Year	% of total merchandise imports
1970	0.5274298818133709
1971	0.4942068599064271
1972	0.503890911199888
1973	0.42922248503555044
1974	0.41438642899612915
1975	1.1134444336479934
1976	1.2264251751497468
1977	1.7866520475558219
1978	2.29818227021285
1979	3.192730160404252
1980	3.622902760985143
1981	3.8372112149181348
1982	2.887644228145023
1983	1.2880153465658315
1984	2.6633072214865123
1985	2.538438862726947
1986	2.3877200318724303
1987	2.695039045111654
1988	2.4002092416003515
1989	1.9470065089176913
1990	0.7133553074287274
1991	0.4375668913026993
1992	1.1367555669484826
1993	0.9495912233651695
1994	1.4888984704971464
1995	1.3438776840083468
1996	1.7752035843896237
1997	1.5472361465866344
1998	1.3274176704003078
1999	1.1876200982664327
2000	1.2670889687782798
2001	1.4713564190346173
2002	1.1060543524309208
2003	1.1630164879641451
2004	1.0588870077186376
2005	0.8436295041069686
2006	0.7713198349186384
2007	0.7226615891129929
2008	0.6737314004517432
2009	0.782384647599455
2010	0.6818356894508322
2011	0.7241862224605834
2012	0.751095561623757
2013	0.7096507538583776
2014	0.884784326969529
2015	0.9481210710886484
2016	0.9502315933776759
2017	0.9795205015140369
2018	1.036325418372317
2019	0.9110834319705068
2020	0.9246935429684614