Which the 2007/ 08 has a 2006/ 07 of 1r?
CREATE TABLE "performance_and_rankings_timeline" (
  "2005_06" text,
  "2006_07" text,
  "2007_08" text,
  "2009_10" text,
  "2010_11" text,
  "2011_12" text,
  "2012_13" text
);
SELECT "2007_08" FROM "performance_and_rankings_timeline" WHERE "2006_07"='1r';