Year	% of GNI
1971	0.32443741241150426
1972	0.34978072496579504
1973	0.3746666335177259
1974	1.4233347302380692
1975	1.7901293324316916
1976	1.8992685249649424
1977	1.9627786001269363
1978	1.667506643432489
1979	2.611455691018054
1980	2.0671409249124273
1981	2.046568746345833
1982	1.9437702914679031
1983	1.8104411357772447
1984	2.049027641788357
1985	2.794106323292478
1986	1.3137742115265536
1987	1.2541278662169937
1988	1.1439589079591042
1989	1.74097316254072
1990	1.9651519089239042
1991	1.2782922136468675
1992	1.5121607607717646
1993	2.0409194660215766
1994	1.795272017612461
1995	2.0337277381504952
1996	2.1471177062359286
1997	2.0915607513076013
1998	1.1960550900483828
1999	1.6290076456989961
2000	3.4686564097823966
2001	2.833236809310514
2002	2.751154230894805
2003	2.1607441315894644
2004	3.478685168195735
2005	5.327958509714496
2006	5.98688695658244
2007	6.480576964252292
2008	8.891274724514377
2009	4.1482587897034495
2010	5.7487415689841805
2011	7.3316777725289946
2012	6.125460556956625
2013	4.875385234554164
2014	3.681480123947718
2015	1.5887582725436937
2016	1.4500235348304358
2017	2.382199173867932
2018	3.1492464557470368
2019	2.668903381766652
2020	1.4281778427470255
2021	2.3915796372952793