Year	% of GNI
1971	21.9167472696071
1972	18.5933345362498
1973	15.4092275397786
1974	16.0336921041876
1975	25.4587605999783
1976	29.3625214219801
1977	24.6387025836372
1978	26.5657536160582
1979	28.8657777838359
1980	28.8602960810833
1981	32.0817721653315
1982	29.1884425386575
1983	26.5992330525448
1984	26.552908293789
1985	23.1693692913705
1986	24.2838763314095
1987	27.0577143035272
1988	29.9959915222021
1989	27.3151376983283
1990	28.6101801136233
1991	29.2513312992456
1992	27.3000632813071
1993	25.665724819688
1994	25.4293688859057
1995	28.5228817827349
1996	23.9469382764868
1997	22.2902115641504
1998	20.6044359380925
1999	19.9579845081372
2000	11.034584972811
2001	11.4952756068775
2002	16.3242413175515
2003	18.2420634823523
2004	16.1063790916703
2005	15.4590676655543
2006	12.8567648733308
2007	15.0480541195697
2008	19.8373306015084
2009	16.1969856379917
2010	19.3019692920399
2011	18.7070278180018
2012	18.6765496749536
2013	21.7621450195025
2014	26.1525273158603
2015	29.0750502497781
2016	27.4199976668065
2017	31.9977793244887
2018	32.2841399618161
2019	31.9313990493431
2020	26.9887570387655
2021	31.2164461516592