Year	% of total merchandise imports
1990	4.029508708842545
1991	4.972630325101485
1992	2.816122978647604
1993	4.062880576334453
1994	4.537588155371684
1995	3.408291606182822
1996	4.597604570214953
1997	3.50902654609043
1998	3.638875847233874
1999	4.0100785738497375
2000	4.481761066335075
2001	4.505581404429364
2002	4.358314175645436
2003	4.4082374441819265
2004	4.178037856596514
2005	3.879126618383597
2006	2.942280161355889
2007	3.1198786435183727
2008	2.8226209506294793
2009	2.8212291621149825
2010	3.7210393389610226
2011	2.6250497673578854
2012	3.0392433386826885
2013	2.607357149724532
2014	3.1498171841335494
2015	3.155565821631275
2016	4.204003058050887
2017	4.603083564313186
2018	4.383523023962812
2019	4.067055114715358
2020	3.4540973382653495