Year	% of total merchandise imports
1960	80.07529407515185
1961	79.95445747854963
1962	78.80479503500841
1963	77.91261351878242
1964	75.89028972488899
1965	75.95365298482606
1966	77.1427743597742
1967	77.58675007099272
1968	77.27002049440883
1969	76.33047865602728
1970	72.59841192973018
1971	73.19741652073488
1972	72.55363576461549
1973	73.48394327733011
1974	73.95721857121563
1975	75.94907168460172
1976	75.26617713237084
1977	74.35580791341883
1978	74.6801146688796
1979	72.86081205526791
1980	71.95229130671727
1981	75.29728279198133
1982	74.89749334351808
1983	73.73581481512915
1984	72.38526289389095
1985	72.20726634448039
1986	74.53292971787864
1987	73.65230243681724
1988	74.64863446706228
1989	74.58688372243994
1990	76.79898707806949
1991	79.21099453793025
1992	78.78337831924718
1993	79.19028806799966
1994	76.80673975627363
1995	74.52888596197921
1996	73.8616410423402
1997	75.4897514784969
1998	76.05364735254011
1999	76.2786711907614
2000	73.13266320401631
2001	72.11641368669997
2002	71.2029808182898
2003	69.22061962140337
2004	67.60197088881503
2005	65.74790540396592
2006	64.86677000028583
2007	63.155343167154385
2008	61.660641989942796
2009	61.41559952577228
2010	60.790015775045056
2011	59.35130553681507
2012	58.83140450870536
2013	59.07459789880035
2014	58.69048321762453
2015	58.56486697776504
2016	58.62849465348403
2017	58.19734205061472
2018	57.90155579955204
2019	57.20878235091005
2020	56.783153049537326