What was the earliest year that Scuderia Ferrari was an entrant with 0 points?
CREATE TABLE "complete_formula_one_world_championship_" (
  "year" real,
  "entrant" text,
  "chassis" text,
  "engine" text,
  "points" text
);
SELECT MIN("year") FROM "complete_formula_one_world_championship_" WHERE "points"='0' AND "entrant"='scuderia ferrari';