In 2003, the top 20 percent, or wealthiest fifth, of U.S. households earned _____.
less than the bottom four fifths combined
less than the bottom three fifths combined
more than the bottom four fifths combined
about the same as the bottom four fifths combined
less than the bottom four fifths combined
less than the bottom three fifths combined
more than the bottom four fifths combined
about the same as the bottom four fifths combined