CREATE TABLE table_74577 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

What was the crowd when Melbourne was the home team?
SELECT AVG("Crowd") FROM table_74577 WHERE "Home team" = 'melbourne'
SELECT AVG("Crowd") FROM "table_74577" WHERE "Home team" = 'melbourne'