Year	% of total merchandise exports
1960	20.79669482974721
1961	18.644886184906408
1962	16.160836694484
1963	15.625979189852082
1964	14.982668294326047
1965	14.992351277208515
1966	15.07141576870966
1967	14.773627553902372
1968	14.12290057673575
1969	13.030928287138927
1970	12.514688500672369
1971	12.198101728920758
1972	11.478473730908004
1973	11.732055565474212
1974	14.173329053803593
1975	16.96333908179173
1976	15.277334735720578
1977	15.21043755627911
1978	14.648955227717265
1979	13.523025699605427
1980	14.740517395980248
1981	17.067981009826706
1982	15.325013162136008
1983	14.126222265328419
1984	12.964845066590394
1985	12.298393351768027
1986	10.438020218519863
1987	9.230275791062855
1988	8.710374021253703
1989	8.70107335454625
1990	8.723170989350676
1991	8.981555539214506
1992	9.603786668326752
1993	12.326992205011985
1994	11.602877416280151
1995	11.911355871563163
1996	12.247353433323065
1997	12.290016305123459
1998	11.366385553457354
1999	10.061376010650335
2000	10.427122801938772
2001	10.841857071344144
2002	11.055264609118511
2003	11.344993557170618
2004	12.067419130261507
2005	12.789835751646223
2006	13.334163704401963
2007	14.032082688749375
2008	15.11430481637962
2009	15.566466006133092
2010	16.68547552243788
2011	17.252826704720377
2012	18.103756329120312
2013	18.176162282186823
2014	17.562875571761495
2015	16.495238578117693
2016	16.252391821037907
2017	16.765948450949956
2018	16.38389396775076
2019	16.26944287807025
2020	16.22597535195216