What is the average duration in 2007/08 with more than 3.8 in 2002/03, more than 8.9 in 2003/04, and less than 34.4 in 2001/02?
CREATE TABLE "duration" (
  "term_abroad" text,
  "2000_01" real,
  "2001_02" real,
  "2002_03" real,
  "2003_04" real,
  "2004_05" real,
  "2005_06" real,
  "2006_07" real,
  "2007_08" real,
  "2008_09" real
);
SELECT AVG("2007_08") FROM "duration" WHERE "2002_03">3.8 AND "2003_04">8.9 AND "2001_02"<34.4;