The department has estimated the cost at $600 million, although critics say it would be far higher.

The department estimated that it will respond to about 12,000 calls in 2009.

The department estimated that American demand created a market of $63 billion a year.

Without a professional sports team, the department estimates the operating cost at just over $1 million.

The department estimated that there were 500 to 600 such permits.

The department estimated that three million people now live in areas around airports where noise is a serious problem.

Initially the department had estimated a September deficit of $10.13 billion.

The department estimates that an additional 53,000 civilians will lose their jobs by 1997.

Other Department of Energy officials have estimated a $20 billion total.

The Department of Education estimated the change would cost the government $697 million over 10 years.