Year	% of GDP
1960	9.99668529799247
1961	10.782353406333499
1962	10.74675128332278
1963	9.983485122160243
1964	10.028412416521691
1965	9.662716409196285
1966	10.28428082744448
1967	9.306142123301585
1968	8.33080893013733
1969	8.145992412565283
1970	8.313112892605211
1971	6.291487317244242
1972	5.674730402823095
1973	6.539409334003249
1974	3.7010754647133797
1975	2.8950788938617364
1976	4.746081768190182
1977	7.040751965477419
1978	5.557663161009456
1979	6.109219480813095
1980	5.494283791051261
1981	5.130863152804642
1982	5.075299866127585
1983	5.603849031169409
1984	3.3962551345500516
1985	5.384478600370486
1986	5.182931963301853
1987	4.990049638959214
1988	5.428300965312657
1989	5.540143717941364
1990	5.908316486608918
1991	6.662611968632932
1992	7.586676910371108
1993	9.017269035749743
1994	9.001543646282313
1995	10.864634213862976
1996	9.706507649523465
1997	10.520370557350565
1998	11.757331228718648
1999	11.758642385731306
2000	12.3442012279919
2001	13.386559208064888
2002	12.409968932201945
2003	11.431148695941264
2004	11.146508946135343
2005	14.392841897928252
2006	16.353463565288777
2007	16.995334846490458
2008	17.658858482075683
2009	16.9401329056133
2010	16.024112685691616
2011	19.922074955493866
2012	20.161588864062487
2013	19.53787410987982
2014	18.989659995010697
2015	17.33667378654855
2016	13.92120448144592
2017	12.819746890600348
2018	12.674787944339148
2019	13.094757335303905
2020	10.442788061603748
2021	10.662778900413372
2022	12.882226434898525
2023	13.15716383412045