What was the average crowd size for a home team score of 11.11 (77)?
CREATE TABLE "1st_round" (
  "home_team" text,
  "home_team_score" text,
  "away_team" text,
  "away_team_score" text,
  "ground" text,
  "crowd" real,
  "date" text
);
SELECT AVG("crowd") FROM "1st_round" WHERE "home_team_score"='11.11 (77)';