Year Percent of GDP (Units) 1992 39.923 1993 62.026 1994 66.055 1995 36.927 1996 35.268 1997 43.562 1998 10.787 1999 16.922 2000 -5.623 2001 -4.023 2002 18.406 2003 21.755 2004 11.312 2005 25.992 2006 12.599 2007 7.982 2008 10.517 2009 1.205 2010 6.753 2011 25.642 2012 22.667 2013 13.133 2014 25.073 2015 32.676 2016 20.359 2017 33.413 2018 18.442 2019 17.993