Year % of GDP 1980 37.29252789481535 1981 41.35387390470354 1982 41.303064207525615 1983 39.77890548850768 1984 41.10881890978054 1985 38.22348296016842 1986 38.94209927749554 1987 30.2188787386556 1988 30.08845953514654 1989 27.16876383255177 1990 28.25462384469299 1991 33.044503511094376 1992 31.566596808405468 1993 32.439944501438795 1994 51.75950811567513 1995 49.55822763555998 1996 47.885529397410245 1997 52.17555418252468 1998 48.288706453636756 1999 46.865903062679074 2000 45.55965390724555 2001 47.84725422850677 2002 47.101817409003665 2003 45.988801743096765 2004 46.4939592314372 2005 47.81081770153345 2006 48.87253533351259 2007 49.57656811846845 2008 49.887973712386 2009 50.38078590322075 2010 51.19435033296058 2011 51.660606239418236 2012 52.510411695134785 2013 52.48498728437154 2014 52.61985084764282 2015 53.207210713048106 2016 53.90946923623518 2017 53.12221721380249 2018 53.445150180902544 2019 52.17093221443127 2020 53.399574172366236 2021 54.13460878402423 2022 55.059521516539476 2023 52.15686497527189