CREATE TABLE table_52815 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

How big of a crowd does the home team of essendon have?
SELECT "Crowd" FROM table_52815 WHERE "Home team" = 'essendon'
SELECT "Crowd" FROM "table_52815" WHERE "Home team" = 'essendon'