Year	% of GDP
1975	3.006421571212062
1976	1.5266963129151028
1977	1.4722638235953867
1978	1.769607212934763
1979	1.6820022216504436
1980	1.621521781137451
1981	2.2453946867516272
1982	1.943814524391036
1983	1.617021040096579
1984	1.35829651416762
1985	1.0892545704981902
1986	0.9779873760726212
1987	1.1987047890904805
1988	1.4101326663148497
1989	0.6231337903659633
1990	2.272132636940011