Year	% of GDP
1960	14.81402399965837
1961	14.41063515509601
1962	13.174357712719221
1963	12.927548045270715
1964	13.094480955409512
1965	13.569391013059068
1966	13.59355757853814
1967	13.489307052320063
1968	13.556094714535794
1969	14.297029350515281
1970	15.981161195882192
1971	16.481682264323215
1972	16.623106072708914
1973	17.525279255689576
1974	20.63018226280998
1975	18.833200495175433
1976	19.335172332839345
1977	20.233567030739195
1978	20.242616517887875
1979	20.71595389367419
1980	20.98257963122828
1981	21.96986185868212
1982	21.398695197350122
1983	22.43632707774799
1984	23.835480814109726
1985	23.324345476838122
1986	20.383478435936343
1987	19.597351816566448
1988	20.3667255718941
1989	21.658153824861778
1990	20.975733380412436
1991	21.334884423905727
1992	21.330559345277514
1993	20.79257940722464
1994	21.660322731290897
1995	22.622926060086694
1996	23.055644727238462
1997	25.523195415760025
1998	26.126491978672917
1999	26.076535386534893
2000	28.59497424902863
2001	28.26589520218437
2002	27.531050257930794
2003	26.111968974639808
2004	26.46883632166073
2005	27.033051041817085
2006	27.935055090195554
2007	27.853257510199036
2008	28.119384856302513
2009	24.835547210267183
2010	26.788299840273766
2011	28.42133747641944
2012	29.203027186849507
2013	29.364737867049186
2014	29.666684498073042
2015	30.592622378131324
2016	30.247537183394513
2017	30.94863318710001
2018	31.713667210255466
2019	31.592055414366794
2020	27.32773557358773
2021	30.034994352784324
2022	34.686399716266045
2023	32.67942634939888