Year Percent of GDP 1980 25.748 1981 23.519 1982 23.798 1983 21.75 1984 21.229 1985 21.168 1986 21.757 1987 22.263 1988 23.343 1989 24.268 1990 24.41 1991 23.602 1992 21.96 1993 19.543 1994 20.317 1995 20.513 1996 19.622 1997 19.452 1998 20.681 1999 21.364 2000 22.488 2001 22.165 2002 21.316 2003 21.186 2004 21.89 2005 22.453 2006 23.238 2007 24.165 2008 24.13 2009 21.333 2010 21.946 2011 23.221 2012 22.627 2013 22.287 2014 22.71 2015 22.712 2016 22.686 2017 23.459 2018 22.771 2019 22.572 2020 22.561 2021 22.592 2022 22.774 2023 23.018 2024 23.271