Year	% of GNI
1970	4.27382842070073
1971	4.44105263346526
1972	4.64126750610574
1973	5.30632021391198
1974	4.95239561671254
1975	5.43238898799572
1976	6.30833142187221
1977	6.15180322921382
1978	7.40830398874296
1979	7.58196526004889
1980	7.16939689098775
1981	7.77544323464724
1982	7.71997445815303
1983	7.2453849810623
1984	5.98109215873341
1985	6.24863674701561
1986	7.12333011586351
1987	10.7712031214006
1988	8.73171774460688
1989	8.60233594926649
1990	7.67679657176192
1991	7.5644991746705
1992	7.3946484429044
1993	7.36378542377511
1994	10.651470763271
1995	7.76846467434226
1996	7.63905728526998
1997	6.94391199273561
1998	8.6553112645238
1999	8.59723038027008
2000	9.28979752180616
2001	10.8466789835827
2002	9.28993611998081
2003	9.59304149506096
2004	9.06185066398953
2005	9.42066667979745
2006	10.3496559935089
2007	9.59327924092076
2008	9.2052456082147
2009	13.7350939829779
2010	13.8125819101808
2011	12.6227425778759
2012	13.251501544546
2013	10.0965730248562
2014	10.8098853742315
2015	8.74514244598105
2016	7.33469591849609
2017	6.39129900443684
2018	5.89194976408211
2019	5.76923713716251
2020	5.207197028452
2021	4.670534790625