Year	% of total merchandise imports
1962	0.351150994927819
1963	0.9859154929577465
1964	0.8052708638360175
1966	0.7640449438202248
1967	1.547842401500938
1968	1.4751552795031053
1969	0.005859764124961423
1971	1.1273273563162913
1972	1.613951153244145
1973	7.456611077476287
1974	0.3639960490881104
1975	2.006752395707032
1976	1.0414744758734085
1977	2.111676388259172
1978	1.6111309099548585
1979	2.7031057631495012
1980	4.690678670553463
1981	0.5915629900140299
1982	3.390010035000891
1983	0.36049457818516856
1984	0.4507614491729178
1985	0.21512799985063694
1986	0.10378159371166568
1987	0.28778588300615265
1988	0.652879689074264
1989	0.48949138535391973
1990	0.1431468001750425
1991	0.45685300487514935
1992	0.2573234533461905
1993	0.17264985011283163
1994	0.04492069645596941
1995	0.094365094418556
1996	0.3435223097569775
1997	0.17368948934225564
1998	0.16770591553574693
1999	0.40678365593568033
2000	2.8916371000975065
2001	2.6710322738899936
2002	2.127369719176518
2003	1.0847046124545732
2004	1.8049751914131458
2005	2.7940967493926054
2006	3.0815411892502165
2007	1.594458412492086
2008	0.919874624311664
2009	1.4155392843095587
2010	1.931699968298139
2011	2.2569739090326424
2012	1.9932310418829813
2013	1.4469350280719995
2014	0.749981001595866
2015	0.758572218378355
2016	0.8937184160918411
2017	1.8957974096565053
2018	0.48355928126251624
2019	0.4395186944660874
2020	0.43951869003393523