How many Years have an Iron Man Award of kyal horsley?
CREATE TABLE "honour_board" (
  "year" real,
  "coach" text,
  "captain" text,
  "club_champion" text,
  "leading_goalkicker" text,
  "player_s_player" text,
  "iron_man_award" text,
  "community_award" text,
  "most_professional" text,
  "most_improved" text,
  "neafl_player_of_the_year" text
);
SELECT COUNT("year") FROM "honour_board" WHERE "iron_man_award"='kyal horsley';