condition	mean	min	max
4 h after light	1.4	1.4	1.4
8 h after light	2.9	2.5	3.3
12 h after light	1.75	1.1	2.4
4 h after dark	8.45	4.8	12.1
8 h after dark	1.6	1.0	2.2
12 h after dark	3.05	1.6	4.5