condition	mean	min	max
4 h after light	31.3	31.3	31.3
8 h after light	2.85	1.5	4.2
12 h after light	16.35	1.6	31.1
4 h after dark	18.0	4.1	31.9
8 h after dark	11.65	3.3	20.0
12 h after dark	9.55	8.5	10.6