condition	mean	min	max
4 h after light	4.8	4.8	4.8
8 h after light	5.800000000000001	5.7	5.9
12 h after light	6.6	6.3	6.9
4 h after dark	7.15	6.3	8.0
8 h after dark	5.15	3.8	6.5
12 h after dark	7.5	4.4	10.6