Year	% of GDP
1972	13.852269296568382
1973	13.438246332309792
1974	14.420480568752778
1975	16.08135141142476
1976	13.263317727445273
1977	12.537332955462057
1978	11.350963163230821
1979	11.03149778133411
1980	10.307189445816633
1981	9.712615555526167
1982	7.978324503471466
1983	8.457150293907121
1984	9.022770398481974
1985	9.691245589677616
1986	11.281895538420873
1987	11.244621400132122
1988	11.700887353312735
1989	12.384591795815346
1990	10.296789281240358
1991	7.590817697999953
1992	10.870335377271594
1993	11.154462736088984
1994	10.534158020129162
1995	10.574624839150893
1996	10.344342525508722
1997	11.408787925252453
1998	11.431669659002102
1999	11.529295481642583
2000	12.164413656634888
2001	13.380506985606505
2002	13.216727612613575
2003	11.745142976412781
2004	12.521884318830095
2005	13.698161122021288
2006	13.994759893545417
2007	14.886268365310487
2008	14.161053517159763
2009	12.635909352309408
2010	12.207401125726012
2011	12.297625512720249
2012	13.026482966777554
2013	13.503535632633422
2014	13.38644703573343
2015	12.811847960953843
2016	12.910868547508752
2017	13.030751059433971
2018	13.024934988757938
2019	13.302778595113503
2020	12.389879902419516
2021	14.377413209854465
2022	13.820274440264328