Year	% of GDP
1961	0
1962	0
1963	0
1964	0
1965	0
1966	70.84207081807492
1967	68.0218267414356
1968	65.2098171335862
1969	70.02593769030706
1970	69.55450690776983
1971	69.37935504255597
1972	81.5961404708186
1973	94.93363071994885
1974	100.18990345608185
1975	98.7629518949525
1976	113.79059179707116
1977	115.99849639109341
1978	112.51579895926871
1979	112.94852436101208
1980	107.05488304223766
1981	101.89398615484764
1982	110.90056335576939
1983	105.17384202745184
1984	103.70621703098521
1985	93.53607523068659
1986	93.07433555947316
1987	89.26300196881814
1988	85.06163345499796
1989	88.62520279760629
1990	95.19424325982502
1991	83.96475325123701
1992	87.73750137362596
1993	93.28584787063633
1994	57.33640159367961
1995	83.59064974711907
1996	92.06374137150904
1997	96.96954176565798
1998	92.71036922426826
1999	92.7378197987333
2000	96.61034245163881
2001	97.11867515116307
2002	97.69451266563797
2003	95.59315042349601
2004	93.42646631260527
2005	85.82326545693844
2006	72.05963776966357
2007	76.87387114649599
2008	77.89458249572053
2009	81.08410373023257
2010	69.69096577330006
2011	59.46614434570143
2012	65.09858975524642
2013	63.74418330345841
2014	75.03525032995512
2015	78.49501999294777
2016	74.02533870987772
2017	71.90482274742416
2018	69.52451567220828
2019	68.16935396172482
2020	65.30463639751896
2021	67.9788415594443
2022	71.40683742738038
2023	71.48778628961921