Year	% of total merchandise imports
1960	13.600000000000001
1961	11.553784860557768
1962	15.41095890410959
1963	12.413793103448276
1964	12.068965517241379
1965	17.79935275080906
1966	13.522012578616351
1967	11.027568922305765
1968	33.95522388059701
1969	4.343880346951954
1970	11.710034314555209
1971	12.222402861323362
1972	8.869743991384796
1973	12.954572411339104
1974	14.561114249806876
1975	10.593337985787503
1981	0.39881154160601406
1982	2.0782761261437024
1983	1.5767730701578424
1984	1.9297908638391383
1985	4.535289643721248
1986	3.8305691963190136
1987	2.1707336218596693
1988	3.4657610151155263
1989	2.184076997790138
1990	5.658103212062167
1991	4.710714789723467
1992	1.456131274020605
1993	4.585575901915387
1994	4.7575464838564905
1995	12.767979775013933
1996	6.9949837772144665
1997	-3.3751182309568646E-08
1998	2.0072627484911355E-08
1999	-4.702384617384671E-09
2000	0
2001	0
2002	0.0022502283092941983
2003	0.093546856568891
2004	0.127364681911511
2005	0.053659226114416037
2006	0
2007	0
2008	0.0006540898306931174
2009	3.094710491142439E-15
2010	0
2011	0
2012	0
2013	0
2014	0
2015	0.0007053707415142156
2016	0.0006866433693052977
2017	0.0008063508499882752
2018	0.000666815530566369
2019	0.00015102492157663397
2020	3.766492388775171E-05