Year	% of GDP
1960	8.370044052863436
1961	9.318497913769123
1962	9.838107098381071
1963	9.44206008583691
1964	9.840954274353876
1965	10.30640668523677
1966	9.929078014184398
1967	10.15625
1968	9.968253968253968
1969	9.817351598173515
1970	10.585241730279899
1971	11.463917525773196
1972	10.75752334832238
1973	11.236263736263737
1974	10.528438886647843
1975	11.014582686937635
1976	11.41885325558795
1977	12.231373662785193
1978	12.124660218724319
1979	11.749037111695044
1980	11.553167896608416
1981	9.840526515630934
1982	9.94357713348964
1983	9.388168965467647
1984	8.335644244013983
1985	7.515493439329829
1986	7.588005317222437
1987	7.822873883024924
1988	7.612643113341511
1989	9.343364248105896
1990	10.961018185000668
1991	12.419251094519128
1992	12.92501701165573
1993	12.893866596806616
1994	11.657367586238042
1995	10.78580270489388
1996	11.570772739022757
1997	12.259391798341033
1998	10.613223131728803
1999	12.668562154505004
2000	11.928657183236682
2001	12.64592113744455
2002	12.835665994556065
2003	12.590418849629192
2004	12.315200518515551
2005	12.185974826097578
2006	12.907527694586395
2007	13.389690473898217
2008	13.596292539919993
2009	15.657859418957306
2010	14.874557905452127
2011	13.60035516944411
2012	14.126122892403734
2013	14.018384713403375
2014	14.019979753565634
2015	13.805172456767012
2016	14.733212973823193
2017	14.380255418099381
2018	14.508890221808876
2019	15.270948061633097
2020	14.993511718570494
2021	12.94541329951922
2022	11.653212809730174
2023	13.616329686377568