Qatar
males age 16-49: 320,277
females age 16-49: 138,558 (2010 est.)
Romania
males age 16-49: 4,513,619
females age 16-49: 4,566,620 (2010 est.)
Russia
males age 16-49: 20,746,777
females age 16-49: 27,174,148 (2010 est.)
Rwanda
males age 16-49: 1,641,563
females age 16-49: 1,696,514 (2010 est.)
Saint Barthelemy
males age 16-49: 1,543
females age 16-49: 1,303 (2010 est.)
Saint Helena, Ascension, and Tristan da Cunha
males age 16-49: 1,575
females age 16-49: 1,591 (2010 est.)
Saint Kitts and Nevis
males age 16-49: 10,736
females age 16-49: 10,913 (2010 est.)
Saint Lucia
males age 16-49: 32,406
females age 16-49: 36,216 (2010 est.)
Saint Martin
males age 16-49: 6,391
females age 16-49: 6,947 (2010 est.)
Saint Pierre and Miquelon
males age 16-49: 1,097
females age 16-49: 1,096 (2010 est.)