Year Percent of GDP 1980 39.033 1981 46.563 1982 37.329 1983 18.791 1984 15.011 1985 9.818 1986 14.613 1987 13.222 1988 16.76 1989 11.91 1990 15.518 1991 16.017 1992 15.51 1993 16.233 1994 17.769 1995 22.173 1996 17.396 1997 19.889 1998 18.946 1999 26.907 2000 23.568 2001 26.066 2002 21.793 2003 22.174 2004 22.134 2005 17.811 2006 18.965 2007 24.085 2008 20.376 2009 21.903 2010 23.132 2011 24.135 2012 22.555 2013 27.814 2014 28.574 2015 25.582 2016 20.997 2017 25.522 2018 25.45 2019 26.229 2020 27.118 2021 27.173 2022 28.18 2023 28.481 2024 26.715