Year	% of GNI
1960	6.277695031262535
1961	9.363463422832963
1962	8.297028066145016
1963	6.514908560189991
1964	4.911094227539675
1965	6.966992510423826
1966	5.746425064269079
1967	5.177143655808713
1968	3.8105674944419037
1969	4.294862768632134
1970	2.995728234742595
1971	3.251821107153315
1972	3.356916638493263
1973	2.0302333291159833
1974	1.2849881032649992
1975	1.1453134632983264
1976	0.7260319092256042
1977	0.6186781737173361
1978	0.3150436755505366
1979	0.20029815307476487
1980	0.21404791775452703
1981	0.4592593840201679
1982	0.043511931383784626
1983	0.008797251166951557
1984	-0.03836414793684403
1985	-0.008902349652298414
1986	-0.01536848991437264
1987	0.007293538737326679
1988	0.004685791934971346
1989	0.020986788154505696
1990	0.01846814709270483
1991	0.016475392746776365
1992	-0.0008731084550028898
1993	-0.008953404646172582
1994	-0.024700970390393266
1995	0.010097407649509123
1996	-0.024489039395302434
1997	-0.028172121463358523
1998	-0.013312350961864559
1999	-0.011198581975193876