Year % of GDP 1960 28.889488080955545 1961 26.92919556037628 1962 24.149154986488526 1963 27.067223604326774 1964 25.475957980725905 1965 25.931506342720546 1966 27.744844882592 1967 26.9541737450129 1968 26.797485455858 1969 30.144067458323505 1970 28.325113210565974 1971 22.880632447498307 1972 22.721341161196854 1973 28.68984155889253 1974 38.83657756599814 1975 50.684436703730654 1976 44.248536132076076 1977 41.74891303252524 1978 43.47639320780096 1979 47.67602997498536 1980 48.120028034185566 1981 41.759412912864825 1982 39.86521158411257 1983 44.820035529341965 1984 47.261803262880534 1985 50.58382571101433 1986 52.05370914551184 1987 54.19303685549994 1988 58.45454036702381 1989 62.97292377495286 1990 61.74569051564263 1991 58.09429367480462 1992 56.25405055453033 1993 53.60906439619827 1994 53.2150287143034 1995 54.96715327743365 1996 53.92074989482509 1997 54.099298179138756 1998 53.836178516795684 1999 54.6956098331962 2000 58.711923089314155 2001 62.1447669692049 2002 62.48385190237803 2003 65.69341959090498 2004 69.88936005342741 2005 72.06253423926228 2006 73.71163504556164 2007 76.97702471464738 2008 80.67662624017589 2009 66.68603096269113 2010 69.71768013610627 2011 72.48164281003716 2012 68.15614289316592 2013 65.14328795371958 2014 65.63462812034024 2015 59.34911047872051 2016 56.05786108693916 2017 56.02615896657519 2018 58.17705063317309 2019 57.61175456808293 2020 58.18286356297483 2021 64.83844725415652 2022 74.98778021397673 2023 60.96709399459499