condition	mean	min	max
0 h after light	9.228765	9.06525	9.39228
4 h after light	7.33061	7.29887	7.36235
8 h after light	7.85722	7.82903	7.88541
4 h after dark	8.127245	7.70946	8.54503
8 h after dark	7.352765	6.95616	7.74937
12 h after dark	7.732685	6.88729	8.57808