Year	% of total merchandise exports
1960	89.35968753698663
1961	91.66140240050537
1962	89.1970988675404
1963	90.32935455349248
1964	88.34551246018361
1965	86.75037669512807
1966	85.49930329772411
1967	87.3627490849939
1968	86.26290985661285
1969	85.98655833082557
1970	83.28476011987814
1971	84.38631790744466
1972	83.99017809199928
1973	83.57971668808291
1974	78.6835311914236
1975	79.63640075726641
1976	78.69041150733507
1977	79.12922078125342
1978	81.24724176944001
1979	79.08652207986916
1980	72.72340858058972
1981	71.32853935624924
1982	73.358584742752
1983	71.59968025225365
1984	76.19193295695786
1985	74.94013265870296
1986	75.783515118045
1987	78.86143898580706
1988	76.71701968077706
1989	77.68151148936437
1990	76.0542251641533
1991	76.10496653741762
1992	76.49974158899663
1993	75.77365709911506
1994	78.07816844546113
1995	77.52554338735884
1996	75.79071597822221
1997	76.50261543778555
1998	78.32736887362437
1999	80.12974509992543
2000	79.6613653292455
2001	76.59914531242221
2002	77.88404121807024
2003	77.35729349864255
2004	76.45210671097591
2005	76.45317524461191
2006	74.61041448284223
2007	72.22114737079515
2008	69.96951062549218
2009	68.90204954622023
2010	65.48025374761804
2011	63.34399283064873
2012	62.210295119355344
2013	57.55236696691735
2014	58.0026318416412
2015	60.98811397804299
2016	59.11904819179601
2017	56.73147192644761
2018	56.26051877633269
2019	52.309212067448975
2020	53.454677419513615