Year Percent of GDP (Units) 1980 9.111 1981 11.885 1982 8.638 1983 6.416 1984 11.631 1985 11.718 1986 11.788 1987 9.912 1988 9.821 1989 16.302 1990 10.757 1991 10.455 1992 12.456 1993 11.554 1994 14.929 1995 11.323 1996 9.436 1997 10.103 1998 11.321 1999 7.340 2000 3.805 2001 4.417 2002 5.171 2003 7.693 2004 5.760 2005 7.239 2006 7.817 2007 10.898 2008 10.500 2009 15.953 2010 20.194 2011 20.796 2012 23.361 2013 13.702 2014 12.098 2015 11.863 2016 14.745 2017 19.003 2018 21.695 2019 22.298 2020 27.194 2021 25.251 2022 10.434 2023 11.846 2024 18.184 2025 21.215 2026 18.579 2027 18.472 2028 19.187 2029 19.844