Year	% of total merchandise imports
1964	0.05238344683080147
1966	0.09111617312072894
1967	0.044802867383512544
1969	0.03454662354736246
1970	0.02809304416226542
1971	0.020592581825229547
1972	0.05753305453773988
1973	0.013475599731566052
1974	0.036189205682414884
1975	0.04492850688708915
1976	0.6988759756333695
1977	0.025504804639546203
1978	0.026797209206589002
1979	0.04386538713128064
1980	0.022030037028992148
1981	0.01599817396638549
1982	0.012956225466336575
1983	0.028266743839364134
1984	0.02977204435727681
1985	0.018723202416541327
1986	0.014037381107220368
1987	0.022734863208553138
1988	0.025879598494812365
1989	0.034873087792352715
1990	0.020208380691340594
1991	0.03662696027320414
1992	0.0878420068483795
1993	0.06733906654414129
1994	0.042032949636989926
1995	0.0024629800603982203
1996	0.02485869508224175
1997	0.020961915137723695
1998	0.07115911662188924
1999	0.03226182955625355
2000	0.09614689008499977
2001	0.05014172310661122
2002	0.05470545040236898
2003	0.018611401612198906
2004	0.017249065928547316
2005	0.024235062720113887
2006	0.18800165841005345
2007	0.22754650498221746
2008	0.5720427030685004
2009	0.3803918419549292
2010	0.5734676381102488
2011	0.17679421066378137
2012	0.24800397303823335
2013	0.04241179317684685
2014	0.08358960216898886
2015	0.05984698506637285
2016	0.024103482417980677
2017	0.05546497470015255
2018	0.04615861892134067
2019	0.036128550295105304
2020	0.05740970475575407