Year	% of GNI
1970	1.2286721734194417
1971	1.3688420812225766
1972	1.592660861502528
1973	2.376368240943651
1974	6.133139205826606
1975	5.33088231607833
1976	5.8871131068665346
1977	5.944080036497684
1978	5.733187081571825
1979	8.639963649918403
1980	9.084531489035506
1981	6.720946566022845
1982	5.7344790793183265
1983	5.56561413610282
1984	5.36769263704652
1985	5.116807586558861
1986	2.85877708916796
1987	3.8323555925432085
1988	3.3914585842207967
1989	3.8252364587953105
1990	4.158394631368933
1991	2.8016566680636585
1992	2.7087657002538355
1993	2.535050773915677
1994	2.361229540619675
1995	2.4407830246649724
1996	2.5479731602396853
1997	2.154893048746737
1998	1.3925787016586941
1999	1.9919081585276952
2000	3.2240638295950843
2001	2.7515376796949713
2002	2.7546058660902513
2003	2.989527965110325
2004	3.811937175967646
2005	4.6260786276368435
2006	5.027821147451627
2007	4.800486427502307
2008	5.866998657160338
2009	3.214277249301978
2010	4.020701875591811
2011	5.062576930714465
2012	3.849750757539865
2013	3.2543021644228647
2014	2.7821409330527476
2015	1.5742976342797592
2016	1.3853322449166292
2017	1.6848767577730006
2018	2.1551633683031994
2019	1.799798668026767
2020	1.206311825784206
2021	2.579584468178922