Year Percent of GDP 1980 28.315 1981 31.805 1982 29.048 1983 25.115 1984 18.857 1985 19.559 1986 20.451 1987 24.607 1988 6.682 1989 3.858 1990 12.107 1991 18.005 1992 23.739 1993 29.484 1994 29.999 1995 31.815 1996 30.947 1997 29.988 1998 32.041 1999 30.681 2000 28.856 2001 20.946 2002 18.704 2003 22.764 2004 22.372 2005 22.117 2006 23.567 2007 35.893 2008 40.575 2009 29.838 2010 36.54 2011 43.103 2012 43.911 2013 45.093 2014 46.334 2015 44.87 2016 44.566 2017 43.681 2018 44.48 2019 43.998 2020 43.518 2021 42.933 2022 42.262 2023 41.682 2024 41.221