business insider had these:And today,
3. Wages as % of US GDP, 1940-2012
4. Corporate Profits as % of US GDP, 1940-2012
Conclusion: the US is taxing the easy-to-tax (see red & blue lines in the first chart), but the easy to tax have less and less at their disposal (chart 2 & 3); the US is not taxing the hard-to-tax (green line in chart 1), but the hard to tax have more and more at their disposal (chart 4). This is the real fiscal cliff.