Which Size has a County of 62 perry?
CREATE TABLE "indiana_high_school_athletics_conference" (
  "school" text,
  "location" text,
  "mascot" text,
  "size" real,
  "ihsaa_class" text,
  "county" text
);
SELECT MAX("size") FROM "indiana_high_school_athletics_conference" WHERE "county"='62 perry';