Year % of GDP 1960 54.91923641703378 1961 51.738525730180804 1962 52.80199252801992 1963 53.32618025751073 1964 50.49701789264414 1965 46.14670380687094 1966 47.20252167060678 1967 44.53125 1968 41.58730158730159 1969 40.8675799086758 1970 39.083969465648856 1971 37.360824742268036 1972 34.31338637149775 1973 33.956043956043956 1974 36.00242033077854 1975 35.37077257213776 1976 32.51943634596696 1977 31.439931837546155 1978 31.803527403754977 1979 27.907562722724165 1980 26.14614002217719 1981 24.1627642070624 1982 22.353748498884887 1983 20.91501387910081 1984 21.20143109773561 1985 19.69055861862632 1986 19.51260099492358 1987 17.818470890060347 1988 17.25895631246397 1989 16.58598150040537 1990 17.476228832122917 1991 15.247075582324488 1992 14.983665152080544 1993 15.41601856148679 1994 15.462834771871611 1995 15.693203082977822 1996 16.85455609449759 1997 14.461152693252691 1998 12.450316631803686 1999 10.457825944145593 2000 10.032852654325763 2001 8.78803796915921 2002 10.190758557408842 2003 9.795149777983776 2004 9.327422757843674 2005 9.16534055228687 2006 8.094881288228589 2007 7.457027437082266 2008 7.424668468836924 2009 8.07198879989725 2010 8.966928134333196 2011 8.173956265225376 2012 7.694877592023171 2013 6.676108122978507 2014 6.557235473396572 2015 6.8683753450583165 2016 6.142292064038749 2017 6.038629795689189 2018 5.791620050803394 2019 6.401760693499714 2020 6.669941252648276 2021 5.533753092207952 2022 6.476925804115383 2023 6.183292267602533