condition	mean	min	max
4 h after light	8.012706666666666	7.698989999999999	8.26355
8 h after light	7.60403	7.282939999999999	7.91538
12 h after light	7.04152	6.855289999999999	7.274710000000001
4 h after dark	7.679986666666666	7.382739999999999	7.84475
8 h after dark	8.060996666666666	7.7279	8.238439999999999
12 h after dark	8.72342	8.50874	9.002310000000001