Year	% of total merchandise exports
1960	11.615395226927852
1961	12.575608383738924
1962	13.871099604850798
1963	12.907608695652172
1964	15.341087708267839
1965	16.975733813711987
1966	22.967803634045268
1967	18.331646667630473
1968	18.54523935433507
1969	21.309650668382904
1970	17.04134188538411
1971	16.773010185156828
1972	18.17498172562672
1973	18.884096042185668
1974	19.212952469457605
1975	23.229662265208493
1976	21.386682375539085
1977	22.92712615178684
1978	22.84890675616229
1979	23.08227210185625
1980	24.248904146552086
1981	27.14348537855206
1982	27.695560975943046
1983	24.796035789420323
1984	21.58861390195323
1985	20.224659286694386
1986	14.832250391503429
1987	12.44679461917859
1988	11.084273471220499
1989	10.296781862580428
1990	10.096333299443996
1991	9.797669134528695
1992	11.06272612242668
1993	13.297554559786406
1994	11.868216343696552
1995	11.94401545358607
1996	12.106112751546378
1997	12.941074132327671
1998	12.75998913722848
1999	12.169387696047226
2000	12.064702026474631
2001	11.846688274484249
2002	11.785237107970893
2003	11.927337807594807
2004	12.653661665142312
2005	13.19121328617577
2006	13.246427830758146
2007	14.11033400108134
2008	15.437706860304973
2009	15.6369410958603
2010	16.289701259004122
2011	17.220226999389848
2012	19.058990625454765
2013	19.729379900974827
2014	19.10597912261619
2015	18.5511631849309
2016	17.95662153865253
2017	18.84676511981623
2018	18.24879107638268
2019	17.812799647923168
2020	17.21640480562839