According to new U.S. Census Bureau Statistics, the economic difficulties have hit Middle-and low-income families hardest, widening the gap between them and the rich. Lower income boosted poverty rates in 31 states and Washington, D.C.,from 2007 to 2008, compared with increases in just 10 states The year before. Overall, the U.S. rate his an 11-year of 13.2% , while the number of Americans receiving food stamps rose 13%.