Name the minimum for 2500-3000 ft for scotland
CREATE TABLE "breakdown_by_region_and_height" (
  "country" text,
  "total" real,
  "4000ft" real,
  "3500_4000ft" real,
  "3000_3500ft" real,
  "2500_3000ft" real,
  "2000_2500ft" real
);
SELECT MIN("2500_3000ft") FROM "breakdown_by_region_and_height" WHERE "country"='Scotland';