Year Percent of GDP (Units) 1980 24.180 1981 23.166 1982 16.202 1983 13.284 1984 19.019 1985 17.949 1986 7.791 1987 11.094 1988 7.416 1989 10.003 1990 15.671 1991 2.755 1992 4.377 1993 5.842 1994 0.050 1995 0.170 1996 5.973 1997 11.260 1998 3.943 1999 6.448 2000 16.307 2001 9.072 2002 3.316 2003 5.783 2004 6.430 2005 13.165 2006 17.315 2007 7.631 2008 7.059 2009 3.095 2010 4.063 2011 12.060 2012 19.006 2013 18.293 2014 13.159 2015 4.740 2016 3.575 2017 7.042 2018 9.658 2019 8.929 2020 6.038 2021 11.549 2022 11.643 2023 9.276 2024 7.776 2025 6.927 2026 6.647 2027 6.566 2028 6.473 2029 6.432