When 2008 t is the original number what is the lowest year?
CREATE TABLE "names_and_fleet_details" (
  "original_number" text,
  "uic_number" text,
  "name" text,
  "constructer" text,
  "constructor_number" real,
  "year" real,
  "withdrawn" text,
  "kilometers_worked" real
);
SELECT MIN("year") FROM "names_and_fleet_details" WHERE "original_number"='2008 T';