condition	mean	min	max
4 h after light	2.0	2.0	2.0
8 h after light	8.5	2.0	15.0
12 h after light	3.9	2.3	5.5
4 h after dark	3.8	2.5	5.1
8 h after dark	8.0	6.1	9.9
12 h after dark	3.05	2.8	3.3