Year	% of GDP
1965	18.74996222197731
1966	18.39582336168076
1967	19.369884955006047
1968	19.715168690094014
1969	20.109624135407422
1970	20.246152374382234
1971	22.2147347377324
1972	21.34571609807972
1973	23.006646234961007
1974	21.755492360595117
1975	22.535269116670822
1976	20.54806022983009
1977	21.27670417705063
1978	22.61249048479421
1979	22.387348037670687
1980	23.044033602919036
1981	17.96088503718719
1982	18.634746107207363
1983	21.81785065304498
1984	22.302724608499673
1985	19.90642574603718
1986	21.944317042362275
1987	23.719571602335332
1988	24.461329533701733
1989	24.49462139893063
1990	23.748898916314797
1992	27.85941619527065
1993	26.306518770557396
1994	27.104996162392553
1995	25.612354989673744
1996	23.534884234549946
1997	24.00262744488577
1998	24.114245849662
1999	30.756693571313825
2000	29.1811584705967
2001	29.771668497778126
2002	22.724943688982332
2003	26.655532036482644
2004	27.66152892433724
2005	27.73161204879668
2006	28.24693681103693
2007	30.399301975774325
2008	29.157192354818047
2009	31.05893779610863
2010	29.353228253193045
2011	27.909481715713394
2012	27.472982281555854
2013	26.057342828042263
2014	26.028026000580883
2015	27.300214868043387
2016	27.81189949625031
2017	27.938841117982484
2018	26.145107462689783
2019	25.685721483583883
2020	26.42496435503018
2021	26.449662753579332
2022	26.418044071792494