Year	% of GDP
1980	7.671458303083104
1981	7.191001986559168
1982	8.699317517463113
1987	5.480455666260094
1988	4.8906807256939056
1989	4.226329226329226
1990	5.039061630572681
1991	5.157310585213723
1992	4.929092086300884
1993	6.711632941960197
1994	5.73148390473698
1995	5.208117427596993
1996	5.656844219736819
1997	6.259955661384351