Year Percent of GDP (Units) 1980 7.122 1981 -0.324 1982 8.856 1983 6.952 1984 11.112 1985 -7.171 1986 29.141 1987 36.136 1988 15.222 1989 20.325 1990 12.435 1991 18.129 1992 28.160 1993 28.040 1994 22.420 1995 -18.078 1996 -6.782 1997 -3.940 1998 -1.218 1999 2.832 2000 -7.270 2001 -6.298 2002 -4.232 2003 16.613 2004 21.732 2005 3.167 2006 3.806 2007 2.434 2008 -1.636 2009 -4.309 2010 -5.709 2011 8.974 2012 15.664 2013 12.596 2014 9.309 2015 12.796 2016 12.713 2017 15.184 2018 15.908 2019 13.170 2020 15.977 2021 11.675 2022 9.144 2023 17.397 2024 17.636 2025 15.389 2026 15.325 2027 15.934 2028 15.253 2029 15.272