CREATE TABLE table_63513 ("Tournament" TEXT, "2003" TEXT, "2004" TEXT, "2005" TEXT, "2006" TEXT, "2007" TEXT, "2008" TEXT, "2009" TEXT, "2010" TEXT, "2011" TEXT, "2012" TEXT, "Win %" TEXT)

What is the win % of the 2003 atp world tour finals?
SELECT "Win %" FROM table_63513 WHERE "2003" = 'atp world tour finals'
SELECT "Win %" FROM "table_63513" WHERE "2003" = 'atp world tour finals'