What is the enrollment for the institution that was founded in 1866 and is a private/(african methodist) type?
CREATE TABLE "current_members" (
  "institution" text,
  "location" text,
  "mens_nickname" text,
  "womens_nickname" text,
  "founded" real,
  "type" text,
  "enrollment" real,
  "joined" text
);
SELECT MAX("enrollment") FROM "current_members" WHERE "founded"=1866 AND "type"='Private/(African Methodist)';