Year	% of GNI
1975	12.98293413260251
1976	14.119893853338215
1977	14.899625456917533
1978	14.401737353543052
1979	15.031732232191723
1980	14.439176207651213
1981	16.627909373753607
1982	16.855301750591433
1983	16.484592572787676
1984	16.237648757248564
1985	17.156205812081296
1986	16.84298587329475
1987	17.957248970186654
1988	18.626118722700294
1989	20.201864000004697
1990	21.23269525172781
1991	22.00179088723281
1992	23.171875076465614
1993	22.954264614391565
1994	24.961454096171074
1995	25.362672646848516
1996	25.331196796672874
1997	25.94919395054374
1998	24.997655104067473
1999	24.84527749503863
2000	24.808464561984664
2001	25.11806835298691
2002	26.94312048180825
2003	28.69873045708903
2004	30.85897083970102
2005	31.610511478411276
2006	33.32314020066202
2007	33.96950526423043
2008	32.64294957556813
2009	33.16061913129699
2010	34.53513521418212
2011	33.297343168020355
2012	33.37712772850433
2013	32.640189495656024
2014	31.942175636787642
2015	31.084032005574674
2016	30.718830863048417
2017	30.617309258834737
2018	30.211876578723814
2019	29.06839962340608
2020	28.523179035921704
2021	29.353507401128113
2022	28.807706001342105
2023	29.928137860903824