Year	% of total merchandise imports
1963	89.65209634255129
1964	88.99335466404135
1965	86.4312118289939
1966	87.41790273780533
1967	84.84953837833662
1968	85.4729857105154
1969	83.34853244165231
1970	83.6944469417723
1971	82.90331726679898
1972	72.12233364175148
1973	70.17835963871909
1974	67.67525046841854
1975	79.55377315860822
1976	75.26238527075417
1977	74.3034803728335
1978	76.36033857315599
1979	73.50325021680904
1981	73.91817126485044
1982	69.70156250000001
1983	65.73951315421593
1984	67.93675220251606
1985	81.20243234171434
1986	83.6334711014892
1987	84.81035778765973
1988	82.66264607834988
1989	83.81013639973435
1990	81.56440632487278
1991	85.05528856687945
1992	80.44060017299901
1993	76.85629462927184
1994	74.03442914517417
1995	74.25536378219039
1996	70.39228680511164
1997	69.27477445975244
1998	66.46433897385967
1999	68.1542215315831
2000	70.19118691833886
2001	68.7922780002236
2002	46.29509418596321
2003	45.1210842604885
2004	40.9561412669122
2005	56.53536277038014
2006	61.08965715022349
2007	56.90829140264611
2008	53.92333542558452
2009	51.587801855168195
2010	62.790541240871114
2011	60.18094971968092
2012	58.08938732993373
2013	57.77998472733539
2014	57.96946870227977
2015	59.98496432841671
2016	60.09225456090655
2017	60.07054803777977
2018	59.621726532634845
2019	58.0818433229353
2020	53.55670468525864