Year	% of total merchandise imports
1963	0.2932551319648094
1964	0.27548209366391185
1966	3.4666666666666663
1967	0.3898635477582846
1969	0.0025700334104343356
1970	0.006693589772194829
1971	1.2064613831398283
1972	0.6392135890187689
1973	4.291777524388698
1974	2.043427728481706
1975	4.564586051601498
1976	3.5600386164652615
1978	0.0444339119616091
1979	2.3944425284524806
1980	0.06240933081491707
1981	3.8119922765146903
1982	0.4740728205715253
1983	0.025713010081837497
1984	0.05334520987503795
1985	0.5332732552818704
1986	0.275256589399624
1987	0.32447053037835294
1988	0.1329990467864277
1989	0.16645489208274633
1990	0.18036351644617918
1991	0.30111856281359983
1992	0.606239690911067
1993	0.26647717949984195
1994	0.2135649470588865
1995	0.4963036439528936
1996	0.5927851652850934
1997	0.28066422207937614
1998	0.17273122260596266
1999	0.7333468596842796
2000	0.005232053597628848
2001	1.9349989003234098
2002	2.84123178215657
2003	3.0777316960109666
2004	1.7340593790744887
2005	3.0676958487913843
2006	2.5036181747181168
2007	2.040935696516838
2008	2.0106519081632057
2009	3.0599302015056
2010	1.607769702507519
2011	2.493815676116456
2012	0.4262162336541071
2013	0.2811739086675083
2014	0.36759563020160124
2015	0.2928481550819937
2016	1.6778085480975664
2017	2.2129389059999878
2018	2.6531564312086675
2019	2.337071806940926
2020	0.7684238542250417