Year	% of GDP
1970	9.010361227022836
1971	8.504507302159277
1972	7.828156378697236
1973	9.470290038354225
1974	13.571248116926531
1975	12.06741402357339
1976	12.067521950276047
1977	10.839526918280932
1978	8.874594285313044
1979	11.79835452313474
1980	13.801142551876222
1981	13.223232886369654
1982	13.09306926576419
1983	11.50792743671319
1984	11.703741057787
1985	10.491889870394802
1986	7.098319758864363
1987	7.035788819443142
1988	7.479299962128673
1989	8.60676172469505
1990	9.285617818181898
1991	8.143276540645873
1992	7.499783799308633
1993	6.809425135253315
1994	6.970479106060662
1995	7.573634501407652
1996	8.938123142022187
1997	9.399821983591435
1998	8.629380123743378
1999	8.320091715130895
2000	9.098877381154939
2001	9.482804508722687
2002	9.5916764589296
2003	9.860323691152486
2004	10.878088798111223
2005	12.414058855740565
2006	14.359002052057457
2007	15.527450681156063
2008	16.8939331648175
2009	11.970600785875575
2010	13.579969244196096
2011	15.420498467279756
2012	16.0561363041928
2013	18.194611919073814
2014	20.012779220178448
2015	17.990648516826962
2016	15.252277609528614
2017	16.831774467384957
2018	18.294986203584752
2019	17.752891680892358
2020	15.797277625645552
2021	18.646006651810065
2022	25.302009022170584