Year	% of GNI
1981	5.034094845729677
1986	4.609061625639444
1987	4.216686168669757
1988	4.121731450795119
1989	4.354469623213808
1990	5.552697803212102
1991	5.292488125407997
1992	5.199994547146283
1993	6.349508444443013
1994	10.437787717896823
1995	10.605457381334254
1996	8.918654040235381
1997	8.028476810669785
1998	7.378016062139803
1999	5.910792700955841
2000	6.971320091684363
2001	6.46977145767747
2002	6.99239535769468
2003	8.472905228486017
2004	8.362341791455238
2005	10.257732424185251
2006	10.970324988500485
2007	12.38489934469921
2008	13.898631502497492
2009	8.38028407562594
2010	9.32940716822319
2011	10.640033325639642
2012	9.095207702409835
2013	7.970467722859619
2014	6.963364780998671
2015	5.117131285741701
2016	5.038850383949752
2017	5.301595440974816
2018	4.902857168869314
2019	4.070246904619645
2020	3.597506207934895
2021	5.9324874720049054