Year	% of total merchandise exports
1960	3.2186338252735625
1961	2.821688051139754
1962	3.1755709186312453
1963	3.6256511273045815
1964	4.669877451089052
1965	5.614634285303741
1966	5.709148000287994
1967	5.7149746784566595
1968	6.543351447250233
1969	6.782704368431896
1970	6.735599244336377
1971	9.163490198212799
1972	7.761846161656239
1973	7.6455541794310315
1974	7.437958968197987
1975	9.156786089783463
1976	8.787083898888707
1977	8.54058888395589
1978	8.40752691056266
1979	8.376418672362275
1980	8.273506316041116
1981	8.586352984436008
1982	8.029012293534327
1983	6.636021080337902
1984	6.882922565518541
1985	6.421004900197526
1986	7.668821518511239
1987	7.295103641639993
1988	7.091225788038336
1989	7.648125770594709
1990	7.309694278086427
1991	7.808065962952433
1992	9.709164859738129
1993	10.943610297208412
1994	10.955527097913778
1995	10.578524180974199
1996	10.608712786114824
1997	11.355141846362844
1998	11.207193313313512
1999	8.742324279611394
2000	8.80815777934849
2001	9.295998342173775
2002	8.587457931224767
2003	8.950334781004075
2004	9.441999440272214
2005	9.73599425094656
2006	9.892265884923942
2007	10.721928713016787
2008	11.524187053929596
2009	11.34174086811213
2010	11.893910619998941
2011	11.778767866830288
2012	11.4800869408103
2013	11.34953713260859
2014	10.620027500206449
2015	10.541846444026515
2016	10.479305402269011
2017	10.64074676348821
2018	10.208486306274251
2019	9.638492914311838
2020	8.90803431183263