An Aging World: 2008

Source: Kevin Kinsella and Wan He, U.S. Census Bureau, P95/09-1, June 2009

From the press release:
The average age of the world’s population is increasing at an unprecedented rate. The number of people worldwide 65 and older is estimated at 506 million as of midyear 2008; by 2040, that number will hit 1.3 billion. Thus, in just over 30 years, the proportion of older people will double from 7 percent to 14 percent of the total world population, according to a new report, An Aging World: 2008.
See also:
Why Population Aging Matters: A Global Perspective

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