What is the total crowd size when the away team scores 14.6 (90)?
CREATE TABLE "round_2" (
  "home_team" text,
  "home_team_score" text,
  "away_team" text,
  "away_team_score" text,
  "venue" text,
  "crowd" real,
  "date" text
);
SELECT SUM("crowd") FROM "round_2" WHERE "away_team_score"='14.6 (90)';