CREATE TABLE table_33593 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

What did the away team score when the home team scored 9.18 (72)?
SELECT "Away team score" FROM table_33593 WHERE "Home team score" = '9.18 (72)'
SELECT "Away team score" FROM "table_33593" WHERE "Home team score" = '9.18 (72)'