Which Debut year has Goals of 0, and Years at club of 1963, and Games larger than 5?
CREATE TABLE "1960s" (
  "debut_year" real,
  "player" text,
  "games" real,
  "goals" real,
  "years_at_club" text
);
SELECT AVG("debut_year") FROM "1960s" WHERE "goals"=0 AND "years_at_club"='1963' AND "games">5;