Year	% of GNI
1970	7.422791527627302
1971	7.85328915198225
1972	10.060932165577078
1973	21.268599658899664
1974	19.94113975169885
1975	19.550088300200606
1976	20.870698470574258
1977	31.217296784733325
1978	33.91658919853076
1979	65.92097894157651
1980	70.7045712494081
1981	45.45250988016968
1982	35.46667858455239
1983	33.30699820770913
1984	30.459385316359775
1985	30.94604062349716
1986	21.83886877797506
1987	24.766561306729866
1988	23.150681644954687
1989	19.42884783016344
1990	25.359108490646296
1991	26.354733150844737
1992	29.47316830112707
1993	18.9823971388641
1994	15.910906178949656
1995	17.92934781259962
1996	15.746851232131329
1997	13.710710287288432
1998	13.331310275160297
1999	7.992178006431708
2000	8.379844542226119
2001	13.170784285310585
2002	15.525847581159624
2003	18.243482659393983
2004	16.741926270206516
2005	17.642774225340034
2006	16.503956548477255
2007	14.771838598754965
2008	13.297256873436709
2009	8.441255917955623
2010	7.3385062242066335
2011	6.758483380549732
2012	5.415577952943817
2013	5.325121573867239
2014	7.251683940015177
2015	5.957681422591368
2016	6.255810888860928
2017	6.494583772764551
2018	4.9082620766859275
2019	4.097281078729541
2020	3.3996254050727215
2021	5.37335654646892