Year	% of GDP
1980	16.77567901127125
1981	17.313464590157903
1982	16.16926560885652
1983	14.072662379691018
1984	13.494174082697985
1985	13.213735149813798
1986	14.245349346339411
1987	16.05387439332512
1988	17.407010220559798
1989	18.419993662647762