The UNECE has 55 member countries:
See also: Europe, European Union, Council of Europe, OSCE, OECD
External Link
UNECE Website (http://www.unece.org)
... 45 to 64, and 9.6% who are 65 years of age or older. The median age is 35 years. For every 100 females there are 96.9 males. For every 100 females age 18 and over, ...