Year Percent of GDP 1980 30.154 1981 30.569 1982 32.95 1983 28.918 1984 32.082 1985 31.667 1986 29.429 1987 32.945 1988 37.377 1989 40.539 1990 46.748 1991 57.6 1992 58.421 1993 60.101 1994 55.605 1995 58.804 1996 59.608 1997 50.143 1998 45.018 1999 40.783 2000 36.485 2001 31.075 2002 25.841 2003 24.557 2004 22.408 2005 19.893 2006 20.865 2007 23.364 2008 26.248 2009 27.898 2010 26.806 2011 25.156 2012 31.398 2013 30.156 2014 30.703 2015 28.654 2016 27.939 2017 23.409 2018 24.107 2019 31.664 2020 21.71 2021 25.752 2022 28.675 2023 24.113 2024 20.354