condition	mean	min	max
4 h after light	7.517435	7.4882	7.54667
8 h after light	7.02504	6.96435	7.08573
12 h after light	8.64262	8.44455	8.84069
4 h after dark	12.323699999999999	10.953	13.6944
8 h after dark	12.38185	11.6956	13.0681
12 h after dark	11.439599999999999	10.8943	11.9849