condition	mean	min	max
4 h after light	6.9515705	6.657442	7.245699
8 h after light	7.1260185	7.086326	7.165711
12 h after light	6.837192	6.760096	6.914288
4 h after dark	6.9718885	6.857451	7.086326
8 h after dark	6.6632465	6.205652	7.120841
12 h after dark	7.962564	7.962564	7.962564