Year	% of GDP
1976	3.4166464790952253
1977	4.572746636114409
1978	3.921977004984029
1979	3.685862739030048
1980	3.113904453064091
1981	3.9526935153898752
1984	4.297168777000736
1985	4.643297627101719
1986	3.6766301150740537
1987	2.629127455384764
1988	2.3982029600852863