Year Percent of GDP 1980 13.405 1981 10.94 1982 11.839 1983 12.837 1984 12.66 1985 12.978 1986 13.368 1987 9.937 1988 9.737 1989 13.388 1990 14.746 1991 12.079 1992 13.142 1993 12.401 1994 12.006 1995 10.954 1996 9.736 1997 24.561 1998 22.135 1999 30.097 2000 28.881 2001 23.275 2002 23.966 2003 23.937 2004 24.688 2005 24.439 2006 22.899 2007 21.703 2008 20.792 2009 19.756 2010 19.574 2011 18.143 2012 17.31 2013 15.687 2014 17.509 2015 13.951 2016 14.97 2017 10.843 2018 11.161 2019 12.985 2020 14.681 2021 15.456 2022 16.683 2023 16.994 2024 17.804