Year	% of total merchandise imports
1977	1.2621935143685739
1978	1.3460103369171665
1979	1.4656679690029573
1980	1.4095104705882449
1981	2.689815857801859
1982	1.630043542016031
1983	4.130131033924098
1984	-1.935848891979333E-09
1985	0.7930486512107606
1986	1.1131361925707082
1987	1.4617137777601719
1988	2.675268043518444
1989	1.5633798657090827
1990	1.3375168228846885
1991	2.004979017415988
1992	2.259276750949128
1993	1.7087296905670106
1994	1.7810220190611201
1995	1.4211545003587356
1996	2.78621782841267
1997	1.6470042127913116
1998	1.1758874869161655
1999	0.9565495297695948
2000	1.2591932679980216
2001	1.0351872516341039
2002	1.1252531264874963
2003	1.3037417365710549
2004	0.7295719254802573
2005	0.4305244661061127
2006	1.6939734179282309
2007	2.7996718220227272
2008	5.083317435575565
2009	2.600420897833495
2010	2.979855076080703
2011	1.9092569732821634
2012	5.99376648073412
2013	6.208772167133317
2014	7.413794703284885
2015	3.040108735022745
2016	2.4031718452772273
2017	1.0765937201370672
2018	0.3089268302118653
2019	0.18418705436544958
2020	0.15096824690789118