Year	% of GDP
1965	56.888058608058614
1966	57.67059210526316
1967	56.87048192771085
1968	57.04847411444142
1969	57.06677339901478
1970	52.461644144144145
1971	53.52795918367347
1972	54.283345132743364
1973	53.751070911722145
1974	53.02333333333333
1975	52.61309090909091
1976	53.72619256017506
1977	52.74030286641428
1978	53.022648694908
1979	52.88076923076923
1980	59.8809312621193
1981	60.73436249360456
1982	61.25531738439361
1983	59.12548893192605
1984	58.81775860788091
1985	57.95545863368382
1986	58.46862564232654
1987	55.891810130011606
1988	57.00251461822737
1989	58.668241754828266
1990	59.693961913624904
1991	60.37868602281006
1992	61.80759134607114
1993	58.22604918039317
1994	58.65745415547683
1995	58.764171203771085
1996	57.36301640855408
1997	56.769318062084096
1998	57.256916354196186
1999	57.35945748858167
2000	58.02238673656065
2001	58.74315273795566
2002	59.1238892408714
2003	60.53120303556062
2004	59.58693092922769
2005	60.04398767207281
2006	59.067180844646906
2007	59.30336205028625
2008	59.68141437418545
2009	60.9462035690472
2010	60.47834906467171
2011	59.88664884573674
2012	59.93720730763287
2013	61.06657772453925
2014	60.078270563836924
2015	60.506135976252075
2016	60.075068387994456
2017	59.36533103403258
2018	59.269579211412385
2019	59.22502268449441
2020	59.23560145480242
2021	58.19772293077128
2022	58.009858341473965
2023	58.31887734323424