condition	mean	min	max
4 h after light	6.864295	6.47063	7.25796
8 h after light	7.40383	6.71598	8.09168
12 h after light	7.6126249999999995	7.56979	7.65546
4 h after dark	13.591149999999999	12.2183	14.964
8 h after dark	11.5899	10.8521	12.3277
12 h after dark	9.63409	9.36336	9.90482