Year	% of total merchandise imports
1969	0.21677643124058057
1971	2.343559775992208
1972	9.886359178229085
1973	9.728687578482731
1974	17.978075517661388
1975	17.36852833265389
1976	16.669292098804327
1977	10.823517573331694
1978	14.338027163352423
1979	4.775349688125729
1980	4.583190850716213
1981	10.79483524775719
1982	6.430948465989124
1983	0.6821315111191033
1984	0.5705811513643989
1985	0.6196122386010868
1986	0.5090281166710462
1987	0.7368267556462889
1988	0.8281169648715265
1989	0.6439896584465974
1990	1.0791698359276565
1991	1.5026402336389573
1992	1.5591829904555217
1993	1.6310236923586778
1994	2.5285190374669546
1995	1.7719175706443115
1996	2.030565845900223
1997	1.6225839416912353
1998	2.102625981306379
1999	2.818408176077703
2000	2.6040579500110144
2001	2.72332598732178
2002	2.8132539311627216
2003	3.377096255035996
2004	3.5207496940618177
2005	4.026994518779034
2006	5.227575450824803
2007	6.326907761489586
2008	6.849857785946773
2009	6.926893279173182
2010	8.13525474467337
2011	9.472597850771287
2012	6.191387061794475
2013	6.123064636464125
2014	7.71282850800392
2015	15.550476516317543
2016	15.979145139134253
2017	15.980651972337082
2018	12.25393254858936
2019	11.527810407734561
2020	15.339254151849355