Year	% of total merchandise exports
1960	88.30662624512776
1961	88.3515126569253
1962	91.6613621896881
1963	91.65567903559992
1964	87.15687905506572
1965	90.46539538605147
1966	90.65097838598287
1967	91.29408292754906
1968	87.41766593480831
1969	88.80655664084428
1970	88.36439925764545
1971	88.53717821235223
1972	89.69852704997018
1973	84.44803975384971
1974	83.8760413051024
1975	81.56324656968818
1976	74.28160252541664
1977	75.65912455064495
1978	88.30016975200137
1979	84.59211343827845
1981	71.82718271827183
1982	81.4528320547055
1983	88.96130041106024
1984	85.70710118688393
1985	91.30277168854134
1986	93.12403046957185
1987	93.12403047338749
1988	90.15832364228764
1989	92.11326200727089
1990	92.79187634417318
1991	87.71089793793129
1992	86.97484189601022
1993	84.23912859735259
1994	84.42301782388384
1995	80.75364884930825
1996	79.74634807910718
1997	78.93902808292226
1998	72.5040283795326
1999	62.1458164969434
2000	71.46931042387993
2001	69.85529767508241
2002	62.80514073784359
2003	69.57612291844968
2004	64.29401815158549
2005	68.88245183847258
2006	69.4189611454752
2007	68.42144030948067
2008	60.811569441753136
2009	56.07044806360625
2010	54.79722216856909
2011	55.49598391272779
2012	52.751761360765535
2013	47.95564711112663
2014	39.75021678139797
2015	37.925690271620404
2016	39.38204715890558
2017	43.432693381759194
2018	41.20476215787571
2019	39.26934781071779
2020	36.71350130728776