Year	% of total merchandise imports
1960	0.8889594412254941
1961	1.3952107658816544
1964	3.0670470756062764
1966	4.27497651111807
1967	8.84343036978757
1968	6.589867459432678
1969	10.600422407724027
1970	12.62573428824334
1971	10.520454619894533
1972	9.49788181620682
1973	9.449378182815082
1974	7.617587634401006
1975	5.035312190353322
1976	6.6090823601697934
1977	10.3429453689119
1978	11.965048746882466
1979	8.932896169660761
1980	8.44009970754474
1981	6.800491347282057
1982	8.205731868361108
1983	7.2236550099418695
1984	9.352497356091618
1985	7.6783352330564005
1986	6.481528640333243
1987	9.673159364807086
1988	10.455156569995426
1989	10.13889796693942
1990	7.375372851137153
1991	6.306845794885158
1992	3.959518813247518
1993	2.05142990588282
1994	2.41916204453877
1995	2.5123680785295592
1996	2.754992386565872
1997	0.22395875058314696
1998	0.139063098116294
1999	0.27597927366426794
2000	0.011472915265677295
2001	0.0925729231365896
2002	0.2277903825083016
2003	1.7516875029596333
2004	0.01281427964111465
2005	0.041542849276216966
2006	0.02649438726014567
2007	0.003973498143075575
2008	0.30661509732904435
2009	0.4301204271752653
2010	0.7192824925377505
2011	0.013748462060788922
2012	0.015327377650586506
2013	0.0024133241570356073
2014	0.05431572787670142
2015	0.005597312081406712
2016	2.2591789016560844
2017	11.440554623868916
2018	9.5990829020977
2019	8.078054632066612
2020	8.078054625110601