condition	mean	min	max
4 h after light	8.172739	7.813503	8.531975
8 h after light	8.145828	7.90433	8.387326
12 h after light	8.6954745	7.683118	9.707831
4 h after dark	7.877770999999999	7.345178	8.410364
8 h after dark	8.075811999999999	8.028799	8.122825
12 h after dark	8.174074	8.174074	8.174074