Year Percent of GDP 1980 30.221 1981 25.273 1982 18.163 1983 17.732 1984 21.7 1985 21.086 1986 16.904 1987 20.241 1988 24.129 1989 23.158 1990 27.333 1991 28.571 1992 30.748 1993 39.719 1994 43.368 1995 31.557 1996 31.129 1997 32.168 1998 30.927 1999 34.674 2000 28.288 2001 26.001 2002 24.258 2003 25.281 2004 29.666 2005 27.623 2006 28.342 2007 33.665 2008 36.066 2009 20.599 2010 21.88 2011 26 2012 24.564 2013 21.76 2014 22.184 2015 25.118 2016 23.377 2017 24.161 2018 25.525 2019 23.073 2020 22.645 2021 22.462 2022 21.7 2023 21.107 2024 20.509