Year	% of GDP
1965	39.65287049399199
1966	40.98360655737705
1967	47.591743119266056
1968	46.37223974763407
1969	46.30940343781597
1970	52.1874695508136
1971	42.93675227505806
1972	42.759562841530055
1973	40.726887351162645
1974	22.10595389734996
1975	32.81617342081521
1976	38.07849571581114
1977	48.108011055512776
1978	49.09363787726004
1979	37.19553458275197
1980	42.02816194217383
1981	52.35048090840044
1982	72.665522356149
1983	65.4368241416563
1984	63.50401759968399
1985	70.21553998951929
1986	79.71615684055648
1987	67.03864332423782
1988	79.6795534483398
1989	76.66633645532384
1990	95.50798914681941
1991	169.23445808787966
1992	93.87968259023972
1993	79.32865636754613
1994	75.31842853597948
1995	74.85179753262919
1996	71.79688411407238
1997	73.09893881629684
1998	88.78391197116296
1999	78.94478554369282
2000	63.00873788925093
2001	69.92897196261683
2002	74.86540120793788
2003	65.73959851968151
2004	57.277911935467294
2005	47.86336741094892
2006	42.463903357708816
2007	44.44577447929136
2008	41.534535762421825
2009	51.9779513513159
2010	46.022407657944285
2011	39.13309010614279
2012	38.71273036983208
2013	41.53189322235746
2014	46.735925204236544
2015	65.74103488572585
2016	70.93428976969896
2017	67.71657659822708
2018	62.81680821861494
2019	65.37554437549295