CREATE TABLE table_1602 ("Official Name" TEXT, "Status" TEXT, "Area km 2" TEXT, "Population" FLOAT, "Census Ranking" TEXT)

What is the census ranking when the area is 78.67 ?
SELECT "Census Ranking" FROM table_1602 WHERE "Area km 2" = '78.67'
SELECT "Census Ranking" FROM "table_1602" WHERE "Area km 2" = '78.67'