Year Percent of GDP 1980 6.707 1981 5.446 1982 4.158 1983 4.587 1984 7.179 1985 10.593 1986 10.507 1987 14.702 1988 15.709 1989 17.019 1990 31.588 1991 27.698 1992 26.307 1993 26.729 1994 26.936 1995 25.324 1996 23.548 1997 27.028 1998 26.22 1999 7.965 2000 36.889 2001 37.466 2002 30.757 2003 34.646 2004 44.207 2005 45.626 2006 41.366 2007 39.548 2008 42.958 2009 40.757 2010 51.159 2011 24.714 2012 33.17 2013 26.457 2014 29.349 2015 29.814 2016 27.595 2017 22.003 2018 21.767 2019 25.137 2020 26.31 2021 27.858 2022 28.43 2023 28.435 2024 28.065