Year	% of GNI
1980	22.809375510856164
1981	22.35907790810305
1982	23.429853600559287
1983	23.926132439538858
1984	23.54998305794382
1985	24.076981325765896
1986	22.133531832117928
1987	23.032213795512178
1988	23.199181358183562
1989	25.86278058525155
1990	23.132087607527964
1991	22.880523600464624
1992	23.499579583397935
1993	24.83422694561243
1994	25.510898103386474
1995	24.797723772823137
1996	24.94530721973284
1997	24.945742575720327
1998	24.693018163660895
1999	24.590937487872523
2000	24.959442713117042
2001	25.407541683227294
2002	26.945652079572724
2003	28.37476582632511
2004	30.444400271121232
2005	31.05558348460968
2006	32.86951890063127
2007	33.757248576824956
2008	34.751492645012576
2009	33.59183123311118
2010	34.67394309599741
2011	34.53453449919622
2012	34.561473289924
2013	33.81896730199707
2014	34.15778069687759
2015	33.53033673583162
2016	33.07035446665687
2017	33.73120791708772
2018	34.319468211550465
2019	33.82548794928651
2020	34.413306478794524
2021	36.17923455742477