condition	mean	min	max
4 h after light	16.5	16.5	16.5
8 h after light	13.7	11.1	16.3
12 h after light	13.4	10.2	16.6
4 h after dark	14.35	7.7	21.0
8 h after dark	30.6	9.5	51.7
12 h after dark	13.75	9.4	18.1