Year % GDP 1960 17.463134898962316 1961 16.758241758241756 1962 17.833731544446486 1963 17.41829167811041 1964 16.073260073260073 1965 14.897373648201281 1966 13.597513597513597 1967 12.774183367524063 1968 14.17093343836156 1969 14.75172567356936 1970 12.290729635182409 1971 12.367805195959356 1972 11.831753356870813 1973 10.277708281210908 1974 13.217316913933228 1975 16.600082915614518 1976 17.10169137607016 1977 18.71764576913239 1978 18.320743515732154 1979 18.995750887874173 1980 13.936376543074298 1981 25.895108267656447 1982 24.70876380477378 1983 25.84812030075188 1984 26.21582278481013 1985 27.19865951742627 1986 29.224263038548752 1987 28.895145631067958 1988 28.133279220779222 1989 26.53012987012987 1990 25.525678496868476 1991 22.05863111111111 1992 22.270452911574406 1993 23.76578608247423 1994 27.903657142857142 1995 32.733823529411765 1996 36.534394071490844 1997 39.69360661902971 1998 46.55501043841336 1999 52.00182054616385 2000 51.95327844751544 2001 54.93114022860329 2002 54.65539720242808 2003 53.89762874251497 2004 54.04291427982692 2005 51.165434053110495 2006 49.290979735308404 2007 45.51522156659506 2008 42.79751378034617 2009 36.09271335070044 2010 33.07229522141886 2011 31.154923289938225 2012 27.38844972950397 2013 26.222439495804338 2014 25.60668053929178 2015 26.316393760304962 2016 34.134862625263935 2017 27.069824673725428 2018 24.29527907076422 2019 22.84873089727627 2020 25.789474254786594 2021 28.23075438942774 2022 30.84700211667198 2023 29.257821539346356