condition	mean	min	max
4 h after light	14.8	14.8	14.8
8 h after light	16.65	4.9	28.4
12 h after light	5.75	4.4	7.1
4 h after dark	9.0	5.9	12.1
8 h after dark	17.45	7.1	27.8
12 h after dark	21.5	20.1	22.9