condition	mean	min	max
4 h after light	2.3	2.3	2.3
8 h after light	5.3	2.5	8.1
12 h after light	18.25	3.4	33.1
4 h after dark	7.45	3.9	11.0
8 h after dark	29.1	25.8	32.4
12 h after dark	3.8	3.1	4.5