How many seasons was Dave Reid treasurer?
CREATE TABLE "executive_committee" (
  "season" text,
  "president" text,
  "general_sec" text,
  "treasurer" text,
  "fixtures_sec" text,
  "social_sec_bradford" text,
  "social_sec_leeds" text,
  "media_officer" text
);
SELECT COUNT("season") FROM "executive_committee" WHERE "treasurer"='Dave Reid';