Year	% of total merchandise imports
1962	14.550264550264549
1963	19.282511210762333
1964	24.304267161410017
1965	22.10953346855984
1966	0.37593984962406013
1967	0.9803921568627451
1968	11.482026487281908
1969	13.351361792543944
1970	16.9626427225363
1971	13.091495236119313
1972	14.832005363451175
1973	23.443752779012893
1974	32.703326373954134
1975	26.782026544690137
1976	14.20173843771883
1977	15.950499360132985
1978	1.6006729207412074
1980	1.7424778201346605
1981	0.3832046539531048
1982	2.0403772910310147
1983	6.653077840466033
1984	1.2468633289494737
1985	2.3365678730286255
1986	4.954994596535446
1987	2.1818665787169618
1988	3.381100042421481
1989	3.440982611500791
1990	5.200694472704812
1991	12.735907773461722
1992	11.212835801465076
1993	5.774727960011796
1994	10.464615867475487
1995	10.359628271850339
1996	8.818846674724236
1997	8.962321901852004
1998	11.548400506130902
1999	11.014178981330721
2000	0
2001	0
2002	0.004852389019802568
2003	0
2004	0
2005	0
2006	0
2007	0.004714665469435893
2008	0
2009	0
2010	0
2011	0
2012	0
2013	0
2014	0
2015	0
2016	1.1397573352564543E-14
2017	0
2018	0
2019	0
2020	-1.1396389380992867E-14