Year	% of GDP
1960	20.57616666313511
1961	20.594233567514284
1962	21.17303607555269
1963	21.3050476594269
1964	21.413898795772727
1965	24.889444789902715
1966	25.5390271429749
1967	25.799367625949706
1968	26.716805856157613
1969	26.82592875942679
1970	27.703895805301137
1971	28.742829500112578
1972	29.686799167606118
1973	29.276128558662503
1974	25.396141460650924
1975	27.562597058285206
1976	29.834958437224085
1977	30.13856509565235
1978	32.50121571986325
1979	32.42142612431406
1980	31.758349151691785
1981	33.94761238779428
1982	36.43670820546747
1983	37.92099516877394
1984	37.445011194773514
1985	37.44368877703397
1986	42.605262962111084
1987	41.8891211348839
1988	40.25269330766271
1989	39.70317801190883
1990	37.480669847003114
1991	35.514124314288395
1992	35.9880005417804
1993	34.97511483479708
1994	36.74649213552873
1995	37.62087811387788
1996	38.51686181436335
1997	40.587567017501236
1998	40.13922272903123
1999	41.960377428207494
2000	39.734786843261325
2001	42.40201979814653
2002	44.556923204310216
2003	45.43087443590846
2004	45.02760674332125
2005	45.62808816279753
2006	47.17778556615089
2007	49.05750664697507
2008	48.92804958075959
2009	54.102549126047016
2010	52.743321793988805
2011	51.866525994926114
2012	52.36873751022827
2013	53.81809444235606
2014	55.91893844951025
2015	58.792402597975276
2016	60.16627909483562
2017	58.3684319584093
2018	57.454761313146484
2019	59.13878838884716
2020	69.30663592012493
2021	67.11217020551042