Year Percent of GDP 1980 18.347 1981 18.969 1982 15.634 1983 13.549 1984 14.434 1985 18.385 1986 17.358 1987 22.285 1988 24.544 1989 25.53 1990 19.77 1991 19.845 1992 20.951 1993 21.159 1994 21.834 1995 16.715 1996 14.452 1997 14.302 1998 14.287 1999 13.125 2000 15.219 2001 14.697 2002 15.99 2003 17.503 2004 19.625 2005 18.721 2006 19.002 2007 19.82 2008 19.851 2009 17.2 2010 18.278 2011 18.977 2012 18.103 2013 18.548 2014 16.437 2015 14.426 2016 13.635 2017 14.659 2018 14.628 2019 14.222 2020 14.857 2021 15.453 2022 15.988 2023 16.455 2024 16.961