Year	% of total merchandise imports
1968	3.4090909090909087
1970	3.6764705882352944
1971	0.9803921568627451
1973	5.152224824355972
1974	8.878732338816324
1975	8.785735103197943
1976	10.350368809272918
1977	8.078865801859719
1978	1.5597422320732257
1979	4.007088707295462
1980	9.119491140390732
1981	11.198264675691902
1982	12.326954556387031
1983	20.867620835828333
1984	4.895196536757805
1985	10.001734770404545
1986	18.36685978347059
1987	8.481257935449337
1988	11.543024647957752
1989	11.862474846195733
1990	9.515412015339114
1991	22.327701162622926
1992	23.72765863989974
1993	45.9060190484252
1994	37.901906610373906
1995	35.31424085312656
1996	13.471894533885663
1997	19.10811371757431
1998	21.502098772113115
1999	32.395917546561485
2000	22.922453867013054
2001	20.411012825259128
2002	20.80390648563227
2003	34.607029383276526
2004	18.700760397748482
2005	15.103224022601555
2006	10.300575791359496
2007	11.783152027878831
2008	14.019227837847334
2009	22.164963976553896
2010	22.20071323466523
2011	15.711031797295
2012	15.22185117463212
2013	14.9291337080713
2014	18.364472752576656
2015	22.721545601112048
2016	21.726271211332687
2017	22.66464184950904
2018	19.979974623022112
2019	20.581863799015217
2020	27.321688206758786