Year Percent of GDP 2009-01-01 2.4360 2010-01-01 4.0351 2011-01-01 10.0481 2012-01-01 18.0662 2013-01-01 19.9855 2014-01-01 16.8129 2015-01-01 21.7804 2016-01-01 23.0772 2017-01-01 25.1415 2018-01-01 26.9594 2019-01-01 29.4083