Year Percent of GDP 1980 25.554 1981 28.009 1982 23.826 1983 21.74 1984 21.852 1985 25.069 1986 24.417 1987 26.28 1988 23.663 1989 25.717 1990 26.374 1991 18.654 1992 20.662 1993 21.267 1994 20.995 1995 19.743 1996 17.912 1997 20.265 1998 22.806 1999 21.091 2000 20.736 2001 20.142 2002 19.928 2003 19.005 2004 18.991 2005 19.053 2006 21.219 2007 23.465 2008 24.863 2009 18.43 2010 19.715 2011 19.889 2012 20.48 2013 18.977 2014 18.807 2015 18.433 2016 18.377 2017 18.832 2018 17.501 2019 17.562 2020 17.881 2021 18.249 2022 18.377 2023 18.571 2024 18.624