condition	mean	min	max
4 h after light	4.1	4.1	4.1
8 h after light	6.5	5.1	7.9
12 h after light	8.45	4.0	12.9
4 h after dark	10.1	8.2	12.0
8 h after dark	5.85	3.8	7.9
12 h after dark	9.4	6.8	12.0