condition	mean	min	max
4 h after light	2.2	2.2	2.2
8 h after light	4.9	4.9	4.9
12 h after light	5.5	3.5	7.5
4 h after dark	8.75	3.6	13.9
8 h after dark	3.6	2.0	5.2
12 h after dark	14.7	11.0	18.4