Year	% of GDP
1977	-3.7245397216422385
1978	-3.7646796802855333
1979	-2.276815872363788
1980	-5.401425529992408
1981	-0.6016620891016059
1982	-5.698515845178043
1983	-4.449795082704625
1984	-5.24384586849353
1985	-5.621300242593701
1986	-7.709200341537311
1987	-6.1139013050671025
1988	-2.736056786343202
1989	-2.7088700983338003
1990	-6.186664463975183
1991	-4.484683468181645
1992	-5.882431646089665
1993	-1.0126952810456356
1994	-2.8990046063481616