Year	% of total merchandise exports
1960	77.72585669781932
1961	80.41543026706232
1962	78.57142857142857
1963	81.52173913043478
1964	78.48898216159496
1965	79.70102281667978
1966	82.06707734428474
1967	82.31511254019293
1968	72.53927988735668
1969	77.06453455168476
1970	80.11781332763269
1971	87.17915783614839
1972	86.13976654957025
1973	84.29314104988693
1974	73.78892233454997
1975	76.64416311318315
1976	80.11780429400955
1977	84.67437611731762
1978	86.40331983334303
1979	86.71001200795423
1980	84.26879764013225
1981	83.02279656605552
1982	82.10647914561247
1983	82.92398533197147
1984	88.86920806484888
1985	82.92398533709995
1986	90.1021933127568
1987	77.93783169067476
1988	72.93206197854589
1989	70.71680376028202
1990	72.94436238306254
1991	74.89421720733426
1992	76.20913205884652
1993	71.9772569041541
1994	70.06767453731851
1995	71.31617767579085
1996	65.15748031496062
1997	70.91914305459571
1998	65.17711527170722
1999	82.96419312416471
2000	70.44405543761314
2001	69.79702295911017
2002	73.70221111802863
2003	70.65827765587159
2004	68.47939763810619
2005	72.12539504395453
2006	68.79110548417952
2007	67.87785513082069
2008	64.63066302384763
2009	67.14205636236088
2010	68.00662605445955
2011	68.08567790220066
2012	69.71972803743878
2013	62.74753074417438
2014	63.623039720559404
2015	66.78291620743954
2016	67.41757693352191
2017	72.82839182955578
2018	70.77306881702621
2019	71.62982981815
2020	68.72374290417737