Year % of GDP 1960 29.393687414199814 1961 41.64747701498392 1962 45.189526667463895 1963 45.69418829890608 1964 43.88942279449587 1965 43.60071034613349 1966 43.365988880058666 1967 45.41197939885815 1968 46.26819923268503 1969 42.42349329624804 1970 39.93190777015387 1971 38.66129162628709 1972 37.40507734718717 1973 37.55363435900797 1974 36.44445087470115 1975 34.83636571882138 1976 33.768251516799204 1977 30.415971299213385 1978 28.09873025911512 1979 30.953526592590887 1980 28.221278951578466 1981 28.145919821282174 1982 28.494504483954902 1983 29.739623097291258 1984 29.229054825879675 1985 27.279590320692826 1986 25.756336042539584 1987 25.616366870693213 1988 24.87790931583424 1989 23.218498492795085 1990 23.248775241550078 1991 21.384401061502615 1992 19.780144220568545 1993 17.5948819810073 1994 17.795835012044893 1995 17.96275082482962 1996 17.6666425129569 1997 16.87344589141406 1998 16.92165703370401 1999 16.03889157203695 2000 14.47460206259405 2001 13.899380632539572 2002 13.486836804381824 2003 12.788954193782539 2004 13.07280715972469 2005 11.91425713174584 2006 11.151223986489118 2007 10.97716084694518 2008 11.073802586446151 2009 10.636539288066126 2010 10.318834164081286 2011 10.204060795698718 2012 10.001759022811347 2013 9.741670715619954 2014 9.381817650886518 2015 9.040984175057345 2016 8.752003223794441 2017 8.19909787049612 2018 7.720171263843083 2019 7.781545647142892 2020 8.373898126722077 2021 7.912968425609268 2022 7.931296591989896 2023 7.755169976684331