Year	% of GNI
1970	7.64658528059025
1971	8.05029447017442
1972	7.81861546307089
1973	9.9392078603218
1974	10.7999449776136
1975	14.9479614012558
1976	13.2503229643576
1977	11.4724097584168
1978	11.2046943168851
1979	9.73664808420607
1980	9.44169835862855
1981	9.35825808097137
1982	11.7684247108784
1983	13.2405636576996
1984	13.8463893132491
1985	18.3681952275957
1986	17.5079607800155
1987	15.9299292521633
1988	15.1027717839324
1989	15.3754949365148
1990	15.1390330889754
1991	14.6856853339701
1992	13.9482065143813
1993	13.7728419676529
1994	13.7576324361315
1995	13.1955212902503
1996	13.6319116926507
1997	13.1420411491285
1998	13.0037613645233
1999	13.8765179444514
2000	13.4263630743869
2001	13.5532160638772
2002	13.4041582843804
2003	13.5747122864137
2004	13.8647094901325
2005	13.891175999826
2006	14.1950146989966
2007	14.1235443434966
2008	13.8676578847048
2009	13.8163348800466
2010	13.5979664811121
2011	14.0754308458423
2012	13.6740823826827
2013	13.4553867072736
2014	13.2008607593396
2015	12.9829739004378
2016	15.5010311678984
2017	15.627544767087
2018	16.5373272393154
2019	16.9238757682565
2020	17.8174258257806
2021	18.158443331206