Year	% of total merchandise imports
1960	0.008446659346228565
1962	0.04181116410699773
1963	0.0266140365362523
1964	0.06728681500694295
1965	0.08073389804452408
1966	0.03263240025335795
1967	0.00821561321781145
1968	0.020958119775857997
1969	0.026052141197606356
1970	0.014394754551441454
1971	0.010751677245384506
1972	0.010491630776839775
1973	0.050494068997689275
1974	0.12276068119178218
1975	0.2754979155997254
1976	0.11210971857640087
1977	0.12440290321664739
1978	0.07589571530564261
1979	0.04591988686202642
1980	0.08600560650525692
1981	0.1401996691642348
1982	0.15330322924519357
1983	0.17086955643236626
1984	0.1372730590532149
1985	0.13757131825991037
1986	0.29512094111819465
1987	0.3191644124104239
1988	0.32687246766218775
1989	0.31625088800186846
1990	0.19062543204018342
1991	0.17232443806083883
1992	2.16403935177514
1993	2.8438840987567646
1994	2.1456001700079974
1995	1.7487282622319502
1996	1.9855373827736125
1997	1.8281320129402867
1998	1.7416178770428403
1999	1.9676330378011617
2000	2.055872083123879
2001	2.543721024559154
2002	2.5592830058179987
2003	2.508626885421505
2004	2.4441025061202706
2005	2.5843111875320584
2006	2.316220301702383
2007	2.440498416324392
2008	2.696620573283103
2009	2.807659508296548
2010	2.844531693761225
2011	3.3570312305382615
2012	3.4924942727269466
2013	3.3966830058207935
2014	3.1987807709012857
2015	2.806120263102134
2016	2.559806924042276
2017	2.766093823375489
2018	3.217680305578252
2019	3.4434552633002373
2020	3.4216783871015566