CREATE TABLE table_40792 ("Tournament" TEXT, "2000" TEXT, "2001" TEXT, "2002" TEXT, "2003" TEXT, "2004" TEXT, "2005" TEXT, "2006" TEXT, "2007" TEXT, "2008" TEXT, "2009" TEXT, "2010" TEXT, "2011" TEXT, "2012" TEXT)

What is 2008, when 2006 is 'Grand Slam Tournaments'?
SELECT "2008" FROM table_40792 WHERE "2006" = 'grand slam tournaments'
SELECT "2008" FROM "table_40792" WHERE "2006" = 'grand slam tournaments'