condition mean min max 4 h after light 3.566335 3.18378 3.94889 8 h after light 4.63505 3.22437 6.04573 12 h after light 3.40749 2.08941 4.72557 4 h after dark 6.5845400000000005 6.28512 6.88396 8 h after dark 6.639075 6.20953 7.06862 12 h after dark 5.3442050000000005 4.57514 6.11327