condition	mean	min	max
4 h after light	4.0	4.0	4.0
8 h after light	6.800000000000001	5.2	8.4
12 h after light	3.0	1.8	4.2
4 h after dark	2.3	1.8	2.8
8 h after dark	5.65	3.2	8.1
12 h after dark	6.15	4.3	8.0