Year	% of GNI
1970	14.7832566221939
1971	14.4569870055667
1972	15.478689505840498
1973	15.0630218477294
1974	15.1750669446878
1975	15.069639807408702
1976	14.802143274183399
1977	14.8015674767791
1978	14.8771292634983
1979	14.9128350685604
1980	15.0356467701858
1981	15.0677914723117
1982	15.1109043536857
1983	15.147464437185802
1984	15.115742028688366
1985	15.102888935732494
1986	15.121080177732095
1987	16.636213909078773
1988	17.20695400859558
1990	16.16269805381234
1991	16.333272320205452
1992	15.928893701738717
1993	15.448845620696542
1994	16.43229241594434
1995	15.984223298113646
1996	15.783432488431263
1997	15.769541348894654
1998	15.52508691367458
1999	16.076309167086947
2000	15.745372366177833
2001	17.07532372257109
2002	17.339062118787407
2003	16.631630835968693
2004	15.940438494899565
2005	15.368576924043134
2006	15.002459253858847
2007	14.832332032273923
2008	14.59379214279943
2009	15.32902046220448
2010	14.479556073418687
2011	13.902998695833936
2012	13.762335522603273
2013	13.577435021987162
2014	13.80522789393334
2015	13.977496993312778
2016	14.21220378705248
2017	14.148240672049443
2018	13.431387833167129
2019	14.278527068592378
2020	14.34684246941702
2021	14.412070266610355