Year Percent of GDP 1980 22.703 1981 22.934 1982 21.253 1983 16.582 1984 15.898 1985 18.066 1986 21.521 1987 23.142 1988 24.965 1989 22.685 1990 21.834 1991 21.855 1992 22.048 1993 21.908 1994 20.555 1995 20.609 1996 20.465 1997 20.775 1998 25.497 1999 21.491 2000 20.84 2001 20.688 2002 21.666 2003 19.922 2004 21.477 2005 22.856 2006 23.948 2007 23.252 2008 23.98 2009 21.426 2010 21.334 2011 22.449 2012 22.786 2013 23.179 2014 24.413 2015 24.777 2016 24.471 2017 25.478 2018 26.6 2019 25.286 2020 23.513 2021 22.169 2022 21.597 2023 21.183 2024 21.144