Year	% of GDP
1970	5.563107528815255
1971	5.4052453105550065
1972	5.538460335702168
1973	6.6837802797296995
1974	8.196121904451275
1975	8.232279109076837
1976	7.980892617320697
1977	7.654290031923898
1978	7.947060702100996
1979	8.759034351564877
1980	9.826455470133242
1981	9.517776667027332
1982	8.469732988534863
1983	7.62226481946529
1984	7.48907832424752
1985	6.988072539645848
1986	7.009254675758811
1987	7.49591933621889
1988	8.490523519995845
1989	8.93879019707245
1990	9.254732067513379
1991	9.660905122318809
1992	9.708914905648138
1993	9.54718039168286
1994	9.893147415563321
1995	10.639223880260989
1996	10.746635564283558
1997	11.119757711757387
1998	10.515262528196255
1999	10.309337222925725
2000	10.69277272979134
2001	9.703448208733965
2002	9.13138565379718
2003	9.035652405413543
2004	9.62874787307988
2005	9.982056410375579
2006	10.641389509223027
2007	11.463789295014559
2008	12.425843924608097
2009	10.932219059353711
2010	12.341355432208621
2011	13.563463782582932
2012	13.644051268705429
2013	13.553491881815447
2014	13.508214213223454
2015	12.41114863012714
2016	11.888159227325328
2017	12.177481026766024
2018	12.287110759626648
2019	11.795006782785224
2020	10.083557856675554
2021	10.807979357151815
2022	11.633908620955133