Top marginal tax rates

Recently some rich people in France and US have asked the government to increase their own taxes. Some comparisons are awkward like the amount paid in taxes by Buffet or Romney which is around 15% (several percentage points below a middle class American).
The following is a nice graph that shows the evolution of the top marginal tax rates since 1916.



It can be found at: http://visualizingeconomics.com/2012/01/24/comparing-tax-rates/