Year	% of GDP
1971	0
1972	0
1973	0
1974	0
1975	0
1976	0
1977	0
1978	0
1979	0
1980	0
1981	0
1982	0
1983	0.06159152500615915
1984	0
1985	0
1986	0
1987	0
1988	0
1989	0.04009710684406119
1990	-0.258373747832002
1991	-0.3915288554516789
1995	0.04266652452255093
1996	0.027670202201273395
1997	0.029949542643409988
1999	-0.024074771132353363