CREATE TABLE table_21370 ("Official Name" CLOB, "Status" CLOB, "Area km 2" CLOB, "Population" FLOAT, "Census Ranking" CLOB)

What are the census ranking(s) for a population of 284?
SELECT "Census Ranking" FROM table_21370 WHERE "Population" = '284'
SELECT "Census Ranking" FROM "table_21370" WHERE "Population" = '284'