condition	mean	min	max
4 h after light	21.2	21.2	21.2
8 h after light	19.2	6.4	32.0
12 h after light	11.25	7.4	15.1
4 h after dark	3.8	2.6	5.0
8 h after dark	10.75	9.1	12.4
12 h after dark	6.45	6.4	6.5