condition	mean	min	max
4 h after light	12.2	12.2	12.2
8 h after light	10.9	0.8	21.0
12 h after light	3.3	1.6	5.0
4 h after dark	7.8	2.4	13.2
8 h after dark	2.7	2.6	2.8
12 h after dark	4.05	0.7	7.4