Year % of GDP 1970 100.7318627792074 1971 109.36203346371083 1972 105.43592754977935 1973 103.6673346256274 1974 95.19434195298228 1975 88.26901011908429 1976 92.16648830887677 1977 91.1386617800493 1978 88.25270572014603 1979 91.90545016746437 1980 90.72486992507633 1981 83.17492916175023 1982 82.77274789642038 1983 74.41729801065836 1984 84.6459569039188 1985 74.07411673661511 1986 58.341325821461034 1987 57.76262178536955 1988 57.58350943779028 1989 61.85348915989161 1990 72.49567170229308 1991 71.62037037037037 1992 76.58752377501574 1993 71.76598600424617 1994 69.70010595834725 1995 85.46418318093558 1996 81.33042459153398 1997 78.08598442334879 1998 82.2875929186599 1999 78.38212409390171 2000 83.59285957367818 2001 83.41096491228072 2002 77.61931785937234 2003 77.67129332383877 2004 77.7996744926934 2005 80.44599638474683 2006 82.93236346571244 2007 82.10674405139375 2008 82.5947381090273 2009 74.57078649160361 2010 78.48640491673507 2011 81.52333840370281 2012 87.644345328478 2013 82.46915102152529 2014 78.5745256009677 2015 68.36962431797379 2016 58.89917280545616 2017 60.45594703105088 2018 63.59998329359423 2019 57.89661850032367 2020 53.554649859288396 2021 64.08875095855703 2022 69.74709182960027