Year	% of total merchandise imports
1960	0
1961	0
1962	4.026845637583892
1963	2.955665024630542
1964	0
1965	1.090909090909091
1966	0
1967	3.436988543371522
1968	3.038387431451015
1969	1.7091660923501033
1971	0.9920900925056979
1972	0.525772227959816
1973	1.6252173255725946
1974	0.95578812473302
1975	1.7145369284876903
1976	4.188622639332282
1977	3.9597982811279206
1978	4.296638804908412
1979	2.2379774940707473
1980	2.601549413735343
1981	2.2582178755772992
1982	5.47095010252905
1983	6.03071992927786
1984	3.4906540552713716
1985	5.473458267976554
1986	2.008357953066879
1987	0.6739096541433832
1988	0.64255530572081
1989	2.149253730170606
1990	2.0075005317869454
1991	6.247399120430987
1992	1.0363618182034917
1993	1.960527564906262
1994	1.0777853051672106
1995	1.2167225865744917
1996	1.4904151037830553
1997	1.664568781567358
1998	2.2443764977395015
1999	0.15029020043551994
2000	0.4080900540749578
2001	2.0817358551165706
2002	1.4067605196160509
2003	1.704405524973734
2004	1.7678315998246974
2005	2.6429043796698393
2006	1.8491095495313354
2007	2.275318395584509
2008	2.2008701407602
2009	2.401654711116708
2010	-4.7176025100880624E-15
2011	3.6792014833242623E-06
2012	7.715362167561382E-05
2013	1.3357115465932766E-06
2014	0.0010522952295503212
2015	0.00010760751145875271
2016	9.686752801640384E-05
2017	0.0069465630963214875
2018	0.12291556551545753
2019	1.6690562047537143
2020	0.07456053121594056