Year	% of GDP
1980	62.59287796273646
1981	65.75644112204306
1982	65.84242549415734
1983	70.18369945920033
1987	77.1866987220607
1988	76.46870686472163
1989	77.5368343948027
1992	97.89025223196367
1993	105.15895219423741
1994	111.89776920266081
1995	114.81812041183579
1996	112.8004018040792
1997	112.33091518847439