Year	% of total merchandise imports
1960	6.830309498399147
1961	8.23045267489712
1962	8.113391984359726
1963	7.561436672967864
1964	8.438287153652395
1965	12.358393408856848
1966	9.073900841908324
1968	6.090026478375992
1970	7.719094602437609
1981	0.3087849312953528
1982	0.04329989551251281
1983	0.2112699588815096
1984	7.421522517873674
1985	10.024254747261315
1986	23.5941954024722
1987	45.87523302673047
1988	42.5696756558596
1989	15.864518511897153
1990	2.8562855593699026
1991	0.24660085068857235
1992	0.12475796342956447
1993	0.04547618908445843
1994	0.06147136150298337
1995	0.13252305319112562
1996	0.12511869724941674
1997	0.2588585145641503
1998	4.473539677196463
1999	0.22607142569812627
2000	0.02194710782483687
2001	0.0027485336565040716
2002	0.0004198711481571182
2003	0.0022117722107444873
2004	0.00021777577801861407
2005	8.505935396755424E-05
2006	0.005833225260106182
2007	0.20206041765340974
2008	0.04690071845979021
2009	0.16975899053421722
2010	0.003295111020270179
2011	0.3017234545092323
2012	0.5889777801354223
2013	0.232340646773448
2014	6.266869420956514
2015	6.014278785606423
2016	5.503108113464173
2017	4.997071262641154
2018	4.332825370355363
2019	3.8331342747440966
2020	3.6675445643361706