Year	% of GNI
1975	30.4919158424811
1976	28.8903398957269
1977	27.7466879351048
1978	28.1302517902348
1979	29.6547873590088
1980	30.4092396175806
1981	29.4475527803279
1982	28.1783616472093
1983	27.8757819661391
1984	28.5084156586772
1985	27.5574779073737
1986	27.212819062176
1987	26.768933625564
1988	29.0166170511056
1989	28.7651937335046
1990	27.1479906244136
1991	19.9426642528818
1992	17.6882502055926
1993	18.5390577701355
1994	21.497109853609
1995	24.4946926120202
1996	23.8283200450743
1997	26.8270635868031
1998	28.2088930383476
1999	29.4646455640457
2000	31.4618457188761
2001	31.9746840067014
2002	30.8076837263207
2003	28.1821561468808
2004	29.3881486267599
2005	28.4844575634456
2006	28.5008194113121
2007	29.9260911175384
2008	28.2221966337326
2009	23.567565107136
2010	23.5803551011132
2011	22.8117274076122
2012	21.3801629330457
2013	20.2849698933219
2014	20.4856654866071
2015	20.6878613598158
2016	21.1868586533886
2017	23.1911898071351
2018	23.32868825162
2019	23.6512380864367
2020	24.7348557284393
2021	24.8192556874358