Year	% of GDP
1976	8.915014588661581
1977	9.827876674773979
1978	11.144827369633106
1979	5.830846199562385
1980	6.293419168838925
1981	10.302764505908957
1984	9.870721184522656
1985	14.186789647802877
1986	10.350958575528464
1987	8.902953853194774
1988	8.733689755573245
1991	8.050407684552638