Year	% of GNI
1971	22.673112590219873
1972	22.766521557292137
1973	23.963348750719103
1974	23.00324007371419
1975	21.743336693211504
1976	22.170543713994732
1977	22.3865920586386
1978	23.17384132091272
1979	23.19316237365185
1980	22.073310600806025
1981	21.982031103267833
1982	20.935979532929576
1983	20.31893071247589
1984	21.761375597073325
1985	20.93161411265124
1986	20.483084645412823
1987	20.808683047896
1988	21.688492977260683
1989	21.607815949420537
1990	21.16860225175764
1991	20.646019793420805
1992	19.76219291088709
1993	19.39118144223382
1994	20.229772494026616
1995	21.409333750855417
1996	23.956158313257475
1997	24.21913622165535
1998	24.06269807924169
1999	23.59667126971983
2000	23.74440413482115
2001	22.6522661266981
2002	21.7938128168723
2003	21.49911590830888
2004	22.060399355184554
2005	22.20994108056138
2006	22.753424900009467
2007	22.4939050655859
2008	21.205882175632023
2009	19.26932572503859
2010	20.38931279643384
2011	21.030163539809177
2012	21.47316712432546
2013	21.625733096428153
2014	22.216426953855755
2015	22.46171574607548
2016	22.192268282426653
2017	22.818796056223768
2018	22.88099887981001
2019	22.92112523609331
2020	22.404000635985224
2021	22.693042058451177