From the Press Release: "About 64.5 million people did volunteer work at least once from September 2003 to September 2004, the Bureau of Labor Statistics of the U.S. Department
of Labor reported today. The proportion of the population who volunteered during the year held steady at 28.8 percent.
These data on volunteering were collected through a supplement to the September 2004 Current Population Survey (CPS). Volunteers are defined as persons who did unpaid work (except for expenses) through or for an organization. The CPS is a monthly survey of about 60,000 households that obtains information on employment and unemployment among the nation's civilian noninstitutional population age 16 and over."
Source : Bureau of Labor Statistics [via Docuticker]
Link to report page
Subjects : Volunteers -- United States -- Statistics