Year	% of total merchandise imports
1961	3.558718861209965
1963	3.0211480362537766
1964	3.2362459546925564
1965	3.812316715542522
1966	2.602219364101337
1967	1.3249983012842292
1968	3.064055889009151
1969	3.269788941842548
1970	2.2383364268411614
1971	2.7936656161238864
1972	1.9318133116187373
1973	2.306141647628007
1974	3.6540170940170937
1975	3.981247929883564
1976	4.288955121877136
1977	3.2971141837978504
1978	0.8213922469841515
1979	4.540922686485996
1980	1.1179687405269731
1981	2.048367571363884
1982	0.9113509797761054
1983	0.1270324802496065
1984	0.17849487203527467
1985	0.27170167944978507
1986	0.7380936226439889
1987	0.3426827160077789
1988	0.41254809098203093
1989	1.4922506885743678
1990	3.120782889652322
1991	1.8102472925176905
1992	1.656107588641367
1993	1.867021043302354
1994	2.443704108554121
1995	8.798990165841184
1996	1.4419510586379258
1997	1.3903455320389542
1998	1.3696487950022442
1999	1.8318867756784623
2000	5.36545087118732
2001	2.4847453439479694
2002	4.484277876253401
2003	2.945941687149214
2004	3.881688265332955
2005	3.730592964921544
2006	4.168984326513804
2007	3.956143148452551
2008	3.4724523727988053
2009	3.683266265477525
2010	4.30132602559676
2011	3.0433176957613455
2012	3.6699536133826913
2013	2.977930403196588
2014	5.233594850834214
2015	4.3224693348655165
2016	6.437557982829854
2017	5.450013729723766
2018	5.304212847566463
2019	10.037313142691024
2020	9.373280987504087