Year Percent of GDP 1980 27.01 1981 34.861 1982 29.594 1983 29.409 1984 26.942 1985 19.057 1986 23.55 1987 15.855 1988 19.597 1989 23.239 1990 23.033 1991 20.539 1992 17.452 1993 20.826 1994 20.877 1995 7.942 1996 12.536 1997 8.787 1998 7.524 1999 6.917 2000 9.755 2001 46.418 2002 51.788 2003 43.091 2004 30.072 2005 28.028 2006 21.889 2007 28.667 2008 41.913 2009 50.051 2010 41.592 2011 13.48 2012 16.334 2013 29.929 2014 53.459 2015 77.163 2016 68.889 2017 43.268 2018 33.395 2019 37.254 2020 35.164 2021 33.124 2022 30.241 2023 27.596 2024 24.772