Year	% of GNI
1970	1.4122314862750134
1971	1.175834205175886
1972	1.233826193359572
1973	1.5728724705441486
1974	1.4039098365369482
1975	1.6535448833954056
1976	1.547173580608425
1977	2.3721857509550466
1978	2.1890011216881238
1979	1.8471648937049387
1980	1.7983017985384393
1981	2.057417529850011
1982	2.9873297117829503
1983	1.9493107649675738
1984	1.9599270700783937
1985	1.7469025210941036
1986	2.4509871046049434
1987	2.0253001036393736
1988	2.0082609109323233
1989	2.0991227323456525
1990	2.3709059332657674
1991	2.2800258617752895
1992	2.297095577366908
1993	2.0763394410281566
1994	3.040450455517998
1995	3.944069200356331
1996	3.832547711410803
1997	3.4645762993608034
1998	3.7725434860308553
1999	2.5200593051375133
2000	2.485557227433258
2001	2.587089317068889
2002	2.96803564545516
2003	3.5490187517432936
2004	2.491695901608018
2005	2.2956198300556188
2006	2.039629699083943
2007	2.58709504065854
2008	2.027661833728461
2009	2.0723585133534375
2010	1.5623153514816688
2011	1.5222043950542414
2012	1.6757737849502963
2013	1.7242604399656443
2014	1.8075880809660987
2015	2.1251515777381
2016	2.4418029295330057
2017	2.2833192003204927
2018	1.5026719402005042
2019	1.3989474845989736
2020	1.6264953566549745
2021	1.566968203505041