What was the least amount of camp mates?
CREATE TABLE "series_details" (
  "series" text,
  "presenters" text,
  "start_date" text,
  "end_date" text,
  "days_in_camp" real,
  "camp_mates" real,
  "winner" text,
  "highest_viewers_millions" text,
  "lowest_viewers_millions" text,
  "average_viewers_millions" text
);
SELECT MIN("camp_mates") FROM "series_details";