Year % of GDP 1980 21.543161582979113 1981 23.566944557004803 1982 21.437670838202617 1983 17.991923895128302 1984 19.33922596615959 1985 16.542331329221486 1986 16.599795618200154 1987 20.43391439484075 1988 24.40693246865689 1989 26.037174729511946 1990 22.149281900668345 1991 24.335212433602706 1992 23.12213885641882 1993 25.114891284920155 1994 18.40275628998306 1995 19.56107239252129 1996 18.22404724371055 1997 17.776342789935313 1998 16.58084503333664 1999 21.44649563419825 2000 24.93555522400375 2001 22.26413820365623 2002 20.159898499124367 2003 17.05625565365083 2004 15.880267812591079 2005 16.655279136987872 2006 16.86411959430294 2007 17.699517977009986 2008 22.173092052430647 2009 16.649205688337645 2010 13.689300637554828 2011 13.974793509792077 2012 13.049769599526307 2013 14.594160381392946 2014 16.566963449065174 2015 16.318224335881197 2016 18.000341398413195 2017 15.406115280784993 2018 16.569523416975624 2019 16.77280300729677 2020 17.220872709610802 2021 20.045246497693313 2022 20.796292993846286 2023 20.53938747523998