Year	% of total merchandise imports
1961	2.886836027713626
1962	2.0588235294117645
1963	5.555555555555555
1964	5.900621118012421
1965	4.953560371517028
1966	4.341534008683068
1967	4.116222760290557
1968	2.439430126308535
1969	2.561981399313128
1970	5.6057613312590675
1971	3.806118697146045
1972	5.761656221502164
1973	2.631326457183977
1974	13.385048107709393
1975	14.438375541595097
1976	15.146623467740556
1977	4.977511408047859
1978	8.732871930909308
1979	6.7400448355536104
1980	13.429399647689197
1981	4.433329054476163
1982	3.7300040196720397
1983	2.398550470363435
1984	4.754321457833531
1985	3.4873784711358846
1986	2.7684244015984603
1987	4.188478221806048
1988	4.25319804397686
1989	2.4333694233068366
1990	3.204840740918876
1991	4.39863616228675
1992	5.3691313450502784
1993	4.806525252592452
1994	6.708665397333006
1995	6.829954345348995
1996	5.2478689584628455
1997	10.98161896866125
1998	9.794878703810554
1999	12.869050229149714
2000	10.363156295175573
2001	10.45738753313722
2002	8.06679126870029
2003	8.297422850667925
2004	49.58502327530122
2005	54.60305728009044
2006	56.1385999972049
2007	60.073837273477956
2008	43.451531239057104
2009	38.98535849600405
2010	40.100498469783716
2011	60.46032236432146
2012	52.51695091301253
2013	51.42573061476187
2014	4.445235494516819
2015	6.328815818130486
2016	2.224066020988473
2017	31.778302346150983
2018	27.71777719319154
2019	24.877946957956457
2020	24.389204314928545