Year	% of total merchandise imports
1964	57.12250712250713
1965	54.36968290796598
1967	50.70610852533897
1968	58.664834370027485
1969	42.53991127230336
1970	42.04793426158411
1971	28.20422874279504
1973	21.002388473688253
1974	32.08290898895399
1975	25.90557975425677
1976	29.692792563351585
1977	28.13331240243147
1978	53.467801365545284
1979	68.90964703491916
1980	58.91857367499808
1981	67.85136542595232
1982	2.0756021910979565
1983	1.0910225165789331
1984	7.544433212360473
1985	9.05030350895092
1986	11.123321990098786
1987	8.726997931140815
1988	5.6925801660082325
1989	3.5095748351302802
1990	2.0391356763590602
1991	2.4133547307137975
1992	0.764157726685386
1993	0.5375663078917042
1994	0.5293746343015376
1995	1.4440484605521833
1996	0.515096887761906
1997	-5.727983187348644E-09
1998	1.090071393734268E-08
1999	-1.6640487965294991E-09
2000	41.89744840512689
2001	44.61400532753706
2002	21.459660049496847
2003	17.5574895647331
2004	13.028093547197809
2005	10.554286922288357
2006	10.05248592874842
2007	10.972606700475682
2008	15.351271645041498
2009	0.03569497186081468
2010	0.10317602172541217
2011	0.09941052671972533
2012	49.828233088093356
2013	76.68298657487578
2014	44.21248511797082
2015	0.06965630340087402
2016	1.5457772578467774
2017	1.735799714786806
2018	1.3469725921151954
2019	0.8465100085077454
2020	0.4013082678333915