 3 4.63923e+01 2.48925e+00 104 2008 4 5.54392e+01 2.53984e-01 32 2008 5 6.02815e+01 2.24009e-03 13 2008 6 6.18767e+01 1.36322e-01 37 2008 7 5.98921e+01 8.74399e-01 32 2008 8 5.63966e+01 1.51384e+00 37 2008 9 4.86686e+01 2.80656e+00 62 2008 10 3.89885e+01 3.42536e+00 113 2008 11 3.10331e+01 1.80405e+00 178 2008 12 2.70378e+01 6.31279e-01 74 2009 1 2.93626e+01 1.61530e+00 96 2009 2 3.61862e+01 2.58583e+00 102 2009 3 4.49728e+01 2.05941e+00 41 2009 4 5.74384e+01 7.81753e-03 16 2009 5 6.11659e+01 3.03867e-03 16 2009 6 6.16063e+01 1.01355e-01 6 2009 7 nan nan 0 2009 8 5.50160e+01 3.99971e-03 2 2009 9 4.59688e+01 2.29712e-01 32 2009 10 4.00286e+01 2.10831e+00 81 2009 11 3.26765e+01 1.36864e+00 119 2009 12 2.77311e+01 2.36516e-01 26 2010 1 2.79918e+01 9.00666e-01 89 2010 2 3.90396e+01 1.11488e+00 69 2010 3 4.47480e+01 3.04112e+00 72 2010 4 5.49787e+01 1.67636e+00 82 2010 5 5.96468e+01 7.64503e-01 45 2010 6 6.15487e+01 8.86756e-02 59 2010 7 6.07250e+01 8.66141e-01 41 2010 8 nan nan 0 2010 9 4.75583e+01 2.28747e+00 105 2010 10 4.08444e+01 2.65643e+00 185 2010 11 3.20832e+01 1.76093e+00 106 2010 12 2.69819e+01 5.03150e-01 171 2011 1 2.91246e+01 1.55325e+00 157 2011 2 3.82621e+01 1.52259e+00 75 2011 3 4.70599e+01 1.57850e+00 80 2011 4 5.37436e+01 2.17549e+00 46 2011 5 6.00472e+01 4.94344e-01 48 2011 6 6.17066e+01 8.65494e-02 39 2011 7 6.06987e+01 8.37955e-01 25 2011 8 5.51201e+01 1.20398e+00 47 2011 9 4.90421e+01 2.56521e+00 27 2011 10 4.03110e+01 3.04182e+00 139 2011 11 3.16063e+01 2.49586e+00 88 2011 12 2.68416e+01 5.78885e-01 82 2012 1 2.92922e+01 1.69685e+00 131 2012 2 3.61979e+01 5.24542e-02 31 2012 3 4.40600e+01 1.55211e+00 42 2012 4 5.58695e+01 1.16133e+00 48 2012 5 5.85469e+01 1.40962e-03 16 2012 6 nan nan 0 2012 7 6.05304e+01 2.66634e-03 16 2012 8 5.45471e+01 4.05997e-03 16 2012 9 4.97938e+01 2.79198e+00 34 2012 10 3.83536e+01 2.17933e+00 135 2012 11 3.12630e+01 1.94072e+00 158 2012 12 2.69638e+01 4.40316e-01 127 2013 1 2.94833e+01 1.14168e+00 64 2013 2 3.61067e+01 2.75436e+00 98 2013 3 4.86799e+01 1.86906e+00 88 2013 4 5.43881e+01 1.45735e+00 38 2013 5 6.11641e+01 6.72567e-03 16 2013 6 nan nan 0 2013 7 nan nan 0 2013 8 5.49951e+01 7.49365e-01 47 2013 9 5.04782e+01 1.36832e+00 74 2013 10 4.02739e+01 2.97359e+00 142 2013 11 3.06952e+01 2.08000e+00 121 2013 12 2.68299e+01 5.02183e-01 75 2014 1 2.91458e+01 7.28115e-01 80 2014 2 3.53891e+01 1.57258e+00 64 2014 3 4.59512e+01 3.18767e+00 78 2014 4 5.47944e+01 1.36868e+00 39 2014 5 6.01612e+01 5.23777e-03 16 2014 6 nan nan 0 2014 7 6.09919e+01 4.50630e-01 31 2014 8 5.52603e+01 1.97989e-03 7 2014 9 5.04725e+01 8.51079e-01 57 2014 10 3.90848e+01 2.70964e+00 186 2014 11 3.09826e+01 2.30929e+00 156 2014 12 2.68568e+01 3.71330e-01 113 2015 1 3.02739e+01 1.72287e+00 144 2015 2 3.58089e+01 1.77543e+00 134 2015 3 4.79319e+01 2.95865e+00 24 2015 4 5.63120e+01 4.52815e-03 16 2015 5 6.09420e+01 1.71953e-01 28 2015 6 6.15752e+01 3.66600e-03 16 2015 7 6.06431e+01 7.47666e-01 32 2015 8 5.59189e+01 2.13059e+00 54 2015 9 5.00865e+01 1.65503e+00 33 2015 10 3.96790e+01 1.58880e+00 101 2015 11 3.15740e+01 1.61252e+00 50 2015 12 2.68821e+01 3.68843e-01 61 2016 1 2.94222e+01 5.42865e-01 38 2016 2 3.75015e+01 2.84935e+00 95 2016 3 4.49707e+01 2.33176e+00 72 2016 4 5.40222e+01 1.96667e+00 46 2016 5 6.10407e+01 6.43814e-03 16 2016 6 6.17507e+01 5.94590e-02 46 2016 7 6.07919e+01 6.06351e-01 47 2016 8 5.56349e+01 4.54976e-01 45 2016 9 4.77209e+01 2.38046e+00 74 2016 10 3.94877e+01 2.59598e+00 159 2016 11 3.12520e+01 2.01460e+00 133 2016 12 2.69691e+01 6.20623e-01 61 2017 1 3.01609e+01 2.06644e+00 92 2017 2 3.86845e+01 2.06826e+00 95 2017 3 4.67893e+01 2.99601e+00 77 2017 4 5.25371e+01 9.03768e-01 34 2017 5 6.06994e+01 5.14425e-01 51 2017 6 6.16355e+01 2.18000e-03 16 2017 7 6.06238e+01 3.58056e-01 24 2017 8 5.50807e+01 1.16166e+00 42 2017 9 4.81941e+01 2.34618e+00 56 2017 10 3.87225e+01 2.76956e+00 101 2017 11 3.12825e+01 1.88181e+00 103 2017 12 2.69718e+01 4.93694e-01 95 2018 1 2.99085e+01 1.59479e+00 113 2018 2 3.57956e+01 9.78743e-01 21 2018 3 4.44147e+01 1.60021e+00 58 2018 4 5.43702e+01 2.07787e+00 91 2018 5 5.93798e+01 8.54843e-01 24 2018 6 6.15241e+01 4.21090e-03 16 2018 7 5.97411e+01 3.13100e-01 14 2018 8 5.59722e+01 1.65907e+00 32 2018 9 4.85659e+01 2.55082e+00 60 2018 10 3.89666e+01 2.74984e+00 96 2018 11 3.01104e+01 1.08103e+00 51 2018 12 2.69829e+01 4.68075e-01 48 2019 1 3.09077e+01 1.34199e+00 38 2019 2 3.86772e+01 2.24619e+00 32 2019 3 4.55917e+01 3.41027e+00 58 2019 4 5.63569e+01 6.83677e-01 69 2019 5 5.98396e+01 8.56496e-01 100 2019 6 6.15769e+01 4.60512e-02 28 2019 7 6.04730e+01 5.00107e-03 4 2019 8 5.58077e+01 2.45545e+00 27 2019 9 4.65366e+01 1.26555e+00 48 2019 10 4.02647e+01 2.85205e+00 95 2019 11 3.16449e+01 2.56141e+00 93 2019 12 2.65764e+01 9.89414e-02 32 2020 1 2.87871e+01 1.56411e+00 64 2020 2 3.73356e+01 3.01199e+00 111 2020 3 4.56180e+01 2.25642e+00 66 2020 4 5.38236e+01 1.78211e+00 33 2020 5 5.93545e+01 1.04854e+00 45 2020 6 6.16953e+01 3.78790e-02 17 2020 7 6.00627e+01 1.64438e-01 31 2020 8 5.73950e+01 5.66016e-01 27 2020 9 nan nan 0 2020 10 3.72378e+01 1.10275e+00 64 2020 11 3.11572e+01 1.64577e+00 80 2020 12 2.68802e+01 4.28542e-01 142 2021 1 2.92947e+01 1.66596e+00 79 2021 2 3.72767e+01 2.56402e+00 92 2021 3 4.55353e+01 2.68960e+00 96 2021 4 5.48105e+01 2.26481e+00 70 2021 5 6.06218e+01 5.21687e-01 37 2021 6 6.15113e+01 4.71505e-03 3 2021 7 6.01839e+01 4.77843e-01 31 2021 8 nan nan 0 2021 9 5.03474e+01 2.33820e+00 43 2021 10 3.96282e+01 9.29279e-01 17 2021 11 3.06695e+01 1.66689e+00 159 2021 12 2.69077e+01 6.17112e-01 46 2022 1 3.01083e+01 1.81278e+00 125 2022 2 3.72704e+01 3.19724e+00 86 2022 3 4.57392e+01 2.86660e+00 107 2022 4 5.76255e+01 1.65740e-03 8 2022 5 6.04705e+01 1.00261e+00 44 2022 6 6.15809e+01 9.61235e-02 32 2022 7 6.04729e+01 6.45965e-01 38 2022 8 5.35131e+01 7.88998e-01 34 2022 9 4.78244e+01 2.75711e+00 99 2022 10 4.02693e+01 2.36729e+00 192 2022 11 3.19485e+01 2.30397e+00 103 2022 12 2.68977e+01 5.09034e-01 99 2023 1 2.92077e+01 1.72740e+00 178 2023 2 3.65648e+01 2.70084e+00 97 2023 3 4.59703e+01 9.08400e-01 18 2023 4 5.59733e+01 5.03020e-01 36 2023 5 5.88892e+01 8.84065e-01 32 2023 6 nan nan 0 2023 7 6.01271e+01 7.88130e-01 80 2023 8 5.60442e+01 1.93386e+00 53 2023 9 4.82057e+01 1.98156e+00 96 2023 10 3.80725e+01 2.24440e+00 143 2023 11 3.19486e+01 2.09707e+00 113 2023 12 2.65496e+01 3.04398e-01 76 2024 1 2.95541e+01 1.55111e+00 70 2024 2 3.78343e+01 1.81250e+00 93 2024 3 4.81396e+01 2.96570e+00 39 2024 4 nan nan 0