condition	mean	min	max
4 h after light	2.4	2.4	2.4
8 h after light	8.05	1.1	15.0
12 h after light	18.2	11.2	25.2
4 h after dark	12.35	4.0	20.7
8 h after dark	23.45	14.0	32.9
12 h after dark	7.95	1.4	14.5