Year	% of total merchandise exports
1960	5.382570342752658
1961	4.686346079615447
1962	5.292596144163566
1963	5.852389070891009
1964	7.483678768969004
1965	8.877823706171096
1966	8.901848285615813
1967	9.125640138902629
1968	10.245750892782203
1969	10.34664985118477
1970	10.225901843320806
1971	10.774089493826343
1972	10.772532274358449
1973	10.717986630031668
1974	12.439515147064508
1975	14.096156229528514
1976	13.31815213242398
1977	12.120725985978916
1978	11.549609483454928
1979	12.04872978239789
1980	12.100432055923388
1981	12.134925336595211
1982	11.063480343626452
1983	8.794073977454081
1984	8.921260187335358
1985	8.238934125282693
1986	9.501544443952497
1987	9.007410492236916
1988	8.744551850970868
1989	9.688476475277525
1990	9.746849809440592
1991	9.890449188048587
1992	11.930108086743834
1993	13.224992580479519
1994	13.337107858743503
1995	13.005457886892788
1996	13.192233120692833
1997	13.737233447310611
1998	13.149429770476262
1999	10.229750715575452
2000	10.52323544589597
2001	10.954166200038772
2002	10.073102557491646
2003	10.529875731688263
2004	11.458027999110355
2005	12.128517838935702
2006	12.605895261811176
2007	13.570114097239674
2008	14.647128482238546
2009	14.03219503184949
2010	14.525130384769255
2011	14.389247627576863
2012	13.872919411817596
2013	13.697093898000528
2014	12.723456258330113
2015	12.119057149602883
2016	11.856642712464918
2017	12.09050805017892
2018	11.586120081505952
2019	10.690030765507576
2020	9.895643473867672