Year % GDP 1961 12.305794219401719 1962 11.80493182313206 1963 13.175194734515294 1964 13.694985424792867 1965 13.76263012419476 1966 12.61120310036029 1967 14.584279872785096 1968 12.890010758917485 1969 12.729192665834693 1970 15.118918730136555 1971 17.432534559309758 1972 16.48604836566569 1973 17.893316634407377 1974 17.976430658998773 1975 17.333166207069443 1976 16.827084479911942 1977 17.50860261304371 1978 21.7120303649749 1979 20.973264097502362 1980 21.811778081551548 1981 21.003079850361196 1982 20.437024362328785 1983 19.323011551383175 1984 18.9864033544518 1985 19.334084569632857 1986 19.31198823090715 1987 18.4164177260937 1988 18.926142832344848 1989 19.224478753738907 1990 18.656532352075594 1991 19.958072590222404 1992 22.152450240505292 1993 18.496196443499045 1994 19.834155886068864 1995 25.81411778087661 1996 21.681626109378225 1997 24.355177830310538 1998 23.96341678418238 1999 26.56944193000273 2000 25.75838276805577 2001 25.22268669512292 2002 25.854601834826674 2003 25.15567522279025 2004 27.287516032727815 2005 26.27687547004891 2006 22.888310996038754 2007 23.04496428158565 2008 25.380611749054033 2009 21.874821577017727 2010 23.986636546331752 2011 27.365952845287726 2012 26.402234114029415 2013 28.332172204347057 2014 34.52206517783866 2015 36.69932935083974 2016 35.57107321343974 2017 33.15059930311057 2018 31.198689767300152 2019 30.832028770159724 2020 32.149807420893474 2021 31.123124019926735 2022 31.542049843810677 2023 31.81593391499966