It's April 15, tax day in spirit if not in practice this year. The chart above, put together by the Investigative Reporting Workshop, shows that the gap between the share of taxes paid by individuals and the share paid by corporations over time. By now you've probably read or heard about the big story in the New York Times about how G.E. paid far below the putative 35 percent corporate tax rate in the United States on its $14.2 billion in global profits last year. Similarly, maybe you checked out David Cay Johnson's excellent "9 Things the Rich Don't Want You to Know About Taxes" in Willamette Week from Wednesday, that talked about various ways wealthy individuals pay less in taxes, strangely reminiscent of the tax perks enjoyed by corporations. The point is there's a chance you've noticed that these types of stories are everywhere. Here's a chart to illustrate one aspect of a debate that continues to provoke impassioned responses on both sides.