condition	mean	min	max
4 h after light	8.387326	8.387326	8.387326
8 h after light	8.321363000000002	8.020497	8.622229
12 h after light	7.832774000000001	7.725874	7.939674
4 h after dark	8.506508	8.164819	8.848197
8 h after dark	8.730563	8.559641	8.901485
12 h after dark	8.609242	8.609242	8.609242