CREATE TABLE "round_18" (
  "home_team" text,
  "home_team_score" text,
  "away_team" text,
  "away_team_score" text,
  "venue" text,
  "crowd" real,
  "date" text
);

Question: How many people in total have attended games where carlton played as away?
SQL: SELECT COUNT("crowd") FROM "round_18" WHERE "away_team"='carlton';

Question: When the home team scored 19.15 (129)?
SQL: SELECT MIN("crowd") FROM "round_18" WHERE "home_team_score"='19.15 (129)';