Year	% of GDP
1970	58.51450873581855
1971	58.559119491316416
1972	58.28664070586748
1973	57.330486177285735
1974	56.6504482570777
1975	57.89122122607612
1976	57.48945446150635
1977	57.603172317417894
1978	57.352924700214835
1979	57.215112439467006
1980	57.411312607867494
1981	57.02858092018421
1982	58.17455102843609
1983	59.011605824035385
1984	58.5509059438019
1985	58.97807886816604
1986	59.21010704209372
1987	59.07252261226363
1988	58.78069012046934
1989	58.60118213167013
1990	58.78918525582798
1991	58.94266238807842
1992	59.164890717976384
1993	59.60129411364829
1994	59.57053678895336
1995	58.977255754058774
1996	59.15698157697859
1997	59.32721169972028
1998	59.68383172433298
1999	60.18381353478828
2000	60.0880893709673
2001	60.606328117391485
2002	60.5321203765193
2003	60.15278807112333
2004	59.39551145403945
2005	59.018208842178886
2006	58.26819122032718
2007	57.673426551507866
2008	57.31405275238968
2009	58.247307702053085
2010	57.145481545919274
2011	56.581888249587244
2012	56.550539949372
2013	56.47147286383976
2014	56.51871854536187
2015	56.68483142181052
2016	56.997842189058524
2017	56.66049554039232
2018	56.16721563267095
2019	56.263570105127314
2020	55.35244961713977
2021	54.90796730120672
2022	55.293849994770625