In 1970 the typical U.S. household earned only about $8,700. In 2009, the typical U.S. household earned about $50,000. If gross income is adjusted for inflation, the income of the typical U.S. household in 2009
In 1970 the typical U.S. household earned only about $8,700. In 2009, the typical U.S. household earned about $50,000. If gross income is adjusted for inflation, the income of the typical U.S. household in 2009