The 2001 CIA World Factbook

by United States. Central Intelligence Agency

Sri Lanka:
3.85 million (1997)

Sudan:
7.55 million (1997)

Suriname:
300,000 (1997)

Svalbard:
NA

Swaziland:
155,000 (1997)

Sweden:
8.25 million (1997)

Switzerland:
7.1 million (1997)

Syria:
4.15 million (1997)

Tajikistan:
1.291 million (1991)

Tanzania:
8.8 million (1997)