condition mean min max 4 h after light 0.918156 0.771622 1.06469 8 h after light 1.6444450000000002 1.17974 2.10915 12 h after light 1.37899 1.22894 1.52904 4 h after dark 1.9664099999999998 1.4866 2.33098 8 h after dark 2.4171633333333333 1.80062 3.2929 12 h after dark 1.4967233333333334 1.05858 2.13848