The Great Recession (2007-10)caused big decreases in income for all income groups the greatest being the top 10%. The recovery has increased primarily the income of the top 10%; the bottom 50% actual continued to decrease. The next 40% has a very small increase.
Chart from Federal Reserve System and is quoted in: http://finance.yahoo.com/news/macys-ceo-offers-ominous-insight-172459132.html