Year	% of total merchandise exports
1960	85.29336850548977
1961	85.27050728756267
1962	85.50468252168932
1963	85.50724860681495
1964	82.55968061259551
1965	81.09220414490879
1966	81.21380213542888
1967	82.96405370083964
1968	82.6904709586043
1969	82.83427781517632
1970	83.01427161758255
1971	82.37277079156128
1972	82.76876713497624
1973	80.18188645190402
1974	79.96607656242666
1975	78.11290122536187
1976	80.92071664547491
1977	79.7420485289949
1978	79.78547818497715
1979	80.26928223220871
1980	78.92730607993674
1981	73.50365038010993
1982	73.88418586015145
1983	75.20428293928977
1984	75.40894975819924
1985	76.01151360964364
1986	77.7233149347202
1987	77.6933725784093
1988	77.00709601556474
1989	78.98292915599012
1990	80.80281180978707
1991	83.11498713198827
1992	79.35795189602872
1993	80.16862037707189
1994	77.73649340755857
1995	76.70684054493746
1996	76.67336686587731
1997	77.5259046824988
1998	77.52616567070454
1999	80.57516166894564
2000	80.79834544828007
2001	79.8147702897412
2002	79.03034756303757
2003	78.33752542078959
2004	77.94017820679252
2005	77.1881306777641
2006	76.60399283252806
2007	73.87792083474778
2008	71.98515237453252
2009	70.14611903790848
2010	69.56762133697265
2011	67.37854009388906
2012	68.05255722430047
2013	67.63535172530997
2014	67.56014046722052
2015	68.02670570614279
2016	67.57823702075663
2017	66.47671344118528
2018	66.2135109895356
2019	65.24346948524398
2020	65.58030676148022