Year % of GDP 1980 23.53660059351773 1981 22.28995962398222 1982 24.737643702274063 1983 21.55859246263904 1984 20.075351594758022 1985 19.11445140258861 1986 16.031124747520803 1987 16.12964207812274 1988 19.918476601610372 1989 21.472733002232488 1990 24.031899573772694 1991 28.585701338604807 1992 96.28588074790862 1993 64.53950295702644 1994 41.11889038791823 1995 34.96976537591953 1996 33.27511148196998 1997 35.228428969830134 1998 36.67036856109425 1999 34.16926739315681 2000 43.338787587365495 2001 45.157613200129916 2002 47.579452050306806 2003 46.173174589590666 2004 44.82962654679146 2005 47.85935562815001 2006 49.05748251187359 2007 54.954214688750604 2008 52.14933338021757 2009 49.85416579249189 2010 48.563955003246896 2011 51.977031793969665 2012 47.572712860263 2013 46.95739870953214 2014 47.19484413802 2015 44.53361518838017 2016 45.831963647698885 2017 46.624451222026416 2018 45.2362297135284 2019 44.974924762103576 2020 37.17193981776688 2021 44.708821348419306 2022 47.75425831451421 2023 44.91489467624427