condition	mean	min	max
4 h after light	0.8	0.8	0.8
8 h after light	1.7	1.0	2.4
12 h after light	1.0	0.9	1.1
4 h after dark	1.2	1.2	1.2
8 h after dark	1.05	0.9	1.2
12 h after dark	0.95	0.9	1.0