Year	% of GDP
1976	21.36550179616876
1977	20.9196983160974
1978	20.308493308111434
1979	20.175289798432225
1980	20.55851324646706
1981	19.737162728373864
1982	17.662889421295578
1983	17.178942425552744
1984	18.843837741971456
1985	20.85826658668038
1986	17.955467437220797
1987	21.320813386127817
1988	22.229085711356106
1989	25.0517801961697
1990	19.19993494030977
1991	18.279728293133243
1992	18.010687085439212
1993	18.575183709609647
1994	18.557393334574662
1995	17.515697576400918
1996	17.862771084825383
1997	17.7744032804533
1998	17.591696387959708
1999	17.104769088916477
2000	17.486805332860182
2001	16.83797850732273
2002	18.42065304481424
2003	18.735475063685676
2004	19.78989998950608
2005	19.58004586040756
2006	21.473290666637457
2007	21.7406616944594
2008	21.07674261730869
2009	18.754577530654448
2010	19.4687576325562
2011	19.676512728023383
2012	18.869038564296247
2013	17.962122267393465
2014	16.739277266754545
2015	16.71464991407092
2016	16.52850632717939
2017	16.653877482355984
2018	16.256619024633046
2019	16.300104740289655
2020	17.412194083340367
2021	18.71643739091488
2022	17.548358353659445
2023	16.919326564643473