condition	mean	min	max
4 h after light	38.4	38.4	38.4
8 h after light	41.5	27.2	55.8
12 h after light	74.15	66.3	82.0
4 h after dark	83.55	80.8	86.3
8 h after dark	85.75	83.2	88.3
12 h after dark	83.6	73.4	93.8