Year	% of total merchandise imports
1960	0.9054283466342841
1961	0.9397883290904595
1962	1.0788827731499124
1963	1.2945163676684033
1964	1.3349258353200248
1965	1.8391130912604143
1966	2.3081270163742102
1967	2.508737773324308
1968	2.732620627430616
1969	2.264165861009619
1970	2.5296408750131607
1971	2.452318702949914
1972	2.4440185055117283
1973	3.297388697298383
1974	2.849041021135679
1975	2.779950981368017
1976	2.698517445864621
1977	2.686979743368073
1978	2.702084679742047
1979	2.19175174833734
1980	2.9893736816665664
1981	3.190239043042215
1982	3.635724029844043
1983	3.6648267865850572
1984	3.2490970775970083
1985	3.1521204777923453
1986	2.166490580534769
1987	1.8163664961391368
1988	1.9600468447968669
1989	2.155048831731949
1990	1.9562046734916836
1991	2.329755399023993
1992	2.394787664598964
1993	2.582869137215434
1994	2.900570272293168
1995	2.9623688742035315
1996	2.9577648923985995
1997	3.289236981887788
1998	3.412958853478526
1999	4.033389778873475
2000	3.6018610896317624
2001	3.8457508767125894
2002	4.143785870843263
2003	4.042253488597022
2004	4.081282153842344
2005	4.213231156374612
2006	4.112250672203239
2007	3.847411475230648
2008	3.50838422359955
2009	4.5114409576347905
2010	4.310714211126683
2011	4.083938046915741
2012	4.1936183226286605
2013	3.7283360414077613
2014	3.5491716954128996
2015	3.3593937931163587
2016	3.745361548782946
2017	3.733797850380972
2018	3.331183088224151
2019	3.07689291183499
2020	3.50810649899571