Year	% of GNI
1970	15.9843099417785
1971	14.73331698843
1972	13.2006814846068
1973	11.177841066457
1974	8.8100565359279
1975	9.70143184412608
1976	10.1068766910794
1977	11.8626217538618
1978	14.6497377811887
1979	14.3655791267349
1980	16.4763722749129
1981	16.3519604893665
1982	15.2379827618048
1983	14.6048973276271
1984	15.2551372311416
1985	15.4923147900389
1986	17.8101599452192
1987	18.1438397501958
1988	18.4807246834161
1989	17.9996477283539
1990	18.6081699887201
1993	19.4490062902089
1994	19.1158603184376
1995	19.4105730954392
1996	17.9223115793849
1997	17.0257205289082
1998	16.8275904194753
1999	15.8048556333033
2000	15.1819992744576
2001	14.4438030523124
2002	13.1124425556768
2003	12.9181989162176
2004	12.6091614872697
2005	11.6307922308232
2006	12.1045565213183
2007	11.6488584928392
2008	12.2708024009045
2009	12.3673673012903
2010	10.8685366359048
2011	10.5590713823678
2012	14.4396484161601
2013	15.6387875430543
2014	16.041650242245
2015	17.5446008244011
2016	15.9810503689834
2017	16.4601322028134
2018	20.3500733397964
2019	19.9392431123635
2020	20.0875293100174
2021	20.2333968043454