Year % of GDP 1960 77.03206203914303 1961 80.49710828753234 1962 79.5255078220697 1963 77.47052221707055 1964 76.12272662921846 1965 76.11260053619303 1966 77.6037366034625 1967 76.56331084587443 1968 76.17638236182422 1969 74.31138048595703 1970 73.43439388641926 1971 72.51488568701423 1972 72.9856500321268 1973 72.73911686690592 1974 68.14341085271319 1975 69.39386449149983 1976 67.94550949098121 1977 67.16062780088825 1978 67.46872393661386 1979 67.03624905307609 1980 60.49194142578642 1981 62.14961935763835 1982 60.76388830237022 1983 64.28137478831653 1984 62.12992720042191 1985 60.41767966880326 1986 61.28964623904015 1987 61.14350664773836 1988 58.15095384463864 1989 57.628845964478145 1990 58.750202481565964 1991 62.24577931554951 1992 61.74380466876207 1993 61.13250696867233 1994 62.41616347767677 1995 62.93975489091604 1996 63.15490842272765 1997 61.361608884156105 1998 54.19351852113344 1999 54.64585118351616 2000 55.667192292576914 2001 51.76288999696978 2002 51.89930230269406 2003 51.01634326133219 2004 50.99319591249023 2005 51.837211323051335 2006 51.778115523210325 2007 52.67453361545942 2008 52.99491494026477 2009 53.83713127284141 2010 54.30392435008968 2011 54.83737918204348 2012 55.51155393586669 2013 55.31650676270792 2014 61.74821809089583 2015 58.963342636573515 2016 59.33375310372685 2017 59.320390462139706 2018 59.462683969790085 2019 59.03813084956398 2020 59.07363010281333 2021 59.731926914547195 2022 61.974742850097506 2023 61.59232619845907