Year	% of GNI
1980	14.7276637200717
1981	12.587905249339
1982	16.1102836526248
1983	21.3880218132626
1984	18.0289023695308
1985	17.57461956643
1986	13.4611148779879
1987	10.6556293170652
1988	14.3281445693975
1989	8.42058770150431
1990	13.1717650259652
1991	11.3621439821667
1992	15.0276826574856
1993	19.727373990262
1994	20.8122766422953
1995	0.0687874339337836
1996	0.852152058619771
1997	1.07066864557635
1998	1.43069983053044
1999	-0.574550723818932
2000	-1.18922822689105
2001	-5.1671923163342
2002	-6.05443720064314
2003	-3.74878590689608
2004	-5.02782117683261
2005	3.05888194264161
2006	4.41485328023178
2007	-0.983662546516937
2008	0.471712741481854
2009	13.0704773793576
2010	10.7464317409436
2011	9.06291033467481
2012	11.7066604482744
2013	12.5665814482122
2014	5.26609547333065
2015	9.43393912821456
2016	-2.09832195879857