Year	% of GNI
1960	3.49862561298543
1961	2.953889463669816
1962	3.660663124086082
1963	3.279797513143827
1964	2.4335567461364533
1965	2.895618133254004
1966	2.4141932547090033
1967	1.5215431415680043
1968	1.1636848488389597
1969	0.8996567745349087
1970	0.8804832692483099
1971	1.0489470039317808
1972	0.9527902092252455
1973	1.6086467210214699
1974	0.7064583739134335
1975	3.02772027840886
1976	4.209307446506708
1977	4.533257671484155
1978	5.315350562824999
1979	5.460059610046181
1980	3.6944841649578253
1981	2.9958335126929594
1982	3.0773195415767454
1983	4.3306112700090145
1984	4.433333602473838
1985	7.4408752169466466
1986	5.791397203168343
1987	3.0859542311186887
1988	2.4782126350551095
1989	2.3776490477092387
1990	2.2957046811241963
1991	2.532422525997625
1992	2.679174953046356
1993	1.63453849552588
1994	1.4076338656046667
1995	0.3269376166863106
1996	1.9873669595845085