Year	% of GDP
1965	24.531794595755464
1966	23.813016307659424
1967	24.261573554726734
1968	24.524705341972023
1969	25.331772511030103
1970	28.431819055953763
1971	28.946876090141178
1972	28.263069919662165
1973	30.305596324763336
1974	29.88797599860064
1975	30.380929604828808
1976	28.03143019904697
1977	27.024328985921084
1978	27.358740494826534
1979	27.487116968090472
1980	27.92828845474754
1981	29.910368900476143
1982	29.802084969508265
1983	31.533075509675918
1984	30.93095777155279
1985	28.018809954516467
1986	27.88005726808967
1987	29.569042531949147
1988	30.8520169285498
1989	30.769150885022526
1990	29.850600001299256
1992	36.59518050553126
1993	35.50187361653373
1994	37.85887337784586
1995	39.73833376532721
1996	40.414415186666936
1997	40.604109094648784
1998	42.87673923832791
1999	42.85197138337219
2000	39.590205571072
2001	41.74272893139195
2002	32.50683681286789
2003	37.142182289684484
2004	38.85791935656274
2005	39.57295935243098
2006	42.26404478331388
2007	43.63322894455929
2008	40.59862106044599
2009	42.157911599801785
2010	41.5200934648397
2011	39.898124019353666
2012	40.35697123160167
2013	38.37862099198379
2014	37.729416209954394
2015	39.234943146914574
2016	38.84606032425245
2017	38.46683819206288
2018	36.91029116166546
2019	37.08487525582307
2020	37.59798144200606
2021	35.83882960262797
2022	35.18551437378754
2023	36.53997078399014