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 1.70763e+01 7.77706e+00 18 2002 8 1.96023e+01 7.36859e+00 24 2002 9 6.05026e+00 3.26926e+00 9 2002 10 1.10901e+01 4.21136e+00 55 2002 11 1.10334e+01 6.31933e+00 21 2002 12 6.03410e+00 3.83664e+00 38 2003 1 3.79077e+00 2.99955e+00 48 2003 2 5.58099e+00 3.37939e+00 27 2003 3 2.12632e+01 3.23693e+00 13 2003 4 1.97227e+01 1.11893e+01 25 2003 5 nan nan 0 2003 6 nan nan 0 2003 7 8.93704e+00 2.03420e+00 14 2003 8 4.00786e+00 1.58221e+00 2 2003 9 9.93717e+00 2.65861e+00 17 2003 10 2.63303e+00 1.31675e+00 35 2003 11 1.15222e+01 7.64252e+00 41 2003 12 2.35970e+00 3.08264e+00 46 2004 1 9.99013e-01 8.39212e-01 21 2004 2 8.39113e+00 2.05126e+00 16 2004 3 2.02572e+01 6.04283e+00 14 2004 4 1.66217e+01 1.06080e+01 17 2004 5 2.05028e+01 6.28487e+00 14 2004 6 2.36422e+01 3.46489e+00 12 2004 7 1.64361e+01 6.73431e+00 12 2004 8 6.27111e+00 2.76482e+00 16 2004 9 2.69402e+00 7.72888e-01 3 2004 10 9.98916e-01 1.28244e+00 31 2004 11 2.02865e+00 1.45082e+00 38 2004 12 2.16588e+00 2.85819e+00 38 2005 1 5.51204e+00 2.95047e+00 4 2005 2 2.19485e+00 1.54814e+00 40 2005 3 2.04413e+00 1.22272e+00 20 2005 4 1.23433e+01 9.18918e+00 28 2005 5 2.70292e+01 1.53586e+01 3 2005 6 1.84432e+01 9.21473e+00 4 2005 7 2.19780e+00 1.10444e+00 13 2005 8 5.63234e+00 3.33476e+00 41 2005 9 4.70443e+00 1.55134e+00 11 2005 10 7.70818e+00 4.32459e+00 14 2005 11 3.72955e+00 2.87855e+00 39 2005 12 6.42841e+00 3.39465e+00 21 2006 1 1.44522e+00 1.60613e+00 24 2006 2 2.13668e+00 2.30796e+00 47 2006 3 1.18721e+01 6.26160e+00 65 2006 4 1.16079e+01 2.85572e+00 6 2006 5 3.00814e+01 7.98050e+00 21 2006 6 2.02562e+01 8.83429e+00 32 2006 7 nan nan 0 2006 8 1.42095e+01 8.16547e+00 12 2006 9 2.73659e+00 1.32985e+00 15 2006 10 6.29987e+00 3.94081e+00 49 2006 11 2.75607e+00 3.27860e+00 29 2006 12 1.35034e+01 7.54690e-01 12 2007 1 7.11162e+00 3.28596e+00 36 2007 2 1.53443e+01 6.45538e+00 41 2007 3 2.48826e+01 6.00040e+00 18 2007 4 3.11458e+01 8.40612e+00 6 2007 5 5.93401e+00 4.76837e-07 3 2007 6 2.67554e+01 9.93546e+00 12 2007 7 nan nan 0 2007 8 1.96065e+01 0.00000e+00 1 2007 9 nan nan 0 2007 10 1.81688e+01 6.63001e+00 23 2007 11 7.61525e+00 5.89188e+00 18 2007 12 1.04951e+01 6.44130e+00 51 2008 1 5.73419e+00 5.90297e+00 34 2008 2 1.93475e+01 8.75167e+00 39 2008 3 2.09964e+01 5.17448e+00 14 2008 4 1.62476e+01 8.94321e+00 21 2008 5 9.30462e+00 7.27642e+00 19 2008 6 7.82475e+00 6.36199e+00 20 2008 7 1.88365e+01 3.57960e+00 29 2008 8 1.57967e+01 1.71498e+00 13 2008 9 1.22862e+01 5.36176e+00 18 2008 10 7.14476e+00 4.71089e+00 43 2008 11 8.80995e+00 6.83311e+00 47 2008 12 5.03660e+00 3.66824e+00 37 2009 1 8.76393e+00 7.46847e+00 44 2009 2 1.41511e+01 1.40848e+01 7 2009 3 1.31306e+01 8.21559e+00 46 2009 4 1.87234e+01 9.82181e+00 19 2009 5 2.86559e+01 0.00000e+00 2 2009 6 1.21951e+01 4.07830e+00 10 2009 7 1.12471e+01 2.68351e+00 19 2009 8 1.19707e+01 4.08016e+00 40 2009 9 7.00530e+00 0.00000e+00 1 2009 10 6.29325e+00 3.49598e+00 14 2009 11 4.75416e+00 4.43329e+00 30 2009 12 nan nan 0 2010 1 3.39492e+00 1.67362e+00 61 2010 2 1.13534e+01 5.39858e+00 26 2010 3 1.29410e+00 1.41139e+00 15 2010 4 1.30218e+01 1.19155e+01 42 2010 5 1.10125e+01 0.00000e+00 2 2010 6 2.81487e+01 1.47508e+01 20 2010 7 nan nan 0 2010 8 5.50695e+00 2.68216e+00 3 2010 9 7.61938e+00 4.06384e+00 37 2010 10 1.00977e+01 6.60151e+00 108 2010 11 1.11341e+01 5.67672e+00 67 2010 12 4.75880e-01 1.09163e+00 7 2011 1 1.93886e+00 2.34655e+00 21 2011 2 1.10618e+01 9.94370e+00 67 2011 3 1.76959e+01 6.72819e+00 38 2011 4 1.24162e+01 3.77793e+00 17 2011 5 9.25857e+00 1.03479e+01 13 2011 6 1.60857e+01 1.07942e+01 39 2011 7 1.32021e+01 6.95904e+00 30 2011 8 1.33796e+01 7.27432e+00 10 2011 9 7.87824e+00 6.33035e+00 59 2011 10 1.13073e+01 6.39370e+00 47 2011 11 8.23284e+00 4.77892e+00 29 2011 12 1.04273e+01 1.02074e+01 57 2012 1 7.75553e+00 1.86289e-01 4 2012 2 1.51825e+01 8.81505e+00 33 2012 3 2.40572e+01 8.93984e+00 32 2012 4 2.05542e+01 1.03371e+01 28 2012 5 3.23163e+01 8.93473e+00 4 2012 6 nan nan 0 2012 7 8.38288e+00 6.13924e+00 7 2012 8 1.27853e+01 4.08448e-01 4 2012 9 1.09170e+01 3.07177e+00 38 2012 10 8.99078e+00 1.93876e+00 12 2012 11 8.46665e+00 3.23168e+00 36 2012 12 1.12818e+01 4.01006e+00 32 2013 1 5.44923e+00 1.08049e+00 12 2013 2 1.01423e+01 7.70077e+00 57 2013 3 1.12542e+01 5.95640e+00 34 2013 4 2.10905e+01 1.04331e+01 21 2013 5 2.14810e+01 4.10794e+00 6 2013 6 nan nan 0 2013 7 8.35074e+00 3.37884e+00 14 2013 8 6.29653e+00 6.98586e-01 10 2013 9 8.51780e+00 4.81115e+00 17 2013 10 1.21770e+01 8.04030e+00 104 2013 11 3.96248e+00 2.94108e+00 9 2013 12 6.05649e+00 3.92888e+00 42 2014 1 2.80263e+00 3.64010e+00 10 2014 2 7.61981e+00 5.69416e+00 25 2014 3 1.06101e+01 9.29490e+00 76 2014 4 2.55240e+01 9.39293e+00 24 2014 5 2.05649e+01 9.33130e+00 59 2014 6 1.72960e+01 7.20150e+00 35 2014 7 nan nan 0 2014 8 1.23146e+01 8.13609e+00 61 2014 9 9.35693e+00 3.77074e+00 24 2014 10 9.65606e+00 7.12141e+00 74 2014 11 5.65806e+00 3.79293e+00 19 2014 12 1.60486e+01 6.47870e+00 26 2015 1 5.72125e+00 5.69469e+00 41 2015 2 3.20710e+00 5.17644e+00 4 2015 3 1.13715e+01 4.17874e+00 34 2015 4 3.24771e+01 1.41712e+01 24 2015 5 1.09118e+01 6.63326e+00 24 2015 6 2.68021e+01 9.39624e+00 13 2015 7 nan nan 0 2015 8 2.58729e+00 2.26494e+00 40 2015 9 9.07239e+00 2.53475e+00 7 2015 10 9.17513e+00 8.93174e-01 11 2015 11 7.28907e+00 3.25550e+00 38 2015 12 1.43577e+01 4.29851e+00 13 2016 1 1.03869e+00 4.24954e-01 18 2016 2 2.15317e+00 2.73063e+00 33 2016 3 6.14966e-01 2.14522e-01 4 2016 4 1.08238e+01 7.01668e+00 18 2016 5 3.45644e+01 8.28887e+00 29 2016 6 1.35999e+01 6.45177e+00 22 2016 7 8.96276e+00 6.29648e+00 20 2016 8 1.30335e+01 8.32905e+00 11 2016 9 8.77786e+00 6.25130e+00 16 2016 10 1.40082e+01 6.11059e+00 45 2016 11 1.14602e+01 5.70483e+00 39 2016 12 1.99189e+01 7.07388e+00 45 2017 1 1.21467e+01 9.32839e+00 15 2017 2 1.09041e+01 6.30618e+00 33 2017 3 1.23039e+01 5.36692e+00 30 2017 4 1.35188e+01 1.04420e+01 46 2017 5 2.00480e+01 0.00000e+00 1 2017 6 1.63269e+01 1.16399e+01 9 2017 7 1.53854e+01 2.86614e+00 5 2017 8 1.96313e+00 4.69118e+00 16 2017 9 5.15201e+00 5.56558e+00 41 2017 10 3.12071e+00 3.73903e+00 31 2017 11 1.51732e+01 6.95388e+00 43 2017 12 5.45985e+00 2.91294e+00 20 2018 1 1.07806e+01 8.97838e-01 3 2018 2 8.29495e+00 2.52009e+00 17 2018 3 5.10349e+00 4.58587e+00 31 2018 4 1.89578e+01 1.36677e+01 29 2018 5 2.49764e+01 1.04368e+01 31 2018 6 1.34584e+01 7.88512e+00 17 2018 7 1.22028e+01 3.90526e+00 3 2018 8 6.84586e+00 2.61065e+00 50 2018 9 4.57876e+00 4.97679e+00 15 2018 10 4.26726e+00 2.66810e+00 35 2018 11 2.54503e+00 5.48735e-01 14 2018 12 6.00043e+00 2.84670e+00 15 2019 1 6.01220e-02 5.62587e-02 2 2019 2 4.86062e+00 5.88875e+00 55 2019 3 1.60963e+01 9.23600e+00 71 2019 4 6.16547e+00 6.39083e+00 10 2019 5 2.15338e+01 7.02337e+00 18 2019 6 8.98449e+00 4.37812e-01 7 2019 7 2.56843e+01 3.30337e+00 16 2019 8 8.43643e-01 4.55594e-01 15 2019 9 1.08998e+01 9.30112e+00 26 2019 10 1.38652e+01 5.59774e+00 14 2019 11 1.10369e+01 7.99435e+00 47 2019 12 4.74689e+00 6.14144e-01 3 2020 1 2.46646e+00 1.71310e+00 18 2020 2 3.95072e+00 9.81467e+00 25 2020 3 5.95989e+00 9.60820e+00 11 2020 4 7.73552e+00 2.42893e+00 5 2020 5 3.22227e+01 1.12044e+01 13 2020 6 1.83788e+01 8.71542e+00 37 2020 7 6.14631e+00 1.43655e+00 20 2020 8 nan nan 0 2020 9 nan nan 0 2020 10 4.80841e+00 9.24108e-01 7 2020 11 4.88512e+00 3.28127e+00 35 2020 12 4.50966e+00 2.56802e+00 28 2021 1 8.06173e+00 9.55610e+00 29 2021 2 3.18521e+00 2.74549e+00 11 2021 3 1.74266e+00 5.13950e-01 4 2021 4 1.88080e+01 9.89104e+00 10 2021 5 1.85940e+01 8.28376e+00 35 2021 6 nan nan 0 2021 7 1.21368e+01 8.07122e+00 8 2021 8 7.57597e+00 5.84868e+00 18 2021 9 8.62899e+00 6.87811e+00 45 2021 10 8.98306e+00 3.21894e+00 58 2021 11 1.42907e+01 3.83497e+00 22 2021 12 9.44085e+00 3.97469e+00 42 2022 1 1.21972e+00 1.05121e+00 30 2022 2 1.51973e+01 1.19751e+01 39 2022 3 1.32956e+01 1.37394e+01 35 2022 4 2.48037e+01 1.47792e+01 3 2022 5 1.64528e+01 9.12397e+00 9 2022 6 1.96065e+01 0.00000e+00 1 2022 7 4.58432e+00 0.00000e+00 1 2022 8 1.98217e+01 5.12633e+00 22 2022 9 9.92183e+00 3.98534e+00 18 2022 10 1.16152e+01 6.83882e+00 107 2022 11 6.99477e+00 5.74198e+00 43 2022 12 7.50141e+00 4.64416e+00 46 2023 1 9.14355e+00 6.84187e+00 130 2023 2 1.34872e+01 7.34689e+00 89 2023 3 1.55540e+01 8.06388e+00 185 2023 4 2.50258e+01 9.89237e+00 7 2023 5 1.90412e+01 1.28097e+01 35 2023 6 1.73568e+01 6.15165e+00 36 2023 7 1.34537e+01 8.18574e+00 54 2023 8 1.85756e+01 8.57137e+00 31 2023 9 1.22133e+01 7.20803e+00 68 2023 10 1.82811e+01 6.16829e+00 71 2023 11 1.08360e+01 5.46094e+00 73 2023 12 1.31675e+00 1.46665e+00 56 2024 1 2.06526e+00 5.32023e-01 20 2024 2 1.13473e+01 1.07039e+01 77 2024 3 2.08439e+01 1.34421e+01 98 2024 4 nan nan 0