Year	% of GNI
1978	42.6331967213458
1979	43.3521226000142
1980	53.0857984534901
1981	53.3735943356957
1982	51.0718232044144
1983	45.5970844987214
1984	46.6138654597728
1985	40.0467256128354
1986	16.4867831336925
1987	13.6888208071541
1988	23.0819332640971
1989	23.6154517331431
1990	27.0514144125948
1991	32.0666359714217
1992	22.2181828968453
1993	20.4166003521916
1994	33.070333452745
1995	37.7477871148575
1996	41.0623701539811
1997	47.8886205874102
1998	28.5226836711407
1999	36.8014967667447
2000	49.2203389289619
2001	38.6903390166033
2002	38.1904274610141
2003	36.7635325809929
2004	37.9498408349866
2005	49.5849685193512
2007	46.9649578988447
2008	51.5588764792644
2009	38.9009761410525
2010	47.3833212223722
2011	50.7219918883444
2012	48.7557876075683
2013	44.6299057386057
2014	44.7145014321608
2015	41.8535618999309