condition	mean	min	max
4 h after light	4.0	4.0	4.0
8 h after light	52.05	40.6	63.5
12 h after light	19.1	10.9	27.3
4 h after dark	36.5	16.0	57.0
8 h after dark	28.35	21.8	34.9
12 h after dark	7.75	5.7	9.8