Year	% of GNI
1974	17.104405728446203
1975	17.928476741073997
1976	19.511339059890602
1977	17.316094294138303
1978	16.2848239288874
1979	19.171528578453902
1980	14.81882087024047
1981	19.204119810790566
1982	18.48639747001458
1983	15.671891766656492
1984	16.513072585672376
1985	19.944211829689635
1986	22.822793552972325
1987	10.280947766454315
1994	-5.565863839319626
1995	-6.279625725875519
1996	-1.1774760039650722
1997	-2.0092585756437877
1998	1.4138193032634376
1999	5.406999783417927
2000	9.246373014435727
2001	8.048999632814478
2002	6.90078613970557
2003	7.080583990704872
2004	9.644845188951262
2005	11.229280177599339
2006	13.223896003164134
2007	13.605636672404351
2008	13.918434372683155
2009	7.675481439576874
2010	11.080614483759673
2011	14.071444330062617
2012	13.004647914683604
2013	11.167150440241143
2014	11.241808714653628
2015	11.548560865033057
2016	9.998430013625034
2017	10.86686844476933
2018	13.19930546433492
2019	11.274228568293912
2020	10.575080688246048
2021	12.728961749730177