Year	% of total merchandise imports
1962	0.07401924500370095
1965	0.1027221366204417
1966	0.04798464491362764
1967	0.18214936247723132
1968	0.1946787800129786
1969	0.24421288542700714
1970	0.15409909005572528
1971	0.2574185611582413
1972	0.31178379591035515
1973	0.2402703409848873
1974	0.039032193561287745
1981	0.962883226147476
1982	0.9058630089071762
1983	0.11677309169957131
1984	0.49521290098557763
1985	0.7846595292688255
1986	0.7779572510826451
1987	2.70627488379042
1988	2.3824024501840584
1989	2.195622698728376
1990	2.8790677180242588
1991	1.7129799333422815
1992	0.9280994812064911
1993	2.370827436461409
1994	2.974823518718188
1995	3.4281056814125717
1996	3.078506257811801
1997	2.079845741135531
1998	3.2009141653631787
1999	2.3063247608794506
2000	5.621578257484859
2001	6.441570174370274
2002	7.009451912883848
2003	8.264784037552065
2004	8.358232049355735
2005	9.275853023369866
2006	10.728935930573364
2007	27.005489666705056
2008	17.064733869340692
2009	11.22474081521369
2010	12.707501470749403
2011	12.236867237327676
2012	15.260951375423193
2013	13.938151682980498
2014	16.52007517400239
2015	22.348017685936497
2016	16.92921510705679
2017	18.957575240403695
2018	21.323485311737237
2019	18.781516354497736
2020	18.874416754478236