Year	% of GDP
1965	41.6698905275272
1966	40.45752734870949
1967	42.71362783705916
1968	42.33466471129477
1969	41.6395699421262
1970	39.907124579081795
1971	39.44294150478573
1972	38.566569822432584
1973	40.182310234114965
1974	37.87923596468514
1975	36.76695407702819
1976	32.24936241359705
1977	33.473789159522326
1978	33.463604833941766
1979	31.53307253908772
1980	29.978273653869508
1981	24.60238177419409
1982	24.67555142056588
1983	25.857709269868177
1984	26.256995618867673
1985	25.360940408281575
1986	25.690689107712917
1987	26.29496910615642
1988	26.737380071953766
1989	25.702045094145433
1990	25.40403415686668
1991	25.203665854704653
1992	24.269685282544273
1993	23.682661918666
1994	23.896442758569698
1995	22.92998161134315
1996	23.208389859205234
1997	22.849634061124647
1998	22.773724027007088
1999	21.116567273902266
2000	20.146949673645697
2001	20.083014411232654
2002	19.853391874978872
2003	19.672151494568148
2004	18.341244911921464
2005	17.92014135791392
2006	17.26972534657203
2007	17.087038885561107
2008	17.347157641505984
2009	17.397329760029184
2010	17.208290159926282
2011	17.239630328093206
2012	16.68014053169556
2013	16.56710879649761
2014	16.293485275742757
2015	16.12281920519605
2016	15.978705341870558
2017	15.900076016759815
2018	15.454979900782744
2019	15.594578070850082
2020	16.948963710490784
2021	16.354375782951585
2022	15.843383265155303
2023	15.456141090945536