Year	% of total merchandise exports
1960	19.36530717347916
1961	17.333392274327007
1962	15.063660550290766
1963	14.557072938993375
1964	13.942139939339896
1965	13.988115892382268
1966	14.169767226738522
1967	14.07921222051536
1968	13.393199324609748
1969	12.577891452377498
1970	11.853910740099224
1971	11.579480509243167
1972	11.016714329364085
1973	11.15644975843033
1974	13.528746850561134
1975	16.139169892440776
1976	14.697637539322963
1977	14.6521091637786
1978	14.162915925873627
1979	13.194109619103244
1980	14.467809901675272
1981	16.874823381063848
1982	15.33093052654991
1983	14.083688929988853
1984	12.960927992904056
1985	12.292042771803246
1986	10.479304462212033
1987	9.283552392613307
1988	8.856520298644567
1989	8.726381405847714
1990	8.6664908264581
1991	8.828182068726177
1992	9.605196548346008
1993	12.185753158830574
1994	11.581953473517476
1995	11.82277253530054
1996	12.210629434175969
1997	12.237430196897936
1998	11.221257144915715
1999	9.906781515807284
2000	10.308403545313208
2001	10.64893820574298
2002	10.802362066875409
2003	11.081582497613013
2004	11.813011923997419
2005	12.585906817821519
2006	13.09901573519554
2007	13.832084392373014
2008	14.91912255986694
2009	15.198755700141756
2010	16.278208246364134
2011	16.864839341796927
2012	17.657866700558234
2013	17.76159432992948
2014	17.05024163173288
2015	15.937487024092176
2016	15.71320015351737
2017	16.191988227183383
2018	15.775414367688015
2019	15.707626025813681
2020	15.668747904593843