condition	mean	min	max
4 h after light	10.0	10.0	10.0
8 h after light	10.0	4.5	15.5
12 h after light	4.75	1.5	8.0
4 h after dark	17.45	14.4	20.5
8 h after dark	9.5	0.2	18.8
12 h after dark	8.8	4.7	12.9