Year Percent of GDP 1980 22.018 1981 21.676 1982 18.775 1983 17.357 1984 16.495 1985 16.012 1986 17.772 1987 13.441 1988 20.601 1989 30.535 1990 30.622 1991 21.542 1992 18.862 1993 21.829 1994 22.37 1995 19.622 1996 21.422 1997 17.412 1998 21.537 1999 20.539 2000 14.549 2001 17.592 2002 26.713 2003 20.848 2004 19.966 2005 20.274 2006 23.199 2007 25.687 2008 22.793 2009 21.421 2010 23.981 2011 25.169 2012 20.442 2013 23.941 2014 22.416 2015 20.447 2016 23.26 2017 24.309 2018 22.634 2019 22.475 2020 24.326 2021 25.427 2022 26.376 2023 27.347 2024 27.846