Name the year 2007 for 668 being 2008-q1
CREATE TABLE "statistics" (
  "items" text,
  "2008_q1" text,
  "2008_q2" text,
  "2008_q3" text,
  "extrapol_08" text,
  "year_2007" text
);
SELECT "year_2007" FROM "statistics" WHERE "2008_q1"='668';