condition	mean	min	max
4 h after light	8.854076666666666	8.78961	8.91622
8 h after light	9.082836666666667	8.956	9.1578
12 h after light	8.95306	8.85196	9.077539999999999
4 h after dark	8.94684	8.785969999999999	9.08966
8 h after dark	8.834719999999999	8.64223	8.95675
12 h after dark	8.33037	7.96899	8.575560000000001