Year Percent of GDP (Units) 1980 16.017 1981 12.405 1982 12.403 1983 11.593 1984 8.509 1985 8.805 1986 8.538 1987 1.959 1988 -0.747 1989 -0.093 1990 -0.605 1991 -0.582 1992 -2.066 1993 -0.382 1994 5.576 1995 8.532 1996 6.945 1997 9.040 1998 8.819 1999 6.931 2000 5.566 2001 6.919 2002 8.614 2003 8.950 2004 7.521 2005 8.354 2006 7.438 2007 6.698 2008 10.078 2009 11.112 2010 11.072 2011 10.449 2012 10.775 2013 14.005 2014 15.325 2015 22.431 2016 22.432 2017 19.239 2018 17.869 2019 18.910 2020 17.754 2021 19.053 2022 17.810 2023 13.103 2024 16.678 2025 17.800 2026 18.041 2027 18.550 2028 18.728 2029 18.732