What is the total year with a Team of scuderia ferrari, an Engine of ferrari 106 2.5 l4, and more than 12 points?
CREATE TABLE "complete_formula_one_results" (
  "year" real,
  "team" text,
  "chassis" text,
  "engine" text,
  "points" real
);
SELECT SUM("year") FROM "complete_formula_one_results" WHERE "team"='scuderia ferrari' AND "engine"='ferrari 106 2.5 l4' AND "points">12;