A History of American Corporate Taxation - Who Wins and Who Loses?

http://viableopposition.blogspot.ca/2014/04/a-history-of-american-corporate.html

America's corporate income tax is one of the most poorly understood aspects of the nation's tax system.  With the constant rumblings emanating from Washington about a revamping of the corporate tax rate, I thought that it was a good time for a background look at the history of the current system.

While stumbling around the Federal Reserve Bank of St. Louis economic data website (also known as FRED), I found this rather interesting graph showing the ratio between federal tax receipts on corporate income and corporate after tax profits: