Year	% of total merchandise imports
1964	0.05238344683080147
1965	0.050050050050050046
1969	0.014394426478067691
1970	0.0023410870135221183
1971	0.00565286559908262
1972	0.004314979090330491
1973	0.03018534339870796
1974	0.006386330414543804
1975	0.008685064528359241
1976	0.05182018396165306
1977	0.02931465097574398
1978	0.13748133419032618
1979	0.06993450974658119
1980	0.026250745057911203
1981	0.010903214104479286
1982	0.0007003365116938689
1983	0.020414870550651873
1984	0.0014323320309342796
1985	0.0016642846592481177
1986	0.013379378867819414
1987	0.0011065641384694004
1988	0.0034559095457385655
1989	0.01351870316888735
1990	0.02238867503195092
1991	0.010385029173508682
1992	0.013011450076066938
1993	0.06324854714657477
1994	0.028941356265764783
1995	0.06885323000285286
1996	0.07547016878684698
1997	0.07579877292882715
1998	0.0842250152684321
1999	0.1280101250541245
2000	0.07213162334098795
2001	0.11740333811104023
2002	0.16729027473515998
2003	0.1843723966594087
2004	0.24400720332129286
2005	0.48757581623043295
2006	0.6344490132607942
2007	0.5642294676283793
2008	0.5793707502000864
2009	0.5599993996373576
2010	0.5157108061857542
2011	0.5201110613307964
2012	0.7328071306982548
2013	0.9653748835837097
2014	0.9608204768595761
2015	1.137877974408715
2016	1.116192044482185
2017	0.9578954487315148
2018	1.2531111721054966
2019	1.3024695365682963
2020	1.1410669440160084
