Year	% of GNI
1977	4.722173875763531
1978	4.258621177728875
1979	3.0758875192278063
1980	9.239034661117932
1981	4.734205363555237
1982	3.6942022099991636
1983	3.216856731362916
1984	3.657410775519227
1985	4.056243707172573
1986	4.27144064371098
1987	5.103257429728
1988	8.35852713714183
1989	7.330168440972612
1990	3.8157894199055824
1991	3.517015405345851
1992	3.4867419590061606
1993	4.276260824982278
1994	2.2009425057424847
1995	1.2891457429411695
1996	2.145399948113725
1997	2.036388978379045
1998	1.8693605256749968
1999	1.258888165015785
2000	1.019005541421526
2001	2.3890156077257925
2002	6.343455501644507
2003	0.02112335864898434
2004	-0.017094076235468367
2005	0.509700527729116
2006	0.8544704519990999
2007	0.5286016798742127
2008	6.30755389301651
2009	0.4389686063659703
2010	1.5316181754223703
2011	1.9542513862008812
2012	2.7120612840481164
2013	3.4929825185148684