OMAHA, Neb. (AP) — A new monthly survey of business leaders suggests the economy  keeps operating at a healthy pace in nine Midwest and Plains states, but supply delays and shortages of workers are limiting growth in the region.

The overall economic index for the region slipped to 68.9 from July’s surging 73.1, but it still indicates strong growth. Any score above 50 on the survey’s indexes suggests growth.

Creighton University economist Ernie Goss said strong job growth continued but businesses are having trouble finding workers to hire.

The monthly survey covers Arkansas, Iowa, Kansas, Minnesota, Missouri, Nebraska, North Dakota, Oklahoma and South Dakota.