condition	mean	min	max
4 h after light	5.7	5.7	5.7
8 h after light	3.75	2.5	5.0
12 h after light	7.6	7.5	7.7
4 h after dark	4.15	2.8	5.5
8 h after dark	4.4	3.8	5.0
12 h after dark	10.75	3.8	17.7