The General Services Administration (GSA), the federal government’s housekeeping agency, pays $13 million in annual rent for 189 rental properties that were less than 1 percent “occupied” for nearly half of last year, according to an analysis of GSA leasing inventory data by The Washington Examiner.

And GSA pays $600 million in annual rent for at least 2,000 rental properties that were less than 10 percent occupied during that time, the analysis found.

All of the properties are managed by GSA’s Public Buildings Service (PBS), which negotiates the leases and assigns the space to federal departments and agencies.