San Marino
purchasing power parity - $34,600 (2001 est.)
Sao Tome and Principe
purchasing power parity - $1,200 (2003 est.)
Saudi Arabia
purchasing power parity - $11,800 (2003 est.)
Senegal
purchasing power parity - $1,600 (2003 est.)
Serbia and Montenegro
purchasing power parity - $2,200 (2003 est.)
Seychelles
purchasing power parity - $7,800 (2002 est.)
Sierra Leone
purchasing power parity - $500 (2003 est.)
Singapore
purchasing power parity - $23,700 (2003 est.)
Slovakia
purchasing power parity - $13,300 (2003 est.)
Slovenia
purchasing power parity - $19,000 (2003 est.)