CREATE TABLE table_52621 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

Which Date has an Away team score of 11.7 (73)?
SELECT "Date" FROM table_52621 WHERE "Away team score" = '11.7 (73)'
SELECT "Date" FROM "table_52621" WHERE "Away team score" = '11.7 (73)'