Year Percent of GDP 2004-01-01 106.7855 2005-01-01 122.6621 2006-01-01 142.6067 2007-01-01 140.1424 2008-01-01 140.7881 2009-01-01 152.1410 2010-01-01 168.7874 2011-01-01 153.7177 2012-01-01 153.2459 2013-01-01 149.4421 2014-01-01 159.2416 2015-01-01 169.4553 2016-01-01 164.7710