What is the total number of White (%), when Brown (%) is less than 54,6, when Asian or Amerindian (%) is greater than 1,3, and when Black (%) is less than 5,3?
CREATE TABLE "ethnicities_by_region" (
  "state" text,
  "white_pct" real,
  "brown_pct" real,
  "black_pct" real,
  "asian_or_amerindian_pct" real
);
SELECT COUNT("white_pct") FROM "ethnicities_by_region" WHERE "brown_pct"<'54,6' AND "asian_or_amerindian_pct">'1,3' AND "black_pct"<'5,3';