condition	mean	min	max
4 h after light	4.2	4.2	4.2
8 h after light	7.0	3.0	11.0
12 h after light	4.95	2.2	7.7
4 h after dark	22.1	1.7	42.5
8 h after dark	6.5	4.4	8.6
12 h after dark	7.6	6.5	8.7