condition	mean	min	max
4 h after light	12.25005	11.8891	12.611
8 h after light	8.20937	7.90953	8.50921
12 h after light	9.62293	8.72266	10.5232
4 h after dark	13.6439	13.0687	14.1542
8 h after dark	14.283066666666667	12.6241	15.5667
12 h after dark	15.777366666666667	15.0785	16.7269