You sure about that? With such a large Hispanic population in this country, I find it hard to believe that our pc-infected government wouldn't list them as a separate ethnic group.
http://www.census.gov/population/www/socdemo/race/racefactcb.html
“People of Hispanic origin may be of any race and should answer the question on race by marking one or more race categories shown on the questionnaire, including White, Black or African American, American Indian or Alaska Native, Asian, Native Hawaiian or Other Pacific Islander, and Some Other Race. Hispanics are asked to indicate their origin in the question on Hispanic origin, not in the question on race, because in the federal statistical system ethnic origin is considered to be a separate concept from race.”