Year % of GDP 1960 79.03647918881875 1961 70.1006928300889 1962 79.24613952427868 1963 82.0133738769648 1964 75.90075080542552 1965 75.49703162564859 1966 77.7942255677275 1967 76.2864326203048 1968 77.22876307766298 1969 76.00940297901573 1970 74.69422200532303 1971 76.48769208079543 1972 75.74856529136397 1973 77.20301838840838 1974 77.12610693541228 1975 70.71378386660037 1976 66.01676768399288 1977 66.7688129390393 1978 69.30685261787882 1979 73.96203370364172 1980 76.16394319373431 1981 77.75979224629563 1982 75.6755519963391 1983 75.79687642707097 1984 77.2024983563445 1985 76.94816211121582 1986 80.70031349846255 1987 80.14769225494271 1988 78.04019376564442 1989 78.00643795773543 1990 80.27480201061886 1991 83.76598498142641 1992 84.83219624998797 1993 82.71634104364097 1994 83.1088093536358 1995 81.91024437884099 1996 81.02540531453731 1997 81.3883852297522 1998 81.54813118993003 1999 83.86547652218691 2000 83.11620311132418 2001 83.0682586224061 2002 74.13367115618402 2003 74.63586320643665 2004 75.44613691730237 2005 75.17125338242361 2006 75.69960342785869 2007 75.52055680379837 2008 76.70809673607913 2009 78.88204443411304 2010 79.39783265264109 2011 79.90927779657261 2012 81.54883691777422 2013 82.79380332396697 2014 82.33295546219502 2015 84.00421710391329 2016 83.37646965147303 2017 84.43646724355577 2018 85.27527944361802 2019 82.57082789093835 2020 82.57771419189464 2021 78.72857418105635 2022 80.91730803665297 2023 82.9500679826014