condition	mean	min	max
4 h after light	3.2	3.2	3.2
8 h after light	7.75	7.0	8.5
12 h after light	4.0	3.7	4.3
4 h after dark	9.6	9.1	10.1
8 h after dark	22.05	15.1	29.0
12 h after dark	6.45	6.4	6.5