Year Percent of GDP (Units) 1980 15.473 1981 1.805 1982 10.375 1983 5.075 1984 16.778 1985 14.145 1986 5.443 1987 2.306 1988 6.006 1989 6.823 1990 8.512 1991 10.796 1992 9.455 1993 9.256 1994 10.716 1995 10.238 1996 11.726 1997 12.646 1998 12.822 1999 10.659 2000 11.018 2001 11.253 2002 12.319 2003 14.590 2004 17.045 2005 19.877 2006 26.560 2007 28.593 2008 28.952 2009 22.878 2010 24.969 2011 25.579 2012 25.724 2013 23.906 2014 20.801 2015 14.216 2016 15.407 2017 16.052 2018 16.123 2019 14.189 2020 12.470 2021 13.890 2022 12.493 2023 8.604 2024 10.470 2025 10.273 2026 10.475 2027 10.778 2028 10.894 2029 11.124