CREATE TABLE "round_16" (
  "home_team" text,
  "home_team_score" text,
  "away_team" text,
  "away_team_score" text,
  "venue" text,
  "crowd" real,
  "date" text
);

Question: How big was the crowd of the Home team of Collingwood?
SQL: SELECT MAX("crowd") FROM "round_16" WHERE "home_team"='collingwood';