Year	% of GNI
1970	0.3700942885797237
1971	0.30924004984127385
1972	0.30707611310699906
1973	0.47093319259400446
1974	0.4654797089130925
1975	0.9348328999203023
1976	0.6343103115127062
1977	1.723026126994434
1978	1.5257838086769215
1979	0.6270020939066643
1980	0.6309955206093285
1981	0.5290294570964367
1982	0.7796564000299461
1983	0.5126471232610282
1984	0.43806095899992076
1985	0.2958665370519157
1986	0.506939675638774
1987	0.4246157599254544
1988	0.42185777074718883
1989	0.41856240371898673
1990	0.5074926695458136
1991	0.5624082851530008
1992	0.5513792873419251
1993	0.5370005902879581
1994	0.403732577412774
1995	0.4371623716757812
1996	0.3796722582515101
1997	0.3414964803881984
1998	0.32790142532193794
1999	0.35080332791186264
2000	0.29844153848376254
2001	0.2915955022329807
2002	0.32540913026545226
2003	0.2981355780440047
2004	0.2143908839136402
2005	0.18967001556676816
2006	0.24878284648667928
2007	0.27468125441705676
2008	0.257626642962908
2009	0.22524384639076597
2010	0.3350295821153637
2011	0.30906230533466167
2012	0.2688549762991249
2013	0.23860159406578066
2014	0.22732879609634066
2015	0.2588572115599305
2016	0.2624378775765678
2017	0.18382509429288232
2018	0.13197635116138565
2019	0.14376387756873063
2020	0.17449367282123854
2021	0.15314734895910045