Year % GDP 1969 1.2280096450013602 1970 2.274690315139766 1971 13.099378554581248 1972 3.4570113426080904 1973 6.325183132783416 1974 6.689119756038997 1975 7.1738308001772095 1976 13.438639108568616 1977 15.963259341134757 1978 15.210768750390864 1979 13.520313052193238 1980 12.944116166305637 1981 13.697569587918208 1982 19.009468828415425 1983 24.478579659718033 1984 26.571490492684557 1985 29.54893686237953 1986 34.50303689194684 1987 29.267784837342862 1988 35.29675561459048 1989 25.299032515158252 1990 20.642115311130585 1991 19.730102518260875 1992 21.54680996458647 1993 21.08715469525258 1994 16.835024482436893 1995 16.496976388992984 1996 13.592576107751976 1997 10.035478393195076 1998 9.69350160041085 1999 8.509746842637906 2000 8.554809679311708 2001 7.715966766605696 2002 8.98262500815118 2003 8.39192169907653 2004 8.53248289228037 2005 8.239548499721531 2006 6.944297649305338 2007 7.342742101071078 2008 7.547544216489233 2009 9.03059350994755 2010 8.896819340486157 2011 8.54719167054098 2012 10.56701492236676 2013 12.032569161855447 2014 13.676667084552646 2015 15.427732267849319 2016 17.040405417493723 2017 16.810393208740383 2018 14.00491205574264 2019 13.366284069878606 2020 17.73789896403345 2021 16.864136067640164 2022 14.026781578644805 2023 13.545351302889173