Year	% of total merchandise imports
1963	3.3632286995515694
1964	3.153988868274583
1967	6.535947712418301
1968	3.138532688669329
1969	2.196252655978366
1970	2.904334331005432
1971	2.7003303595652657
1972	1.6670534540109847
1973	1.433044315992293
1974	2.282467073764187
1975	4.783715640161019
1976	19.59115234136595
1977	3.9284756212866827
1978	12.85179169290947
1980	12.125472202577061
1981	14.063474011064278
1982	22.84319636889197
1983	8.352541167836337
1984	18.014540885019297
1985	24.310934250553387
1986	15.183911404302355
1987	11.07405121433566
1988	10.126752570907838
1989	11.937109484317787
1990	12.317128298979389
1991	23.32658574979806
1992	23.615138955307692
1993	30.024717261265298
1994	28.922873671228672
1995	37.84220213349878
1996	31.076140144478575
1997	30.1515216479367
1998	37.494856295098586
1999	35.294894003097035
2000	31.322431513408294
2001	29.64211269327679
2002	28.907290819853777
2003	35.35626807005996
2004	35.11928491969299
2005	40.27994079785719
2006	34.699762557409244
2007	35.28323649464542
2008	31.947970474149155
2009	39.86940974577685
2010	33.03634277529565
2011	38.000464078436266
2012	37.799082661145825
2013	40.642448501866895
2014	30.81423298114046
2015	24.438324705159474
2016	16.341826392830853
2017	18.663912750027418
2018	18.24897495296611
2019	17.330014942402492
2020	13.05044117984428