condition mean min max 4 h after light 5.7290833333333335 3.25593 8.30865 8 h after light 2.8904699999999997 1.22243 4.5196 12 h after light 3.3861700000000003 2.19498 4.70288 4 h after dark 4.97293 3.56598 6.10975 8 h after dark 6.210776666666667 4.20907 7.68189 12 h after dark 7.484673333333333 6.00714 10.0089