On what date were Perth Wildcats the away team?
CREATE TABLE "round_10" (
  "date" text,
  "home_team" text,
  "score" text,
  "away_team" text,
  "venue" text,
  "box_score" text,
  "report" text
);
SELECT "date" FROM "round_10" WHERE "away_team"='perth wildcats';