Year	% of total merchandise imports
1960	2.2435897435897436
1961	2.013974517057131
1962	1.5829046299960428
1963	2.1244875139768915
1964	8.188235294117648
1965	6.039724361572761
1966	2.604828462515883
1967	1.672800267648043
1968	2.249351905482233
1969	2.7795601380653157
1970	2.733739951972401
1971	2.1055681399146606
1972	1.7998321342481336
1973	1.5108548586483583
1974	8.944481253410244
1975	8.625709966215677
1976	6.607226740976853
1977	8.031773982724449
1978	3.5481091375377165
1979	16.371692346252356
1980	28.309076501839208
1981	31.991431172191003
1982	32.239770029183035
1983	25.2362755690264
1984	21.978114242534495
1985	21.978114248974123
1986	21.978114237443542
1987	19.27217398266789
1988	12.834421323085133
1989	12.834421324164067
1990	10.640999665573883
1991	17.889174959553237
1992	18.917829828119064
1993	18.661507849725194
1994	10.230570562710097
1995	10.467969076076287
1996	16.088595115797304
1997	16.259528295579734
1998	18.30868184955466
1999	20.771789967020084
2000	28.825763266613663
2001	24.526136471135846
2002	20.391276753253226
2003	27.031264489334628
2004	59.32341649558711
2005	24.9663716458498
2006	25.103743089414515
2007	22.36329827243873
2008	23.88997523496076
2009	18.751582440281084
2010	19.207266689426557
2011	24.16122307602676
2012	22.27207026421057
2013	16.917463005961274
2014	15.238919907904908
2015	12.096356940016895
2016	15.274431698370252
2017	18.15000636969516
2018	21.43125931426213
2019	20.154218226857683
2020	14.213578477312746