condition	mean	min	max
4 h after light	8.6	8.6	8.6
8 h after light	8.1	3.0	13.2
12 h after light	7.2	3.5	10.9
4 h after dark	5.7	4.9	6.5
8 h after dark	4.25	3.9	4.6
12 h after dark	9.65	2.8	16.5