Year Percent of GDP 2002-01-01 27.2354775128513 2003-01-01 29.2571065379985 2004-01-01 30.8097736765812 2005-01-01 31.5768795742587 2006-01-01 31.2812512101299 2007-01-01 30.1115972715532 2008-01-01 29.8903585388351 2009-01-01 33.2219761619291