condition	mean	min	max
4 h after light	69.4	69.4	69.4
8 h after light	57.55	39.3	75.8
12 h after light	65.2	39.9	90.5
4 h after dark	75.35	64.3	86.4
8 h after dark	80.3	78.8	81.8
12 h after dark	42.7	30.3	55.1