Year	% of total merchandise exports
1960	3.0047204066811912
1961	3.7506745817593092
1962	4.5822102425876015
1963	4.818202096810172
1964	11.038925883817877
1965	13.322655109059218
1966	8.6427121350534
1967	3.9479795633999073
1968	7.355572314413086
1969	6.85568305185383
1970	6.425942306257015
1971	6.408736177370875
1972	5.264182019265092
1973	4.5996696337425345
1974	3.673434562158954
1975	4.41762014347354
1976	3.826373553164696
1977	3.8743477821325834
1978	4.31081964937775
1979	3.2789266248943654
1980	7.383291419840382
1981	5.502678894793499
1982	5.171600985424642
1983	5.762356364998045
1984	6.494102642566036
1985	5.3388340488948485
1986	7.409470192041113
1987	7.113840268157051
1988	7.727870718042131
1989	7.5074211235487835
1990	7.583271993365358
1991	7.321116296106007
1992	6.284670865858047
1993	7.040569861735382
1994	7.2548819850123625
1995	8.020887225002149
1996	7.747139966917222
1997	8.38911145075165
1998	9.29897851815384
1999	8.517930183832176
2000	7.217345190372379
2001	6.470390436530706
2002	9.240927474929276
2003	9.289312262889231
2004	9.223643868465524
2005	9.059153021239363
2006	8.124773235110379
2007	9.846033360676572
2008	8.647724367960299
2009	11.272922520298287
2010	10.231919699080871
2011	10.2770941092932
2012	12.004810478209237
2013	11.986663232697254
2014	13.170872039119008
2015	15.04234633936345
2016	14.312711062047246
2017	12.384838695872224
2018	12.071366016633652
2019	11.106287447826672
2020	11.18367833361892