Name the date of Tournament of paris indoor , france?
CREATE TABLE "wins_60" (
  "outcome" text,
  "date" real,
  "tournament" text,
  "surface" text,
  "partner" text,
  "opponents_in_the_final" text,
  "score_in_the_final" text
);
SELECT SUM("date") FROM "wins_60" WHERE "tournament"='paris indoor , france';