what is the maximum bush# with others% being 1.57%
CREATE TABLE "by_parish" (
  "parish" text,
  "bushnum" real,
  "bushpct" text,
  "kerrynum" real,
  "kerrypct" text,
  "othersnum" real,
  "otherspct" text,
  "totalnum" real
);
SELECT MAX("bushnum") FROM "by_parish" WHERE "otherspct"='1.57%';