In a 2003 survey, AARP found that "volunteers who are not employed average 19 hours per month compared to 12 hours by employed individuals, but the not employed are no more likely than the employed to be volunteers or to have regular volunteer commitments." (AARP, 2003: 9).
AARP. (2003, October). 2003 Multicultural Study 2003: Time and Money: An In-Depth Look at 45+ Volunteers and Donors. Washington, DC.
AARP's 2003 multicultural project surveyed 2,069 Americans ages 45 and older by phone interview, aiming to "capture the several ways in which different race and ethnic groups give their time and money to the communities around them." (p.49)