Year	% of total merchandise exports
1960	2.1505376344086025
1961	6.104417670682731
1962	2.2672064777327936
1963	3.2667876588021776
1964	1.5676567656765676
1965	1.0204081632653061
1966	8.059100067159157
1967	4.974779093478339
1968	1.196808510638288
1969	17.325905731440187
1970	24.99040738829569
1971	4.432551449257893
1972	4.063868047947264
1973	2.665016332148653
1974	4.262681066693965
1975	14.754736653118435
1976	18.436424643946168
1977	12.155092846585298
1978	13.631779433667807
1979	7.292788346494388
1980	12.312434472635772
1981	15.235254221011122
1982	25.965720506867406
1983	30.921290104840764
1984	27.77137803911063
1985	40.80519504291306
1986	35.519404177541404
1987	34.686192145665245
1988	8.085698141998657
1989	19.116093251359306
1990	17.923047354037376
1991	13.681452169420332
1992	19.03467930842989
1993	18.07471747043635
1994	20.235677352640693
1995	9.150407500546818
1996	10.249492821675048
1997	13.317871695019315
1998	11.976918845774506
1999	7.937544451060228
2000	7.011051881315147
2001	12.440521370704111
2002	9.804149293196488
2003	13.581609862522454
2004	12.764944315625968
2005	12.186177215815954
2006	15.949735944063544
2007	6.005574044789568
2008	18.633219922341762
2009	10.458097494227488
2010	8.062333017810634
2011	9.64241696163049
2012	9.696167408656624
2013	10.863694488128523
2014	9.432547437190623
2015	7.571845213315205
2016	5.354561478392041
2017	6.57475769215235
2018	8.729829332285707
2019	8.00075207266002
2020	12.544158295566469