Year Percent of GDP 1995-01-01 2.277 1996-01-01 2.426 1997-01-01 2.447 1998-01-01 1.158 1999-01-01 1.217 2000-01-01 4.154 2001-01-01 2.577 2002-01-01 3.446 2003-01-01 1.615 2004-01-01 0.093 2005-01-01 0.857 2006-01-01 1.075 2007-01-01 2.167 2008-01-01 1.523 2009-01-01 0.018 2010-01-01 1.533 2011-01-01 1.691 2012-01-01 1.558 2013-01-01 0.650 2014-01-01 0.418 2015-01-01 0.553 2016-01-01 1.745 2017-01-01 2.307