condition	mean	min	max
4 h after light	11.2	11.2	11.2
8 h after light	10.75	7.6	13.9
12 h after light	8.7	7.5	9.9
4 h after dark	13.5	11.5	15.5
8 h after dark	5.05	4.3	5.8
12 h after dark	7.25	5.3	9.2