Year	% of GNI
1976	19.0727389464627
1977	24.9680838114427
1978	17.2969847318317
1979	18.7637274703122
1980	13.6268828256264
1981	6.3670198749239
1982	10.4901920731707
1983	11.0614569658451
1984	10.2998876381563
1985	9.54610105013372
1986	16.4508395541326
1987	16.2685008527087
1988	15.8414385127082
1989	16.5270729479041
1990	11.9542688888632
1991	12.5303805442578
1992	17.0253728607333
1993	18.4160056423017
1994	20.8843084847316
1995	19.3904676143123
1996	14.3497071884625
1997	15.5337669466018
1998	19.3094873401407
1999	17.0451378496299
2000	16.0599043636422
2001	18.7972470551643
2002	16.0000749708874
2003	15.2971397508494
2004	15.9841083122511
2005	17.3113171026978
2006	17.9560054156276
2007	14.0248859895503
2008	11.9123142385656
2009	12.6818279150399
2010	14.1976891287687
2011	12.6956175031119
2012	12.41778302916
2013	10.5915360558991
2014	12.1403623900756
2015	12.9285134113745
2016	14.4337998073815
2017	15.9156791341321
2018	16.524965598853
2019	19.1614959047126
2020	20.8947095063656
2021	18.1496991133682