Year	% of GNI
1980	14.8407110337644
1981	14.204153522170916
1982	15.762476896309622
1983	15.79938788058953
1984	15.630687146593255
1985	15.946102491349487
1986	16.12533169231745
1987	16.088237984633437
1988	16.074590878636297
1990	17.82070959418485
1991	12.37602331940756
1992	13.55269484914569
1993	13.31666616432601
1994	13.325580289264762
1995	14.317132872053685
1996	14.51741475115991
1997	15.066101436075188
1998	15.093191321570103
1999	14.038290726415822
2000	12.425438949511502
2001	13.477983363483991
2002	13.374574851634243
2003	13.269310269584029
2004	12.258197877165289
2005	11.360953103891761
2006	10.99219745359869
2007	10.706377811695388
2008	9.944668622378817
2009	11.009504157701937
2010	11.430415473432943
2011	11.634013995660442
2012	12.23033755203955
2013	12.405515667907006
2014	13.440076594424166
2015	9.708257757418798
2016	9.594466670725222
2017	9.668338479253197
2018	9.990926086514856
2019	10.167578382654161
2020	10.454627431839809
2021	10.621364490074619