CREATE TABLE table_33528 ("Home team" CLOB, "Home team score" CLOB, "Away team" CLOB, "Away team score" CLOB, "Venue" CLOB, "Crowd" FLOAT, "Date" CLOB)

What was the average crowd size for the game where the away team scored 10.11 (71)?
SELECT AVG("Crowd") FROM table_33528 WHERE "Away team score" = '10.11 (71)'
SELECT AVG("Crowd") FROM "table_33528" WHERE "Away team score" = '10.11 (71)'