Year	% of GNI
1980	27.51489867686969
1981	20.253428423894764
1982	11.310681499584499
1983	9.751044294274555
1984	9.657115632450857
1985	8.289134287778129
1986	5.416623926374205
1987	6.875626613868128
1988	5.766310429725683
1989	7.850425684218952
1990	8.002885485932714
1991	8.359392936570424
1992	8.130490587935931
1993	8.070866206940476
1994	8.244646321378779
1995	7.846176838712806
1996	9.083431455861488
1997	7.7812214055153675
1998	5.483314756368697
1999	6.97810903860164
2000	9.666080686261092
2001	7.8592391177215335
2002	7.6128080413041985
2003	8.98756062216631
2004	10.654699500689848
2005	12.751106647088143
2006	12.872180740900307
2007	11.794920654026415
2008	13.498365848549723
2009	8.567223543971815
2010	9.880825217063675
2011	12.735328435935445
2012	12.32926860292383
2013	11.2784949820802
2014	10.17399562290092
2015	6.2265318909861
2016	5.391891469158758
2017	6.45413401225942
2018	8.220125243459202
2019	7.266004770168335
2020	4.596281898438971