Year	% of GNI
1975	5.61669118843316
1976	-5.75532863710965
1977	-8.7485522352823
1978	1.4116661541445
1979	-4.74013747757996
1980	-1.0698703423778
1981	2.6025787532426
1982	-9.46154103445995
1983	-5.75895474874504
1984	0.730892113277007
1985	13.1662198408346
1986	9.29585520680921
1987	11.4803026565407
1988	16.5422964216864
1989	14.3904709917083
1990	6.85624767237586
1991	17.7077249991475
1992	15.3868497506917
1993	7.82044093339599
1994	44.8879990391603
1995	17.076445376314
1996	18.3397700795458
1997	10.737045334325
1998	17.5636428917251
2012	37.7580520719407
2013	36.5056892144298
2014	23.7786941839311
2015	22.1191192313629
2016	28.4960601786479
2017	30.804057687538
2018	32.8746328322881
2019	37.0879207179579
2020	36.7794503739866
2021	38.9380291414944