condition	mean	min	max
4 h after light	33.9	33.9	33.9
8 h after light	9.3	5.5	13.1
12 h after light	13.2	10.6	15.8
4 h after dark	59.3	54.0	64.6
8 h after dark	34.4	6.5	62.3
12 h after dark	40.3	32.2	48.4