condition	mean	min	max
4 h after light	6.5	6.5	6.5
8 h after light	2.05	1.9	2.2
12 h after light	9.6	3.9	15.3
4 h after dark	5.05	2.3	7.8
8 h after dark	3.45	2.2	4.7
12 h after dark	3.4	1.8	5.0