clipped from thinkprogress.org

Bloomberg reports that, according to recently released IRS data, “the average tax rate paid by the richest 400 Americans fell by a third to 17.2 percent through the first six years of the Bush administration and their average income doubled to $263.3 million.” Much of their income came from capital gains resulting from the Bush tax cuts:

The drop from 2001’s tax rate of 22.9 percent was due largely to ex-President George W. Bush’s push to cut tax rates on most capital gains to 15 percent in 2003

Capital gains made up 63 percent of the richest 400 Americans’ adjusted gross income in 2006, or a combined $66.1 billion, according to the data. In all, the 400 wealthiest Americans reported a combined $105.3 billion of adjusted gross income in 2006, the most recent year for which the IRS has data.