Year % of GDP 1971 37.593360995850624 1972 39.60880195599022 1973 35.85657370517929 1974 30.284552845528456 1975 33.46060395695939 1976 37.82874492266032 1977 32.86699107866991 1978 31.002017484868865 1979 28.949001116763867 1980 31.61189535698407 1981 30.316991933504333 1982 28.491360016149976 1983 29.46753077144601 1984 30.36709023518349 1985 30.429518590019327 1986 32.11615052214868 1987 32.4199922318122 1988 36.15540235752848 1989 37.6823827186369 1990 37.444974926006395 1991 41.556519738539954 1992 42.44078431584948 1993 47.49898150854316 1994 56.33365328728706 1995 65.48910883214202 1996 72.45574573066756 1997 74.40937928419824 1998 76.1582925834422 1999 87.02334074265407 2000 86.27093336233955 2001 93.63903299492948 2002 98.52741374646989 2003 104.10870727166348 2004 97.97714386499689 2005 90.94970940364082 2006 84.43173118131895 2007 64.24744774765203 2008 64.07656126244572 2009 55.272295716460896 2010 61.414451050146845 2011 57.93587123654209 2012 49.713175439958555 2013 58.48964731978046 2014 66.85773414605565 2015 63.82782067023825 2016 65.32795936844796 2017 69.48449359790688 2018 68.94964494742239 2019 74.19906177409797 2020 101.63150116429185 2021 93.35838593526633 2022 80.46379245882544