What was the value in 2008 when 2012 was 1R, 2010 was A, and 2005 was A?
CREATE TABLE "singles_performance_timeline" (
  "tournament" text,
  "2001" text,
  "2002" text,
  "2003" text,
  "2005" text,
  "2006" text,
  "2007" text,
  "2008" text,
  "2009" text,
  "2010" text,
  "2011" text,
  "2012" text
);
SELECT "2008" FROM "singles_performance_timeline" WHERE "2012"='1r' AND "2010"='a' AND "2005"='a';