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 1.22452e+00 9.14808e-02 12 2002 8 nan nan 0 2002 9 2.29503e+00 5.65563e-02 16 2002 10 9.86562e-01 2.45943e-01 23 2002 11 2.23392e+00 3.64461e-01 28 2002 12 2.25509e+00 3.11596e-01 64 2003 1 2.49675e+00 4.85163e-01 64 2003 2 1.96653e+00 9.77129e-01 97 2003 3 4.82221e+00 4.46951e-01 7 2003 4 2.08884e+00 1.53894e-01 12 2003 5 7.25263e+00 1.74483e-01 10 2003 6 nan nan 0 2003 7 nan nan 0 2003 8 nan nan 0 2003 9 1.77124e+00 4.00982e-01 38 2003 10 1.73149e+00 4.49422e-01 94 2003 11 1.77312e+00 2.57868e-01 87 2003 12 2.43934e+00 6.84148e-01 94 2004 1 1.68770e+00 4.07975e-01 70 2004 2 2.08389e+00 1.91972e-01 12 2004 3 3.05164e+00 1.61315e+00 83 2004 4 2.06093e+00 5.06699e-01 70 2004 5 3.10879e+00 1.63191e+00 45 2004 6 2.40924e+00 9.24885e-02 16 2004 7 2.06353e+00 3.11142e-01 16 2004 8 1.72300e+00 1.52682e-01 16 2004 9 3.60892e+00 8.22731e-02 15 2004 10 1.81294e+00 5.05670e-01 60 2004 11 2.49066e+00 6.50731e-01 48 2004 12 2.45024e+00 1.00351e-01 16 2005 1 1.36194e+00 7.37434e-01 33 2005 2 1.70330e+00 8.07639e-01 48 2005 3 2.58686e+00 9.76910e-01 112 2005 4 6.28180e+00 1.96105e-01 14 2005 5 2.18303e+00 3.83357e-01 11 2005 6 3.90943e+00 7.32557e-02 16 2005 7 2.24462e+00 1.40523e-01 24 2005 8 1.48173e+00 2.97891e-01 10 2005 9 1.04240e+00 1.23030e-01 6 2005 10 1.62727e+00 1.00783e+00 81 2005 11 1.08953e+00 1.41270e-01 62 2005 12 2.02163e+00 6.11275e-01 68 2006 1 2.49890e+00 1.15199e+00 64 2006 2 2.73835e+00 5.91087e-01 129 2006 3 2.74521e+00 1.37122e+00 111 2006 4 1.30013e+00 3.24260e-01 47 2006 5 2.34064e+00 1.10772e+00 37 2006 6 1.43601e+00 7.81905e-02 16 2006 7 1.10237e+00 2.14034e-01 16 2006 8 1.48488e+00 0.00000e+00 2 2006 9 1.74482e+00 1.65171e-01 48 2006 10 2.08495e+00 6.83324e-01 97 2006 11 1.71143e+00 6.01892e-01 125 2006 12 1.20948e+00 6.15518e-01 61 2007 1 1.56614e+00 3.80978e-01 51 2007 2 3.75879e+00 1.63022e+00 73 2007 3 2.98777e+00 1.79412e+00 100 2007 4 2.24742e+00 2.21566e-01 30 2007 5 2.10067e+00 7.48831e-01 32 2007 6 nan nan 0 2007 7 1.30398e+00 2.01105e-01 3 2007 8 7.17547e-01 3.97835e-01 6 2007 9 1.70875e+00 9.02498e-02 16 2007 10 1.45861e+00 5.23581e-01 98 2007 11 1.22626e+00 3.83808e-01 127 2007 12 2.23369e+00 5.59903e-01 49 2008 1 3.05914e+00 7.57630e-01 46 2008 2 3.91054e+00 1.16536e+00 58 2008 3 2.62548e+00 6.94087e-01 34 2008 4 3.20839e+00 5.49979e-02 9 2008 5 2.09773e+00 1.67243e-01 16 2008 6 nan nan 0 2008 7 nan nan 0 2008 8 nan nan 0 2008 9 6.61487e-01 1.99062e-01 10 2008 10 1.80592e+00 1.22207e+00 73 2008 11 1.32679e+00 2.36388e-01 97 2008 12 2.18325e+00 2.57920e-01 16 2009 1 3.56044e+00 2.14132e-01 31 2009 2 1.81306e+00 5.93035e-01 88 2009 3 2.23839e+00 3.23086e-01 76 2009 4 3.91863e+00 3.10027e-01 19 2009 5 3.01780e+00 9.91705e-02 14 2009 6 3.26425e+00 9.43493e-02 4 2009 7 nan nan 0 2009 8 nan nan 0 2009 9 nan nan 0 2009 10 2.21877e+00 7.79863e-01 62 2009 11 2.27172e+00 5.49626e-01 49 2009 12 nan nan 0 2010 1 nan nan 0 2010 2 6.31335e+00 0.00000e+00 2 2010 3 4.06558e+00 7.96983e-01 37 2010 4 2.45832e+00 6.26413e-01 60 2010 5 nan nan 0 2010 6 1.48644e+00 5.97494e-01 41 2010 7 1.47120e+00 3.12237e-01 27 2010 8 nan nan 0 2010 9 1.46825e+00 4.50749e-01 62 2010 10 1.49981e+00 3.05245e-01 133 2010 11 1.61107e+00 4.67799e-01 74 2010 12 1.98122e+00 1.16994e+00 140 2011 1 2.06054e+00 5.31156e-01 96 2011 2 2.47682e+00 1.11559e+00 76 2011 3 2.57859e+00 9.12481e-01 124 2011 4 1.70314e+00 5.18615e-01 25 2011 5 1.59313e+00 2.88384e-01 22 2011 6 1.41623e+00 2.20883e-01 32 2011 7 1.49080e+00 2.95309e-01 23 2011 8 1.63601e+00 2.55116e-01 22 2011 9 2.25789e+00 7.51293e-01 11 2011 10 1.80457e+00 9.51925e-01 132 2011 11 1.37956e+00 1.00757e+00 117 2011 12 1.08606e+00 2.81338e-01 99 2012 1 1.64653e+00 3.64392e-01 123 2012 2 2.77486e+00 1.08903e+00 44 2012 3 1.25731e+00 1.61101e-01 3 2012 4 1.88262e+00 2.17501e-01 16 2012 5 1.04406e+00 2.11223e-01 16 2012 6 2.02826e+00 4.70261e-02 12 2012 7 nan nan 0 2012 8 nan nan 0 2012 9 nan nan 0 2012 10 1.35427e+00 2.88303e-01 35 2012 11 1.12394e+00 2.59916e-01 141 2012 12 2.18606e+00 1.44548e+00 83 2013 1 2.08127e+00 9.52296e-01 61 2013 2 1.76393e+00 4.71974e-01 35 2013 3 4.22760e+00 2.32262e-01 30 2013 4 2.00509e+00 1.41654e-01 10 2013 5 2.90718e+00 8.61898e-02 4 2013 6 5.44674e-01 5.79476e-02 16 2013 7 nan nan 0 2013 8 nan nan 0 2013 9 2.07533e+00 3.68800e-01 31 2013 10 1.78451e+00 3.40763e-01 69 2013 11 1.74748e+00 8.26117e-01 79 2013 12 1.91209e+00 3.33758e-01 76 2014 1 nan nan 0 2014 2 2.79356e+00 5.88929e-01 64 2014 3 3.67981e+00 6.99590e-01 34 2014 4 3.58838e+00 6.63529e-01 32 2014 5 nan nan 0 2014 6 1.53559e+00 6.84268e-01 10 2014 7 2.12382e+00 4.71685e-01 15 2014 8 nan nan 0 2014 9 1.48545e+00 3.68553e-01 29 2014 10 1.78675e+00 7.13345e-01 179 2014 11 1.53294e+00 4.86121e-01 117 2014 12 1.32922e+00 3.00503e-01 109 2015 1 3.31673e+00 7.43974e-01 53 2015 2 2.43546e+00 5.02495e-01 100 2015 3 1.91399e+00 8.74748e-01 34 2015 4 nan nan 0 2015 5 2.11810e+00 4.21035e-01 19 2015 6 1.95660e+00 7.67250e-01 48 2015 7 2.21685e+00 1.50037e-01 27 2015 8 1.78942e+00 3.70861e-01 30 2015 9 2.47913e+00 2.77733e+00 36 2015 10 1.24232e+00 1.85912e-01 23 2015 11 9.57128e-01 1.41693e-01 16 2015 12 1.75377e+00 1.93730e-01 2 2016 1 4.55192e+00 3.20024e-02 3 2016 2 6.16888e+00 6.19379e-01 39 2016 3 4.50423e+00 1.66469e+00 19 2016 4 2.79769e+00 1.13215e-01 16 2016 5 nan nan 0 2016 6 1.48863e+00 2.16475e-01 30 2016 7 1.93089e+00 2.23746e-01 18 2016 8 2.39853e+00 4.26111e-01 5 2016 9 1.64506e+00 6.48462e-01 40 2016 10 1.68583e+00 4.83406e-01 67 2016 11 1.43089e+00 3.50049e-01 94 2016 12 1.79563e+00 4.61926e-01 50 2017 1 4.18978e+00 2.36455e+00 28 2017 2 3.37038e+00 1.46863e+00 97 2017 3 2.94007e+00 8.31072e-01 75 2017 4 2.52808e+00 8.60026e-01 50 2017 5 2.19585e+00 7.04965e-01 32 2017 6 1.76153e+00 3.39901e-01 19 2017 7 2.19832e+00 1.88174e-01 32 2017 8 1.91574e+00 4.78456e-01 23 2017 9 1.54032e+00 1.48602e-01 21 2017 10 2.09130e+00 6.34849e-01 66 2017 11 1.90807e+00 6.86967e-01 146 2017 12 1.39310e+00 5.61941e-01 74 2018 1 1.46278e+00 3.91589e-01 142 2018 2 1.02342e+00 1.91876e-01 16 2018 3 2.99127e+00 6.34326e-01 89 2018 4 2.20327e+00 3.24011e-01 79 2018 5 1.32824e+00 9.81807e-02 16 2018 6 1.81047e+00 4.92230e-01 18 2018 7 5.22206e-01 0.00000e+00 1 2018 8 1.29118e+00 2.63590e-01 4 2018 9 1.25709e+00 4.62901e-01 28 2018 10 1.01023e+00 4.32411e-01 41 2018 11 nan nan 0 2018 12 4.90310e+00 3.15067e+00 8 2019 1 nan nan 0 2019 2 2.41644e+00 5.86166e-01 16 2019 3 3.23546e+00 6.93988e-01 74 2019 4 2.13792e+00 3.87977e-01 24 2019 5 1.91989e+00 6.34533e-01 60 2019 6 1.40682e+00 1.41524e-01 17 2019 7 nan nan 0 2019 8 1.51777e+00 0.00000e+00 1 2019 9 1.47666e+00 1.81403e-01 48 2019 10 1.17243e+00 3.54523e-01 52 2019 11 1.15070e+00 4.82089e-01 48 2019 12 1.46611e+00 4.18179e-01 48 2020 1 2.17490e+00 4.81136e-01 26 2020 2 3.82916e+00 1.82385e+00 35 2020 3 3.77108e+00 6.85945e-01 48 2020 4 2.09158e+00 7.79057e-02 5 2020 5 nan nan 0 2020 6 1.87607e+00 1.50077e-01 16 2020 7 2.20768e+00 2.08461e-01 13 2020 8 1.47037e+00 1.30272e-01 10 2020 9 nan nan 0 2020 10 1.72508e+00 8.96097e-01 23 2020 11 1.38510e+00 1.13265e-01 32 2020 12 3.03187e+00 6.60582e-01 51 2021 1 nan nan 0 2021 2 3.52029e+00 3.90632e-01 20 2021 3 4.07363e+00 1.13354e+00 43 2021 4 3.17248e+00 1.20513e-01 16 2021 5 2.21964e+00 6.32491e-01 52 2021 6 nan nan 0 2021 7 nan nan 0 2021 8 1.62109e+00 1.41825e-01 17 2021 9 1.85718e+00 6.82659e-02 16 2021 10 1.89386e+00 5.59111e-01 36 2021 11 1.41749e+00 6.55666e-01 100 2021 12 3.45374e+00 1.57724e+00 40 2022 1 2.36430e+00 5.87597e-01 53 2022 2 1.80398e+00 2.47655e-01 72 2022 3 1.98404e+00 3.26640e-01 69 2022 4 2.57637e+00 2.43798e-01 16 2022 5 1.60090e+00 6.01475e-01 48 2022 6 1.80469e+00 1.03363e-01 26 2022 7 9.61163e-01 5.85512e-02 8 2022 8 5.69628e-01 1.64249e-01 30 2022 9 1.27916e+00 2.88426e-01 31 2022 10 1.54027e+00 2.85442e-01 132 2022 11 1.01082e+00 1.67377e-01 76 2022 12 1.57142e+00 8.40939e-01 84 2023 1 1.42742e+00 8.09584e-01 109 2023 2 2.92171e+00 1.78823e+00 82 2023 3 1.32098e+00 1.88895e-01 41 2023 4 1.87492e+00 5.04294e-01 32 2023 5 1.67400e+00 4.12493e-01 32 2023 6 nan nan 0 2023 7 2.72930e+00 1.57603e-01 31 2023 8 9.56569e-01 2.06842e-01 15 2023 9 1.09521e+00 3.92810e-01 33 2023 10 2.25260e+00 3.01824e+00 91 2023 11 1.20579e+00 2.88257e-01 82 2023 12 1.36565e+00 3.68574e-01 38 2024 1 2.63884e+00 1.14057e+00 48 2024 2 3.51688e+00 1.30005e-01 32 2024 3 2.29151e+00 7.14700e-01 33 2024 4 nan nan 0