Year	% of total merchandise imports
1969	0.04748767581746642
1970	0.05782235965507706
1971	0.015180193642345149
1972	0.055848020141908906
1973	0.19029379281227915
1974	0.24910022358351014
1975	0.04934439679861295
1976	0.09847236290448369
1977	0.26666211731295925
1978	0.21188762033514316
1979	0.1586111111111111
1980	0.1126000984258665
1981	0.176117607536345
1982	0.040909507395329094
1983	0.015007714709544906
1984	0.0027848981030000617
1985	1.1276979378514387
1986	0.9757275348321947
1987	0.8657259178503709
1988	1.3334508799856957
1989	0.30390119331978627
1990	1.9948194688380703
1991	3.580365223872651
1992	2.832230106941874
1993	2.1237058667374566
1994	2.2619734564339296
1995	2.1431501230516816
1996	1.482187743780879
1997	0.5104152296868534
1998	0.48937453911644435
1999	0.41360047268625455
2003	5.959873523452337
2004	6.686847572540357
2005	6.9939231350733895
2006	8.711936875288668
2007	9.150597022204442
2008	9.692146496306323
2009	9.242446660436816
2010	10.937904392293909
2011	10.640386733026027
2012	11.701431853902472
2013	13.544748916708452
2014	18.867509494857302
2015	18.861367558738053
2016	17.586631509958547
2017	15.243561001744347
2018	12.565195418860856
2019	12.927750225322116
2020	13.970783563261183