Year	% of total merchandise exports
1967	0.46536485097636177
1968	0.5654419140320244
1969	0.4470785208191789
1970	0.5932973435245069
1971	0.6010665265807011
1972	0.4078113348247576
1973	0.510854424557807
1974	0.6497632178749837
1975	0.4430537843629623
1976	0.4900322344903381
1977	0.36110814342419933
1978	0.26331018128204536
1979	0.2710115175381104
1980	0.3860122076457113
1981	0.7734449984286479
1982	0.7112653131726502
1983	0.556743605589097
1984	0.2825709853938575
1985	0.2370472686014276
1986	0.41092254006369555
1987	0.3830962541885469
1988	0.4587094452274845
1989	0.3133277049716963
1990	0.280731518830105
1991	0.3518502017542552
1992	0.29332454990746964
1993	0.38915010766074243
1994	0.49872879422969124
1995	0.5751273551185768
1996	0.6031064067881842
1997	0.6001214463458814
1998	0.6490249481765492
1999	0.541231605574727
2000	0.4683533833434734
2001	0.5422830378222473
2002	0.6135588030724268
2003	0.725619479084301
2004	0.7575761135395341
2005	0.936541695927589
2006	0.9443175304384632
2007	1.1578611011798354
2008	1.300978445229682
2009	1.2951962411176223
2010	1.4273641123432688
2011	1.7264727783642666
2012	1.6700941119394468
2013	1.8223594613646712
2014	2.0273690303907377
2015	2.11508617209614
2016	1.8954609046849757
2017	1.5782447238072503
2018	1.4733944672851857
2019	1.5406914444948425
2020	1.614696509217427