condition	mean	min	max
4 h after light	61.9	61.9	61.9
8 h after light	75.15	74.3	76.0
12 h after light	75.5	63.5	87.5
4 h after dark	59.0	34.2	83.8
8 h after dark	47.55	33.2	61.9
12 h after dark	53.25	39.2	67.3