Year	% of total merchandise imports
1961	1.0676156583629894
1963	0.6042296072507553
1964	0.6472491909385114
1965	0.8797653958944283
1966	0.13758861005593276
1967	0.5662385902924055
1968	0.23615074289087867
1969	0.007166660694449422
1971	0.0025939327912013798
1972	0.02571465306647238
1973	0.48828562469202164
1975	3.1847945170577594
1976	4.039315817450072
1977	9.796370108358323
1978	9.687085602461602
1979	7.923252187012631
1980	7.829721962871797
1981	9.100939813146294
1982	4.339144021710481
1983	2.0391133011784803
1984	1.3118353098623088
1988	3.7223398513444814
1989	3.062027609045522
1990	1.7401684449130699
1991	3.7600834585467
1992	4.7280717515911865
1993	2.9995099721172385
1994	3.884068625745681
1995	2.207275379655973
1996	2.1794967197360284
1997	3.296610626898637
1998	4.0498136028427005
1999	2.5613516517163206
2000	2.6367559621450787
2001	1.6562172968158217
2002	2.099060018171658
2003	1.6810271253893443
2004	1.7088640117517417
2005	1.1131392128379194
2006	2.4255089602932087
2007	2.179878070717644
2008	1.1357203230406376
2009	1.2230207900431607
2010	1.9042417436239745
2011	1.7794892301734317
2012	4.42933190333169
2013	11.454673963525766
2014	13.29835926690825
2015	10.263696655922288
2016	15.688111532976789
2017	20.15452814929634
2018	13.199035314051194
2019	14.833604779489196
2020	19.642850336002315