Year	% of GDP
1975	3.343464424733864
1976	3.967496532474658
1977	3.4186903060516842
1978	3.1748299510146425
1979	2.431369415903416
1980	2.799219996101975
1981	3.195674580824708
1982	3.6860927054679826
1983	4.696771142601727
1984	4.159435192431512
1985	4.410585333007692
1986	4.204384110820437
1987	2.7665247264259256
1988	2.501396760586968
1989	1.7440937364267382
1990	2.7836121310399995
1991	2.9491865758103346
1992	3.655852857521032
1993	4.01288631276194
1994	2.8749703791838694