Year % of GDP 1970 76.80653795995127 1971 76.8086504461305 1972 76.80949749398887 1973 76.80180344206636 1974 76.78569339834715 1975 76.82704405591942 1976 76.81921840911296 1977 76.81372741130083 1978 76.76333052655416 1979 76.70514707382088 1980 77.0337920495621 1981 76.78009369955686 1982 76.78627504091874 1983 76.51134796853435 1984 76.4142284347136 1985 78.6770155734963 1986 75.51160049000053 1987 76.81718105419752 1988 75.13671282397834 1989 75.92863188117641 1990 71.11449322371969 1991 50.99611653996916 1992 35.146867338388745 1993 28.91583017901785 1994 27.775896647282032 1995 29.308417622848637 1996 32.62533361472184 1997 32.75419893206977 1998 32.50463298358548 1999 31.868932246258712 2000 31.075987881722472 2001 29.361096381587252 2002 24.729313347523853 2003 26.58713357770771 2004 31.311415333874304 2005 39.36137443319739 2006 37.18801428820616 2007 37.96760966420323 2008 44.91722074850797 2009 32.91398195876289 2010 40.29194130083323 2011 46.960429047688066 2012 45.86620363407665 2013 44.32389692539016 2014 39.2741528539069 2015 31.61381247934188 2016 27.269222697536772 2017 26.22284938803653 2018 27.083448499675278 2019 22.82079444945063 2020 15.683016027677226 2021 80.02378498578275 2022 88.80303699326679