condition	mean	min	max
4 h after light	9.3	9.3	9.3
8 h after light	10.5	5.7	15.3
12 h after light	7.75	7.4	8.1
4 h after dark	4.35	2.3	6.4
8 h after dark	30.5	28.1	32.9
12 h after dark	4.4	4.0	4.8