condition	mean	min	max
4 h after light	5.1	5.1	5.1
8 h after light	6.85	6.1	7.6
12 h after light	28.5	14.7	42.3
4 h after dark	9.65	4.9	14.4
8 h after dark	11.4	3.5	19.3
12 h after dark	10.75	6.0	15.5