Year Percent of GDP (Units) 1980 7.710 1981 6.906 1982 9.403 1983 8.288 1984 11.249 1985 10.369 1986 9.362 1987 6.642 1988 6.417 1989 5.110 1990 3.141 1991 1.792 1992 5.055 1993 5.508 1994 4.695 1995 9.345 1996 7.008 1997 4.998 1998 6.972 1999 5.147 2000 9.167 2001 11.677 2002 11.337 2003 11.671 2004 16.744 2005 16.903 2006 11.697 2007 15.145 2008 16.019 2009 15.049 2010 14.011 2011 13.979 2012 13.629 2013 16.941 2014 11.885 2015 11.563 2016 10.827 2017 14.377 2018 11.264 2019 11.566 2020 13.050 2021 14.882 2022 14.676 2023 12.832 2024 16.844 2025 19.487 2026 19.156 2027 19.485 2028 20.221 2029 19.922