females age 16-49: 19,827,538 (2008 est.)

Poland
males age 16-49: 7,937,840
females age 16-49: 7,949,677 (2008 est.)

Portugal
males age 16-49: 2,099,647
females age 16-49: 2,060,559 (2008 est.)

Qatar
males age 16-49: 258,159
females age 16-49: 143,999 (2008 est.)

Romania
males age 16-49: 4,572,017
females age 16-49: 4,644,474 (2008 est.)

Russia
males age 16-49: 21,488,878
females age 16-49: 28,760,976 (2008 est.)

Rwanda
males age 16-49: 1,404,066
females age 16-49: 1,403,700 (2008 est.)

Saint Kitts and Nevis
males age 16-49: 8,064
females age 16-49: 8,464 (2008 est.)

Saint Lucia
males age 16-49: 38,660 (2008 est.)

Saint Vincent and the Grenadines
males age 16-49: 28,518 (2008 est.)

Samoa
males age 16-49: 42,359 (2008 est.)

San Marino
males age 16-49: 5,345 (2008 est.)

Sao Tome and Principe
males age 16-49: 33,735
females age 16-49: 36,779 (2008 est.)

Saudi Arabia
males age 16-49: 7,398,417
females age 16-49: 5,525,357 (2008 est.)

Senegal
males age 16-49: 1,866,602
females age 16-49: 1,947,076 (2008 est.)

Seychelles
males age 16-49: 17,942
females age 16-49: 20,436 (2008 est.)

Sierra Leone
males age 16-49: 671,418 (2008 est.)

Singapore
males age 16-49: 1,038,603 (2008 est.)

Slovakia
males age 16-49: 1,166,833
females age 16-49: 1,156,874 (2008 est.)

Slovenia
males age 16-49: 406,951
females age 16-49: 395,444 (2008 est.)

Solomon Islands
males age 16-49: 116,891 (2008 est.)

Somalia
males age 16-49: 1,274,783
females age 16-49: 1,317,991 (2008 est.)

South Africa
males age 16-49: 6,042,498
females age 16-49: 5,471,103 (2008 est.)

Spain
males age 16-49: 8,228,426
females age 16-49: 7,990,678 (2008 est.)

Sri Lanka
males age 16-49: 4,477,437
females age 16-49: 4,683,716 (2008 est.)

Sudan
males age 16-49: 5,586,468
females age 16-49: 5,678,427 (2008 est.)

Suriname
males age 16-49: 105,770
females age 16-49: 109,666 (2008 est.)

Swaziland
males age 16-49: 122,260 (2008 est.)

Sweden
males age 16-49: 1,699,115
females age 16-49: 1,637,868 (2008 est.)

Switzerland
males age 16-49: 1,513,984
females age 16-49: 1,478,761 (2008 est.)

Syria
males age 16-49: 4,242,401
females age 16-49: 4,218,648 (2008 est.)

Taiwan
males age 16-49: 5,112,737
females age 16-49: 5,036,346 (2008 est.)

Tajikistan
males age 16-49: 1,391,