Year Percent of GDP 2004-01-01 80.6126052211940 2005-01-01 70.6535509517294 2006-01-01 70.1134215306578 2007-01-01 74.9927515590065 2008-01-01 68.4696832026871 2009-01-01 51.8670571414896 2010-01-01 48.8846209915958 2011-01-01 44.9024059371257 2012-01-01 40.7401204815309 2013-01-01 18.5812258727463 2014-01-01 19.1190423616336 2015-01-01 22.7092221176841 2016-01-01 26.3228457315112 2017-01-01 30.0850070847201 2018-01-01 26.5243088859723 2019-01-01 28.0481027036210