CREATE TABLE "complete_formula_one_world_championship_" (
  "year" real,
  "entrant" text,
  "chassis" text,
  "engine" text,
  "pts" real
);

Question: What year did Ecurie Bleue score more than 0 points?
SQL: SELECT AVG("year") FROM "complete_formula_one_world_championship_" WHERE "pts">0 AND "entrant"='ecurie bleue';