Year	% of total merchandise imports
1964	1.7241379310344827
1966	1.5
1967	3.4653465346534658
1968	3.524229074889868
1969	2.564102564102564
1970	2.0761245674740483
1971	5.504587155963303
1972	5.539358600583091
1973	8.64488043062623
1974	11.802355350742449
1975	11.40425886916804
1976	12.881694834563199
1977	14.790242001204692
1978	13.927138248485324
1979	16.81411841983722
1980	18.915505011438256
1981	16.13481128761563
1982	7.217597796661016
1983	7.064825063766303
1984	9.10119036899638
1985	9.97138683392302
1986	9.30234509845609
1987	7.538444483157278
1988	7.1834597929192725
1989	8.523427403600516
1990	8.08073801761809
1991	9.370816599732262
1992	8.82322338986578
1993	3.686362469375565
1994	2.692860856251215
1995	1.3614959527342299
1996	5.265746606587648
1997	6.708086803921058
1998	5.671479457174914
1999	6.169785230145134
2000	23.837160426196164
2001	12.704278232752314
2002	11.657236443520208
2003	13.036984823593645
2004	14.063477308532555
2005	11.585870604532195
2006	10.580749056081464
2007	14.640010359032438
2008	14.955630926462677
2009	19.307521843254484
2010	26.446013580600848
2011	25.990058506544596
2012	31.881587230963582
2013	33.40325885117344
2014	38.21034325073316
2015	40.20270833077097
2016	38.352648945803814
2017	40.431810264612714
2018	39.957674554866244
2019	40.77707407712225
2020	37.00128209407561