In 1988, the income of an average American taxpayer was $33,400, adjusted for inflation. Fast forward 20 years, and not much had changed: The average income was still just $33,000 in 2008, according to IRS data.
Meanwhile, the richest 1% of Americans -- those making $380,000 or more -- have seen their incomes grow 33% over the last 20 years, leaving average Americans in the dust.
From: http://money.cnn.com/2011/02/16/news/economy/middle_class/index.htm
