Year	% of total merchandise imports
1977	0.2695417789757413
1978	0.3824091778202677
1979	2.2058823529411766
1980	0.43923865300146414
1982	0.1388888888888889
1983	0.3778337531486146
1984	0.14184397163120568
1985	0.7380073800738007
1986	0.009293248454604525
1987	0.02048991129523126
1988	0.01698857844458514
1989	0.5869313025213074
1990	0.8241608901664406
1991	0.23305360004840944
1992	0.3356793200345058
1993	1.6720090181544012
1994	0.40084909378393757
1995	0.8568257400879221
1996	0.5988601478004513
1997	2.7239019136022073
1998	1.988097963738435
1999	3.3651471024164983
2000	4.4009563599269645
2001	2.9251747362488274
2002	3.53929222203228
2003	3.3044354784073424
2004	3.1329105236587003
2005	2.8599041828571177
2006	3.4686111026224915
2007	3.654099921712539
2008	3.3316410409209953
2009	4.492979559608208
2010	6.527719266917548
2011	4.6179256461884775
2012	4.5208850069071955
2013	6.43734845774265
2014	6.146886751349249
2015	8.585580118302609
2016	6.912426578271229
2017	7.08943493232948
2018	8.457643705212488
2019	6.757696406183624
2020	8.493625874369313