Year	% of GDP
1960	16.36986758334477
1961	17.039351846679537
1962	20.197579293873595
1963	22.95472758529777
1964	24.401058318248943
1965	24.349927413285812
1966	25.393814374432527
1967	27.191066968835685
1968	27.52120746236401
1969	28.678699793463835
1970	30.029445993953434
1971	29.765888475716196
1972	32.22857534299051
1973	29.24883941119737
1974	24.933358840034987
1975	29.746884808603347
1976	31.472120895705917
1977	33.48529569706424
1978	42.768417659519116
1979	50.019248853650836
1980	59.59123471943193
1981	58.229502087681965
1982	55.31736188514961
1983	51.19792528327187
1986	61.52620201747827
1987	60.48182204305611
1988	64.40871536301137
1989	63.46572788960344
1990	53.68216924262978
1991	47.610097938825376
1992	44.32265738851086
1993	39.08873596060144
1994	39.57528818556005
1995	36.449685092232066
1996	35.23724280432257
1997	37.221679915931375
1998	40.13115237166505
1999	36.29376992203894
2000	37.15509485220455
2001	40.87214626233347
2002	37.85634770207559
2003	39.196910752777924
2004	38.76462150026077
2005	41.530879281097235
2006	47.06752922021335
2007	47.39689844385112
2008	44.291262005309534
2009	53.25470452653316
2010	54.11468981781977
2011	47.48617951585959
2012	55.56631192046923
2013	51.99600325276096
2014	60.96142032058432
2015	76.76127206663695
2016	82.51016787736201