condition	mean	min	max
4 h after light	2.4	2.4	2.4
8 h after light	2.35	2.2	2.5
12 h after light	2.1	1.7	2.5
4 h after dark	1.6	1.1	2.1
8 h after dark	2.75	2.2	3.3
12 h after dark	1.15	1.0	1.3