Year	% of GDP
1987	1.84098043736587
1988	2.1109857421274003
1989	2.0849104859335
1990	1.25635913653238
1991	1.22854731313889
1992	1.08347426748615
1993	1.19864522871209
1994	1.1925565578803201
1995	1.1157568897410401
1996	1.08559230216368
1997	1.17017056723522
1998	0.951292019208781
1999	0.974136501313688