Year Percent of GDP 1980 13.724 1981 20.324 1982 16.6 1983 16.634 1984 16.171 1985 14.376 1986 9.82 1987 12.227 1988 9.346 1989 8.094 1990 7.98 1991 9.237 1992 13.715 1993 13.211 1994 15.135 1995 17.448 1996 16.741 1997 18.566 1998 19.973 1999 17.993 2000 20.782 2001 18.57 2002 17.201 2003 17.708 2004 16.939 2005 19.212 2006 18.96 2007 22.485 2008 24.953 2009 19.314 2010 19.087 2011 20.194 2012 24.965 2013 24.742 2014 25.931 2015 26.092 2016 25.312 2017 27.546 2018 26.257 2019 27.701 2020 28.7 2021 30.734 2022 29.519 2023 33.235 2024 33.155