Year	% of GNI
1971	0.3244374124115043
1972	0.349780724965795
1973	0.37466663351772583
1974	1.423334730238069
1975	1.7901293324316918
1976	1.899268524964942
1977	1.9627786001269363
1978	1.667506643432489
1979	2.6114556910180546
1980	2.0671409249124277
1981	2.046568746345833
1982	1.9437702914679036
1983	1.8104411357772445
1984	2.049027641788357
1985	2.7941063232924788
1986	1.3137742115265538
1987	1.2541278662169935
1988	1.1439589079591042
1989	1.7409731625407203
1990	1.9651519089239042
1991	1.2782922136468677
1992	1.5121607607717644
1993	2.040919466021577
1994	1.7952720176124615
1995	2.0337277381504966
1996	2.1471177062359286
1997	2.0915607513076013
1998	1.196055090048383
1999	1.629007645698996
2000	3.4686564097823975
2001	2.833236809310516
2002	2.7511542308948043
2003	2.1607441315894644
2004	3.478685168195735
2005	5.327958509714496
2006	5.986886956582442
2007	6.480576964252291
2008	8.891274724514378
2009	4.14825878970345
2010	5.74874156898418
2011	7.331677772528994
2012	6.1254605569566225
2013	4.875385234554165
2014	3.6814801239477193
2015	1.588758272543694
2016	1.4500235348304356
2017	2.382199173867932
2018	3.149246455747038
2019	2.6689033817666523
2020	1.4281778427470253
2021	2.391579637295279