What's the total Year with a Length of 4:45 an has an Album of Les Mots?
CREATE TABLE "official_versions" (
  "version" text,
  "length" text,
  "album" text,
  "remixed_by" text,
  "year" real
);
SELECT SUM("year") FROM "official_versions" WHERE "length"='4:45' AND "album"='les mots';