condition	mean	min	max
4 h after light	5.6	5.6	5.6
8 h after light	22.25	4.6	39.9
12 h after light	37.7	31.5	43.9
4 h after dark	6.95	6.9	7.0
8 h after dark	14.65	13.9	15.4
12 h after dark	39.55	31.1	48.0