condition	mean	min	max
4 h after light	1.0	1.0	1.0
8 h after light	4.6	3.6	5.6
12 h after light	0.9	0.7	1.1
4 h after dark	8.8	1.5	16.1
8 h after dark	14.6	1.7	27.5
12 h after dark	2.05	1.7	2.4