Year % GDP 1960 11.72691872277001 1961 11.26578877648014 1962 12.896840887999907 1963 12.464419201520458 1964 12.072621310518365 1965 11.647748365388507 1966 10.057503253861574 1967 8.831334111054684 1968 10.066712557291995 1969 10.729908479434373 1970 10.472451135200638 1971 10.795072468478851 1972 11.569623248614967 1973 15.28682917203415 1974 17.741325184391254 1975 17.629736868209076 1976 17.779466978543606 1977 20.03495795515885 1978 26.497257971426674 1979 26.743329218985917 1980 28.298330415739294 1981 29.121471766445296 1982 26.905112385369122 1983 27.098054230804813 1984 24.536166305226796 1985 23.12703675079873 1986 20.979002084597195 1987 20.70358174523578 1988 22.600201854577517 1989 21.78219795564808 1990 20.448604431521336 1991 19.37478777562053 1992 20.417269034706994 1993 20.44777993030091 1994 12.599699377418217 1995 11.33181381781794 1996 12.33924996030558 1997 12.226856376164825 1998 11.46281085916558 1999 11.982950907169183 2000 14.575522343576857 2001 11.237106650157015 2002 11.895378157859675 2003 13.037155101590692 2004 14.364386571157292 2005 15.626941498872377 2006 15.772698778992428 2007 16.194550945715687 2008 18.86541402288378 2009 19.417353053877346 2010 21.31374792036558 2011 23.874442673665534 2012 24.432481377244923 2013 26.316513136267528 2014 27.31693756841942 2015 27.304686269201657 2016 27.798279873530184 2017 29.664784802757033 2018 29.551616586005235 2019 29.51666583236701 2020 29.30675397436297 2021 29.901568002523277 2022 32.37293507611309 2023 31.125881984899546