Year	% of GDP
1960	60.345655304848776
1961	59.044006069802734
1962	58.33095577746077
1963	57.306848961692246
1964	57.786885245901644
1965	56.76486341724692
1966	56.743178012018525
1967	55.428723121847625
1968	56.72825376062786
1969	56.968375136314066
1970	58.32673528635524
1971	59.14954610606784
1972	58.98864480526371
1973	56.322834986786816
1974	54.026953027770865
1975	57.954617081626225
1976	57.87385071123159
1977	57.710066977877005
1978	56.41768428558696
1979	55.169555388093436
1980	53.53619483895056
1981	56.6804095963983
1982	58.295810283459836
1983	59.465763521519676
1984	59.03903136406111
1985	58.15437946804586
1986	59.15355152787887
1987	60.75604171966421
1988	61.59322808264379
1989	60.87475078953404
1990	64.23724499964737
1991	64.6571489794825
1992	65.08120566614414
1993	63.81613633674568
1994	64.46554323183999
1995	64.70034952905756
1996	64.53972982777036
1997	65.30112864720324
1998	65.57529552595321
1999	66.0470513995
2000	65.6238481614363
2001	65.3133283719524
2002	62.68164611659264
2003	61.90302999560318
2004	63.670004694132146
2005	63.593129693053285
2006	63.56510342436598
2007	63.46799835465629
2008	63.037275982110216
2009	62.005043543952624
2010	62.36748947034552
2011	62.932776161581515
2012	64.3015270653663
2013	63.8663333377077
2014	63.69631013325914
2015	63.68112398743793
2016	63.28106897007613
2017	63.0089707732236
2018	63.96866221198525
2019	64.09286417972446
2020	62.51971234604026
2021	61.81931705521223
2022	63.506169835081174
2023	64.7295564285853