Year % of GDP 1960 62.893192252227735 1961 80.57286978820093 1962 84.8537123214593 1963 81.16290938876872 1964 73.2056127967889 1965 66.66044756055364 1966 66.15285227405093 1967 71.18361021067885 1968 72.85485976148158 1969 69.21042566506983 1970 63.898573062245035 1971 63.2098445683585 1972 64.28223626782636 1973 63.452972567302815 1974 63.92855262580896 1975 61.99184483961177 1976 65.82380645787325 1977 63.240833387692305 1978 60.717558688134154 1979 62.89508764664505 1980 64.68937070477163 1981 66.41635442000182 1982 66.56635047168088 1983 67.45147741569836 1984 65.76415333451276 1985 65.07084895381092 1986 64.86818162483961 1987 62.78256344097889 1988 62.11547403864128 1989 64.28315227189628 1990 63.649122967396664 1991 61.91879154919794 1992 59.71528286961553 1993 58.348901470685256 1994 58.17905413355749 1995 59.06227799615771 1996 60.04746966696442 1997 59.648394739053145 1998 60.451334731294914 1999 62.57130759067342 2000 63.57078827759294 2001 61.93324901329967 2002 60.983443247076806 2003 58.021994313778016 2004 55.236247906580935 2005 54.38454089805674 2006 52.57249547519307 2007 50.99628774485628 2008 49.7734945413157 2009 50.08027203593765 2010 48.913361667037286 2011 50.15929328194774 2012 51.14261330056248 2013 51.71714700880261 2014 52.52494301075785 2015 53.99089042841969 2016 55.03873751187472 2017 54.86760843327666 2018 55.05768886191412 2019 56.01857304226577 2020 55.330445775126634 2021 53.9217036539298 2022 53.44193358810815