condition	mean	min	max
4 h after light	3.1	3.1	3.1
8 h after light	13.75	4.3	23.2
12 h after light	4.45	2.5	6.4
4 h after dark	3.05	3.0	3.1
8 h after dark	4.0	2.7	5.3
12 h after dark	5.25	3.2	7.3