Year	% of GNI
1975	22.280003820293828
1976	23.074243820198962
1977	23.017799866029748
1978	23.26471046343477
1979	23.620343791332278
1980	22.982342384258722
1981	22.722802769245042
1982	21.577221999702047
1983	20.994255768565974
1984	22.203899650901132
1985	21.583541277329623
1986	20.8557763974855
1987	21.27666289855885
1988	22.00611364705613
1989	22.366851432713425
1990	21.548104734542516
1991	20.864946994496812
1992	20.447683418345
1993	20.435104015262194
1994	21.41525176992729
1995	22.223217221856274
1996	24.197130889382425
1997	24.360125564718057
1998	24.10307715213475
1999	23.821260651917097
2000	24.167100890850573
2001	23.261891518200894
2002	22.77764149659885
2003	22.81243622678669
2004	23.74563791233074
2005	24.303898881251705
2006	25.300430870601986
2007	25.510546364340794
2008	25.155014323273285
2009	23.153228994618075
2010	24.882382528247746
2011	25.745747791644355
2012	26.174620316482716
2013	26.055337699248156
2014	26.455963451224633
2015	26.447328776730245
2016	26.073480215524466
2017	26.84044762973784
2018	27.229051915701838
2019	27.062166717708138
2020	26.868517833237014
2021	27.791258853139308