condition	mean	min	max
4 h after light	3.2	3.2	3.2
8 h after light	5.0	4.7	5.3
12 h after light	2.35	1.7	3.0
4 h after dark	3.4	3.0	3.8
8 h after dark	17.4	2.3	32.5
12 h after dark	4.1	2.0	6.2