Year	% of GDP
1972	0.5594735367446609
1973	0.07845472663822642
1974	-1.8555253402154046
1975	6.105400321976868
1976	1.0782155910501994
1977	-0.38231345079660173
1978	0.2844358577299938
1980	1.5792443659085966
1981	0.43463223339321994
1982	0.2614099107900232
1983	1.963821847291497
1984	0.31497872668298105
1985	-0.21547607410657954
1986	-0.8777231083152217
1987	4.473957002462828
1988	3.458719793965718
1989	0.967040092570862
1990	17.82604290688846
1991	9.708054860058166
1992	6.216375955773054
1993	6.335684663035777
1994	7.319902257504289