Year % GDP 1960 17.65051395007342 1961 12.726008344923507 1962 14.10958904109589 1963 14.05579399141631 1964 14.701789264413522 1965 16.211699164345404 1966 17.005516154452323 1967 17.670454545454543 1968 17.822222222222223 1969 19.31392694063927 1970 18.013740457949567 1971 16.467216494792204 1972 18.163957108223798 1973 18.971153846085137 1974 17.935256151670917 1975 19.727582997205086 1976 20.566690961975706 1977 20.39799299431828 1978 17.45457993545515 1979 14.69281163380998 1980 13.588383741822124 1981 16.64666497911657 1982 18.482882522254627 1983 20.760402134361204 1984 17.846443394811136 1985 17.425880810930174 1986 19.654145612802054 1992 13.16183884991452 1993 16.969170631086776 1994 14.579903415869397 1995 13.409557093665306 1996 16.407900610849335 1997 19.306639772197872 1998 15.508415750473823 1999 15.485496717974844 2000 16.422437016597552 2001 14.904539946514586 2002 14.510744314857844 2003 15.723989419506031 2004 18.20790937910036 2005 23.257521018067823 2006 28.675528064128915 2007 34.51556138766117 2008 38.34367926505353 2009 40.08320302549331 2010 42.304474781716124 2011 43.3677100449365 2012 44.11591923593007 2013 47.45503385977656 2014 49.032826278648436 2015 50.58611775418051 2016 51.99511555321443 2017 50.89617705417748 2018 47.53753128077654 2019 45.88397019081695 2020 51.35834635706682 2021 47.488124440789434 2022 38.91815307348368 2023 37.1161529498414