Year	% of total merchandise imports
1960	83.79739336706623
1961	83.2214080772313
1962	82.63778842659868
1963	82.12803563094161
1964	80.57585466496762
1965	79.94757022394305
1966	80.77730388029558
1967	81.54533638000898
1968	81.70524717168233
1969	78.83248396609626
1970	77.82720609086394
1971	78.21356623539553
1972	77.90773902815987
1973	76.69399666867443
1974	76.87697563102395
1975	78.49397636873691
1976	79.49889957314906
1977	78.95089844559713
1978	80.27420087482258
1979	80.02239205266899
1980	78.31529981797507
1981	78.96626592233098
1982	79.79034226675313
1983	78.91902080647571
1984	76.83800424173678
1985	76.37637573067795
1986	78.85350778386967
1987	76.5395700186444
1988	77.55355029939459
1989	77.03149599932168
1990	77.84416635522405
1991	80.11596906102551
1992	80.44041676857294
1993	80.01163174596333
1994	78.59964014304059
1995	75.72890184092235
1996	75.78088292366617
1997	78.89836763257222
1998	78.95068637219315
1999	78.71920560835693
2000	75.36410747836935
2001	73.63237649471162
2002	72.54452472920684
2003	69.97627880808604
2004	67.52520932705546
2005	65.72999163106412
2006	65.0588551048923
2007	62.87612158969762
2008	60.9149307369128
2009	60.08924875074882
2010	59.86537441670189
2011	59.7569612939521
2012	58.762003865304145
2013	58.364741558446156
2014	57.256273664049715
2015	56.645759380298074
2016	56.0566862998233
2017	55.323052579432556
2018	55.24739303783171
2019	54.64314347870955
2020	53.56468503589402