Year	% of GNI
1977	7.62224182016364
1978	11.7659521544874
1979	8.97307749899045
1980	9.90309862874982
1981	6.23359060716854
1982	10.5017331106684
1983	15.8701713692384
1984	12.526626730326
1985	12.0973823460751
1986	7.7799937646314
1987	5.29383217196043
1988	9.08622284300488
1989	2.85753091359016
1990	8.18938320513139
1991	6.59670806385588
1992	10.2042665422947
1993	14.3271786005842
1994	15.0212714125735
1995	-6.42120422750461
1996	-5.60988765943659
1997	-5.40921923576359
1998	-5.78338729783007
1999	-6.0427538552512
2000	-6.28552779655059
2001	-9.79408822299472
2002	-10.4244440536953
2003	-7.74759008287174
2004	-8.71566400170944
2005	-1.16127678737211
2006	0.729213171388707
2007	-4.74932821646291
2008	-3.31058016802791
2009	9.45327225209948
2010	7.28975520542742
2011	5.57672395243573
2012	8.48458049219245
2013	8.59187987963141
2014	1.64270722457527
2015	6.06613874790955
2016	-5.42405221377655