Year	% of GDP
1987	14.428433966481045
1988	17.136611091549977
1989	15.136507863889367
1990	15.617785774291063
1991	15.842488909597568
1992	15.517136042027936
1993	18.41173911207265
1994	19.091118924733557
1995	19.913747402706726
1996	20.438779288283403
1997	20.745323659793435