Year	% of total merchandise imports
1969	0.08432271991365353
1970	0.451293013865384
1971	0.005848637267516668
1972	0.01031140441328109
1973	0.007842009645671864
1974	2.3789437280249004
1975	6.636279303345866
1976	0.2509249657538631
1977	2.5544775027399265
1978	4.589733982765081
1979	1.233696564717132
1981	34.47924995713629
1982	15.122413546899388
1983	1.2336965648885825
1984	11.868740542234818
1985	2.80289294107219
1986	15.096881637499179
1987	5.190032638095317
1988	0.03699444568788316
1989	0.25368038070710075
1990	0.09326863544781111
1991	0.2965214968010341
1992	0.1538140811718515
1993	0.10782441076472324
1994	0.2117861382846594
1995	0.31901946789538405
1996	1.7525564089063737
1997	0.08251318653686948
1998	1.2184695679661544
1999	0.2971170030377722
2000	0.7114415515039728
2001	0.04981570865682008
2002	0.33554698313789455
2003	0.04475464477130813
2004	0.02899538224821098
2005	0.02392537374574022
2007	0.01748999567958691
2008	0.0004122572523662349
2011	0.20831726227097008
2012	1.8130700229068815
2013	0.6599176503671835
2014	0.9233030356102481
2015	0.9761842103549683
2016	1.0812969576738267
2017	1.150856236114649
2018	2.28327110715446
2019	2.616550435195384
2020	2.6325756555649225