Year	% of GNI
1970	1.1795735811805959
1971	1.2410406310338806
1972	1.4006818240904333
1973	1.268836141737746
1974	1.6318604677506292
1975	2.272171250912595
1976	2.02081905814255
1977	2.254795035083407
1978	2.6373669352008102
1979	3.129342811452996
1980	2.9364318266450398
1981	2.7028056469530797
1982	3.019955792790357
1983	2.76266651964382
1984	2.917720622277684
1985	4.038898567340563
1986	4.324873525260114
1987	4.313640993682723
1988	4.475643293242553
1989	4.181800886291312
1990	4.462398306161615
1991	4.01274637676096
1992	5.026877598033645
1993	4.501648964064459
1994	4.459748400408933
1995	4.118912196881898
1996	3.1457347524707324
1997	2.8988738638808056
1998	2.9774966979910404
1999	2.9485788441273613
2000	2.9107100829365162
2001	3.4226593156414395
2002	4.459586711529768
2003	4.836441117539523
2004	3.815711741211511
2005	3.3087387365157497
2006	3.322866594091899
2007	3.237701018888761
2008	3.5206786727357184
2009	3.664267011746667
2010	3.081009414992834
2011	3.158474559488341
2012	2.8599277300943395
2013	3.1585923511447884
2014	2.7466357458000314
2015	2.9347235215308634
2016	3.1008380557041666
2017	3.055882559785376
2018	2.797023090188626
2019	3.0872686748300007