What is the total number of Year, when Result is "Nominated", when Category is "Outstanding Actor in a Musical", and when Award is "Drama Desk Award"?
CREATE TABLE "original_broadway_production" (
  "year" real,
  "award" text,
  "category" text,
  "nominee" text,
  "result" text
);
SELECT COUNT("year") FROM "original_broadway_production" WHERE "result"='nominated' AND "category"='outstanding actor in a musical' AND "award"='drama desk award';