Year	% of GNI
1977	18.0410471225628
1978	21.9083690627308
1979	19.9489978667566
1980	18.3771534738227
1981	19.2388341579792
1982	18.3215877754591
1983	24.4759753239515
1984	24.0097264825951
1985	19.273621016531
1986	16.5821219956928
1987	20.9290019124655
1988	21.5539291890596
1989	20.6226607925632
1990	26.4130302557664
1991	28.8008775350778
1992	29.1635997002308
1993	25.3520001984367
1994	17.498358860111
1995	15.7118938672028
1996	12.2610913594871
1997	11.4743370497638
1998	12.7024234806036
1999	11.9537754470538
2000	11.3258979361507
2001	13.4538802760311
2002	13.1853331878944
2003	13.4849430570732
2004	15.5002192184334
2005	16.1335987459143
2006	17.2088611796331
2007	17.2844628928537
2008	17.1928145415978
2009	10.1871750592267
2010	11.8103829653045
2011	11.2482386103612
2012	8.14957000813871
2013	8.82414122573831
2014	6.84868296293129
2015	4.59293614791982
2016	3.81702805030501
2017	4.45141455443276
2018	8.56516223128227
2019	9.59926826352911
2020	5.36050327731125
2021	1.8242637812437