Year	% of GNI
1980	13.137788688227582
1981	14.487825542245448
1982	14.831663031955063
1983	14.603252984127488
1984	14.233518127246317
1985	14.672254474177686
1986	16.354712997684363
1987	15.734004772011913
1988	15.115662800081632
1989	15.044196289035359
1990	15.262445206637908
1991	14.714109683530305
1992	17.561740941707846
1993	16.9877868089136
1994	19.44171770122073
1995	18.817250520156556
1996	18.307931644875772
1997	18.87856169286592
1998	18.89112334761518
1999	18.701979227142846
2000	19.000788201129968
2001	19.77944876395258
2002	21.000742607654608
2003	21.41971201481862
2004	21.866339730184063
2005	19.89476161374798
2006	20.358359826246165
2007	19.907084235455923
2009	18.345695436450782
2015	20.60879082930429
2016	22.214676794674023
2017	23.280649426751776
2018	23.22069581214562
2019	23.873661240148397
2020	24.453727024187124
2021	24.234693853464623
2022	22.797515407191145