Year % GDP 1960 22.229097074448347 1961 22.822576227888472 1962 19.852936213236536 1963 22.32227133745929 1964 22.61537939645091 1965 20.12345264949534 1966 19.464944649446494 1967 19.280825219319386 1968 18.053054662379424 1969 16.924538127453197 1970 16.285526315789472 1971 16.068765703912387 1972 15.514975845410628 1973 15.31539735099338 1974 15.091554293825407 1975 17.17396593673966 1976 19.87132556849695 1977 20.70691489361702 1978 19.879475542107915 1979 17.877254901960786 1980 15.537180910030521 1981 17.390068303489016 1982 18.47239436605634 1983 19.01288788788789 1984 18.83735002608242 1985 20.729707457766793 1986 31.679581519723616 1987 27.067057934427012 1988 16.240364188163888 1989 14.733962882989161 1990 15.692257217847768 1991 15.996747755951606 1992 15.756311179804225 1993 8.685699250098672 1994 7.698094384950527 1995 8.112384018178375 1996 7.5472032007386325 1997 7.8577118831599915 1998 9.73915311712025 1999 10.901745670323605 2000 4.780545256270448 2001 4.897427134697066 2002 2.8660743978336263 2003 3.6358401417462347 2004 2.93264923853734 2005 2.2103552237435293 2006 2.0104197616463515 2007 2.1700179223150666 2008 3.213301676784703 2009 4.872240314695317 2010 5.9797400792006945 2011 7.169385399923931 2012 7.412754333223958 2013 8.878672805256478 2014 11.159852525891793 2015 15.227252169824556 2016 17.93956499275978 2017 15.784514445444165 2018 13.003578111748789 2019 12.639976684660484 2020 15.556435969961328 2021 13.902630970771046 2022 12.766426928126887 2023 13.790047850658684