Year	% of total merchandise imports
1971	0.20763665770550566
1974	0.6930311532857263
1975	1.1007465469804594
1976	1.2771336240306226
1977	0.15782582047138796
1978	0.433528588729878
1979	1.1447386699405668
1980	0.6447245557962118
1981	1.4551952112927722
1982	0.8682062205792299
1983	0.6604241416528106
1984	1.1729771735078753
1985	1.2874867054470642
1986	0.6706423222081366
1987	1.8570493874700402
1988	1.3650181261980987
1989	1.0839709051105186
1990	1.783200171773006
1991	2.018764530669994
1992	2.8780882308302487
1993	2.7774051826069774
1994	1.9221346455461887
1995	3.5327201574277654
1996	2.620667386681215
1997	2.081158046335131
1998	2.411803213357367
1999	1.5344742482920328
2000	3.1414368456405106
2001	2.9785882272468722
2003	2.562265788717884
2004	4.722358267661701
2005	4.793529408767218
2006	5.465892056584476
2007	7.201864516596321
2008	8.328257111943216
2009	7.777511041741119
2010	9.11853830822909
2011	8.78814947111652
2012	11.272524037863613
2013	9.746743350018471
2014	11.756253755686947
2015	22.520971659568794
2016	18.968928592640445
2017	19.036281438383863
2018	16.681647484604493
2019	16.452366914119366
2020	20.875938027823118