condition	mean	min	max
4 h after light	8.1	8.1	8.1
8 h after light	7.1	4.2	10.0
12 h after light	20.6	6.1	35.1
4 h after dark	33.45	15.9	51.0
8 h after dark	7.8	2.1	13.5
12 h after dark	1.7	0.9	2.5