Year	% of GDP
1960	8.519938834720127
1961	8.654232440764448
1962	8.707800698669905
1963	8.801236956241594
1964	9.639108439962614
1965	8.711953096931564
1966	7.972084047755344
1967	8.022715568639356
1968	8.270184987056709
1969	9.61030709849981
1970	10.270033771264032
1971	14.87390023468139
1972	17.277494449049616
1973	20.631068926714967
1974	25.523171807763816
1975	23.104221998901593
1976	22.844503862632433
1977	19.562454451202747
1978	18.318933802803766
1979	16.40009385274715
1980	15.10695055932908
1981	14.13092965133231
1982	17.926634931078155
1983	17.132265854065565
1984	14.16662848421847
1985	22.9532781499561
1986	20.13659159178355
1987	19.22265640705524
1988	18.788911265995637
1989	20.410017165149405
1990	18.913396629357095
1991	21.24560990386868
1992	19.302433465419917
1993	19.459397383889048
1994	27.16616164845434
1995	23.925342880949945
1996	24.94470712705304
1997	27.391778378969533
1998	24.174562834586542
1999	17.296501590425738
2000	14.570699062607522
2001	13.545897868500589
2002	13.451684877729441
2003	15.459281358518288
2004	15.518103809998415
2005	17.56359353067019
2006	16.125005632071428
2007	18.25108478114361
2008	20.73196244598014
2009	19.990032263826716
2010	21.990434000013796
2011	22.123511804334257
2012	24.652992897320672
2013	23.709915006143273
2014	19.26224919316478
2015	19.40669971642433
2016	20.795547948402675
2017	22.078122163529862
2018	21.739104819001774
2019	19.757868016592216
2020	17.161517428281634
2021	15.519565654109144
2022	17.70800931737241
2023	22.550579497960594