condition	mean	min	max
4 h after light	8.2	8.2	8.2
8 h after light	14.95	3.4	26.5
12 h after light	6.9	5.9	7.9
4 h after dark	4.1	2.6	5.6
8 h after dark	21.75	3.6	39.9
12 h after dark	3.35	2.0	4.7