How many were Wounded while in a Unit with a Complement of 83 off 9 Men?
CREATE TABLE "head_quarters_and_support_regiments" (
  "unit" text,
  "complement" text,
  "killed" text,
  "wounded" text,
  "missing" text
);
SELECT "wounded" FROM "head_quarters_and_support_regiments" WHERE "complement"='83 off 9 men';