Iceland
males age 18-49: 56,777 (2005 est.)
India
males age 16-49: 219,471,999 (2005 est.)
Indonesia
males age 18-49: 48,687,234 (2005 est.)
Iran
males age 18-49: 15,665,725 (2005 est.)
Iraq
males age 18-49: 4,930,074 (2005 est.)
Ireland
males age 17-49: 814,768 (2005 est.)
Israel
males age 17-49: 1,255,902
females age 17-49: 1,212,394 (2005 est.)
Italy
males age 18-49: 10,963,513 (2005 est.)
Jamaica
males age 18-49: 587,006 (2005 est.)
Japan
males age 18-49: 22,234,663 (2005 est.)