Year	% of GDP
1960	60.4810996563574
1961	56.7762630312751
1962	56.4220183486239
1963	59.3543653705062
1964	47.7354421279655
1965	52.7150701647346
1966	58.8172043010753
1967	58.9559877175026
1968	62.9955947136564
1969	63.0699774266366
1970	63.4035522511359
1971	58.9262187088274
1972	61.2288786482335
1973	65.2197802197802
1974	66.9772481040087
1975	75.0235982631678
1976	69.3137254901961
1977	64.6291208791209
1978	64.3062320469589
1979	64.0254482359746
1980	63.6454084170729
1981	57.1609060554102
1982	51.3407193320488
1983	49.07446409704
1984	54.7967702235428
1985	54.0901845853257
1986	47.9595079213764
1987	53.2624086334239
1988	55.8652133318244
1989	53.2974808189572
1990	57.202841729685
1991	52.5788941174174
1992	65.6620580127396
1993	48.3522733798036
1994	91.3779569115237
1995	78.4568986716273
1996	54.7024229728444
1997	54.9419139631974
1998	70.8751772901036
1999	71.3159730281056
2000	60.93863549639
2001	67.1184036928501
2002	41.9008377881176
2003	50.8424494444496
2004	51.4662417063174
2005	57.4479843783725
2006	54.3599683102017
2007	56.4441652527095
2008	61.9657689679199
2009	51.6830724947176
2010	57.6475200499248
2011	48.787859784501
2012	67.8815961229165
2013	78.2691065522793
2014	73.3266118606604
2015	64.9112746043301
2016	77.9077147874236
2017	65.3298707550812