condition	mean	min	max
4 h after light	5.7	5.7	5.7
8 h after light	17.55	9.5	25.6
12 h after light	19.2	7.3	31.1
4 h after dark	7.65	6.9	8.4
8 h after dark	8.95	7.6	10.3
12 h after dark	25.55	4.6	46.5