Question: Which Worldwide ranking has a 2009 larger than 185969, and a Country of Rwanda?
SQL: SELECT "Worldwide ranking" FROM "2-18600121-4" WHERE "2009" > 185969.0 AND "Country" = 'Rwanda';

Question: Which Country has a 2009 larger than 527180, and a Worldwide ranking of 666?
SQL: SELECT "Country" FROM "2-18600121-4" WHERE "2009" > 527180.0 AND "Worldwide ranking" = '666';