condition	mean	min	max
4 h after light	10.5	10.5	10.5
8 h after light	8.35	4.5	12.2
12 h after light	8.25	7.7	8.8
4 h after dark	14.45	11.1	17.8
8 h after dark	11.05	3.0	19.1
12 h after dark	7.1	4.0	10.2