Year	% of GDP
1977	13.642353110357014
1978	11.196574024512993
1979	5.8762443524409775
1980	2.379814678069008
1981	3.3568127465460282
1982	2.9298361722996162
1983	12.23529014244126
1984	13.80847255872107
1985	18.049213032437322
1986	19.68386690141885
1987	23.06434090072203
1988	20.009784464069117
1989	17.595413109642855
1990	15.478670321376747
1991	12.730345112367639
1992	13.331201314653566
1993	19.285946499775964
1994	21.545478996183544