Year	% of total merchandise exports
1960	75.84234516042542
1961	77.06666666666668
1962	79.04542931895662
1963	79.39196853966574
1964	80.20015289457224
1965	79.05490097768865
1966	79.27017710685843
1967	78.51696320035363
1968	79.11955374641941
1969	81.03155188855258
1970	80.90424038191519
1971	81.41615299510036
1972	82.73797233119967
1973	82.36074270557029
1974	77.6904795190829
1975	75.25088508531424
1976	76.65442906900122
1977	78.20715546351367
1978	79.40472285995408
1979	78.47806694333475
1980	78.531878138907
1981	76.4411993203767
1982	76.28505270699007
1983	76.5718101832941
1984	77.16687528990158
1985	78.38256630491556
1986	81.8209325816198
1987	83.54283610932181
1988	83.3259539568502
1989	84.25337970163102
1990	84.96348109161809
1991	85.74284670841578
1992	85.61382259593402
1993	91.11743195625583
1994	90.33423402823438
1995	90.62271943783321
1996	90.00540152628432
1997	89.8209113339953
1998	91.8108449693141
1999	92.86137094418393
2000	92.61206261329133
2001	91.63421455345483
2002	91.39388675023855
2003	91.20034985063023
2004	90.5311329352704
2005	89.20195156624963
2006	89.12624279879591
2007	88.09048035701204
2008	86.88175263951402
2009	86.73258938192535
2010	86.54685601737056
2011	86.52110457869885
2012	85.87867953664711
2013	86.05081457575636
2014	86.55498005756833
2015	87.66608089741239
2016	88.13045791176278
2017	87.84245569495197
2018	87.84431503828152
2019	87.43708003022331
2020	88.16957694328195