condition	mean	min	max
4 h after light	18.6	18.6	18.6
8 h after light	4.5	2.0	7.0
12 h after light	3.6	2.2	5.0
4 h after dark	3.45	2.1	4.8
8 h after dark	10.75	4.9	16.6
12 h after dark	10.950000000000001	5.3	16.6