[LOOK AT: Tables 2-1. 2-2; Figures: 2-1, 2-2, 2-3, 2-5, 2-7]
Wan He, Daniel Goodkind, and Paul Kowal
U.S. Census Bureau, International Population Reports, P95/16-1, An Aging World: 2015, U.S. Government Publishing Office, Washington, DC, 2016.
Administration on Aging Administration for Community Living U.S. Department of Health and Human Services. (2016). A Profile of Older Americans: 2016 (pp. 1-15).