Year Percent of GDP 2007-01-01 1.2622 2008-01-01 1.4586 2009-01-01 1.3611 2010-01-01 1.7438 2011-01-01 1.9203 2012-01-01 1.8583 2013-01-01 1.6696 2014-01-01 1.8940 2015-01-01 2.0198 2016-01-01 2.1942