condition mean min max 4 h after light 2.293515 2.12404 2.46299 8 h after light 2.58754 2.07148 3.1036 12 h after light 2.2544750000000002 1.96136 2.54759 4 h after dark 2.4051833333333335 2.19008 2.68284 8 h after dark 3.262183333333333 2.27398 4.86327 12 h after dark 2.59253 2.2931 2.85912