Year	% of GDP
1975	21.874789679457013
1976	22.57982573872416
1977	23.0748789520437
1978	23.848745481341048
1979	23.819670585342227
1980	22.676699865966146
1981	22.559032890992942
1982	21.607548796519
1983	21.022871113363294
1984	22.332721634223265
1985	21.84923402886138
1986	21.372996127350234
1987	21.55375958105272
1988	22.44093557334941
1989	22.059413434269192
1990	21.372912142580375
1991	20.727278730907972
1992	19.652971423204843
1993	19.383389483223276
1994	20.142922420015676
1995	20.926006821150416
1996	22.51485807885698
1997	23.1879050512738
1998	23.59931315389682
1999	22.983840528629344
2000	23.10216897508766
2001	22.35665090923667
2002	21.60731734682861
2003	21.19661361455549
2004	21.814926042018488
2005	22.085007242859735
2006	22.890953241599778
2007	22.38680630119327
2008	20.8020041408723
2009	19.10833678800009
2010	20.101267260218926
2011	20.69591984382696
2012	21.24540627097519
2013	21.31243089812989
2014	22.01638888829966
2015	22.448711846348115
2016	22.082773817877335
2017	22.678137643530306
2018	22.88191736301582
2019	23.125821768145073
2020	22.42106028951832
2021	23.445179333480667
2022	23.02823311256679