Year	% of GDP
1970	57.15013452135918
1971	57.26550670782126
1972	57.298267975996744
1973	56.75230268204538
1974	57.03100805794141
1975	58.12524137794838
1976	57.78325518643531
1977	57.85573785309669
1978	57.34206331392433
1979	57.627701888118835
1980	58.179596982390215
1981	58.660773448365575
1982	58.72660818163246
1983	58.66558877810921
1984	58.27691886912868
1985	58.16155030840125
1986	57.87230475873096
1987	58.28732366341174
1988	57.82134031047313
1989	57.00316724033831
1990	57.29388101410912
1991	57.41180876923635
1992	57.460495076123394
1993	58.067994692526234
1994	58.05810038978705
1995	57.083342996084774
1996	57.42749800647623
1997	57.74024219508574
1998	57.86920039029587
1999	57.97367300799002
2000	57.65701757960967
2001	57.48563826765879
2002	57.2700710078996
2003	57.284123120637176
2004	56.993514559144664
2005	56.89606977283628
2006	56.11030288536365
2007	55.59113117723684
2008	55.5439440233346
2009	56.82396819946327
2010	56.34601146784368
2011	55.9123276295155
2012	56.18540442210773
2013	56.26311917677166
2014	55.941429728570036
2015	55.64611772480757
2016	55.57848805716308
2017	55.14042898460156
2018	54.74630342073957
2019	54.53536725664054
2020	52.87669169801896
2021	52.09110293474487
2022	52.87825310164086
2023	53.47483627118804