Year	% of GNI
1980	-2.03279011686331
1981	0.319159498171697
1982	1.84646268527153
1983	4.30623629327417
1984	6.00118394882858
1985	4.27014911854659
1986	-1.22818389067597
1987	0.154253606489212
1988	5.60932353962747
1989	2.98512102981312
1990	3.07114873980804
1991	5.87775642239452
1992	-8.58340374784707
1993	-5.88136481157597
1994	-14.9330918869932
1995	-13.8193168835335
1996	-6.00625259445945
1997	-9.20788657154468
1998	-4.27273266378573
1999	-10.501994403538
2000	-5.75798988924243
2001	-7.89614670566896
2002	-7.06686783938301
2003	-9.42089850889364
2004	-7.83364547005541
2005	-10.8333074135841
2006	-8.27252262220169
2007	1.79297351150405
2008	-2.38160461501804
2009	-4.2340387348063
2010	-1.62631769826808
2011	-7.9801228775027
2012	-20.0872940014875
2013	-9.01334983020189
2014	-8.96047564143063
2015	-16.0193294007106
2016	-23.1078958768901
2017	-15.80846889459