very interesting infographic.

That’s a line for every year from 1913 onward, sized and colored by the tax burden: the amount of tax due relative to the long-term average at each income level. Above-average burdens appear thick and red and below-average thin and blue. We adjusted everything forinflation to ensure an apples-to-apples comparison, with the caveat that the effects of Social Security, Medicare, and other taxes are not included. The underlying data comes from The Tax Foundation, IRS, and Bureau of Labor Statistics, and is the same information we used in last year’s bracket graph, updated for 2011.

Shifting Burdens – U.S. Taxes By Income Level Over The Years.