Year Percent of GDP 1980 35.521 1981 35.33 1982 32.053 1983 27.499 1984 24.662 1985 25.144 1986 21.343 1987 26.678 1988 19.804 1989 22.09 1990 32.417 1991 32.378 1992 33.868 1993 31.355 1994 30.659 1995 24.469 1996 20.364 1997 17.848 1998 19.874 1999 14.633 2000 13.787 2001 13.211 2002 13.19 2003 15.969 2004 18.945 2005 21.472 2006 26.04 2007 32.849 2008 32.076 2009 25.125 2010 27.296 2011 33.24 2012 34.845 2013 37.471 2014 37.653 2015 32.757 2016 32.174 2017 34.017 2018 34.59 2019 35.072 2020 34.602 2021 34.227 2022 33.94 2023 33.537 2024 33.051