condition	mean	min	max
4 h after light	38.7	38.7	38.7
8 h after light	32.5	9.1	55.9
12 h after light	22.95	22.2	23.7
4 h after dark	9.05	4.0	14.1
8 h after dark	48.55	41.6	55.5
12 h after dark	80.9	77.2	84.6