Year	% of total merchandise imports
1960	0.04854368932038835
1974	0.49977874378530335
1975	1.9981549041808193
1976	0.8918342527803725
1977	0.43991330175804766
1978	0.9282233714986099
1979	1.6137068201948626
1980	1.1294326077528536
1981	1.1907004785410151
1982	0.6655277955726386
1983	0.25074152218450907
1984	0.30691200414979614
1985	0.8408922801417059
1986	0.4251946477691268
1987	0.5001789131415592
1988	0.6175447960916012
1989	0.5826734990690913
1990	0.37481767228411195
1991	0.34835614385232944
1992	0.3314953854385343
1993	0.32455310883705807
1994	0.38371853876581824
1995	0.7672714530425889
1996	1.0968903392250997
1997	1.4189327382728414
1998	1.4226638416948374
1999	2.0660951182420737
2000	2.314959639399463
2001	2.7530754335761545
2002	4.721583444495108
2003	4.019905396701205
2004	4.513263864434176
2005	2.395444337034043
2006	0.7020541349368717
2007	1.4908740017617372
2008	0.6115554950525858
2009	1.1241614150261643
2010	1.4195005292526333
2011	1.9137367766405917
2012	2.3131441622194053
2013	2.409206079473605
2014	2.685955774249491
2015	1.978862705331614
2016	1.9159951720474533
2017	1.9190898713158988
2018	2.9570512629388817
2019	2.034380877323847
2020	1.481888593702274