CREATE TABLE table_55304 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

What is the crowd total at mcg?
SELECT COUNT("Crowd") FROM table_55304 WHERE "Venue" = 'mcg'
SELECT COUNT("Crowd") FROM "table_55304" WHERE "Venue" = 'mcg'