condition	mean	min	max
4 h after light	9.035353333333333	8.70963	9.382710000000001
8 h after light	9.09924	8.86177	9.36173
12 h after light	9.125663333333334	8.803560000000001	9.38764
4 h after dark	9.415799999999999	8.89513	9.875689999999999
8 h after dark	9.49981	9.1284	9.78383
12 h after dark	9.239283333333333	9.03178	9.46143