Year	% of total merchandise imports
1964	0.02051393692222044
1965	0.10217983651226158
1966	0.32098044937262915
1967	0.20192656399329
1968	0.45835152184941064
1969	0.6485284193306956
1970	1.0360284813202714
1971	1.5183178807456827
1972	2.8188126636585458
1973	3.0861597160333245
1974	5.0697788804459725
1975	3.1818373137547704
1976	2.4160028436144247
1977	1.7748227478804093
1978	2.2056239147348826
1979	0.715215349351661
1980	0.9887548560018043
1981	0.7318985427063918
1982	0.5292468717903502
1983	0.5292468717508878
1984	0.45893740784187836
1985	0.5550746417720748
1986	0.7090148879636959
1987	0.4322758522680729
1988	0.8743394054428314
1989	0.43963371452707417
1990	0.7170996180607254
1991	0.5672574377162674
1992	0.7225867546705864
1993	0.8584878520376865
1994	1.1863791070571221
1995	0.7003160974193804
1996	1.0609992412778328
1997	1.3676027011302359
1998	0.9903973219575087
1999	1.365725155598256
2000	1.66005148997201
2001	4.71538756463063
2002	3.1523727063729488
2003	3.109452423071634
2004	2.4526084244477753
2005	3.5986347263063068
2006	3.0395439960513846
2007	6.685689170286118
2008	4.996041760846077
2009	5.4509982793550815
2010	5.845904450461496
2011	10.52814918150549
2012	10.656289925850194
2013	5.976417023568529
2014	9.527680978342092
2015	8.780088539095436
2016	9.099346156311936
2017	13.586602340877185
2018	14.053923136568585
2019	15.278893713404132
2020	18.234939532218363