condition	mean	min	max
4 h after light	5.913295	5.26924	6.55735
8 h after light	4.91976	4.73579	5.10373
12 h after light	5.433835	4.74077	6.1269
4 h after dark	7.085315	6.63987	7.53076
8 h after dark	7.48606	7.38001	7.59211
12 h after dark	6.865135	6.5317	7.19857