Year	% of total merchandise imports
1967	0.3982249718134775
1969	0.17162656649719893
1970	0.43460397169595977
1971	0.6266077889205288
1973	0.8752600354418678
1974	1.2674668392906474
1975	1.592780184514276
1976	1.2893161848974914
1977	0.2189023486216129
1980	0.005255136896316149
1981	0.0018466675038226017
1982	0.3758179583131713
1983	0.2830248111581663
1984	0.2657083070598564
1985	0.5388854411176467
1986	0.3310397712731054
1987	0.25303854222386596
1988	0.3259868088843427
1989	0.4219696429740132
1990	0.420621347092585
1991	0.40147282182367106
1992	0.3690051770145833
1993	0.34575757856595607
1994	0.504776817487711
1995	0.8114525477249532
1996	0.5682569121554754
1997	0.6958517874094129
1998	1.2608306004414476
1999	0.6492326171867425
2000	4.324932194399668
2001	4.51177746591713
2002	2.934336680166057
2003	2.6757548717026456
2004	2.390753309239542
2005	2.269548716057278
2006	2.3463173065160654
2007	2.685645933295358
2008	3.6077562255139175
2009	2.7264521028140085
2010	3.1246134374726515
2011	3.989826098657354
2015	4.332886990578822
2016	1.4552021203476333
2017	1.506706929650769
2018	1.8993189976150275
2019	2.104109268978976
2020	2.5108615401262195