Year	% of total merchandise imports
1969	28.57142857142857
1970	27.802690582959645
1971	33.11036789297659
1972	30.031948881789138
1973	33.01282051282051
1974	36.373756348709385
1975	33.35603885888516
1976	21.354425818849414
1977	20.62300231455968
1978	26.145747421368277
1979	26.470568988646402
1980	20.320830046140237
1981	22.964473170520105
1982	21.279711246554964
1983	25.696906370116057
1984	18.861675659956703
1985	22.62699847659812
1986	25.415163159976366
1987	23.649623044486226
1988	25.954750817648925
1989	26.75274569848165
1990	29.76433139221285
1991	29.998373395129548
1992	29.207957021258636
1993	27.141412419332873
1994	26.515663631182374
1995	29.354932367424492
1996	20.46144619427089
1997	27.813055870715186
1998	27.428186003497935
1999	28.370091770183343
2000	7.129624232556235
2001	11.023174765178737
2002	11.350360402400817
2003	5.173221320133696
2004	6.25339641848205
2005	8.853265690332812
2006	10.681018623633607
2007	7.947523056478005
2008	7.410143520386327
2009	12.172998117942493
2010	9.351707082726827
2011	11.699630136655703
2012	8.933576146027129
2013	0.06076320031244609
2014	0.08240223506048906
2015	0.056773511284605
2016	0.027345625957665612
2017	0.0710211437896558
2018	0.07876582335919534
2019	0.03407642553788005
2020	0.0122647006477522