Year Percent of GDP 1980 26.985 1981 27.252 1982 24.078 1983 19.709 1984 13.06 1985 15.749 1986 17.444 1987 16.585 1988 15.069 1989 22.856 1990 15.786 1991 12.752 1992 11.673 1993 3.924 1994 11.815 1995 13.751 1996 12.93 1997 11.458 1998 14.922 1999 9.608 2000 23.154 2001 23.451 2002 24.387 2003 25.224 2004 26.504 2005 21.598 2006 19.433 2007 19.147 2008 19.592 2009 21.106 2010 21.584 2011 25.717 2012 23.313 2013 29.584 2014 27.916 2015 32.223 2016 26.544 2017 27.733 2018 28.173 2019 28.213 2020 29.67 2021 30.614 2022 30.788 2023 30.921 2024 31.061