Year Percent of GDP 1980 16.81 1981 19 1982 16.751 1983 20.519 1984 22.679 1985 16.112 1986 16.757 1987 13.17 1988 13.168 1989 12.747 1990 13.333 1991 13.35 1992 12.233 1993 13.377 1994 17.79 1995 19.695 1996 18.008 1997 17.042 1998 17.576 1999 17.977 2000 20.634 2001 18.026 2002 17.201 2003 18.299 2004 22.417 2005 17.266 2006 19.335 2007 13.596 2008 24.817 2009 25.915 2010 25.514 2011 25.216 2012 24.597 2013 24.763 2014 25.33 2015 23.888 2016 25.201 2017 25.464 2018 26.079 2019 26.407 2020 27.058 2021 27.506 2022 28.078 2023 28.715 2024 29.518