condition mean min max 0 h after light 5.444205 5.18068 5.70773 2 h after light 2.9363 2.35442 3.51818 4 h after light 1.8422 1.81944 1.86496 8 h after light 4.09431 3.58297 4.60565 12 h after light 7.787185 6.63181 8.94256 2 h after dark 6.455745 5.64576 7.26573 4 h after dark 9.561695 7.95989 11.1635 8 h after dark 9.960595 9.34729 10.5739 12 h after dark 6.242775 5.01752 7.46803