Year	% of total merchandise exports
1960	0.8763942636011837
1961	0.9167385677308024
1962	0.762493560020608
1963	0.7096171802054155
1964	0.5520136837194838
1965	0.9310081289515737
1966	0.6923520738508879
1967	0.685562852863233
1968	0.6557884953010431
1969	0.5987833666242963
1970	0.7442521127766781
1971	0.7251982964091743
1972	0.890133413134888
1973	1.002887650545196
1974	1.235384497685746
1975	1.031626401891776
1976	1.409541179189817
1977	1.275311383735973
1978	0.9490205173229375
1979	1.3824585103560605
1980	1.3549912093679097
1981	0.9635246128857488
1982	0.7769733961024743
1983	0.7136440124049118
1984	0.6078107723648069
1985	0.45858804206469456
1986	0.6012301978132947
1987	0.49368881016573185
1988	0.6126838497786663
1989	0.4797404327834244
1990	1.325330521164676
1991	0.4232490055372635
1992	0.511330779604769
1993	0.4920838994978669
1994	0.49685686005581386
1995	0.6778022580748909
1996	0.4750600027267633
1997	0.4988089560937571
1998	0.5544862444624395
1999	0.8189980963654185
2000	0.365490478453567
2001	0.369825258730451
2002	0.375880336436565
2003	0.42501739786492115
2004	0.4421372458658722
2005	0.40992038707687567
2006	6.880742507329699
2007	0.45590950966805255
2008	0.5162661227032439
2009	0.7577225795954717
2010	0.5340519840206935
2011	0.5080275007017871
2012	0.7226685199905605
2013	0.5732145361257094
2014	0.6134299666581899
2015	0.7588143642505251
2016	0.8340729521208925
2017	1.476646848724828
2018	1.0999263002654607
2019	1.501321798749356
2020	0.9210706688467388