condition	mean	min	max
4 h after light	3.4	3.4	3.4
8 h after light	8.35	5.3	11.4
12 h after light	3.5	2.1	4.9
4 h after dark	4.1	2.4	5.8
8 h after dark	7.4	6.8	8.0
12 h after dark	20.8	9.1	32.5