Year	% of GDP
1969	21.42934929692519
1970	22.178492825614164
1971	21.741127061995744
1972	23.21265382590295
1973	24.41341640617648
1974	21.538118209265125
1975	31.77667277914626
1976	36.185931688294524
1977	37.293457696563515
1978	35.87582417511979
1979	25.79714267138303
1980	25.560032831021022
1981	29.23382718653924
1982	28.940510119009655
1983	31.559078339859038
1984	30.249376119191734
1985	27.048884602815697
1986	26.40699065965474
1987	22.558047652613272
1988	22.035031080281737
1989	23.855815439550252
1990	18.425080491162372
1991	22.834653612382276
1992	23.44716617707823
1993	24.28877616141815
1994	24.210898663079732
1995	23.342132452301733
1996	25.219201386442297
1997	24.600460661845457
1998	23.774531629982526
1999	22.044287631301806
2000	20.61741004014815
2001	23.22615625121591
2002	23.44050774334053
2003	23.86916402526049
2004	23.674200273282672
2005	23.453511928970812
2006	23.68029783762813
2007	24.12837997547646
2008	26.468314317256556
2009	26.398075800047355
2010	25.278014876105846
2011	25.02436174734319
2012	24.10812751697761
2013	23.653856169377242
2014	24.29938118093006
2015	23.607180628301293
2016	21.915205490024743
2017	21.94613243228902
2018	22.126353744818253
2019	22.755914585572498
2020	20.108454784030407
2021	20.44747046191868
2022	19.303260562684
2023	22.70283697378071