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	3.2176616228703714
2001	3.8830571820616075
2002	3.9993153166874946
2003	3.9409236615724383
2004	3.8177805374539395
2005	3.497101501095841
2006	3.1816110931028247
2007	3.0849857106675973
2008	3.182604416037519
2009	3.5570036509753793
2010	3.5689997273569496
2011	4.365536571880554
2012	3.711219315062696
2013	3.7078962968842957
2014	3.6590440109780027
2015	3.8502584126800805
2016	3.838049985309505
2017	3.820554136348595
2018	3.7125626736137654
2019	3.9284496884815603
2020	3.871764587048545