Year Percent of GDP 1980 15.89 1981 17.031 1982 14.006 1983 11.547 1984 11.573 1985 11.494 1986 10.336 1987 13.911 1988 13.699 1989 13.515 1990 15.315 1991 15.427 1992 20.171 1993 19.505 1994 17.557 1995 17.221 1996 15.072 1997 16.645 1998 19.928 1999 20.454 2000 19.91 2001 19.659 2002 20.554 2003 20.301 2004 20.846 2005 19.736 2006 20.824 2007 20.831 2008 16.402 2009 13.053 2010 13.938 2011 15.229 2012 14.955 2013 14.009 2014 13.706 2015 13.625 2016 12.888 2017 12.064 2018 12.529 2019 11.963 2020 11.898 2021 12.049 2022 12.082 2023 12.08 2024 12.077