Volunteers spent a median 52 hours performing volunteer work during the period from September 2001 to September 2002.
While 28.2 percent of volunteers were reported to have spent 100 to 499 hours doing volunteer work, 21.5 percent spent only 1 to 14 hours volunteering. In addition, 5.9 percent of volunteers spent 500 or more hours performing volunteer activities, 14.8 percent spent 50 to 99 hours, and 24.1 percent spent 15 to 49 hours.
College graduates had the highest median annual hours of volunteering (60) among educational attainment groups. Those with less than a high school diploma had the lowest median (48).
Bureau of Labor Statistics, U.S. Department of Labor, The Economics Daily, Hours of volunteer work at https://www.bls.gov/opub/ted/2003/oct/wk4/art01.htm (visited January 29, 2023).