Year	% of total merchandise imports
1966	0.13315579227696406
1967	0.12091898428053204
1969	0.0352863897680327
1970	0.058009372139186235
1971	0.05377734112415326
1972	0.11670427137633237
1973	0.8381603181806049
1974	0.26754638654533686
1975	0.23894567077936854
1976	0.3564617802341391
1977	0.4263799975842493
1978	0.3863978797434879
1979	0.49669054640804683
1980	0.49936224109077665
1981	0.4147704848476512
1982	0.5991796137335956
1983	0.20987958448476451
1984	0.2578118397359361
1985	0.2098795844493958
1986	0.5459718351647188
1989	0.4607864685550678
1992	0.4281150622614038
1994	1.4352837048629667
1999	1.7982289251493886
2000	3.068329498602931
2001	3.284519720060191
2002	1.2255061424924456
2003	1.8178451410339933
2004	2.3401484188218595
2005	2.8738760103963834
2006	2.897160223470965
2007	3.8887498133085665
2008	4.727494844597737
2009	4.369958615303159
2010	9.178832204469666
2011	4.923705583797693
2012	6.138221842837348
2013	6.214335126626377
2014	9.134821757333048
2015	15.885335939076201
2016	14.80044880045231
2017	9.74149644323496
2018	10.794013938525222
2019	18.352459493124513
2020	17.428851191375323