Year	% of GNI
1980	69.9613694601653
1981	56.5463794495864
1982	32.1764464489129
1983	27.815260596626
1984	31.9165457320199
1985	33.2404579646652
1986	27.5266691057116
1987	34.3724665996036
1988	26.7657255005171
1989	34.9661822384089
1990	35.9162647156486
1991	20.418650733919
1992	21.7370080945626
1993	20.0808995579738
1994	16.8602576608247
1995	16.3763548119058
1996	19.5916074031287
1997	18.6131870040029
1998	12.7843629602855
1999	17.4156998349852
2000	21.0866822894859
2001	18.0310448632154
2002	17.5169242043559
2003	17.6905089946568
2004	19.1378137558377
2005	22.7472934164275
2006	23.0232872073921
2007	21.3678231881096
2008	24.4982615214515
2009	18.8388588667737
2010	21.3816881030958
2011	29.6469995307936
2012	23.1981887022979
2013	24.4213739310829
2014	22.6364434649594
2015	12.7366999872645
2016	9.72074812619969
2017	11.2405234774314
2018	14.7601652894125
2019	13.8343792408379
2020	11.2381718823925