condition	mean	min	max
4 h after light	0.9	0.9	0.9
8 h after light	1.35	1.0	1.7
12 h after light	4.05	2.4	5.7
4 h after dark	1.55	1.1	2.0
8 h after dark	1.5	1.3	1.7
12 h after dark	2.3	1.8	2.8