condition	mean	min	max
4 h after light	2.1	2.1	2.1
8 h after light	9.299999999999999	2.4	16.2
12 h after light	13.35	1.2	25.5
4 h after dark	2.9000000000000004	2.1	3.7
8 h after dark	6.85	3.0	10.7
12 h after dark	20.85	19.2	22.5