CREATE TABLE table_74721 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

What is the average crowd to watch Hawthorn as the away team?
SELECT AVG("Crowd") FROM table_74721 WHERE "Away team" = 'hawthorn'
SELECT AVG("Crowd") FROM "table_74721" WHERE "Away team" = 'hawthorn'