condition	mean	min	max
4 h after light	9.5	9.5	9.5
8 h after light	13.75	5.2	22.3
12 h after light	12.65	3.5	21.8
4 h after dark	3.65	2.3	5.0
8 h after dark	15.2	10.4	20.0
12 h after dark	20.0	10.7	29.3