What is the others# when bush% is 57.0%?
CREATE TABLE "by_county" (
  "county" text,
  "kerrypct" text,
  "kerrynum" real,
  "bushpct" text,
  "bushnum" real,
  "otherspct" text,
  "othersnum" real
);
SELECT MAX("othersnum") FROM "by_county" WHERE "bushpct"='57.0%';