condition	mean	min	max
4 h after light	4.1	4.1	4.1
8 h after light	22.95	3.9	42.0
12 h after light	40.05	33.9	46.2
4 h after dark	35.55	13.2	57.9
8 h after dark	28.2	25.2	31.2
12 h after dark	12.65	5.5	19.8