CREATE TABLE table_204_495 (id DECIMAL, "date" TEXT, "opponent" TEXT, "venue" TEXT, "result" TEXT, "attendance" DECIMAL, "scorers" TEXT)

does 15 august 1987 or 18 august 1987 held the more attendance ?
SELECT "date" FROM table_204_495 WHERE "date" IN ('15 august 1987', '18 august 1987') ORDER BY "attendance" DESC LIMIT 1
SELECT "date" FROM "table_204_495" WHERE "date" IN ('15 august 1987', '18 august 1987') ORDER BY "attendance" DESC NULLS LAST LIMIT 1