Year	% of GDP
1965	26.43524699599466
1966	27.166276346604217
1967	32.11009174311927
1968	31.230283911671926
1969	30.940343781597573
1970	38.61444022215726
1971	30.395138977792662
1972	29.193989071038253
1973	27.348669035596284
1974	14.786257927780172
1975	21.760825300807994
1976	26.81980363049197
1977	33.63611597175929
1978	34.650470182679456
1979	26.02853960725576
1980	30.85518587120047
1981	38.13306741867596
1982	53.39407315789879
1983	44.27757906254391
1984	42.566117927987676
1985	47.81377966306663
1986	52.746305414695236
1987	45.00098679193989
1988	53.407125223569686
1989	51.26909094991975
1990	56.75874283991559
1991	93.01233283316292
1992	38.330043107696845
1993	43.4643073326333
1994	41.395666994403804
1995	42.65519663786835
1996	44.53553361402467
1997	46.47267750659846
1998	58.28242585214697
1999	52.08131127517803
2000	41.52960597391597
2001	46.29813084112149
2002	49.5893011216566
2003	42.74139284512729
2004	37.42200300284871
2005	32.15290846515097
2006	28.569877330799642
2007	30.440200610179062
2008	28.137698827354
2009	33.49892773525882
2010	28.89195565289252
2011	24.251031939533853
2012	23.653070433792067
2013	25.145082714003607
2014	28.980478016963406
2015	41.54926462320714
2016	45.228668070907766
2017	43.295306506418314
2018	39.762458896656824
2019	40.609222407605635