condition mean min max 4 h after light 4.7530133333333335 4.70443 4.8182 8 h after light 4.82238 4.6382699999999994 4.96251 12 h after light 4.63843 4.45432 4.75546 4 h after dark 4.739316666666666 4.59858 4.81801 8 h after dark 4.74532 4.67406 4.79119 12 h after dark 4.730596666666666 4.67052 4.8415099999999995