condition	mean	min	max
4 h after light	10.9	10.9	10.9
8 h after light	21.3	16.0	26.6
12 h after light	25.35	24.6	26.1
4 h after dark	28.5	3.2	53.8
8 h after dark	20.05	12.1	28.0
12 h after dark	11.35	9.5	13.2