Year	% of total merchandise imports
1974	6.305077036784354
1975	61.457455770850885
1976	11.359832635983263
1977	2.636941148268009
1981	1.3681450233724775
1982	1.9986009793144799
1983	2.636941132510334
1984	2.119468165555822
1985	2.6369411584268474
1986	2.636941153649529
1987	6.5809038223518055
1988	5.066733611997094
1989	6.728907831434089
1990	5.945201828065379
1991	7.7392474753408464
1992	6.927414508788645
1993	5.717787079809325
1994	3.7074920948099575
1995	1.78007938636548
1996	1.37155935471307
1997	1.5509329199594595E-08
1998	-1.2915021535146107E-08
1999	3.465311191019022E-09
2000	0
2001	9.386490206159266E-15
2002	0
2003	0.016007053652139898
2004	0.03669920552400403
2005	0.012245458889187147
2006	0
2007	0
2008	0
2009	-1.1566146765832037E-14
2010	0
2011	0
2012	0
2013	0
2014	0
2015	0
2016	0
2017	0
2018	0
2019	-1.1246638668150984E-14
2020	0