Year	% of GDP
1966	24.8190066456604
1967	26.4981770548799
1968	27.70283718804
1969	30.9441241715052
1970	33.2656385658517
1971	34.747340692468
1972	36.9017862493152
1973	37.6003680542186
1974	35.4604081081738
1975	39.803290516707
1976	41.2957352111094
1977	42.6004514827606
1978	41.7537410355459
1979	43.7126448447615
1980	44.2618317710936
1981	47.71144472661
1982	52.6292095614183
1983	53.2933124554041
1984	53.5542383811402
1985	55.7954892577873
1986	65.7744101277821
1987	64.9697127806854
1989	100.697894581654
1990	63.2487747630476
1991	63.3534612958328
1992	68.584589086623
1993	76.6439736207103
1994	62.7118877859958
1995	59.6765076350034
1996	61.699761033488
1997	65.8162437991086
1998	68.3566064538986
1999	71.7187611789567
2000	70.2285016578182
2001	74.0723516959515
2002	84.2040014774655
2003	87.4251048618358
2004	80.6916112876739
2005	77.7990041748041
2006	79.2702656260447
2007	79.6744395265449
2008	78.0513729383941
2009	94.693604866086
2010	95.8568519218889
2011	97.7539373481719
2012	104.767010812083
2013	110.821339037562
2014	114.709233373542
2015	137.221724432763
2016	152.066756202449
2017	153.416859151387
2018	160.24201132806