Year	% of total merchandise exports
1960	7.790730736423088
1961	7.960199004975125
1962	8.695652173913043
1963	8.646517739816032
1964	9.746452663410095
1965	6.859542697153523
1966	7.182835820895522
1967	7.483474976392824
1968	8.416515426497277
1969	6.644898298739653
1970	6.306905583503097
1971	9.971060247303342
1972	8.331636409204117
1973	7.7891156462585025
1974	10.407543043905076
1975	9.184084123068933
1976	10.082394271258753
1977	12.439638640512003
1978	10.958246680531115
1979	11.306887925542659
1980	13.536801919630047
1981	17.247611670539634
1982	15.613453018900778
1983	16.783424886087555
1984	19.543484275569494
1985	16.09088480985844
1986	17.151264051275117
1987	17.098311898197817
1988	17.63465137179044
1989	11.339260451339126
1990	10.390781462764707
1991	12.64726172091121
1992	11.38572156238392
1993	12.422440116406225
1994	11.051003418602372
1995	12.904190578483052
1996	14.186629071952591
1997	15.531574776889359
1998	13.044552787005207
1999	10.05804665511801
2000	10.939517148464422
2001	10.650150657544472
2002	11.859718623232082
2003	11.763177509397297
2004	12.94021894627235
2005	15.173211905557023
2006	16.25979788954337
2007	15.865293640151101
2008	24.359323377092974
2009	19.0011068727529
2010	21.873469901863263
2011	24.58108249730337
2012	24.74696591076589
2013	24.02834581823673
2014	22.69556176663454
2015	24.150935303000225
2016	21.23045000224511
2017	22.341008261929495
2018	21.85203020587685
2019	20.207447981218007
2020	15.783261865614417