Year Percent of GDP (Units) 1980 11.597 1981 10.605 1982 8.808 1983 8.571 1984 7.486 1985 6.198 1986 7.035 1987 5.350 1988 5.477 1989 6.633 1990 6.649 1991 5.936 1992 7.200 1993 3.426 1994 5.712 1995 3.918 1996 6.275 1997 3.484 1998 3.920 1999 2.663 2000 4.863 2001 10.335 2002 10.590 2003 11.225 2004 10.325 2005 11.301 2006 10.135 2007 9.493 2008 9.557 2009 9.993 2010 31.089 2011 41.930 2012 27.858 2013 13.761 2014 13.689 2015 15.407 2016 19.143 2017 18.594 2018 14.828 2019 12.532 2020 12.101 2021 11.167 2022 11.649 2023 11.509 2024 10.709 2025 12.347 2026 13.641 2027 13.990 2028 14.356 2029 14.575