Year	% of GNI
1970	13.109428454615767
1971	13.254410968167985
1972	13.307994504462998
1973	13.305212915017108
1974	13.843284147305958
1975	14.331287314215812
1976	14.14592921249491
1977	14.266073702648868
1978	14.251603118756066
1979	14.420415764785881
1980	14.996472804081655
1981	15.414003233898699
1982	15.919959369067353
1983	15.85003272550939
1984	15.484634748957365
1985	15.510939691035437
1986	15.771851745759745
1987	15.817561376888634
1988	15.73851139417364
1989	15.828875635701827
1990	15.96274496233009
1991	16.308514352033775
1992	16.391358310075343
1993	16.719191356296363
1994	16.638519088815745
1995	16.702764927370723
1996	16.37667197600945
1997	16.207060913297074
1998	16.153511397175066
1999	16.367413823450068
2000	16.410034728279797
2001	16.470694220608785
2002	16.534029783383886
2003	16.487224310976405
2004	16.336229345027135
2005	16.34184292581804
2006	16.31291540933908
2007	16.43784444333554
2008	17.10042537723245
2009	17.967337705119117
2010	17.41295700753527
2011	17.337216814728393
2012	17.326257781451545
2013	17.193731450325355
2014	17.120079946004783
2015	17.089888135464417
2016	17.18821624578861
2017	17.098753854995028
2018	17.12369421648617
2019	17.29957883339162
2020	18.3777782601741
2021	17.930709248952233