Year	% of total merchandise imports
1969	0.4604210602865246
1970	0.42775366421337363
1971	0.5078227427672406
1972	0.6014854726759088
1973	1.0171697541319735
1974	2.067926941100258
1975	1.9825778594257621
1980	0.01604515480621292
1981	0.0023593873215599906
1982	0.3140230587239196
1983	0.0009328462632044389
1984	0.0025822167039294885
1985	0.0101493453095608
1986	0.017981254273239697
1987	0.01535354537287472
1988	0.13305240568670865
1989	0.515527324229996
1990	0.19738564789087645
1991	0.18295681513111495
1992	0.20626289755915142
1993	0.2438115962687038
1994	0.27140481873087974
1995	0.3561051554011422
1996	0.32145421789536927
1997	0.34374366990379246
1998	0.5637059144905341
1999	0.6355129641502952
2000	0.004497025780308398
2005	7.356679927817245E-05
2006	0.005011982405207949
2007	0.011155503823391713
2008	0.005729369737572249
2009	0.0009923351932897286
2010	0.029392242192019555
2011	0.02468600798263107
2012	0.014456187271378828
2013	0.007075302431425668
2014	0.007945779097219531
2015	0.009622820492377738
2016	0.07568708269252246
2017	1.216613618331583
2018	0.19021310286853813
2019	0.10869511924310908
2020	0.5966510992886149