Year	% of total merchandise imports
1960	6.55432070452626
1961	6.0183768331525656
1962	6.040172280892974
1963	5.964237400419754
1964	5.642971153623725
1965	5.29228859903727
1966	5.12317366678298
1967	4.79627896027688
1968	4.458433879126109
1969	4.304721694305721
1970	4.1807211886744176
1971	3.7508013043043977
1972	3.7933646424464222
1973	3.819410148577549
1974	3.587464374589904
1975	3.4147585221657306
1976	3.3008075370707846
1977	3.7399456219446487
1978	3.5572163554372067
1979	3.64605580848724
1980	3.6327044103171233
1981	3.9612542032124707
1982	4.1664077674007505
1983	4.452812620766889
1984	4.687809634110377
1985	4.591007126068729
1986	3.8715371951226776
1987	3.633833175095381
1988	3.7266504783416643
1989	3.73967708389867
1990	3.5222434544682155
1991	3.4997613454959193
1992	3.453892878086526
1993	3.6898211943353942
1994	3.900181363565409
1995	3.9050173807988355
1996	4.1070113904014836
1997	4.362685671295366
1998	4.563455810179107
1999	4.69119069803781
2000	4.932933655012996
2001	5.028493043426583
2002	5.005263346766193
2003	4.685853278173066
2004	4.560000957001771
2005	4.597176647052261
2006	4.616672617122801
2007	4.495948237609285
2008	4.457986918089699
2009	4.584694030148525
2010	5.0074221644958765
2011	5.170334594727154
2012	5.389670126308791
2013	5.235778044823944
2014	5.166159277650592
2015	5.316382742507794
2016	5.351293443699631
2017	5.305440823091372
2018	5.237948933547853
2019	5.44650049892446
2020	5.318083605216893