Which Year has a Group of césar awards, and a Result of nominated, and an Award of the best actress, and a Film of 8 women (8 femmes)?
CREATE TABLE "c_sar_awards" (
  "year" real,
  "group" text,
  "award" text,
  "film" text,
  "result" text
);
SELECT AVG("year") FROM "c_sar_awards" WHERE "group"='césar awards' AND "result"='nominated' AND "award"='best actress' AND "film"='8 women (8 femmes)';