CREATE TABLE table_21364 ("Official Name" CLOB, "Status" CLOB, "Area km 2" CLOB, "Population" FLOAT, "Census Ranking" CLOB)

If the census ranking is 231 of 5,008, what was the population?
SELECT "Population" FROM table_21364 WHERE "Census Ranking" = '231 of 5,008'
SELECT "Population" FROM "table_21364" WHERE "Census Ranking" = '231 of 5,008'