Year	% of GNI
1970	10.338996677028621
1971	11.27711153430439
1972	11.386145838400545
1973	11.11052942137164
1974	10.449783537812223
1975	11.086007989049973
1976	10.771652476261659
1977	13.652509123152464
1978	15.031773807411945
1979	16.54097375375512
1980	16.207013280831184
1981	16.062364283518825
1982	19.23013161645855
1983	21.54663874115723
1984	26.837038606375213
1985	29.18284185673298
1986	41.54726569784547
1987	41.87462512489899
1988	35.32664121592942
1989	32.817169273098024
1990	39.05058822856696
1991	30.818424065936885
1992	27.407822131835964
1993	26.104507401633768
1994	24.60228384242404
1995	23.0096252713005
1996	22.10493340380562
1997	20.016494792306734
1998	19.214327495567098
1999	21.38266475623424
2000	20.692696624241616
2001	23.917207163626724
2002	22.493945987472642
2003	24.261261599652727
2004	34.938857409302464
2005	36.14831736407369
2006	37.66249819995877
2007	38.741417235180556
2008	36.501665916185146
2009	40.7299655235998
2010	37.94647158862034
2011	35.72608864950978
2012	31.639764581029343
2013	33.778736504535736
2014	34.6353383082272
2015	33.572208500388925
2016	32.69449141058624
2017	33.16324116077969
2018	33.79678578822112
2019	33.04105547305521
2020	32.51559517550785
2021	32.11387308451703
2022	26.851763047058963