Year	% of total merchandise exports
1960	5.419859210609636
1961	4.827303136424554
1962	4.567813640470336
1963	4.125743810098806
1964	6.243515348819871
1965	5.970592782258236
1966	5.796093649810935
1967	5.1308516872505265
1968	5.523738973762278
1969	4.200191216059009
1970	4.870060781501966
1971	5.873174755606607
1972	5.534059891704932
1973	5.808718396426383
1974	7.2301349060475095
1975	7.302247409570501
1976	6.049289941683241
1977	6.39995670629967
1978	6.044017787897681
1979	5.632950599239341
1980	6.280896212624995
1981	8.583834558798952
1982	9.223423643274904
1983	10.159359848207574
1984	8.943537953653186
1985	9.106062551247438
1986	6.916205263256411
1987	6.972927211417339
1988	7.59927213851744
1989	6.4356803369021565
1990	7.5191774728967165
1991	7.381847802506283
1992	8.206109341596306
1993	8.246790090549156
1994	7.954628312713358
1995	8.910451455572924
1996	8.998568795343912
1997	9.05942816746743
1998	7.955042230917944
1999	8.38597954672935
2000	14.056797510889385
2001	14.322912991267694
2002	14.376552942182927
2003	16.165799397873563
2004	16.641025429882404
2005	17.94912491847363
2006	18.537256922775615
2007	18.97013746890638
2008	20.393985424630763
2009	19.511133853542777
2010	20.274760572077454
2011	22.175145241722465
2012	23.147576468781384
2013	23.000787337130223
2014	22.97174955257171
2015	20.82851115930335
2016	20.29962997924655
2017	20.717894235055116
2018	21.8148705818975
2019	22.19770027164372
2020	21.175710020283805