Year	% of merchandise imports
1964	0.330720606493551
1970	1.8163771788578154
1971	3.1306541055885666
1972	4.104530368194251
1973	4.395602382100946
1974	3.021925421152866
1975	2.614202884800678
1976	2.240213621591505
1977	2.3236696169480906
1978	1.7288536838676691
1979	1.8932102788170584
1980	0.9949028782868489
1995	0.7384860438567524
1996	0.8977029992716752
1997	1.5073643155084782
1998	1.7004755295019776
1999	0.7921883895072769
2000	0.6981668535333749
2001	1.6182297062862476
2002	2.3236244704045195
2003	2.2488509558038996
2004	1.940121894377075
2005	1.4372717223895244
2006	2.1733845819659257
2007	1.980146292029255
2008	2.262338098599481
2009	1.3801404783543618
2010	1.662517642499849
2011	0.7596093546773262
2012	1.130075254629147
2013	0.844851173194792
2014	1.0481427752047456
2015	0.9824493415917044
2016	1.0299065544166803
2017	0.5923113839314036
2018	0.579209405655427
2019	0.7067019699757187
2020	0.4868299933436873
2021	0.5401456459816705