The Census Bureau reports that 18.6%, or 44.8 million, of noninstitutionalized civilians participated in one or more major means-tested assistance programs (Temporary Assistance for Needy Families  (TANF), General Assistance (GA), Supplemental Nutrition Assistance Program (SNAP)/Food Stamps, Supplemental Security Income (SSI), Medicaid, and Housing Assistance).  This percentage is up from 17.1% in 2004, driven mostly by a 2.6 percent increase in citizens who receive Food Stamps.  The average monthly participation rate for those under 18 was 34.6% in 2009, far greater than the 13.7% and 12.6% for civilians aged 18 to 64 and 65 years and over respectively.  Blacks and Hispanics were the most likely races to utilize means-tested programs.  38.9% of Blacks, 33.0% of Hispanics, 14.9% of Asian and Pacific Islanders, and 11.8% of Non-Hispanic Whites participated in means-tested programs.