Year	% of GNI
1980	3.8642057473670044
1981	3.696962231803453
1982	4.346277838129858
1983	4.351844644523927
1984	4.337816638418233
1985	4.328954971234384
1986	4.5445902582394835
1987	4.655453972203294
1988	4.9734187589594425
1989	4.511309737853038
1990	4.101618159550631
1991	4.38728745496609
1992	4.4046075015624835
1993	4.1870477032011335
1994	3.8983459322727327
1995	4.2200290131602705
1996	4.461058498383407
1997	4.724296827147861
1998	4.719785191254272
1999	5.825025247300345
2000	5.695501511377161
2001	5.249837705088318
2002	5.207324840418417
2003	5.137534764630157
2004	4.301224053130344
2005	4.1183174935552636
2006	3.984967874205991
2007	3.3248737088367695
2008	2.833328309323856
2009	2.7230973257262865
2010	2.481755454312467
2011	2.298967784313909
2012	2.3759184045507658
2013	2.4989602567627576
2014	2.687402925207511
2015	2.953835143474779
2016	3.4218681772135726
2017	3.265182436138366
2018	3.376064574093745
2019	3.7942939406872513
2020	3.726817506329515
2021	3.417403783133789
2022	3.5202099000674485