Year	% of GDP
1960	77.03402026523618
1961	72.38801970763635
1962	73.29430204591105
1963	73.43145520184233
1964	75.26996986141408
1965	75.16474517565561
1966	75.05951781216265
1967	74.95429899302866
1968	74.84907156838962
1969	74.74384779820437
1970	74.63861241217799
1971	74.53338078291814
1972	74.42814979996065
1973	74.32297326668116
1974	74.21774431029405
1975	74.11250329232043
1976	74.00728404463133
1977	73.90205180322465
1978	73.79683581389898
1979	73.69160287857675
1980	73.58637846287974
1981	73.48114816775484
1982	73.37592454503316
1983	73.27070501064958
1984	73.1654807279539
1985	73.06026173979984
1986	72.95502412605725
1987	72.8497938726026
1988	72.74459190384806
1989	72.63935591188252
1990	72.53412226835393
1991	72.42890330204516
1992	72.32367623441333
1993	72.21845005154485
1994	72.11323400404778
1995	72.00800572650546
1996	71.90278182802867
1997	71.79756097013048
1998	71.69233172165433
1999	71.5871040984192
2000	71.48186756740425
2001	71.37661130682295
2002	71.27143212686131
2003	71.84822998263893
2004	70.93757966292033
2005	69.01408278436486
2006	67.66228374644399
2007	67.15217979326502
2008	69.95054279587602
2009	64.44740784064172
2015	63.94474827838813
2016	62.20013604007131
2017	59.11215111911186
2018	60.250967851038936
2019	62.69719723688587
2020	62.90480775781858
2021	61.20143272013559
2022	67.78224388897236
2023	69.34035462754812