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 1.54293e+01 2.43679e-01 16 2002 8 1.51613e+01 5.63194e-01 48 2002 9 9.15738e+00 6.13670e+00 45 2002 10 8.67061e+00 2.49875e+00 72 2002 11 3.98295e+00 2.10160e+00 154 2002 12 8.38404e+00 3.47589e+00 116 2003 1 9.91026e+00 3.18434e+00 128 2003 2 9.55874e+00 6.25546e+00 108 2003 3 2.17741e-01 1.30682e-01 24 2003 4 3.74827e+00 3.83397e+00 112 2003 5 7.38356e+00 2.52233e+00 44 2003 6 7.69143e+00 1.61527e+00 35 2003 7 1.69243e+00 2.13722e+00 32 2003 8 1.05843e+00 7.72313e-01 26 2003 9 3.36250e+00 2.36885e+00 117 2003 10 1.10130e+01 4.51200e+00 135 2003 11 1.09543e+01 2.86513e+00 143 2003 12 1.42964e+01 3.87210e+00 143 2004 1 1.96430e+01 5.90583e+00 103 2004 2 9.68180e+00 2.73362e+00 33 2004 3 9.94290e+00 3.83174e+00 118 2004 4 1.34915e+01 7.16886e+00 104 2004 5 1.84663e+01 1.67015e+00 51 2004 6 nan nan 0 2004 7 9.53678e+00 1.57270e+00 30 2004 8 1.58438e+01 4.70750e-01 32 2004 9 2.42354e+00 2.54036e-01 13 2004 10 8.09170e+00 4.57366e+00 46 2004 11 5.78100e+00 2.76451e+00 78 2004 12 4.02659e+00 1.34837e+00 51 2005 1 8.27836e+00 4.63095e+00 93 2005 2 1.06285e+01 4.46213e+00 107 2005 3 6.31911e+00 3.81602e+00 88 2005 4 nan nan 0 2005 5 9.00250e+00 3.21865e+00 45 2005 6 7.45945e+00 4.65053e+00 48 2005 7 1.80275e+00 2.22118e+00 20 2005 8 nan nan 0 2005 9 1.27274e+01 6.85568e+00 32 2005 10 1.94516e+01 4.51699e+00 150 2005 11 1.65611e+01 6.28308e+00 159 2005 12 1.18124e+01 3.55227e+00 50 2006 1 4.88791e+00 1.72393e+00 47 2006 2 7.88020e+00 2.80953e+00 98 2006 3 8.62827e+00 4.00747e+00 135 2006 4 1.40682e+01 6.52119e+00 85 2006 5 1.66860e+01 7.26031e+00 78 2006 6 1.52408e+01 2.37425e+00 32 2006 7 1.55103e+01 2.57585e+00 22 2006 8 1.38582e+01 1.80429e+00 51 2006 9 1.02790e+01 3.70081e+00 68 2006 10 1.26058e+01 4.41334e+00 140 2006 11 1.33166e+01 8.38487e+00 148 2006 12 1.55576e+01 8.26484e+00 79 2007 1 4.84453e+00 2.33513e+00 61 2007 2 8.68078e+00 3.69992e+00 141 2007 3 7.24254e+00 3.56620e+00 165 2007 4 1.09300e+01 5.04578e+00 139 2007 5 1.28265e+01 6.20496e+00 32 2007 6 nan nan 0 2007 7 1.47284e+01 4.55942e+00 47 2007 8 7.31946e+00 2.03270e+00 48 2007 9 3.22356e+00 1.90903e+00 28 2007 10 2.99114e+00 3.40378e+00 74 2007 11 1.13685e+01 5.06253e+00 177 2007 12 1.21542e+01 1.00695e+00 32 2008 1 8.04841e+00 4.58518e+00 86 2008 2 6.27680e+00 3.86102e+00 189 2008 3 1.00571e+00 7.73529e-01 96 2008 4 7.31186e+00 2.40892e+00 57 2008 5 1.45167e+01 4.39275e+00 76 2008 6 1.89460e+01 1.65978e+00 66 2008 7 1.89896e+01 4.72047e-01 16 2008 8 nan nan 0 2008 9 5.37448e+00 3.63874e+00 56 2008 10 6.75871e+00 4.25172e+00 149 2008 11 1.27906e+01 4.47175e+00 172 2008 12 9.27200e+00 4.92736e+00 100 2009 1 5.20236e+00 2.67082e+00 100 2009 2 8.48490e+00 3.18003e+00 164 2009 3 1.02346e+01 2.81900e+00 111 2009 4 nan nan 0 2009 5 5.16647e+00 3.43748e+00 44 2009 6 nan nan 0 2009 7 1.34573e+01 9.41442e-01 10 2009 8 1.31794e+01 4.95482e-01 23 2009 9 3.96888e+00 3.49538e+00 75 2009 10 6.02793e+00 2.24077e+00 128 2009 11 6.28231e+00 3.25214e+00 83 2009 12 nan nan 0 2010 1 1.86585e+00 1.32225e+00 29 2010 2 1.19523e+00 6.03792e-01 42 2010 3 4.44063e+00 2.00166e+00 100 2010 4 6.28645e+00 3.61632e+00 77 2010 5 7.60432e+00 5.05659e+00 45 2010 6 1.22710e+01 1.21388e+00 66 2010 7 1.26056e+01 3.01932e+00 58 2010 8 nan nan 0 2010 9 1.00517e+01 6.15810e+00 98 2010 10 1.41124e+01 4.00354e+00 269 2010 11 1.67588e+01 5.25948e+00 215 2010 12 1.59109e+01 3.32436e+00 114 2011 1 1.03785e+01 5.00532e+00 101 2011 2 7.66476e+00 2.07175e+00 110 2011 3 9.32168e+00 2.80791e+00 112 2011 4 9.04207e+00 2.50023e+00 103 2011 5 1.73539e+01 3.58761e+00 69 2011 6 6.32953e+00 1.26947e+00 20 2011 7 1.61579e+01 4.84606e+00 7 2011 8 9.55677e+00 3.07359e+00 36 2011 9 1.16468e+01 4.28304e+00 110 2011 10 1.07416e+01 4.30851e+00 148 2011 11 7.78555e+00 5.39077e+00 89 2011 12 1.25606e+01 6.24558e+00 100 2012 1 1.36764e+01 4.06086e+00 107 2012 2 5.77777e+00 2.98425e+00 55 2012 3 4.38128e+00 3.40568e+00 144 2012 4 1.53883e+01 3.35584e+00 106 2012 5 1.81301e+01 1.07846e+00 52 2012 6 8.58665e+00 5.33102e+00 48 2012 7 7.36621e+00 7.21243e+00 41 2012 8 0.00000e+00 0.00000e+00 1 2012 9 2.74850e+00 1.77716e+00 45 2012 10 4.93551e+00 1.60012e+00 140 2012 11 1.71450e+01 2.93800e+00 134 2012 12 1.92814e+01 3.32562e+00 64 2013 1 1.77593e+01 2.69222e+00 92 2013 2 1.45661e+01 4.36499e+00 61 2013 3 1.74821e+00 1.62866e+00 38 2013 4 1.55867e+00 1.81185e-01 9 2013 5 6.64421e+00 5.77386e-01 48 2013 6 nan nan 0 2013 7 7.56400e+00 6.16641e-01 9 2013 8 2.52414e+00 5.49336e-01 48 2013 9 2.75965e+00 2.15861e+00 43 2013 10 8.01532e+00 3.46199e+00 126 2013 11 1.01954e+01 3.85769e+00 69 2013 12 7.35620e+00 4.50819e+00 123 2014 1 5.30976e+00 2.91470e+00 73 2014 2 6.30753e+00 3.06450e+00 102 2014 3 2.74136e+00 1.93002e+00 75 2014 4 3.35282e+00 9.29739e-01 19 2014 5 2.17350e+00 1.22243e+00 54 2014 6 1.11345e+01 3.13096e+00 30 2014 7 1.27996e+01 2.78800e+00 30 2014 8 1.35267e+01 3.26069e+00 50 2014 9 1.05716e+01 5.55803e+00 66 2014 10 1.04508e+01 3.32476e+00 226 2014 11 1.00332e+01 4.63987e+00 136 2014 12 9.82958e+00 6.62783e+00 114 2015 1 1.84210e+00 4.35577e-01 96 2015 2 4.16854e+00 2.27648e+00 84 2015 3 7.29316e+00 2.86936e+00 68 2015 4 1.15386e+01 2.75759e+00 45 2015 5 3.84434e+00 2.77624e+00 68 2015 6 1.04422e+01 1.47924e+00 22 2015 7 1.44240e+01 1.43352e+00 48 2015 8 1.28221e+01 2.97840e+00 53 2015 9 5.98744e+00 4.30633e+00 64 2015 10 1.21875e+01 2.16550e+00 95 2015 11 4.94993e+00 3.84071e+00 96 2015 12 4.38705e+00 2.64526e+00 98 2016 1 5.46550e-01 2.05022e-01 23 2016 2 1.59984e+00 6.34457e-01 41 2016 3 1.31446e+01 6.20391e+00 26 2016 4 1.61780e+00 8.46712e-01 33 2016 5 1.11651e+01 2.28526e+00 48 2016 6 1.47773e+01 2.12276e+00 112 2016 7 1.36950e+01 2.90658e+00 105 2016 8 6.33741e+00 3.80204e+00 49 2016 9 8.35137e+00 3.78761e+00 95 2016 10 8.61721e+00 5.79959e+00 233 2016 11 1.46983e+01 5.95252e+00 155 2016 12 1.04613e+01 2.51968e+00 99 2017 1 3.22266e+00 3.65952e+00 27 2017 2 4.55757e+00 3.32606e+00 108 2017 3 1.07921e+01 5.57107e+00 98 2017 4 1.20217e+01 4.05882e+00 83 2017 5 1.49918e+01 5.88606e+00 84 2017 6 1.12151e+01 3.17428e+00 33 2017 7 7.15693e+00 4.96577e-01 32 2017 8 9.01297e+00 1.36671e+00 32 2017 9 9.56271e+00 1.87816e+00 54 2017 10 9.29412e+00 4.32131e+00 94 2017 11 1.66430e+01 3.66935e+00 201 2017 12 1.75600e+01 6.12889e+00 97 2018 1 1.59997e+01 3.59171e+00 71 2018 2 5.80588e+00 6.72981e+00 72 2018 3 9.46731e+00 4.93024e+00 114 2018 4 1.03307e+01 3.26929e+00 128 2018 5 1.02670e+01 2.63353e+00 88 2018 6 nan nan 0 2018 7 1.45967e+01 4.71133e+00 33 2018 8 4.60348e+00 9.63146e-01 32 2018 9 5.96776e+00 3.29981e+00 142 2018 10 4.48512e+00 3.91219e+00 168 2018 11 5.83459e+00 1.52095e+00 72 2018 12 2.98575e+00 1.56849e+00 41 2019 1 7.48476e-01 5.91334e-01 32 2019 2 4.65843e-01 3.96562e-01 39 2019 3 5.67509e+00 1.31725e+00 98 2019 4 8.56804e+00 2.34649e+00 94 2019 5 7.63097e+00 4.14991e+00 112 2019 6 1.39985e+01 3.18762e+00 48 2019 7 8.52956e+00 3.04362e+00 32 2019 8 1.14469e+01 3.35196e+00 62 2019 9 1.07357e+01 7.78563e+00 137 2019 10 9.83211e+00 5.83655e+00 138 2019 11 1.54139e+01 6.35374e+00 123 2019 12 1.18113e+01 4.39648e-01 16 2020 1 5.74095e+00 1.65084e+00 68 2020 2 2.83381e+00 2.66580e+00 88 2020 3 1.51803e+00 1.04300e+00 29 2020 4 7.17467e+00 3.30738e+00 112 2020 5 6.19708e+00 4.58013e+00 32 2020 6 9.58636e+00 1.95642e+00 32 2020 7 6.90120e+00 2.21411e+00 17 2020 8 1.47724e+01 1.64534e+00 61 2020 9 2.56407e+00 1.01885e+00 48 2020 10 4.15661e+00 3.21230e+00 63 2020 11 7.14923e+00 3.33073e+00 120 2020 12 9.54864e+00 4.38331e+00 202 2021 1 5.67635e+00 3.05839e+00 74 2021 2 2.42702e+00 3.46010e-01 32 2021 3 3.20299e+00 3.22600e+00 43 2021 4 7.33321e+00 1.98145e+00 79 2021 5 7.30027e+00 4.31067e+00 56 2021 6 1.93246e+01 5.80943e-01 16 2021 7 4.78651e+00 3.57247e+00 48 2021 8 3.34045e+00 1.83527e+00 72 2021 9 2.68675e+00 1.07672e+00 44 2021 10 5.45972e+00 3.86023e+00 64 2021 11 1.19261e+01 3.86255e+00 157 2021 12 1.47665e+01 3.75023e+00 51 2022 1 8.83086e+00 3.64514e+00 118 2022 2 1.04948e+01 4.63980e+00 80 2022 3 9.27665e+00 4.48988e+00 84 2022 4 1.39992e+01 3.50470e+00 8 2022 5 1.05950e+01 2.67435e+00 47 2022 6 1.03062e+01 4.98614e+00 68 2022 7 1.21764e+01 4.39692e+00 69 2022 8 1.20374e+01 1.38357e+00 44 2022 9 4.41504e+00 2.60378e+00 40 2022 10 1.26737e+01 5.16161e+00 282 2022 11 1.31252e+01 4.04591e+00 96 2022 12 1.25959e+01 5.47880e+00 142 2023 1 1.49987e+01 3.29345e+00 97 2023 2 4.36145e+00 3.06592e+00 126 2023 3 8.75396e+00 2.70098e+00 101 2023 4 5.61733e+00 7.29615e-01 55 2023 5 4.87291e+00 1.50394e-01 16 2023 6 1.19116e+01 6.88967e+00 57 2023 7 1.01984e+01 7.14158e+00 20 2023 8 8.29220e+00 4.44579e+00 25 2023 9 9.34797e+00 4.37933e+00 124 2023 10 9.07631e+00 3.82494e+00 139 2023 11 1.48611e+01 5.95290e+00 100 2023 12 5.37910e+00 9.71688e-01 32 2024 1 3.76844e+00 2.62850e+00 55 2024 2 3.62755e+00 1.21414e+00 80 2024 3 1.39503e+00 4.04106e-01 32 2024 4 nan nan 0