Year	% of GDP
1970	63.98839760722539
1971	64.17949333956993
1972	63.76430141034929
1973	63.46855117013117
1974	64.10991369047284
1975	64.21109396690208
1976	65.57834541988069
1977	64.91425554712342
1978	63.749111943927176
1979	64.30461145109955
1980	65.51613500020697
1981	65.96705618778934
1982	65.63730741399077
1983	64.98260225734919
1984	63.562452512490665
1985	63.279008406734135
1986	62.49255585131843
1987	62.487965869252704
1988	61.7060500683002
1989	61.969444721055346
1990	61.39391263824299
1991	61.311049767368395
1992	61.981211585106585
1993	61.885392257976605
1994	61.67628481995933
1995	60.98856244626434
1996	60.466718315300604
1997	60.20898649637567
1998	59.67269372096411
1999	59.60521920422747
2000	59.617412028383065
2001	59.2702066925062
2002	58.68265310478793
2003	57.925800171015595
2004	58.24592145788464
2005	58.08496619964048
2006	57.76884968764414
2007	57.63026724274991
2008	57.457813636449664
2009	56.928449121547
2010	58.08891320945382
2011	58.47966135313975
2012	59.52192989261995
2013	58.95577151243734
2014	59.33626313179832
2015	58.45651391532448
2016	58.17061789989412
2017	58.33175626154846
2018	58.10265155636998
2019	57.368730796065556
2020	56.07680002859671
2021	56.21685524711811
2022	56.93880688692692
2023	55.61749216253765