CREATE TABLE table_53056 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

What is the size of the crowd at the game where the home team scored 10.8 (68)?
SELECT AVG("Crowd") FROM table_53056 WHERE "Home team score" = '10.8 (68)'
SELECT AVG("Crowd") FROM "table_53056" WHERE "Home team score" = '10.8 (68)'