Percent of the younger than 15 and 65 and older in the USS
Trading young for old: Most countries, including the U.S., are projected to see the share of their population that is 65 and older surpass the share that is younger than 15 by mid-century.
Percent of the younger than 15 and 65 and older in the USS  | 40%  | 30  | 27 a  | 21%  | 22  | 65 and  | 20  | 20  | ooder  | 20  | O 18%  | 19  | than Younger 15  | than Younger 15  | 13  | 12  | 10  | 10  | 8  | 1950  | 1970  | 1990  | 2010  | 2030  | 2050  | Source: United Nations, De partment of Economic fand Social Affairs World Population Prospects: 2012 Revision, June 2013,  | http:ll esa un.org/ 'unpd/wpp/index Jhtm  | PEW RESEARCH CENTER 