condition	mean	min	max
4 h after light	33.2	33.2	33.2
8 h after light	14.7	11.1	18.3
12 h after light	6.45	6.4	6.5
4 h after dark	17.7	16.0	19.4
8 h after dark	5.65	4.5	6.8
12 h after dark	6.45	4.1	8.8