Year Percent of GDP 2006-01-01 0.7327 2007-01-01 1.2074 2008-01-01 1.5395 2009-01-01 1.5319 2010-01-01 1.7562 2011-01-01 2.0937 2012-01-01 2.5856 2013-01-01 3.3948