condition	mean	min	max
4 h after light	21.2	21.2	21.2
8 h after light	69.7	55.1	84.3
12 h after light	69.1	30.9	107.3
4 h after dark	81.45	73.9	89.0
8 h after dark	70.75	54.1	87.4
12 h after dark	93.7	83.2	104.2