Name the most 2012/13 for university of cambridge
CREATE TABLE "qs_world_university_rankings_top_50" (
  "2013_14" real,
  "2012_13" real,
  "2011_12" real,
  "2010_11" real,
  "institute" text,
  "region" text
);
SELECT MAX("2012_13") FROM "qs_world_university_rankings_top_50" WHERE "institute"='University of Cambridge';