Year	% of GDP
1980	24.274747004769107
1981	22.875116830828958
1982	21.5851514838176
1983	20.91022519168461
1984	19.625271147962327
1985	20.020064242390774
1986	19.45659688936143
1987	21.73478633391092
1988	22.577330610690804
1989	21.7854327525569
1990	19.096024286966905
1991	17.36698599852616
1992	14.790338645418327
1993	11.848444295751086
1994	12.593036529680363