Year	% of total merchandise exports
1972	25.52777989482508
1973	20.026885484638864
1974	32.28441929616906
1975	38.608988077040664
1976	31.179761250686777
1977	32.26031009387195
1978	29.442366144493803
1979	25.53120141450477
1980	33.27258691167724
1981	36.65129209578568
1982	31.44155404525688
1983	28.977445269580098
1984	24.312891866357468
1985	31.563034968815384
1986	24.069928339201944
1987	17.021731054977714
1988	15.930231657540295
1989	16.61755201821917
1990	12.354875263944756
1991	10.891986018572219
1992	11.71994629435729
1993	11.180364493785529
1994	10.147129193800044
1995	7.976500008650531
1996	7.215086372884677
1997	9.181637620135021
1998	5.908812510922718
1999	4.315558904484824
2000	4.01430035365932
2001	3.431524295426997
2002	4.2742711133138105
2003	3.881356271853572
2004	3.937404705338026
2005	4.464904343268536
2006	4.730681794212893
2007	5.005805462369036
2008	6.572073764699583
2009	6.657365617102425
2010	8.433877968449197
2011	7.778544084883111
2012	7.355299308203215
2013	8.112786534387268
2014	8.473805578705239
2015	7.89856310395224
2016	7.888259323015287
2017	8.141428812623175
2018	7.0858279586073545
2019	7.176848684352491
2020	7.694121358821196