Year	% of GNI
1970	5.150558650739824
1971	4.863748873443155
1972	4.8179645347238775
1973	4.649866443931596
1974	4.5860592165928
1975	4.821930052685837
1976	4.94213196459187
1977	4.805852381298278
1978	4.7720656198565425
1979	4.632717558417488
1980	4.575340965404018
1981	4.7345390968929
1982	4.761263507857412
1983	4.781239189544423
1984	4.9418529656484305
1985	4.80435445855518
1986	4.114061978661032
1987	4.817608691288301
1988	4.110887288654579
1989	4.05555553870064
1990	4.071724872614915
1991	4.122163482302978
1992	4.410214131953734
1993	4.385775083460436
1994	4.536436981592153
1995	4.308323536644309
1996	4.312602711530253
1997	4.37190001406063
1998	4.027415512105761
1999	3.9843909726227724
2000	4.037347455632574
2001	4.161774828476575
2002	4.200531673854183
2003	4.295067664748518
2004	4.18875784701118
2005	4.115097596527209
2006	4.16005399616176
2007	4.107684384355962
2008	4.127307301809085
2009	4.224080246969153
2010	4.241234858668427
2011	4.228755080187053
2012	4.09960079568057
2013	4.31793546281875
2014	4.275561729732525
2015	3.9687784157598682
2016	3.9157493820255707
2017	3.9494583552746785
2018	3.8640604303631445
2019	3.86506609605852
2020	3.8321358863804753
2021	3.825005585379726