condition	mean	min	max
4 h after light	5.5	5.5	5.5
8 h after light	16.0	12.0	20.0
12 h after light	27.55	4.6	50.5
4 h after dark	15.2	5.5	24.9
8 h after dark	7.0	6.2	7.8
12 h after dark	5.45	5.2	5.7