Year	% of total merchandise imports
1960	2.548476454293629
1961	3.228511530398323
1962	2.614124073351541
1963	3.97887323943662
1964	3.916544655929722
1965	4.040404040404041
1966	3.550561797752809
1967	1.3133208255159476
1968	2.6785714285714284
1969	1.3719661071243012
1970	2.083231896054032
1971	1.537895333824044
1972	1.2823011724402704
1973	1.495450125671932
1974	1.474697561071699
1975	0.894513412379005
1976	1.6183271781311768
1977	0.728679022407413
1978	0.01781895937277263
1979	0.0033745279742926283
1980	0.7466048705085365
1981	0.9459205042502269
1982	0.8767091473858392
1983	1.6914379030924427
1984	3.0754585081617796
1985	2.120656995401793
1986	2.59319068207339
1987	2.00303178699061
1988	1.7753205456714591
1989	1.8821657227380435
1990	1.643016950651582
1991	2.2393203263374724
1992	2.506641810507572
1993	4.386107804091989
1994	4.851167731211314
1995	2.720114622597203
1996	4.191980048648076
1997	3.211423215794872
1998	4.114121233270322
1999	4.04431361218325
2000	2.8342068321285034
2001	2.927635450371267
2002	3.101948150261651
2003	3.671268165376372
2004	3.0285433263241694
2005	2.1039209616456955
2006	2.0668790505239034
2007	2.597463093713268
2008	2.2695497041781714
2009	1.8393985032905524
2010	1.5963358948962638
2011	1.571173765153333
2012	1.5102134898318926
2013	2.061984249351789
2014	2.2233778076927253
2015	2.2439245600822746
2016	3.4577304126345876
2017	3.1206713369777384
2018	3.763420400219189
2019	3.8782421604049815
2020	3.878242189326906