Year % of GDP 1967 21.434073402809243 1968 22.42179407499482 1969 24.465626805314848 1970 25.589305201891598 1971 26.598006644518275 1972 29.03349895816637 1973 32.800117837678606 1974 29.114310113456142 1975 30.524167561761544 1976 38.52917903066271 1977 36.09820732657833 1978 36.573079537729434 1979 38.415974440894566 1980 40.77358490566038 1981 43.645669291338585 1982 47.1448087431694 1983 54.18788907753254 1984 66.7806712962963 1985 87.4971363115693 1986 107.49046015712682 1987 125.28163265306122 1988 130.7588285960379 1989 132.43420567637304 1990 96.41941297631308 1991 103.37670162910064 1992 91.18783984181908 1993 63.00795719577445 1994 34.59207996450404 1995 25.864539408472176 1996 31.71211779078587 1997 35.191124999662684 1998 40.50602194693253 1999 32.550469973104526 2000 35.80907983895143 2001 31.565819584822147 2002 48.42070984286666 2003 45.007671969437894 2004 48.678142987976116 2005 44.80816170095938 2006 38.730706184707195 2007 44.58901584453393 2008 44.79687862507785 2009 46.918522959578866 2010 46.06206979404652 2011 46.426100193974264 2012 49.457369629076915 2013 53.16170970899828 2014 55.04485419552353 2015 60.74014048326353 2016 78.36464278673535 2017 65.44551916251415 2018 64.36877362846886 2019 63.9377591426993 2020 84.916232318718 2021 77.944764756827 2022 77.66126840832433 2023 59.75064439948253