On March 3, 2010 the Economic Policy Institute published this graph that shows the income growth of the top 400 American households compared to the rest of us over a 15-year period.
What it shows is that while pre-tax income grew by a staggering 409% over that 15-year period, after tax income increased even more... by 476%. The third line shows the change in the pre-tax median household income over the same period, which grew only 13.2% (that's us).
The median pre-tax household income for a family of four in 2007 was $50,233, while the top earning 400 households earned a median income of $345 million, almost 6900 times as much income.
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