Year	% of GDP
1980	16.897494781881754
1981	17.342396072496015
1982	16.236877101183417
1983	14.178088310545473
1984	13.650637120460877
1985	13.34225680829594
1986	14.381725392858472
1987	16.185750062284622
1988	17.685157267900337
1989	18.7481640265439