condition	mean	min	max
4 h after light	3.4	3.4	3.4
8 h after light	17.05	9.4	24.7
12 h after light	19.2	5.6	32.8
4 h after dark	22.7	6.8	38.6
8 h after dark	4.9	4.8	5.0
12 h after dark	8.25	6.3	10.2