Year	% of GNI
1970	13.579308317709348
1971	13.93173916617062
1972	14.111313858502367
1973	12.885625577675231
1974	12.804377265060149
1975	14.122917389086359
1976	14.236668169485474
1977	12.71684018045018
1978	12.048884590830733
1979	11.875084806380798
1980	11.096106545275438
1981	11.615438784449875
1982	13.467582092394206
1983	14.101658772539249
1984	15.530911479542734
1985	16.82984760914138
1986	18.139780186624886
1987	19.285986256847593
1988	20.20161358143875
1989	25.194947357332882
1990	26.350386011968563
1991	31.89992605646563
1992	30.928737217010404
1993	33.157477335463966
1994	30.298974185566387
1995	26.332174958856864
1996	24.14265366812754
1997	22.81254719177759
1998	23.536464299477394
1999	21.91706331321033
2000	21.822907534251776
2001	20.676060658249177
2002	20.673247550087847
2003	19.709221337972142
2004	17.558928398396265
2005	14.880053375742067
2006	17.099679124277344
2007	16.84141024577734
2008	19.057205893866072
2009	19.2155611185983
2010	17.520327243228024
2011	18.505560994403538
2012	21.735187866141263
2013	23.300875777186263
2014	22.70491984257664
2015	23.02976895098962
2016	20.081223544857533
2017	19.504937371260436
2018	19.49053107210579
2019	19.97663663531729
2020	21.43592385088646
2021	19.823011966458328
2022	18.42307654667348