condition	mean	min	max
4 h after light	8.8	8.8	8.8
8 h after light	8.1	6.5	9.7
12 h after light	8.4	6.8	10.0
4 h after dark	4.25	4.1	4.4
8 h after dark	7.35	5.3	9.4
12 h after dark	9.25	8.3	10.2