What is the most recently founded school that joined in 2011?
CREATE TABLE "current_members" (
  "institution" text,
  "location" text,
  "men_s_nickname" text,
  "women_s_nickname" text,
  "founded" real,
  "type" text,
  "enrollment" real,
  "joined" text
);
SELECT MAX("founded") FROM "current_members" WHERE "joined"='2011';