Year Percent of GDP (Units) 1992 32.657 1993 67.221 1994 50.354 1995 81.196 1996 68.645 1997 60.148 1998 87.992 1999 106.062 2000 84.749 2001 59.532 2002 60.070 2003 58.145 2004 57.053 2005 76.570 2006 50.473 2007 51.198 2008 69.392 2009 44.936 2010 42.444 2011 32.251 2012 33.322 2013 32.729 2014 21.598 2015 31.081 2016 30.936 2017 42.491 2018 26.357 2019 31.256