Year	% of total merchandise imports
1960	1.1883168224733733
1961	0.966950497907346
1962	1.7908032227421453
1963	1.6691154863355862
1964	2.0837922375435043
1965	2.1323834386512797
1966	1.6386299916647724
1967	1.5044631556639594
1968	1.2722030436764389
1969	0.9697403261944151
1970	1.5885718936327293
1971	1.6305639873620523
1972	2.421773624422337
1973	2.653522557751485
1974	3.5994675095483646
1975	3.1875848109380196
1976	2.142179877662181
1977	1.992271290568538
1978	1.635988533524472
1979	1.651614120552141
1980	1.7062194847824896
1981	2.039451499807769
1982	2.448598701969268
1983	3.0322945581998524
1984	3.3450251649486153
1985	3.781185050283421
1986	3.284624287973587
1987	4.004024276932818
1988	3.196005992264485
1989	3.370782148450499
1990	2.5029963388504695
1991	2.260030258377825
1992	1.8465387434600526
1993	2.713256871344913
1994	2.9219439894340593
1995	3.364271534283677
1996	4.200633448381718
1997	4.30018571580058
1998	3.7840380646473
1999	3.1559727441482415
2000	3.1463141838589297
2001	3.8175866314517153
2002	3.951139282867645
2003	3.89186994733296
2004	3.769951619469757
2005	3.449628511419939
2006	3.144821277969239
2007	3.0555586193304083
2008	3.158928624931592
2009	3.526677926598824
2010	3.5371252419312738
2011	4.317054030721013
2012	3.673877624037273
2013	3.6687178717324818
2014	3.6154497845686264
2015	3.8051937444722044
2016	3.784938446131562
2017	3.7659893250133325
2018	3.6572444510472737
2019	3.8673634437190825
2020	3.821286847558942