Year	% of total merchandise imports
1981	0.011461791180066879
1982	0.011180083589890972
1983	0.01647947609839955
1984	0.027704446761692408
1985	0.028523474710361253
1986	0.01770650697844636
1987	0.015249090243628693
1988	0.020582084064616948
1989	0.021892657400192146
1990	0.016566367502962538
1991	0.0152825828851886
1992	0.14832093369086213
1993	0.13493221076577602
1994	0.33158502269153817
1995	0.43074576913357576
1996	0.47969086177911896
1997	0.42127030882882466
1998	0.37205048324310386
1999	0.29818792599824295
2000	0.34620286807450584
2001	0.3692886251018454
2002	0.36561347612995354
2003	0.40586860499105276
2004	0.47068141211136
2005	0.4307914648261501
2006	0.47564807037698265
2007	0.5848169238092902
2008	0.7073930271855932
2009	0.5869655971228497
2010	0.6163873766467022
2011	0.7174898991523317
2012	0.7232103349021601
2013	0.6262875563360355
2014	0.5036669057864835
2015	0.40889346447030234
2016	0.37163251787517193
2017	0.430840161988583
2018	0.44706851508532097
2019	0.4525365775574195
2020	0.3832561500597021