Year	% of GNI
1975	23.284360515753633
1976	23.302148971783886
1977	22.906521730166652
1978	23.26427176704953
1979	23.088626556584824
1980	22.23531205443343
1981	20.66423816987953
1982	20.32626122522521
1983	20.656990104494028
1984	21.311898494698003
1985	21.390850986188195
1986	22.252280625204804
1987	21.92164367658452
1988	22.86188294831933
1989	23.21997152197794
1990	23.366277753484976
1991	22.539242760097057
1992	21.823816112477576
1993	21.376409024867232
1994	21.75326281031648
1995	22.785364839240486
1996	22.498198474387983
1997	22.994837967504765
1998	23.30099204555931
1999	23.099610199368897
2000	23.01284957646054
2001	22.966066143360102
2002	22.78243358574893
2003	22.34437729308342
2004	23.050468089309813
2005	23.06160773258537
2006	23.744632914833115
2007	24.393580521290886
2008	23.312961691662604
2009	20.98739099016862
2010	21.60861915505513
2011	22.39335800156166
2012	22.114303997045955
2013	22.414925145309784
2014	23.081808345364532
2015	23.897135774409186
2016	24.253759822715185
2017	24.81805554352966
2018	25.171894460118057
2019	25.505801358640305
2020	24.889936017458908
2021	26.220845639775803