Year % of GDP 1960 10.65901107590313 1961 10.297902976948153 1962 9.02907472627171 1963 9.69623470515783 1964 10.237078221775077 1965 9.322426348943068 1966 10.947546487166536 1967 10.04152829286606 1968 10.164782382074057 1969 9.421704134050136 1970 9.691229139539837 1971 9.799349463619576 1972 10.661332782723312 1973 13.201755856333797 1974 16.657748078705755 1975 15.647560932244144 1976 15.314488211290861 1977 15.198116534292978 1978 20.379295907300364 1979 22.659158576503994 1980 27.343442880075223 1981 29.46070700982034 1982 25.395646049964025 1983 24.41981378719091 1984 24.90566791332326 1985 25.89416366851293 1986 25.018672289177317 1987 29.980633550588287 1988 34.963952507574106 1989 32.034951014284566 1990 32.29137888793672 1991 34.117043590887846 1992 37.605351873248416 1993 42.34543581481014 1994 43.06749959110651 1995 42.629127852271075 1996 42.12876377189659 1997 43.79087062314935 1998 45.63894746165924 1999 44.566253028434105 2000 51.10187776297344 2001 49.79937838106253 2002 52.38196265552539 2003 59.66992287685063 2004 67.35906340564478 2005 69.81249511904282 2006 71.10559140428238 2007 68.73682409424782 2008 64.94759025723945 2009 52.21707516276027 2010 56.89601308724391 2011 57.49921034387772 2012 55.05481593695684 2013 53.48651040609052 2014 51.870847154985185 2015 46.703719287776025 2016 44.09037962416921 2017 45.36530607262384 2018 45.66211060730608 2019 43.29057183480528 2020 41.18801649790809 2021 45.2948728524749 2022 47.529577182889994 2023 43.79926636587009