Year	% of GDP
1965	67.69025367156209
1966	65.69086651053864
1967	59.518348623853214
1968	61.72450052576236
1969	63.49848331648129
1970	59.8168176946312
1971	66.34824622581026
1972	68.59972677595628
1973	71.9344180537373
1974	84.95935182164574
1975	80.47031888527907
1976	77.93316925801494
1977	72.0262638652713
1978	70.53912717210328
1979	77.97012128922253
1980	78.34904719418559
1981	69.49812420916362
1982	54.504772934493595
1983	59.12937319790491
1984	60.1129750335505
1985	53.6749194566151
1986	46.18658275406142
1987	52.54013496669886
1988	47.564607974166975
1989	52.401685522639674
1990	44.938948974977386
1991	16.902039008947504
1992	40.470266189474536
1993	47.771185213028915
1994	50.85365924879374
1995	52.35460136309297
1996	52.284947662025004
1997	52.8528137117534
1998	43.86264465945741
1999	45.933890966989104
2000	56.472174446643564
2001	51.308411214953274
2002	44.6160483175151
2003	52.09151059773467
2004	56.91711338322858
2005	63.97606089890308
2006	65.54573372469842
2007	63.415038397082924
2008	66.7595495181702
2009	59.433634354444166
2010	66.6735112715591
2011	73.21767497453132
2012	74.73182297968665
2013	70.8614455252644
2014	68.5060682413279
2015	53.76625799678458
2016	47.631574359491054
2017	51.19631564766891
2018	57.49549485542169
2019	52.331091789061404