Year	% of total merchandise imports
1960	0.9300257526192748
1961	0.6161326625441628
1962	0.946531790756867
1963	1.2719086212616713
1964	1.6038972138339695
1965	1.8340159647650516
1966	2.0401336349039174
1967	1.7566094108089003
1968	2.0584148633007193
1969	2.3114884485630096
1970	2.275835003142218
1971	2.4931657469552357
1972	2.748207417907929
1973	3.41110247806388
1974	6.473893468923918
1975	6.123430945057631
1976	7.43245968923665
1977	7.290461591215422
1978	7.305326855175574
1979	9.805630788957709
1980	9.73463201069815
1981	7.074872670329685
1982	8.239347641513332
1983	9.288667919351285
1984	9.657904548784382
1985	9.882339580775202
1986	6.100394849951588
1987	6.710061968766275
1988	5.319375089582218
1989	5.377241017280862
1990	5.083050922449816
1991	3.3604862197721554
1992	2.5483663312660743
1993	3.3354798240047736
1994	3.727704451380314
1995	4.299073307926774
1996	4.970689252928989
1997	5.113421248110286
1998	4.910140821466241
1999	5.127277757890222
2000	6.333411639500539
2001	7.367033790209082
2002	8.06732116404089
2003	9.961603354066078
2004	12.293809405775207
2005	13.632475569729358
2006	15.661593586328216
2007	17.626107973369237
2008	19.130713638635246
2009	19.446018889471894
2010	21.54595583681756
2011	22.33922754705377
2012	22.6091955156882
2013	23.76744181322465
2014	24.752109446780185
2015	25.859959315175416
2016	25.443824548570877
2017	25.741649427108637
2018	26.557824839194456
2019	27.623096085443034
2020	28.796262285245927