condition	mean	min	max
4 h after light	2.3	2.3	2.3
8 h after light	6.0	1.2	10.8
12 h after light	8.75	3.3	14.2
4 h after dark	1.85	1.0	2.7
8 h after dark	1.75	1.3	2.2
12 h after dark	13.45	4.5	22.4