Year	% of GDP
1960	19.794882424669527
1961	19.844358181551968
1962	19.506256584834464
1963	19.66331033078002
1964	19.252641257504262
1965	19.31505895227573
1966	19.112128179769385
1967	19.098894558345556
1968	19.411926853746643
1969	19.515520251381513
1970	19.95036450988929
1971	20.296479036511887
1972	19.592219681553864
1973	22.164762880418916
1974	28.926661661102678
1975	25.82550421014562
1976	27.47210906665426
1977	26.567973387344956
1978	25.20313586802295
1979	29.14712287230507
1980	34.50442974853983
1981	34.153457387478475
1982	33.39870345646437
1983	31.873753840883804
1984	33.48754377491608
1985	31.783344137596625
1986	26.209017410837287
1987	26.97761775295129
1988	27.726466104169585
1989	29.531051050241988
1990	30.957883703576496
1991	30.433459363372382
1992	30.517537154603797
1993	29.798164759469024
1994	30.914929481860263
1995	32.63060665672617
1996	34.84228377112856
1997	37.68868924609497
1998	37.18162474269611
1999	35.94908701221581
2000	40.196732760738534
2001	39.63856762514766
2002	41.82961569228185
2003	45.10187070399912
2004	50.155191553237955
2005	53.997203316145104
2006	59.005053170018726
2007	60.59938182952251
2008	60.83330193448443
2009	48.07021517376564
2010	53.993225686300114
2011	55.54061215813985
2012	53.7235305760911
2013	54.52133751634727
2014	53.3947100948478
2015	48.039680316653154
2016	44.5465780255217
2017	46.92469748952149
2018	47.490144179963906
2019	45.257322116211796
2020	43.90151119398958
2021	48.54204592742337
2022	52.99345968677105
2023	49.06933367316607