Name the average In/de-creased by which has a Governorate of al anbar governorate, and Seats 2005 smaller than 9?
CREATE TABLE "seat_allocation" (
  "governorate" text,
  "seats_2010" real,
  "seats_2005" real,
  "in_de_creased_by" real,
  "percentage_in_de_crease" text
);
SELECT AVG("in_de_creased_by") FROM "seat_allocation" WHERE "governorate"='al anbar governorate' AND "seats_2005"<9;