Iceland
males age 18-49: 69,038 (2005 est.)
India
males age 16-49: 287,551,111
females age 16-49: 268,524,835 (2005 est.)
Indonesia
males age 18-49: 60,543,028
females age 18-49: 59,981,730 (2005 est.)
Iran
males age 18-49: 18,319,545
females age 18-49: 17,541,037 (2005 est.)
Iraq
males age 18-49: 5,870,640
females age 18-49: 5,642,073 (2005 est.)
Ireland
males age 17-49: 977,092
females age 17-49: 978,465 (2005 est.)
Israel
males age 17-49: 1,492,125
females age 17-49: 1,443,916 (2005 est.)
Italy
males age 18-49: 13,491,260
females age 18-49: 12,886,033 (2005 est.)
Jamaica
males age 18-49: 592,018
females age 18-49: 616,500 (2005 est.)
Japan
males age 18-49: 27,003,112
females age 18-49: 26,153,482 (2005 est.)