Year Percent of GDP 1995-01-01 36.3173257020565 1996-01-01 34.2549532539958 1997-01-01 35.2480791440563 1998-01-01 38.8996816411936 1999-01-01 36.5757230993023 2000-01-01 39.4983386394816 2001-01-01 45.9446993888163 2002-01-01 43.0613740848616 2003-01-01 44.8255196275086 2004-01-01 46.3643105610669 2005-01-01 51.0045956281012 2006-01-01 54.4872974098882 2007-01-01 45.0596625268530 2008-01-01 45.6593085187128 2009-01-01 41.2071102463075 2010-01-01 35.0322872374352 2011-01-01 34.6397606054394 2012-01-01 33.1066067721230 2013-01-01 29.9327654670926 2014-01-01 28.9868892119782 2015-01-01 29.8703286166338 2016-01-01 26.8628221546971 2017-01-01 25.4598785662471