CREATE TABLE table_1593 ("Official Name" CLOB, "Status" CLOB, "Area km 2" CLOB, "Population" FLOAT, "Census Ranking" CLOB)

when the population was 1599, what was the census ranking?
SELECT "Census Ranking" FROM table_1593 WHERE "Population" = '1599'
SELECT "Census Ranking" FROM "table_1593" WHERE "Population" = '1599'