Year	% of total merchandise imports
1964	1.3966223177897645
1965	0.4768392370572207
1966	1.371461920046688
1967	0.21802060467396872
1968	2.5973252904799935
1969	2.6218125480539687
1970	2.396435268605054
1971	2.7149527308829224
1972	3.1669035513843924
1973	5.133553210049322
1974	1.5045728344849771
1975	0.5022459625289248
1976	0.24849997647510413
1977	0.16121216387527576
1978	0.09901152991844328
1979	0.05022444045505157
1980	0.1468820282630613
1981	0.15414549249281953
1982	0.05777406973239324
1983	0.05777406972078817
1984	0.0578624156071258
1985	0.021426736361775476
1986	0.021225059720706364
1987	0.006717280241461721
1988	1.935704311650158
1989	0.008698422455876214
1990	4.5679926851132935
1991	3.067719574427331
1992	8.78901859543421
1993	0.07397398850350333
1994	0.049578725296970855
1995	0.32622912290476663
1996	0.7388657315428482
1997	0.9138449584424393
1998	0.07744419725721592
1999	0.07700037981744252
2000	0.11298047657958277
2001	0.15415905694759602
2002	0.1030392784351958
2003	0.16745136599290442
2004	0.23794062424354112
2005	0.3511523873783483
2006	0.31308262122009356
2007	0.37283795712931633
2008	0.3291390860266412
2009	0.5171491453742628
2010	0.5959439000885662
2011	0.624234705187629
2012	1.3604162946609912
2013	0.6717892793455625
2014	0.3616439376351409
2015	0.6646075777788308
2016	0.39486521648024975
2017	0.37616886460482746
2018	0.4264743448571583
2019	0.38492345764773844
2020	0.6304901993239623