Year % GDP 1960 11.240575736806031 1961 9.227871939736348 1962 8.617594254937163 1963 9.525389976767341 1964 9.523809523809524 1965 8.551724137931034 1966 10.545267489711934 1967 11.12626381377851 1968 13.41240478781284 1969 14.857601283594063 1970 16.43577296489918 1971 16.679666725757844 1972 16.17820790922743 1973 17.998138957816376 1974 13.047239970671415 1975 11.743157894736841 1976 12.972977730833554 1977 13.223615186271894 1978 13.088191212431962 1979 16.10858909584496 1980 16.681631299734747 1981 20.115154672207556 1982 25.818188105117567 1983 29.775340599455042 1984 31.562355287892046 1985 29.946871794871793 1986 33.9110153876044 1987 30.263567474429713 1988 40.41580571328675 1989 25.676942440093462 1990 27.16852322381832 1991 17.42143150438844 1992 19.196638421705824 1993 18.603421622353018 1994 20.04993826223828 1995 26.02243439316691 1996 39.34558605904216 1997 45.43350665332157 1998 52.55438466603446 1999 50.065748434117964 2000 50.47444911171603 2001 52.84704558490838 2002 53.3502597115087 2003 45.22681238546757 2004 41.11584006349633 2005 41.794046802084026 2006 16.65694289071974 2007 16.72586532791172 2008 17.71866364126689 2009 18.22978642224656 2010 19.56154393186461 2011 21.54972976066748 2012 23.39842004353712 2013 26.091237934548772 2014 28.742224997326772 2015 29.331431958212782 2016 28.55064311330086 2017 27.520309280051563 2018 28.231958003689396 2019 28.076493874928737 2020 27.203397021521674 2021 20.17701827176099 2022 12.594479078897047 2023 12.857878368449324