Year	% of total merchandise imports
1960	86.3538873994638
1961	87.19590268886044
1962	85.44810881311719
1963	84.41371880050278
1964	85.67726330338633
1965	84.1404856633283
1966	84.1042584434655
1967	84.09146791246619
1968	79.06681479130296
1969	77.76392974059857
1970	80.27081178903826
1971	83.67788908670582
1972	81.33024072216651
1973	79.88534882814024
1974	80.2401425969091
1975	76.01461660383293
1976	71.49822302933173
1977	68.57854652386342
1978	76.19986619247156
1979	65.79467409615135
1980	65.00705243178297
1981	70.28976270898391
1982	81.69793089661147
1983	82.0811443479504
1984	75.01461988304094
1985	75.7492561709083
1986	74.06891005556253
1987	70.86645904757954
1988	72.69357424871986
1989	64.23710170231341
1990	61.025579669434094
1991	61.97423897708762
1992	64.95858192989458
1993	65.61031868311706
1994	68.264764033168
1995	65.8351472852936
1996	70.3874677676479
1997	74.07964352341422
1998	75.615918276102
1999	74.40548844142575
2000	60.05204575631725
2001	59.733931592569725
2002	69.73111883959545
2003	72.29805513208754
2004	72.77411410459985
2005	47.295773864527405
2006	45.150697546686665
2007	45.29800596098571
2008	47.1363382812819
2009	48.91410725135255
2010	47.72570865606206
2011	47.39684228192945
2012	46.40190882136867
2013	47.76952128037336
2014	48.962078576800955
2015	48.86599902271529
2016	47.44449672933397
2017	46.535029945217666
2018	45.309633279319456
2019	43.77499727864514
2020	46.94825390417054