Year	% of GNI
1970	15.7466950751145
1971	15.2125018931573
1972	15.2395988852448
1973	14.8511309176155
1974	15.6041029707547
1975	15.6610537817112
1976	16.1820343514203
1977	17.0306564310366
1978	17.6676473545561
1979	17.3960402151952
1980	16.3889518551562
1981	16.2448401107363
1982	16.8957699276633
1983	16.9436341737987
1984	16.5257544092437
1985	16.4113947823284
1986	17.7483177855002
1987	18.4823637878766
1988	19.5762991683828
1989	19.4005662141477
1990	18.9921932834684
1991	18.7213185429006
1992	18.5844287679204
1993	18.5763309537283
1994	18.0993141558995
1995	17.6409381062764
1996	16.9418182426887
1997	16.4974470932097
1998	17.2493169037879
1999	16.9242441637074
2000	15.2846053501326
2001	15.3057423321637
2002	15.647128573842
2003	15.256126088511
2004	14.5799303885088
2005	13.6868035933557
2006	13.4443400453573
2007	14.1444102915885
2008	14.1393274484658
2009	16.2423863784175
2010	15.8051892856166
2011	15.5109923291902
2012	15.425696514465
2013	15.6243123688813
2014	16.1385170862148
2015	17.1455340082869
2016	17.6040157161472
2017	17.0603132197617
2018	16.6839552212471
2019	17.7160484118329
2020	19.7761971483656
2021	17.1154008549006