Year	% of GNI
1970	6.977475026577493
1971	6.732589515331746
1972	6.760760220783755
1973	6.69316156660551
1974	6.852300100561418
1975	7.2749538426895715
1976	7.284811963272313
1977	7.146795158189475
1978	7.271517797174223
1979	7.7108365756265735
1980	7.641710766206624
1981	7.796885896602799
1982	7.964257920622592
1983	7.844042492933983
1984	8.18473927357389
1985	8.555305570021716
1986	8.548736866782924
1987	8.744607404736628
1988	8.850946670555537
1989	8.811568356792137
1990	8.748355990207891
1991	8.993769134021619
1992	9.209780659927327
1993	9.066559267518866
1994	9.027705837514553
1995	9.038564795200545
1996	8.963396201423466
1997	9.092311145428134
1998	8.977450305546888
1999	9.020624744619973
2000	9.127212162915416
2001	9.167962894258242
2002	9.262475293156859
2003	9.30871768995485
2004	9.74334991108744
2005	9.739325422081214
2006	9.71941209386338
2007	9.67449270975224
2008	9.507587382925799
2009	9.617721080204207
2010	9.751777320664587
2011	9.761172190486638
2012	9.751480168924628
2013	9.725743366906881
2014	9.71364438077699
2015	9.51620567156744
2016	9.528496898591108
2017	9.533197472597848
2018	9.606450205925144
2019	9.422754374318776
2020	9.94695180545968
2021	10.163777599185439