Year Percent of GDP 1980 22.377 1981 22.809 1982 23.445 1983 21.25 1984 21.329 1985 21.396 1986 19.712 1987 19.438 1988 21.172 1989 22.85 1990 24.382 1991 20.899 1992 22.398 1993 22.824 1994 22.15 1995 21.083 1996 19.961 1997 19.556 1998 21.889 1999 20.421 2000 26.904 2001 18.673 2002 16.739 2003 17.772 2004 16.545 2005 18.343 2006 17.222 2007 16.743 2008 16.969 2009 16.307 2010 14.984 2011 16.113 2012 15.805 2013 16.136 2014 15.571 2015 15.875 2016 15.666 2017 15.732 2018 15.782 2019 15.832 2020 15.882 2021 15.932 2022 15.982 2023 16.032 2024 16.082