Year	% of total merchandise imports
1963	0.34843205574912894
1964	0.24213075060532688
1969	0.04503152206544581
1970	0.04325969240866983
1971	0.006887242072784375
1972	0.009423738397022098
1973	0.0009904029949786568
1975	0.006325547159829326
1982	0.012291838987152467
1984	0.10392980595342458
1988	0.6124672478779087
1989	0.05679554451668687
1990	0.2311348843292958
1991	0.14077012709723916
1992	0.000345289157459432
1993	0.0006177169272909181
1994	0.10527650298508891
1995	0.6727066438811345
1996	0.8100847843327168
1997	1.4130592043526415
1998	2.0683872163264256
1999	1.935605280700469
2000	3.9547964500620187
2001	3.4481913985498505
2002	6.110341084481645
2003	3.9679721810481636
2004	3.4957222140417916
2005	3.0662577824726145
2006	2.0262057245786296
2007	1.3121171638211078
2008	2.1322605381678548
2009	1.2336655849852978
2010	1.8582569842612287
2011	4.087050843014227
2012	3.788381108676641
2013	8.284277027488097
2014	5.418960202217313
2015	3.6857443123934277
2016	4.620724885420072
2017	3.4088372870664534
2018	4.217205743264608
2019	5.162019234292022
2020	5.334007664416711
