Year	% of GDP
1965	3.65821094793057
1966	4.28571428571429
1967	5.5045871559633
1968	8.08622502628812
1969	7.45197168857432
1970	4.0436519536198
1971	2.38095255326043
1972	4.6448087431694
1973	10.0367807493298
1974	1.43981121006586
1975	4.07226830879644
1976	15.1053467718832
1977	19.2901039347838
1978	27.4253687592336
1979	21.9640931595688
1980	23.1946770909527
1981	38.3978917690775
1982	51.2193567992324
1983	52.8631818039928
1984	51.8680635726292
1985	51.4841998530219
1986	73.9427362125993
1987	75.6658134362912
1988	93.384952771166
1989	78.2483283190769
1991	184.753025265289
1992	106.666092737216
1993	83.6673420558665
1994	89.521683855895
1995	88.8180921863446
1996	75.8052037352211
1997	87.8042687231847
1998	106.943125710524
1999	92.447458393436
2000	70.4101987899741
2001	81.2747668442202
2002	81.8101915444349
2003	76.6769853508096
2004	65.0915322258378
2005	55.3215356249735
2006	59.9075497115711
2007	69.8164313556981
2008	66.2451100454316
2009	90.5404764092132
2010	75.2844642085184
2011	59.3890707477489
2012	51.3884286834338
2013	54.3009191753337
2014	61.1137643162241
2015	87.0470134857992
2016	95.7620562805922
2017	92.5426629895201
2018	79.9029041734932