Year	% of total merchandise exports
1960	2.9348724451832062
1961	2.964125470362574
1962	2.4557853454593754
1963	2.518229907914624
1964	2.474926107695308
1965	2.761661553285925
1966	2.483937251900841
1967	2.5536073224763016
1968	2.6006915409409377
1969	2.5135311146713426
1970	2.687619427826727
1971	2.938080339791954
1972	2.671032191932304
1973	2.762276327333611
1974	3.092627111055688
1975	3.368318760927944
1976	2.6709689154449783
1977	2.701505880258195
1978	2.846536962302338
1979	2.5904705639267336
1980	2.856177168030609
1981	4.456004806577772
1982	4.931871770619981
1983	4.739325373108396
1984	4.564444305407394
1985	4.309742785702252
1986	4.5285224141342475
1987	4.4943072692447465
1988	4.2898662721671705
1989	3.6262982571847577
1990	3.537584827825542
1991	3.6743707567566126
1992	3.590114945970539
1993	3.617009103820548
1994	3.292536323212838
1995	3.189746384484448
1996	3.03885047826793
1997	2.9540828340852703
1998	3.1459472940752824
1999	3.0239103394823252
2000	2.914718350783454
2001	3.4310033457459745
2002	3.765603217890002
2003	3.5949042193149943
2004	3.828318900165526
2005	3.622114897400962
2006	3.7652913167886286
2007	4.519757960660709
2008	5.425981559933646
2009	5.8368109275815065
2010	5.444922105604357
2011	4.829222957426525
2012	5.49010588362361
2013	5.426664314309438
2014	5.617904138964945
2015	5.73852649680618
2016	5.690281437960094
2017	5.290138267465853
2018	4.868401455298137
2019	5.325736542891955
2020	5.184570921146378