Year	% of GNI
1970	6.80908376674505
1971	6.51205454270641
1972	6.17095602505748
1973	6.61985690006728
1974	5.53596408343548
1975	5.82986214409796
1976	7.94350789269284
1977	8.4746242683922
1978	8.99545785180669
1979	9.23700273815662
1980	9.43993994089848
1981	9.39882693900796
1982	9.91292195481128
1983	10.4591580069221
1984	11.0261575598889
1985	11.9596741638255
1986	12.986408650053
1987	12.5372672655336
1988	11.7044847879667
1989	11.185580483651
1990	10.8067430534152
1991	10.8305818537991
1992	18.17983811559
1993	18.6717085475981
1994	18.5668893421013
1995	18.2835009117542
1996	18.0605040572185
1997	16.8749356415032
1998	16.9431019434445
1999	16.5082665298365
2000	16.0708851754966
2001	15.3468540023656
2002	15.8401472691069
2003	15.5274001691838
2004	15.3192852382442
2005	15.4913795491228
2006	15.5250105952831
2007	15.6269252863161
2008	15.3070744196677
2009	15.4591404342085
2010	15.45565662189
2011	16.3492343221013
2012	16.9834944177467
2013	16.5299115243762
2014	14.6959175889725
2015	13.4792878145827
2016	13.1926632121925
2017	12.8862791317664
2018	11.9994144623923
2019	11.453700274873
2020	12.2582292848311
2021	10.9378709139508