Year % of GDP 1962 89.51108959690175 1963 90.24849086248224 1964 90.22389800202113 1965 85.71172976454577 1966 87.08732240809498 1967 86.87275480451669 1968 88.55482644425338 1969 88.58801877505574 1970 86.4764218309951 1971 88.00396484188381 1972 85.01532523555427 1973 80.28332948013744 1974 80.65790961558262 1975 80.54652670933959 1976 78.75264517515345 1977 78.30258106611203 1978 76.49887456517268 1979 76.93385116395733 1980 77.44152560668996 1981 77.9889344973604 1982 81.98890155215435 1983 85.40431604760688 1984 82.07757803086146 1985 79.27161331384536 1986 75.66039151162853 1987 77.29597651990883 1988 67.98937339628742 1989 60.35409827525719 1990 69.05236650102961 1991 68.34629993262517 1992 71.33647062831872 1993 74.09453054876894 1994 77.02504937046672 1995 72.49318831090447 1996 75.42482767183446 1997 76.07653404368592 1998 72.21458159719892 1999 72.99881222217849 2000 74.64363288738093 2001 73.35273728245134 2002 66.39171186623632 2003 66.21102417403701 2004 68.66060702334697 2005 68.93159501873312 2006 70.19697669379585 2007 70.9267109954109 2008 73.6525428946913 2009 75.73150379417994 2010 73.14288168280676 2011 73.3528345030532 2012 77.50970772863114 2013 73.92555697024132 2014 75.49609475556956 2015 75.56706571314976 2016 73.66667546566819 2017 74.14152242126481 2018 75.58069175771492 2019 77.36226822553057 2020 76.17750315516393 2021 74.76996062639435 2022 77.312700709095 2023 78.28513910228342