Which 2011 has a 2004 smaller than 271,691, and a Country or territory of vietnam, and a 2009 larger than 265,414?
CREATE TABLE "top_markets_2000_2011" (
  "country_or_territory" text,
  "2000" real,
  "2001" real,
  "2002" real,
  "2003" real,
  "2004" real,
  "2005" real,
  "2006" real,
  "2007" real,
  "2008" real,
  "2009" real,
  "2010" real,
  "2011" real
);
SELECT AVG("2011") FROM "top_markets_2000_2011" WHERE "2004"<'271,691' AND "country_or_territory"='vietnam' AND "2009">'265,414';