Year	% of GDP
1960	7.56220384723072
1961	8.409569530233968
1962	10.39580344344342
1963	12.015709129874374
1964	13.922171799335965
1965	14.773136598194059
1966	16.268588722335732
1967	18.022807950443667
1968	17.79935449980989
1969	16.770979464733053
1970	14.138804367438535
1971	16.00200037949969
1972	15.960146418429078
1973	12.914993511065749
1974	10.093067815660994
1975	11.616496516129647
1976	12.488109627339327
1977	14.525812095043959
1978	16.18042928133234
1979	15.114262420854642
1980	16.72335617370015
1981	9.492790464917986
1982	10.571862918452268
1983	11.981369279755684
1984	12.962940650120073
1985	13.770900200123375
1986	16.99275731366216
1987	16.693121535248366
1988	16.67708599190296
1989	16.933591352546486
1990	15.077011472717684
1991	14.835318017079148
1992	16.254752753809246
1993	15.168195341290515
1994	14.757854248858516
1995	12.847179468436304
1996	11.794050908508014
1997	12.3372809066921
1998	12.486222665236117
1999	17.617273889475623
2000	14.396216462989042
2001	15.013466369678877
2002	15.414891762822673
2003	15.63198036249847
2004	15.761085361210082
2005	15.385294152534318
2006	15.000943241868352
2007	18.02556275542049
2008	20.92987816526589
2009	20.002488923217904
2010	16.602853226261878
2011	14.92243614398548
2012	14.235232292829012
2013	14.221684184721868
2014	15.446623450653803
2015	15.653221463729976
2016	16.913560738619733
2017	16.731564709119684
2018	15.944542822904182
2019	16.416115836508308
2020	17.574859572084723
2021	18.15969294367699
2022	17.86529248347605