Which 1990–95 is the average one that has a 2001–05 larger than 0.55?
CREATE TABLE "index_trends_in_major_states_by_respecti" (
  "state" text,
  "1990_95" real,
  "1996_00" real,
  "2001_05" real,
  "2006_10" real
);
SELECT AVG("1990_95") FROM "index_trends_in_major_states_by_respecti" WHERE "2001_05">0.55;