CREATE TABLE table_53693 ("Home team" CLOB, "Home team score" CLOB, "Away team" CLOB, "Away team score" CLOB, "Venue" CLOB, "Crowd" FLOAT, "Date" CLOB)

What is the average crowd size for Richmond home games?
SELECT AVG("Crowd") FROM table_53693 WHERE "Home team" = 'richmond'
SELECT AVG("Crowd") FROM "table_53693" WHERE "Home team" = 'richmond'