condition	mean	min	max
4 h after light	7.1	7.1	7.1
8 h after light	5.2	2.9	7.5
12 h after light	17.75	10.5	25.0
4 h after dark	10.8	3.0	18.6
8 h after dark	15.65	8.7	22.6
12 h after dark	6.85	3.1	10.6