Year	% of GDP
1970	23.62040611364837
1971	21.021669494474118
1972	17.753795161362266
1973	15.488232498626672
1974	19.091789659837914
1975	18.209374984573426
1976	21.373695525768145
1977	20.148315705913372
1978	17.495370410657276
1979	19.32907157180683
1980	17.88901339318022
1981	19.483193365837074
1982	20.94702268277079
1983	23.166191411514188
1984	22.08631166756546
1985	21.29507231020005
1986	19.244537161687685
1987	22.50151517925092
1988	22.09605214259904
1989	22.64359462025666
1990	25.493979525103395
1991	23.866968658977587
1992	22.17430636597585
1993	23.712255960388028
1994	23.87959303409899
1995	23.916275582524445
1996	25.01576475250585
1997	22.886371359468818
1998	24.04993323534939
1999	22.135159688099858
2000	22.7031974084651
2001	20.44285973778079
2002	16.712685628380587
2003	21.12073450565751
2004	21.029705228251828
2005	22.836686955678832
2006	22.47817138607356
2007	22.94866313153701
2008	20.036864612068957
2009	18.28427384184167
2010	20.992562240314964
2011	18.162155566802276
2012	17.60599714709944
2013	16.52387261723692
2014	16.6598172575528
2015	24.19964222961436
2016	22.68305346875259
2017	19.91250233528502
2018	19.31284422871124
2019	19.64594731894208
2020	19.940600751232786
2021	20.320229254452222
2022	25.036637078715025
2023	18.538563949844026