condition	mean	min	max
4 h after light	6.20351	5.18798	7.21904
8 h after light	7.55633	6.92817	8.18449
12 h after light	9.36985	9.28909	9.45061
4 h after dark	10.2791	9.9643	10.8526
8 h after dark	10.95381	8.90383	12.9822
12 h after dark	6.352673333333334	6.06271	6.54287