"For people whose income ranked between the top 1 percent and top 0.5 percent,
the effective tax rate for individual, corporate, payroll and estate was 34.0 percent in 1960, 36.1 percent in 1970, 37.6 percent in 1980, 31.5 percent in 1990, 35.7 percent in 2000 and 31.3 percent in 2004.
For those earning between the top 0.1 percent and 0.5 percent of the income curve, the numbers were 41.4 percent in 1960, 44.6 percent in 1970, 43.0 percent in 1980, 33.0 percent in 1990, 38.4 percent in 2000 and 33.0 percent in 2004.
For those earning between 0.01 percent and 0.1 percent, the rates were 55.3 percent in 1960, 59.1 percent in 1970, 51.0 percent in 1980, 34.3 percent in 1990, 40.2 percent in 2000 and 34.1 percent in 2004.
Finally, for those in the top 0.01 percent of the income distribution, the effective tax rate was 71.4 percent in 1960, 74.6 percent in 1970, 59.3 percent in 1980, 35.4 percent in 1990, 40.8 percent in 2000 and 34.7 percent in 2004."
PolitiFact | Barack Obama says tax rates are lowest since 1950s for CEOs, hedge fund managers
And, 98% of small businesses will not be affected if the tax rate goes up for those making more than $250,000.