Which 2011–12 has a 2010–11 smaller than 26.016, and a Rank 2013 larger than 20, and a Club of rubin kazan?
CREATE TABLE "uefa_team_ranking" (
  "rank_2014" real,
  "rank_2013" real,
  "mvmt" text,
  "club" text,
  "country" text,
  "2009_10" real,
  "2010_11" real,
  "2011_12" real,
  "2012_13" real,
  "2013_14" real,
  "coeff" real
);
SELECT AVG("2011_12") FROM "uefa_team_ranking" WHERE "2010_11"<26.016 AND "rank_2013">20 AND "club"='rubin kazan';