Year	% of GDP
1965	30.87649402390438
1966	29.690346083788704
1967	33.33333333333333
1968	40
1969	32.80212483399734
1970	34.831460674157306
1971	34.52868852459016
1972	29.69858156028369
1973	30.77922077922078
1974	31.06904231625835
1975	25.797373358348967
1976	26.582278481012654
1977	26.475037821482605
1978	24.983119513842
1979	26.808878639377344
1980	40.48901944990642
1981	40.007985625873424
1982	40.346068185711836
1983	44.44803620494586
1984	41.795750514050724
1985	43.76323987538941
1986	41.401149761278376
1987	39.897418649625834
1988	36.661793682069536
1989	34.85064367815715
1990	39.64365236046696
1991	39.84468190921037
1992	42.022371170987846
1993	41.32754241636306
1994	37.882306056289245
1995	36.0817442068479
1996	35.917670168246644
1997	35.15992408723071
1998	34.95782784252547
1999	35.09826156839523
2000	45.55753657686167
2001	45.12386058543536
2002	44.44708961641716
2003	45.93397568212394
2004	47.51216673413575
2005	46.570295542751154
2006	46.932140701456795
2007	47.0545044874931
2008	48.48948753851495
2009	48.56314846063714
2010	49.552576625360956
2011	50.15466943556467
2012	48.38823578073564
2013	49.43570932775146
2014	50.2585353765025
2015	50.07913454919651
2016	51.35003299062551
2017	53.06805210889998
2018	53.31838588065856
2019	51.76243298066081
2020	53.7871957708998
2021	53.914292144838896
2022	53.025201053069814
2023	53.51056633814666