Year % GDP 1962 18.709247390676197 1963 19.595749722428135 1964 20.971656948753246 1965 19.84472081384647 1966 19.145469386494014 1967 20.559308838544354 1968 20.65258465101321 1969 22.33681810197372 1970 23.037533577195866 1971 25.527280256129142 1972 28.515340386146406 1973 31.366481716789647 1974 32.98240900401157 1975 35.0533266466784 1976 34.91741270002413 1977 39.05600332657174 1978 38.74018275685871 1979 40.40927669636268 1980 40.761896654843156 1981 41.763115755119465 1982 41.11196106345313 1983 42.26379671959169 1984 36.4147866000749 1985 34.05086764528592 1986 33.86367684630898 1987 37.93906681758772 1988 37.6578524090097 1989 35.54779410803793 1990 36.495014539895635 1991 36.01034154457637 1992 32.05944863007663 1993 28.655824627045668 1994 18.522067135136787 1995 18.504632309481558 1996 11.235645369763306 1997 11.101281947502152 1998 10.25233579267229 1999 9.471890153657663 2000 9.761974871572754 2001 9.444312816170557 2002 9.641545204666782 2003 9.025656485758523 2004 9.483030119837167 2005 8.854635466395468 2006 10.149368807963977 2007 12.15520837459539 2008 12.032312209459402 2009 12.699282868800962 2010 13.087871959380495 2011 13.168148828706006 2012 13.683455540714325 2013 14.317568604292195 2014 14.6906998099912 2015 16.74171162918006 2016 17.66943079987434 2017 19.250513481787554 2018 19.2748278273806 2019 19.0476721988887 2020 20.573802494308527 2021 20.996303820512765 2022 21.076737447188187 2023 22.45727028076697