Year	% of total merchandise imports
1973	3.6899774411859494
1974	0.13774863628850076
1975	1.476716521949963
1976	0.25093302427458025
1977	0.04178334889096324
1978	0.13714407451050883
1979	0.020750547295684926
1980	0.26009745035547926
1981	0.17387237541346548
1982	0.019847176739108862
1983	0.06983605984950329
1984	0.18308216787112203
1985	0.5355934082029317
1986	0.254082772952732
1987	0.09156469411898283
1988	0.6720390237471366
1989	1.3838901389601896
1990	1.5172860959924672
1991	1.8858128859404812
1992	1.43144811049973
1993	1.2575643194568522
1994	2.262801837727418
1995	2.106630995439806
1996	1.6947053300393398
1997	1.2955462518440293
1998	1.9204538665571087
1999	1.4980877307030775
2000	1.2914644094160508
2001	0.9542953809566213
2002	0.9547080565940539
2003	1.2353511739742289
2004	1.6491577391967123
2005	1.4033795617673728
2006	1.2303529230910755
2007	2.03664039503469
2008	1.4779135601296254
2009	2.4709604690878617
2010	2.4476408564545333
2011	3.3062058307449216
2012	4.371243314447803
2013	3.8802179826634116
2014	3.9241797380547347
2015	3.403330720287894
2016	3.8193424082661567
2017	4.6599608124904925
2018	3.3919439959189486
2019	3.813500359725022
2020	4.911225896817192