Year	% of GDP
1970	31.038140764506327
1971	31.031411392062136
1972	31.99834917982361
1973	32.24418828722879
1974	32.52408284362226
1975	27.158609625343605
1976	28.511781606419678
1977	29.701241339043815
1978	26.527748128776196
1979	29.344559864359898
1980	28.780830619743234
1981	26.92647654535517
1982	24.580130591708865
1983	23.04242391733546
1984	23.774990645625333
1985	24.449258359684507
1986	23.733761070252378
1987	24.05756483718221
1988	25.60419581720627
1989	26.47053046027874
1990	26.689308635830322
1991	26.897544599929095
1992	26.20273657656999
1993	25.246194915839933
1994	26.082121289325023
1995	26.763232286056045
1996	26.33767296399579
1997	26.21365746422178
1998	26.105660800560806
1999	26.11755139475198
2000	25.926970942080036
2001	25.160766294699904
2002	23.6426568399916
2003	24.408746461156326
2004	24.061026887504784
2005	23.82524563708602
2006	23.61032758584961
2007	24.584304902242945
2008	24.467460740570484
2009	22.77532093879262
2010	22.607847118507326
2011	24.140474472755923
2012	23.977106887164798
2013	23.72339000130283
2014	23.531542785421422
2015	23.805525692784105
2016	24.25632595695929
2017	24.838419298667727
2018	25.726435431980388
2019	25.34941264471744
2020	25.627310945571836
2021	27.66001066722153
2022	27.54897369432923
2023	25.313155848965064