Year Percent of GDP 1980 33.912 1981 32.762 1982 31.552 1983 30.15 1984 29.959 1985 29.921 1986 29.868 1987 30.921 1988 32.981 1989 33.751 1990 34.471 1991 34.168 1992 32.511 1993 30.744 1994 29.545 1995 29.883 1996 30.865 1997 29.951 1998 28.515 1999 27.119 2000 27.307 2001 26.56 2002 24.656 2003 24.397 2004 24.349 2005 24.749 2006 24.749 2007 24.483 2008 24.548 2009 21.324 2010 21.298 2011 22.103 2012 22.654 2013 23.191 2014 23.916 2015 24.023 2016 23.407 2017 23.903 2018 24.432 2019 24.889 2020 25.047 2021 24.964 2022 25.036 2023 25.122 2024 25.203