condition	mean	min	max
4 h after light	13.5	13.5	13.5
8 h after light	12.35	9.2	15.5
12 h after light	30.35	9.7	51.0
4 h after dark	19.7	15.7	23.7
8 h after dark	13.05	8.9	17.2
12 h after dark	11.95	10.2	13.7