Year	% of GDP
1967	17.392163739532407
1968	17.08132587475383
1969	17.340845621152205
1970	15.277317210104064
1971	16.005825699665927
1972	17.08612916836789
1973	16.88687404636548
1974	13.532954567919106
1975	15.521872104330278
1976	13.36337963174275
1977	15.588584071382863
1978	15.917835926386498
1979	15.474526337205555
1985	12.842849315081528
1986	16.63634227068033
1987	20.151624329517063
1988	18.500802016880808
1989	21.33886862814792
1990	19.09127106432249
1991	17.114531947104396
1992	20.818332921948592
1993	15.464445215943694
1994	20.674752779082777
1995	21.172084501046147
1996	19.39174980003224
1997	20.66446267586219
1998	19.804316384582553
1999	17.893213761156368
2000	17.17565755808503
2001	20.489516461158246
2002	15.745765582916086
2003	20.811835974079592
2004	21.62901962393172
2005	20.88189177169173
2006	21.192448550197806
2007	23.874137062332334
2008	24.117942570898858
2009	21.99955495593421
2010	24.025745050188704
2011	19.723448785901994
2012	17.183062672770436
2013	19.105963403745246
2014	20.16095774964813
2015	20.760897764365897
2016	23.962648799945622
2017	21.58921477370224
2018	20.458302602059558
2019	22.53168263828722
2020	16.465768092945726
2021	21.786332791509427
2022	18.861347613556827
2023	18.200861899828425