How many games tied for the air force with over 57 years participating?
CREATE TABLE "ncaa_division_i_fbs_football_win_loss_re" (
  "mountain_west" text,
  "lost" real,
  "tied" real,
  "pct" real,
  "years" real,
  "total_games" real
);
SELECT COUNT("tied") FROM "ncaa_division_i_fbs_football_win_loss_re" WHERE "mountain_west"='air force' AND "years">57;