condition	mean	min	max
4 h after light	5.8	5.8	5.8
8 h after light	3.25	2.8	3.7
12 h after light	7.2	3.9	10.5
4 h after dark	5.25	4.6	5.9
8 h after dark	4.9	3.2	6.6
12 h after dark	5.05	3.5	6.6