Year % of GDP 1965 74.937342482899 1966 74.41415446369982 1967 74.33782456477991 1968 75.90733513361461 1969 75.21845808535795 1970 70.45883337968019 1971 75.30832579778868 1972 75.26492033883257 1973 71.8499306048157 1974 69.24706415770109 1975 71.99085600665438 1976 76.37544678452447 1977 64.43644932688956 1978 63.448015723773274 1979 69.40671782692056 1980 68.55552742038122 1981 71.51804056824415 1982 61.59953689122353 1983 63.347215549760435 1984 61.81502266274448 1985 64.33408915516533 1986 62.65159325963491 1987 66.85203478671305 1988 68.30177596641559 1989 69.16113994846978 1990 66.56824278121675 1991 64.69373133346143 1992 70.65064350154105 1993 65.94824465780727 1994 65.96057252988743 1995 65.08951939460546 1996 67.69787694716392 1997 66.63489626429991 1998 69.32520254952283 1999 69.64707374135715 2000 70.22987502764833 2001 70.60460563004604 2002 71.90725983550116 2003 72.08040738993662 2004 70.87934769619552 2005 71.14568897251597 2006 71.04920383641775 2007 70.80938360234077 2008 72.11254030228112 2009 73.19092272408018 2010 72.85930335457792 2011 72.27550888698734 2012 72.02387274910855 2013 71.48036785054276 2014 71.82567086756788 2015 73.0581065048367 2016 70.79627354572179 2017 71.3712625886384 2018 71.6570474634682 2019 72.64733500254822 2020 73.32481780796708 2021 73.53234960654562 2022 73.98277166663648 2023 73.30000000011107