condition	mean	min	max
4 h after light	5.0	5.0	5.0
8 h after light	1.15	0.6	1.7
12 h after light	9.6	0.8	18.4
4 h after dark	4.3	2.4	6.2
8 h after dark	8.8	5.3	12.3
12 h after dark	11.2	8.4	14.0