Year	% of total merchandise imports
1960	80.67327546649464
1961	79.35963402926409
1962	78.69226563045959
1963	78.47348042957364
1964	77.13762281424904
1965	77.05912394168311
1966	78.12398564831378
1967	78.95222301389569
1968	78.41384439481193
1969	76.78191107524248
1970	77.02301491391658
1971	78.03219279437079
1972	77.16630444927401
1973	77.96242728553146
1974	77.0402907037657
1975	80.54961811541509
1976	81.37538830013993
1977	80.5766055146291
1978	80.7255041601028
1979	79.5085132435993
1980	77.09834199809858
1981	79.13817927315613
1982	79.41564296523585
1983	79.36613551146546
1984	77.6035298949782
1985	75.2492086186886
1986	76.82763686708928
1987	75.17942033341004
1988	75.12588600398772
1989	74.46983605658748
1990	74.91044144363242
1991	76.14034555687982
1992	77.40322361916174
1993	77.77256674562591
1994	71.94040072122111
1995	68.8835651752811
1996	69.6562921866872
1997	72.16936742998115
1998	70.93168623460915
1999	70.17053323738482
2000	66.99147846813284
2001	64.82981817392395
2002	63.83577230478794
2003	62.09761640902207
2004	60.63144001281028
2005	59.19007890392055
2006	60.74512400531275
2007	60.29650082529808
2008	59.82467593221996
2009	58.9856521706264
2010	58.755464974575986
2011	57.089808731889335
2012	56.337629979828755
2013	55.56408006914937
2014	53.786575505514634
2015	52.01281137017521
2016	50.53852916246061
2017	50.08068383316302
2018	50.54189675669566
2019	50.031824028096906
2020	48.21670552657679