Year Percent of GDP 1980 20.418 1981 15.471 1982 18.213 1983 16.521 1984 17.906 1985 17.868 1986 16.522 1987 18.751 1988 19.985 1989 21.027 1990 23.013 1991 22.201 1992 21.33 1993 19.23 1994 19.395 1995 20.14 1996 20.907 1997 22.05 1998 22.415 1999 23.837 2000 22.846 2001 22.654 2002 22.133 2003 23.07 2004 26.21 2005 26.527 2006 35.182 2007 31.805 2008 33.986 2009 29.965 2010 21.087 2011 20.715 2012 29.913 2013 28.753 2014 30.431 2015 27.546 2016 25.119 2017 28.096 2018 25.055 2019 25.291 2020 26.339 2021 26.34 2022 25.835 2023 25.807 2024 25.802