The Site is again: IRS.GOV. How many times? It's the site of the U.S. Revenue Service, not some blog. Go on there and look under stats in one of the headings. There is every peice of data that exists concerning taxes and wealth on that site. Where do you think these other sites get their info; you think they spend a couple million dollars researching this stuff every year? They get all the info from the IRS; they just disremmember to show ALL the information. The 8% comes from income generated but not taxed. That will be shown.