http://i51.tinypic.com/1h9zio.png
Chart I did using BLS data combining total full time wage and salary workers * average weekly earnings. CPI adjusted to 1982-1984 chained dollars. From the 2007 peak, the total basket of people in full-time jobs are making exactly $100 billion dollars less, in real terms, than in 2007. They are making $20 billion less than last year.
May help explain in part why we're having budget issues. Less income = less income tax and less income available for expenditures = less sales tax.