The Joint Economic Committee has released Top Half of Taxpayers Pay Highest Tax Share in Decades — New IRS Data Released:

The share of income taxes paid by the top half of taxpayers reached its highest level in decades, according to new IRS data released today [blogged here]. According to the new data, the top half of taxpayers ranked by income paid 96.70 percent of the individual income taxes paid in 2004, compared to 86.05 percent in 1949, 89.35 percent in 1959, and 90.27 percent in 1969.