condition	mean	min	max
4 h after light	11.88055	10.1414	13.6197
8 h after light	7.9221	7.86284	7.98136
12 h after light	8.893195	8.03946	9.74693
4 h after dark	13.7115	12.1846	14.4877
8 h after dark	15.0352	13.9077	16.0562
12 h after dark	13.4327	12.1217	14.5967