What's the total enrollment ofr Mcgill University that has a capacity less than 25,012?
CREATE TABLE "r_seau_du_sport_tudiant_du_qu_bec_dunsmo" (
  "institution" text,
  "team" text,
  "city" text,
  "province" text,
  "first_season" real,
  "head_coach" text,
  "enrollment" real,
  "football_stadium" text,
  "capacity" real
);
SELECT COUNT("enrollment") FROM "r_seau_du_sport_tudiant_du_qu_bec_dunsmo" WHERE "institution"='mcgill university' AND "capacity"<'25,012';