Year	% of total merchandise imports
1981	3.401678319183648
1982	2.468166286143332
1983	16.74624883393679
1984	5.209189120320539
1985	2.112136590907212
1986	7.554714431809477
1987	8.139885449071475
1988	8.067988048625187
1989	7.30219640001501
1990	8.118796328676513
1991	7.117940586671641
1992	4.246643462733553
1993	3.5901568692042254
1994	4.916196145164071
1995	4.967667137838112
1996	6.021647759903672
1997	4.661376338843487
1998	3.7175391096209176
1999	3.6420145357791913
2000	0.01898916042419982
2001	0
2002	0
2003	0
2004	-9.753829895575424E-15
2005	0
2006	0
2007	0
2008	0.0019982773036204553
2009	0.44367524539206654
2010	0.4125912689888537
2011	0.41582552545164064
2012	0.4083359026667402
2013	0.4536747732372744
2014	0.3994282795013453
2015	0.41438419574452107
2016	0.4625084675044146
2017	0.4462767837268157
2018	0.3903017172399763
2019	0.36109143390223536
2020	0.38876540219921907