Year Percent of GDP 2004-01-01 27.5343322775554 2005-01-01 30.7543262223400 2006-01-01 39.7644552287388 2007-01-01 48.0161684927135 2008-01-01 38.7167178232489 2009-01-01 45.7460525054856 2010-01-01 42.0056440028765 2011-01-01 42.7244242939519 2012-01-01 45.5672693576551 2013-01-01 44.7242078942044 2014-01-01 37.2046323413651