Year	% of GNI
1977	5.298850264556471
1978	19.95915420330028
1979	16.527417191706487
1980	6.2729300067319445
1981	10.570066996821483
1982	24.86582690558116
1983	22.678558966494865
1984	25.660496759659296
1985	24.084450799806223
1986	24.18668374794354
1987	19.18942069077487
1988	19.78707678624384
1989	18.140096423203918
1990	16.911489096388173
1991	16.443602495431502
1992	11.73072921258816
1993	16.792277573776254
1994	18.949145942576028
1995	20.731743103481712
1996	17.307082516767522
1997	18.528058997770803
1998	18.102903129456426
1999	17.20765621994922
2000	15.239510653399906
2001	12.983334060548662
2002	12.597578053434173
2003	14.67503005450178
2004	17.287925730039007
2005	17.304022985011443
2006	19.556277701313828
2007	19.28985683346857
2008	17.78233144483631
2009	16.207280587394315
2010	15.446592529047257
2011	15.677864108338907
2012	15.342670877087002
2013	15.618739206366596
2014	15.51585671702383
2015	14.512541935125189
2016	16.732926173496406
2017	16.593764463257042
2018	16.003950634683775
2019	14.712480453243414
2020	13.629412988065791
2021	14.175365196415516
2022	14.553856372184205