condition	mean	min	max
4 h after light	1.3	1.3	1.3
8 h after light	3.05	2.2	3.9
12 h after light	3.45	2.1	4.8
4 h after dark	2.5	1.8	3.2
8 h after dark	4.05	2.6	5.5
12 h after dark	4.0	1.8	6.2