Year	% of total merchandise exports
1960	9.596635965763301
1961	10.571847640215488
1962	10.848933098174193
1963	11.446989685697016
1964	11.825755422568335
1965	12.52495357269103
1966	11.480541827064977
1967	10.75436051601165
1968	11.466507629150371
1969	13.009632066441942
1970	13.29024634857053
1971	12.976220335926811
1972	12.837330118829621
1973	11.90979655488123
1974	10.261414518448147
1975	11.413748723731386
1976	11.556714833240488
1977	11.387786337680353
1978	8.247887664654394
1979	7.6422534515750495
1980	6.77724699832603
1981	9.46232916180629
1982	7.830754938916577
1983	7.171665701158012
1984	7.528523056238409
1985	7.452477753999949
1986	9.544372912129663
1987	8.862683181372903
1988	10.058509691381014
1989	8.711110878422868
1990	10.313284980297446
1991	7.841532568360752
1992	7.08668402649379
1993	6.051282395353316
1994	4.792172023376343
1995	5.6562843243882455
1996	5.447446244442073
1997	2.461652056560186
1998	2.635763403521833
1999	3.129706876746599
2000	1.8979975121401989
2001	2.4846089389146804
2002	1.3793973704816962
2003	1.4367939892795067
2004	1.0437723192182244
2005	1.137073352248797
2006	1.240195751204168
2007	1.3349855239042112
2008	1.3651646119083334
2009	2.0000448002747877
2010	1.235001960675474
2011	2.0258311219878355
2012	1.3518244656667286
2013	1.8136413274631515
2014	1.1642906787887815
2015	1.1137118938258164
2016	1.4162878208636114
2017	1.612863707009906
2018	1.3964006645251548
2019	1.5669239923306397
2020	1.4959121822344421