Sri Lanka
males age 16-49: 5,493,050
females age 16-49: 5,622,632 (2010 est.)
Sudan
males age 16-49: 10,264,087
females age 16-49: 9,894,457 (2010 est.)
Suriname
males age 16-49: 133,417
females age 16-49: 133,487 (2010 est.)
Swaziland
males age 16-49: 336,436 (2010 est.)
Sweden
males age 16-49: 2,065,782
females age 16-49: 1,995,451 (2010 est.)
Switzerland
males age 16-49: 1,839,382
females age 16-49: 1,797,317 (2010 est.)
Syria
males age 16-49: 5,766,853
females age 16-49: 5,540,828 (2010 est.)
Taiwan
males age 16-49: 6,218,009
females age 16-49: 6,038,964 (2010 est.)
Tajikistan
males age 16-49: 1,980,012
females age 16-49: 1,990,084 (2010 est.)
Tanzania
males age 16-49: 9,683,768 (2010 est.)