Year Percent of GDP (Units) 1980 12.371 1981 12.055 1982 11.774 1983 13.308 1984 11.933 1985 10.728 1986 12.195 1987 13.410 1988 11.341 1989 11.821 1990 13.059 1991 12.920 1992 14.870 1993 12.687 1994 13.698 1995 12.667 1996 11.181 1997 10.824 1998 12.509 1999 10.537 2000 16.094 2001 16.332 2002 17.848 2003 18.932 2004 17.036 2005 15.251 2006 15.256 2007 13.858 2008 11.178 2009 12.628 2010 13.956 2011 14.724 2012 13.306 2013 14.017 2014 13.754 2015 14.872 2016 14.354 2017 12.716 2018 11.679 2019 11.316 2020 13.335 2021 13.725 2022 10.722 2023 13.049 2024 11.814 2025 11.811 2026 12.595 2027 12.770 2028 12.674 2029 12.415