How many GICS sectors have a free float of 0.2391?
CREATE TABLE "composition" (
  "bse_code" text,
  "company" text,
  "city" text,
  "gics_sector" text,
  "free_float" text,
  "index_weighting_pct" text
);
SELECT COUNT("gics_sector") FROM "composition" WHERE "free_float"='0.2391';