condition	mean	min	max
4 h after light	4.5	4.5	4.5
8 h after light	10.25	9.2	11.3
12 h after light	7.05	4.5	9.6
4 h after dark	20.7	14.0	27.4
8 h after dark	10.8	3.1	18.5
12 h after dark	7.1	5.3	8.9