Year	% of total merchandise imports
1977	29.965240321227377
1981	3.648386728993273
1983	29.96524032722711
1984	8.904590588616665
1985	29.965240319708307
1986	29.965240319719268
1987	0.6361330712638057
1988	0.257885904140071
1989	0.7768966524082109
1990	0.6335737236312933
1991	0.10530615062694032
1992	0.32090880465572674
1993	1.0887501225677114
1994	0.9861597204135548
1995	1.8960641201577355
1996	4.210759130511519
1997	1.9738916627548657
1998	1.1910036898998344
1999	0.7958652725651428
2000	1.5662043909631396
2001	0.9865304881680211
2002	0.8546315636888602
2003	0.5216911144742402
2004	1.6234006474017177
2005	2.0514705380339513
2006	6.617785901779699
2007	6.841201611674258
2008	16.978852462326092
2009	18.886546669570457
2010	19.02175767738146
2011	11.468570734381704
2012	16.13694215284445
2013	11.884466581262899
2014	13.444351500647903
2015	16.263244911721504
2016	13.051389810685542
2017	22.990988616270684
2018	15.459937699063344
2019	13.447785531479273
2020	16.638329295911365