How many in the quantity section had Fokker as a manufacturer and retired later than 1999?
CREATE TABLE "list_of_braathens_aircraft" (
  "manufacturer" text,
  "model" text,
  "quantity" real,
  "introduced" real,
  "retired" real
);
SELECT COUNT("quantity") FROM "list_of_braathens_aircraft" WHERE "manufacturer"='fokker' AND "retired">1999;