When the country is vest, what were the exports?
CREATE TABLE "development_regions" (
  "county" text,
  "exports_us_mil" text,
  "percent_of_total_exports" text,
  "imports_us_mil" text,
  "percent_of_total_imports" text
);
SELECT "exports_us_mil" FROM "development_regions" WHERE "county"='Vest';