condition	mean	min	max
4 h after light	7.006875	6.04291	7.97084
8 h after light	3.926105	3.49852	4.35369
12 h after light	3.2042599999999997	3.17387	3.23465
4 h after dark	6.849055	6.39033	7.30778
8 h after dark	9.188839999999999	8.96464	9.41304
12 h after dark	11.226245	9.45939	12.9931