5 November 2010 of dragon oil 4.02% has what average Date?
CREATE TABLE "constituents" (
  "date" real,
  "2_january_2007" text,
  "19_october_2009" text,
  "5_november_2010" text,
  "16_december_2011" text,
  "30_march_2012" text
);
SELECT AVG("date") FROM "constituents" WHERE "5_november_2010"='dragon oil 4.02%';