condition	mean	min	max
4 h after light	2.7	2.7	2.7
8 h after light	7.05	5.1	9.0
12 h after light	3.3	2.3	4.3
4 h after dark	3.75	2.6	4.9
8 h after dark	2.9	2.8	3.0
12 h after dark	5.25	5.1	5.4