Year Percent of GDP 1980 41.587 1981 45.152 1982 31.795 1983 27.372 1984 31.033 1985 16.936 1986 25.395 1987 8.142 1988 33.511 1989 38.447 1990 39.082 1991 31.841 1992 31.826 1993 29.941 1994 25.982 1995 27.129 1996 23.443 1997 24.052 1998 37.937 1999 25.626 2000 29.551 2001 29.888 2002 30.193 2003 30.144 2004 31.48 2005 27.15 2006 25.905 2007 30.793 2008 36.187 2009 38.93 2010 41.412 2011 38.575 2012 38.84 2013 29.409 2014 28.199 2015 32.603 2016 28.57 2017 28.246 2018 26.751 2019 27.945 2020 28.655 2021 29.086 2022 29.785 2023 29.451 2024 30.083