Year	% of total merchandise imports
1970	7.2727272727272725
1971	7.425742574257425
1972	6.995884773662551
1973	5.899705014749262
1974	9.428571428571429
1975	11.450381679389313
1976	20
1977	29.919137466307276
1978	8.604206500956023
1979	12.5
1980	8.052708638360176
1981	10.84507042253521
1982	12.63888888888889
1983	11.712846347607053
1984	11.631205673758865
1985	5.535055350553505
1986	9.757910873079425
1987	15.22812820861365
1988	9.610308184733064
1989	8.970515624104177
1990	7.360319007191472
1991	11.830695483734772
1992	8.01183350548681
1993	7.725589783068103
1994	9.74396157013569
1995	7.78701093683027
1996	5.848783438007982
1997	2.322621012854509
1998	1.737100919368451
1999	1.4937417944898377
2000	1.4960257782476583
2001	2.9723129646092232
2002	0.004048727853445638
2003	1.28642719729451
2004	1.1010268388664637
2005	0.03167836226161924
2006	1.1410407029184488
2007	0.8277788499363444
2008	0.9002315027162491
2009	1.0968622061809712
2010	1.0008581249658663
2011	0.9264154509662152
2012	1.1222133086453967
2013	1.209768625551399
2014	1.4958844900137662
2015	2.0937943704155657
2016	2.3238274806403623
2017	1.827766062558848
2018	2.2041333225400908
2019	2.210036358446708
2020	1.9038194400258286