Year	% of GNI
1970	1.394187243921866
1971	1.678921031355542
1972	0.7046746514377451
1973	0.5958545443575639
1974	0.44118498663812133
1975	0.8904410224343206
1976	0.47020068212096416
1977	0.8084909270057274
1978	1.125391178496572
1979	1.6850483530318576
1980	3.076577413192805
1981	4.426821136940916
1982	5.987484628012825
1983	7.808140081760626
1984	7.374118850649633
1985	6.314624095391491
1986	4.519345382025968
1987	4.201585763986076
1988	6.728437202337682
1989	3.982396023236285
1990	3.0196267874870277
1991	3.7550209998141924
1992	4.841351172293855
1993	3.239821492716393
1994	3.2657719852500273
1995	3.5252700329458353
1996	3.1271344540702946
1997	4.096738826977249
1998	4.221983398761994
1999	3.3986350631105706
2000	9.270112991019746
2001	2.9337594797954085
2002	4.0144187530087425
2003	2.809999995385741
2004	2.7752838890430986
2005	3.125419733437366
2006	3.2613146036983913
2007	1.5729228328282996
2008	1.3268422404320075
2009	1.1375190093582208
2010	0.8607971630160706
2011	0.8278722642307158
2012	0.7039116165974181
2013	0.6736830520820464
2014	1.0246187144469825
2015	0.9560824549049015
2016	1.0827591956292137
2017	1.9496293295285265
2018	1.148467090616628
2019	1.2426839263158107
2020	3.080854532284331
2021	1.5122438781914598
2022	1.4394641281602587