Year Percent of GDP 2004-01-01 1.333871602 2005-01-01 1.419804960 2006-01-01 1.508385288 2007-01-01 1.779161041 2008-01-01 1.803860654 2009-01-01 2.093528576 2010-01-01 2.179501534 2011-01-01 2.054573612 2012-01-01 2.237829930