How many point categories are there for the 3 mile run? 
CREATE TABLE "2013_national_color_guard_competition_re" (
  "region" text,
  "wing" text,
  "inspection" real,
  "standard" real,
  "indoor" real,
  "outdoor" real,
  "written" real,
  "panel_quiz" real,
  "mile_run" real,
  "points" real,
  "overall" text
);
SELECT COUNT("points") FROM "2013_national_color_guard_competition_re" WHERE "mile_run"=3;