How many providers were founded in 1964?
CREATE TABLE "administered_by_independent_administrati" (
  "english_name" text,
  "japanese_orthography" text,
  "pronouciation" text,
  "abbreviation" text,
  "provider_iai" text,
  "foundation" real
);
SELECT COUNT("provider_iai") FROM "administered_by_independent_administrati" WHERE "foundation"=1964;