Kauffman bases its entrepreneurial activity index on a monthly population survey jointly sponsored by the Census Bureau and Bureau of Labor Statistics.
August 2005 statistics in the Current Population Survey (CPS) put out by the U.S. Census Bureau indicate that the unemployment rate for U.S. Armed Forces veterans was 3.9%, with 3.4 million Gulf War-era veterans (post 1990) in the labor force whose jobless rate was 5.2%.