Year	% of GDP
1965	55.407209612817084
1966	58.66510538641686
1967	68.92201834862385
1968	64.35331230283911
1969	65.4196157735086
1970	64.30868167202573
1971	52.31582373106265
1972	52.06284153005465
1973	50.24000997444049
1974	28.882770230337535
1975	45.54057798851225
1976	54.62145480115635
1977	71.42398313074857
1978	69.3290809746031
1979	50.84651892881426
1980	55.94884366493105
1981	68.98135878549748
1982	97.85909076699744
1983	90.22280008970583
1984	84.52814872478857
1985	89.06982390533865
1986	101.82613245200444
1987	84.58287674219473
1988	95.37535500892668
1989	88.96526231739875
1990	113.13310220078382
1991	211.0901690552166
1992	116.24302383518366
1993	96.52019842827549
1994	91.47019071017036
1995	89.61042162215458
1996	86.90118887274501
1997	86.73791912411613
1998	107.23581863024094
1999	93.50033261720667
2000	73.6739756099669
2001	84.23364485981308
2002	91.99309749784297
2003	82.37215431198834
2004	75.46341491262623
2005	64.2901344455182
2006	58.62162574865539
2007	64.902426597423
2008	59.164357215331734
2009	69.94379627625737
2010	63.680987634845586
2011	52.68115921286428
2012	51.54773778526891
2013	55.8833605539528
2014	63.02610130909299
2015	91.16912449856717
2016	100.89302232222204
2017	95.44741537515688
2018	88.12446871412097
2019	89.9420913685382