Year	% of total merchandise imports
1960	0.20911752404851527
1961	0.09601536245799328
1962	0.47826086956521735
1963	0.2826455624646693
1964	0.30441400304414
1965	0.8005336891260841
1966	0.3032140691328078
1967	0.11634671320535195
1968	0.1251564455569462
1969	1.693192510705103
1970	3.9032635882739064
1971	3.3765719378156254
1972	4.577796828118302
1973	7.485965763393167
1974	4.868663277640843
1975	3.996610799679671
1976	7.833676088175808
1977	8.607736123881024
1978	7.0363548962286835
1979	5.046931945957305
1980	8.861481709638849
1981	13.59501515496179
1982	11.904937800008646
1983	17.348120641623506
1984	15.137775217894959
1985	10.46796689655952
1986	2.5690159366579914
1987	5.126920712430401
1988	1.5879476059707984
1989	2.24019912881145
1990	0.9864562510107134
1991	5.609901455774293
1992	2.0088306151875837
1993	0.2921551940157319
1994	0.2616196504149612
1995	1.357196647713816
1996	2.1727942504243565
1997	0.7932361758975381
1998	2.0951575658948784
1999	1.0508667079294396
2000	3.7741054002837573
2001	2.6451861808100623
2002	0.4289520554582752
2003	3.217001311078139
2004	5.150054300438309
2005	8.076542136151192
2006	3.163668892708453
2007	0.33195785213660894
2008	3.0030528108894656
2009	1.362134402384796
2010	3.899511311692444
2011	4.736066802443452
2012	3.2182133046881187
2013	7.90431839988964
2014	6.573516948358726
2015	4.752583694420899
2016	6.066932508341546
2017	2.669674587771891
2018	8.560682019921776
2019	8.516103188725637
2020	2.8895587272294923