How many people attended the game where the away team scored 16.7 (103) points?
CREATE TABLE "round_3" (
  "home_team" text,
  "home_team_score" text,
  "away_team" text,
  "away_team_score" text,
  "venue" text,
  "crowd" real,
  "date" text
);
SELECT COUNT("crowd") FROM "round_3" WHERE "away_team_score"='16.7 (103)';