Israel
males age 16-49: 1,452,926
females age 16-49: 1,383,796 (2008 est.)
Italy
males age 16-49: 11,285,488
females age 16-49: 10,680,672 (2008 est.)
Jamaica
males age 16-49: 566,477
females age 16-49: 583,075 (2008 est.)
Japan
males age 16-49: 22.963 million
females age 16-49: 22,134,127 (2008 est.)
Jordan
males age 16-49: 1,546,766
females age 16-49: 1,339,366 (2008 est.)
Kazakhstan
males age 16-49: 2,871,205
females age 16-49: 3,551,032 (2008 est.)
Kenya
males age 16-49: 5,688,259
females age 16-49: 5,396,166 (2008 est.)
Kiribati
males age 16-49: 17,577 (2008 est.)
Korea, North
males age 16-49: 5,141,240
females age 16-49: 5,139,447 (2008 est.)
Korea, South
males age 16-49: 11,282,699
females age 16-49: 10,683,668 (2008 est.)