condition	mean	min	max
4 h after light	9.884421	9.519362	10.24948
8 h after light	8.3720715	7.79588	8.948263
12 h after light	8.905725499999999	8.091745	9.719706
4 h after dark	9.689546	8.948263	10.430829
8 h after dark	9.2107385	8.734388	9.687089
12 h after dark	8.35725	8.35725	8.35725