Year	% of GDP
1960	76.29666760725682
1961	74.05016123387426
1962	75.28369815668204
1963	74.85731704219269
1964	78.79234303368733
1965	77.07373271889402
1966	70.39826397753383
1967	71.48183786384412
1968	70.36093888396812
1969	71.54225848695476
1970	72.64651227118677
1971	75.03119151590766
1972	80.95336668751303
1973	78.0801209372638
1974	85.90681733975546
1975	84.57929489998827
1976	90.63196078593535
1977	86.38933034523679
1978	81.733288335921
1979	81.60618734958058
1980	84.06905155978295
1981	88.32086340424729
1982	89.73087079712735
1983	85.07264363849677
1984	82.9085886180176
1985	85.52889473359791
1986	80.09828058026997
1987	79.01705358841664
1988	80.53277463720929
1989	82.17376306328711
1990	77.9290099294138
1991	77.44676893255873
1992	75.72125476713958
1993	69.41173870116857
1994	76.05583055714152
1995	79.84062159309188
1996	81.67041951774043
1997	82.11157401336251
1998	85.008344438494
1999	84.89518188263368
2000	88.46957676400001
2001	87.81905926137856
2002	88.98513457512936
2003	88.67624102403995
2004	87.76284366613615
2005	92.99890328956012
2006	92.06016299137104
2007	95.21584585922821
2008	105.34024967817741
2009	96.86975801568923
2010	98.04325366223073
2011	101.64826042031044
2012	101.73948312414487
2013	100.84791801666928
2014	99.758026283106
2015	94.92226499493576
2016	91.54019790173058
2017	91.67720742470415
2018	89.53869057161644
2019	89.76935064984295